Title of Invention

" A PROCESS FOR THE PREPARATION OF A SOLID CARBON CHARCOAL RESIDUE"

Abstract This invention relates a series of steps to provide an economical production of a carbon based fertilizer and soil amendment made during the capture of greenhouse gases from the combustion of fossil and nan fossil fuels. The invention uses biomass and other carbonaceous sources through pyrolytic conversion to gases and charcoal to allow for the further production of co-products, such as hydrogen and ammonia. The invention also relates to the combination of hydrated ammonia, combustion flue gas exhaust, and charcoal, provide for the conversion of the charcoal into a valued added soil amendment to return essential trace minerals and plant nutrients to the soil. The ability to produce a large volume carbon co- product while removing mandated emissions and producing renewable based hydrogen provides an economic gain to a large number small and large businesses and increase the chance of achieving significant reductions in greenhouse gas emissions.
Full Text 5 The Production and Use of a Soil Amendment Made By the Combined
Production of Hydrogen, Sequestered Carbon and Utilizing Off Gases
Containing Carbon Dioade
10 Cross Reference to Related Application
Applicants hereby claim the benefit under 35 U.S.C. Sec. 119(e) of the U.S.
Provisional Patent Application No. 60/420,766, filed October 22, 2002, entitled
"The Production and Use of a Soil Amendment made by the Combined
Production of Hydrogen, Sequestered Carbon and utilizing Off Gases Containing
15 Carbon Dioxide", which is fully incorporated herein by reference.
FIELD OF THE INVENTION
This invention relates to the production and use of a nitrogen enriched carbon
based fertilizer and soil amendment made during the pyrolytic conversion of
20 carbonaceous materials which produce charcoal and the reaction of said charcoal
with ammonia, carbon dioxide, water and other components generally found in
flue gas emissions. The invention also relates to the optimization of that ebarcoal
with mineral and plant nutrients to produce and use the combined materials as a
soil amendment and fertilizer. The invention also relates to the use of the material
25 as a way to economically store carbon and captured greenhouse gases in the soil.
BACKGROUND OF THE INVENTION
The increasing anthropogenic CO2 emissions and possible global warming have
challenged the United States and pther countries to find new and better ways to
30 meet the world's increasing needs for energy while, at the same time, reducing
greenhouse gas emissions. Recent evidence has shown that melting glaciers,
freshwater influxes into the oceans and thinning ice at the North Pole are likely
the result on the earth's warning. The National Acadamy of Sciences report in
2002, on Rapid Climate Change, has detailed evidence that changes in the earth's
35 climate has occurred very rapidly in the past. Due to the mounting evidence of


WO 2004/037747 PCT/US2003/033553
5 global warning, nations have wisely sought to work together to reduce potential
impacts of greenhouse gas emissions through negotiated agreements, most notably
the Kyoto Agreement. The agreement, signed currently by a majority of the
planet's nation states, seek to limit greenhouse gas emissions at 1990 levels.
However, many are calling for greater reductions. On February 24, 2003, Prime
10 Minister Tony Blair, one of the United Stetes closest allies, said in a speech, "It is
clear Kyoto is not radical enough," and "We know now, from further research and
evidence, that to stop further damage to the climate we need a 60% reduction
world-wide". This number represents trillions of dollars in goods, services and
electrons created through those emissions by businesses that perceive risk and loss
15 of income of such reductions. Rowever, evidence is mounting that a path does
need to be implemented quickly and the quickest way to implement a portion of
the global solution is to develop commercial and environmental synergies that
reduce risk and potential losses. Solutions that stabilize income potential for the
worlds business community, establish sustainable methods of growing food, and
20 help meet the energy demands of the economically developing societies will meet
far less resistance than solutions with little corresponding value other than
sequestration.
The challenge humanity faces is how to significantly reduce of our non-renewable
25 greenhouse gas emissions. The use of reforestation is one solution, but that is
limited as forest and biomass utilize available soil nutrients, primarily nitrogen.
Wulliam Schlesinger, Dean of the Nicholas School of the Environment and Earth
Sciences at Duke University noted in 2001;
30 "However, the rate of carbon storage in forests declines as they mature, so the
only way by which, reforestation programs can continue to sequester carbon over
the long term is if they transition into programs that produce commercial biomass
fiels; that is, we must replace fossil fiel wifii binmass energy. It would require
reforestation of all the once-forested land on Earth, including that now used for
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5 agriculture or covered by urban areas, to store 6 PgC/yr—the amount emitted each
year from fossil fuel combustion" (Vitousek 1991).
In order to moat these increasing demands, methods have been proposed and are
being researched to sequester carbon in the ocean through fertilization and carbon
10 dioxide uptake (US6,200,530) and through pumping of CO2 into ths ocean
(US6,598,407). Other methods, such as injection in coal seams of underground
reservoirs are also being researched heavily. All these methods represent an
expense except in specific areas where CO2 can be used for enhanced oil
recovery.
15
Many methods have been developed for removing other greenhouse gases and air
pollutants such as of nitragen and sulfur oxides from flue gas exhaust of fossil
fuels. Some of these processes result in a byproduct fertilizer, which create a
profit center through utilization of the materials. For background purposes, some
20 related patents that sapport this approach are discussed here. US 5,624,649,
teaches a method for producing potassium sulfate while removing sulfur dioxide
from flue gas. US 6,605,263, describes methods for producing ammonium sulfate
during the same. US 4,540,554, describes the use of potassium compounds to
produce potash fertilizer while scrubbing for sulfur oxides and nitrogen oxides.
25 US 4,028,087, describes the production of a fertilizer from baghouse sludge-
ammonia-acid salt. US 5,695,616, teaches the production of ammonium sulfate
and ammonium nitrate via the use of a election beam and ammonia. In US
6,363,869, potassium hydroxide is to produce potassium nitrate and potassium
sulfate from flue gas.
30
The capture of sulfur and nitrogen gases and their conversion into fertilizers does
help. They create potent greenhouse gases however it is small in comparison to
the impact of carbon dioxide. However, as a fertilizer, they can increase plant
growth and help increase natural sequestration. The volume of carbon that has
35 grown and is growing in the atmosphere means the most direct path is to directly
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5 reduce the size of our carbon dioxide pool by capturing and utilizing carbon and
carbon compounds in long life application. Capturing carbon while creating a
value added carbon based fertilizer/soil amendment would help solve the
problems related to biomass sequestration. It can help restore nutrients that have
been removed through aggressive harvesting and provide plants with essential
10 nutrients that allow them to utilize the higher levels of CO2 in our atmosphere.It
is also one of the few existing distribution channel (i.e. the farm/agrochemical
Industry), which is paid to move millions of tons of natural and aynthotic
compounds to farms worldwide. However, the most rapid adoption comes with
profits and income. Therefore, this solution should yield more food, fiber, and
15 energy than we currently aie able to achieve, and it should do it in a way that
could be sustaimed for fronsaods of years without degrading the environment.
Traditional agricultural practices such as land clearing and cultivation of soil have
led to land degradation, mineralization of soil organic carbon (SOC) and the
20 subsequent loss of SOC as carbon dioxide (CO2) emitted to the atmosphere (Lal
et al, 1998; Hao et al., 2001). These activities have reduced soil's natural ability
to grow plant life in abundance. Additionally, the depletion of trace minerals from
our soils are impacting the health of our ecosphere and risk creating mankind as a
species depending on a smaller and smaller window of elements to support a
25 growing world population. This reduction in elemental diversity could have long
term effects on the future health and development of our species.
The use of carbon-based fertilizers to effect long-term storage of the carbon and
remove atmosphere carbon dioxide requires that the carbon must be stable and or
30 convert in the soil to a stable material. The earth has a carbon that meets these
requirements. That carbon is charcoal. Charcoal makes up a significant
percentage of our soil. In five representative soil samples, USDA soil scientist
Don Reicosky, reported that up to 35% of soil carbon was comprised of charcoal.
What is exciting is that not only is charcoal found in soils in great abandance but
35 also that it provides substantial value once there.
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5 Reports of historical use of charcoal as a soil amendment date back over 2000
years to the Amazon rain forest (Glaser, 1999) Man-made sites, known as "Terra
Preta" (black dirt) have been purported to be created by an indigenous people who
were able to overcome poor quality soils by adding charcoal. These sites, with
their broken pottery and other indicators of human occupation, after a thousand
10 years sites are valued today because they out produce non-manmade soils by 3
fold (Mann, 2002). The ability to increase crop yields dose not just apply to old
charcoal, Steiner, (unpublished) recreated Terra Preta soils in Brazil with fresh
charcoal form a local supplier and reported up 280% increases in biomaas yields
over fertilization alone. His crop yields were even higher, Glaser (1999) reports
15 17% increase in rice yields with charcoal additions over a control. Hoshis reports
20-40% increase in plaot height and volume with the addition of bamboo charcoal
over controls with an optimum at 100g per square meter per year (or 1 too per
hectare or 890Ibs/acre). Nishio in studies using commercial charcoal made from
bark, found alfalfa growth increases of 1.7-1.9 times over fertilization alone.
20

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5 Charcoal is a form of sequestered carbon that will not rapidly decompose and
return CO2 into the atmosphere. It is very resistant to microbial decay, (Glaser
1999; Glaser et al. 2003a). Studies have shown that Terra Preta soils contained up
to 70 times more pyrogenic C (charcoal) than the surrounding soils. The
hypothesis is that charcoal persists in the soil for centuries due to its chemical
10 stability caused by the aromatic structure. (Glaser, el al. 2002) The material's
chemical structure is resistant to microbial degradation (Goldberg 1985; Schmidt
et al. 1999; Seiler and Crutzen 1980). Glaser confinued the stability by 14C dating
of the soil charcoal with results showing ages of 1,000-2,000 years.(Glaser et al.
2000), Other reports show that charcoal can even be found in highly weathered
15 environments with carbon dating it back thousands of years. (Gavin, 2002;
Saldarriagae et al.1986).
Charcoal has unique physical structures and chemical properties, which if
optimizer, offer significant value as a soil amendment Its open porous structure
20 readily adsorbs many naturally occurring compounds. This property allows
charcoal to act as a natural sponge. In crop faming, applied nutrients are rapidly
teached below the root zone of annual crops (Calm et al, 1993; Melgar et al.,
1992) however, charcoal can adsorb and hold nutrients at the root level of plants
and reduce teaching. (Lehmann, 2000). Charcoal also acts to increase soil's water
25 holding capacity and increase cation exchangc capacity. (Glaser, 1999). Evidence
in the Terra Preta soils show that these traits do not diminish significantly with
time and therefore new exchange sites are being created, however slowly.
Charcoal does breakdown through abiotic oxidation of elemental C to CO 2,
howevar, under environmental conditions, this process is extremely slow (Shneour
30 1966). It is known that can fungi and bacteria are capable of de-grading low-rank
coals such as brown coal (Fakoussa and Hofrichter 1999). It has been shown
(Hofrichter et al. 1999) that extracellular manganese pcroxidase is an enzyme of
wood-rotting and leaflitter-decaying basidiomycetes capable of degrading
micromolecular fractions of brown coal (lignite). As a result of such decay,
35 reactive products such as phenoxy, peroxyl and C-centred radicals are formed
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5 which subsequently undergo non-cnzymatic reactions leading to the cleavage of
covalent bonds, including the fission of aromatic rings. (Glaser, et al.2002)
Charcoal has the potential to form organo-mineral complexes (Ma et al. 1979),
which are found in Terra Preta soils (Glaser el al. 2000). The assumption is that
10 slow oxidation (biotic and/or abiotic) on the edges of the aromatic backbone of
charcoal forming carboxylic groups is responsible for both the potential of
farming organo-mineral complexes and the sustainable increase in CEC (Glaser
1999; Glaser et al, 2000, 2001a). From the stand point of carbon sequestration,
this means that it is not a permanent removal but from the vantage point of a soil
15 amendment, it has value now and will continue to add value to soils just as the
charcoal added to the Terra Preta soils have done for the last few thousand years.
The open pore structure can provide sate haven from famual predators for essential
symbiotic microbial communities (Pietkien, Zackrisson et al. (1996). In her
20 research she investigated microbial communities that would repopolate the ground
after a forest fire. In the experiment she prepared four adorbents, pumice (Purn),
activated carbon (AcTC), charcoal from Empetyum nigrum twigs (EmpCh), and
charcoal from humus (HuCh) (pyrolyzed at 450C). A 25 gram microcosm of
untreated humus was covered by 25 grams of the above adsorbents and moistened
25 regularly with litter extract that contained 170 mg 1-1 glucose, which was included
in the total concerntration of organic C (730 mg1-1).The adsorbents bound organic
compounds with different affinities; the adsorbing capacity increased in the ordor
Purn microbial biomass in the adsorbents followed the order EmpCh > HuCh > ActC >
30 Purn (V, Fig. I). Activiry, measured as basal respiration and rate of bacterial
growth rate, were higher in both EmpCh, HuCh than in ActC or Purn. In her
analysis, she observes that microbes attached themselves to the charcoal particles
and preferentially degraded the adsorbed substrates as with biological activated
carbon beds (De Laat et al. 1985, Kim et al. 1997). She concluded that charcoal
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5 formed by combustion when moistened with substrate-rich litter extract was
capable of supporting microbial communities,
The importance of soil fertility and for need for thriving symbiotic miciobial
communities cannot be understated. While we no not understand their functions,
10 the millious of specieas of fungi, bacteria and other microbiota represent over 15%
of all species on the earth. From their roles nitrogen fixing to providing plant
defenses, the life below ground represents an ecosystem with thousands to
hundreds of thousands of interacting species. (Hanksworth et al. 1992; (Truper
1992). The development of a carbon based fertilizer should have aspects that
15 facilitate soil microbe activity. In the production of charcoal, volatile organic
species are evolved during the rise in temperature. From 280C to 450C this
exthermic proces can continue in an oxygen starvad environment as is well
known to those skoilled in charcoal production. These gases (Runkcl mi Wilke,
1951) as the move through the carbonizing material, are distilled with other
20 molecules forming both shorter and longer chain molecules. Longer chain
molecules have higher dew points. These new compounds then condense to form
intraparticle condensates. The continued rise in temperature during the
exothermic phase repeats this process many times before vapor phase molecules
leave the char particle. Under increased pressure and subsequent high daw points,
25 thses compounds will remain as additional char (US 5,551,958). Evidence that
the condensates provide a source of nutrients for microbial activity from charcoal
pyrolyais were demonstrated by the US Geological Survey (Michel, 1999). At
condense. To drive off these remaining molecules require higher temperatures, as
30 is well known to those who make activated carbons, and when charcoal is halted
at lower temperatures, these compounds remain. This evidence supports the
results from Pitikein that charred wood perform better as a host site for microbial
communities due 10 the incomplete combustion and available sources of nutrients.
There may also be other factors also present which are currently unknown.
35
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5 It is well know to those skilled in the art of pyrolysis that above 425C, that the
pipes and reactors remain clear of tar deposits. By removing char from its heated
environment at close proximity to this number we can allow a certain amounts of
volatile organics to remain in the char while still converting the material into a
stable form of carbon, The majority will convert into polynuclear aromatic and
10 heteroaromatic ring systems as structural units. These have been shown to provide
charcoals with chemical and microbiological resistance (Haumaier and Zech
1995; Glaser et al.1998), but not total immunity.
Limited work has been published on optimizing charcoal production for use as a
15 soil amendment Glaser, Lehmann and Zech's work in Biology and Fertility of
Soila, 2002; 35:219-230 present an Excellent review of published material. This
work reviews the evidence and past work in studying charcoal production and
impact as a soil amendment. The Food and Fertilizer Technology Center for the
Asian and Pacific Region instructs in a leaflet for fanners on the use of charcoal
20 that they can experience 10-40% increases and show research results of 138%
increases with charcoal plus fertilizer over fertilization alone. The leaflet instructs
methods of making rice hull char in an above ground mound charring system.
Instructions were limited to charring the material until it was "smoked black" and
to not let it turn to ash.
25
The use of charcoal and activated carbon for fertilizers and soil amendments is
well known and has been referenced by US 2684295. US 4529434, US 4670039,
US 5127187, US 522561, US 5921024, YS 6273927, and US 6302396. Each of
these teach that charcoal or activated carbon is a fertilizer component but do not
30 instruct on its manufacture or optimization for this purpose.
Other patents give more details. US 3259501 teaches the use of an ammoniated
and charred rice hulls for fertilizer and US 2171408 teaches the use of sulfuric
acid activated carbons for fertilizer due to high ion exchange capacity. No
instruction is given on the manufacture of the charcoal. US 3146087 describes a
35 process for preparing a fertilizer containing water-insoluble nitrogen from wood
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5 utilizing high pressure aid long doration times, however it offers no carbon
capture instruction or optimization.
BR 409658 instructs on using charcoal with phosphoric acid, potassium nitrate
and ammonia but again no instruction of carboa capture.
10
BR 422061 teaches that acid groups created in charcoal by chlorine treatment
allow adsorption of nitrogen compounds allowing up to 20% available nitrogen.
However, the inventor does not relay that this can be developed by a state within a
temperature profile of carbonization. He does offer that a gas treatment of chlorine
15 on a moistened carbonized materials and a treatment on the same by ammonia gas
or aqueous ammonia followed by blown air will produce a good ammonia
bicarbonate fertilizer hut gives no reference to CO2 or capture mechanism to
achieve this product
20 This corresponds to research (Assada etal, 2002) which showed that lower
temperture charcoal produced at 500C adsotbed 95% of ammonia versus
charcoal produced at 700C and 1000C which bad higher surface areas but only
adsorbed 40%. The study noted that acidic functional groups such as carboxyl
were formed from Iignin and cellulose at 400-500C. (Matsui, et al. 2000;
25 Nishimya, et al, 1998). It concludes that chsrcoals regardless of source, that
form acidic funcitional groups at these temperatures will preferentially adsorb base
compounds such as ammonia and that the chemical adsorption plays the primary
role over surface area. This research points to a key ingredient in optimizing a
charcoal to set as a nutrient carrier; carbonizarion conditions.
30
US 5676727 teaches a method for producing slow-release nitrogenous orgnic
fertilizer from biomass, In this process, pyrolysis producto obtained from the
pyrdlysis of biomass use a chemical reaction to combine a nitrogen compound
containing the -NH and.2 group with the pyrolyais products to form a mixture.
10

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5 The procses is included for reference but does not mention C02 sequestration nor
the ability to utilize the process for fine gas cleanup.
US 5587136 instructs on the use of a carbonaceous adsorbent with ammonia in the
process of sulfur and nitrogen flue gas removal. Reference is made to it being an
10 active code but no instructions were provided in its manufacture and no reference
to carbon dioxide removal.
US 5630367, provides instructions on converting tires into activated carbons for
use as a fertilizer. It instructs using a combustion process with a temperature of
15 400 to 900 C and preferably 700-800C with air, CO2 and water vapor. While no
specifics are-given of yields, the process does detail removal of ash, therefore the
temperature of the char is likely to higher than 700 and most of the tire will have
been converted to carbon dioxide. The designation of the material as a good
carrier for nutrients due to its high cation exchange capacity is a reasonable
20 assusnption on the surface but as was shown by (Tryonl948) cation, exchange
should be converted to cation availability becouse the sum of the determind
cations in charcoal exceeded the CEC by a factor of about 3. Glaser explains that
cations in the ash contained in the charcoal were not bound by electroslatic forces
but present as dissolvable sails and, therefore, readily available for plant up-take.
25 This increase in "exchangeable" cations, leads to the determination mat charcoal
CEC measure ment is but one component. The mineral ash percentage contained
and now concentrated in the charcoal, allow the charcoal to act as a fertilizer
itself. Indeed, our microscopic studies of growth in plants in charcoal reveal that
root hairs envelope and exetend into char particles, probably working in harmony
30 with symbiotic microbiotic communities to extract these nutrients. It is not
explained to what extent tire char particles liberated during combustion have trace
minerals, however the advantage of returning trace minerals back to the soil from
which they were remove via harvest is an important trait of charcoal based
fertilizers. The above patent offers that the material may be used as an adsorbent
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5 in sulfur and nitrogen flue gas removal however there was no methodology
offered as to its use or any particular advantage to the material for this purpose.
US 5,061,467 teaches dry methods from scrubbing sulfur dioxide. Activated
charcoal is mentioned but no mention is made to optimize that for ammonia
10 adsorption or for developing its value as a fertilizer co-product Gypsum is the
only co-product mentioned.
US 6,405,664 instructs on using ammonia liberated from decomposing organic
materials. Fly ash to be mixed with dried organies residues as a soil amendment
15 or additional fuel but the incorporation of dried waste with ammonia is not
mentioned.
US 5,587,136, teaches the use of ammonia with a carbon adsorbent but does
speeify the use for CO2 removal. Furthermore, the temperature ranges selected
20 will not support any substantivs formation cf a carton based fertilizer and
concentrations of ammonia added would riot yield conversion percentages needed
for this application. The instruction is for choosing a carbon black, which have
different physical properties than charcoal and no information is taught on its
development or use as a fertilizer.
25
US 6,439,138, teaches that charcoal is shown to capture mercury and heavy
oiganica. No reference is made to utilizing char for capture of CO2 and the
invention teaches that char is preferably formed at 1200F (648C) to 1500 F
(815C). Given the small particle size 10,000 microns to 1,000 microns, the
30 temperature at this size will not optimally produce a material for ammonia
adsorption and nor will increase the materials effectiveness as a fertilizer and thus
could represent a disposal issue.
US 6,224,839, offers extensive refereneo to the role played on the adsorption of
35 NOX by carbon in the presence of alkali and alkaline earth metals. This work is
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5 incorporated here by reference. The invention discloses the value of char as an
adsorbent but offers that the adsorption falls off as sites aie filled. No attempt was
made to show carbon being replaced as sites were filled, nor to create a value
added compound. Instead, the intent was to recycle carbons rather than process
them into a fertilizer.
10
In US patent 6,599,118, pyrolysis gasses are added to the combustion gases to
remove NOx but the chat is burned and no fertilizer is produced.
US 4,915,921 teaches the capability of using a coal based activated carbon with
ammonia injection for the removal of sulfur oxide and nitrogen oxide at 100-
15 180C but not carbon dioxide. The carbon was not assumed it would be used as a
fertilizer, not was it optimized.
US 5,584,905, teaches the use household garbage to convert flue gas emissions
into a fertilizer. His effort should be admired as he taught ways to increase the
20 materials value as a fertilizer. His teaches that of ammonia derived from
decomposing meats, proteins and fatty acids found in household garbage
combining with carbon dioxide to sulfur dioxide to form ammoium fertilizers.
While one could envision such a system, the commercial practicality and potential
difficulties is gaining environmental permits would prove difficult. He does not
25 teaches the use of char nor the direct use of added ammonia in such a system.
In almost all prior inventions, the amounts of fertilizer generated was so small that
the focus has been exclusively of the scrubbing performance. However, a
conceptual framework of seeking to increase a sequestering co-product's value
30 while still conducting essential emissions removal including cartion dioxide has
not been demonstrated.
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5 SUMMARY OF THE INVENTION
It is therefore an object of this present invention to provide an effective soil
amendment containing a source of nitrogen or may also include one or more of
soil nutrients. Additionally, this material will have properties that provide long
term benefit to the user by increasing cation exchange, increasing water holding

capacity for course soils, decreasing nutrient leaching rates, increasing the soil
carbon content and a majority of ita dry weight represents sequestered carbon.
25 Another object is that this material be made during tha capture of a CO2 stream or
during the capture process of CO2 with one or more of the naturally occurring
elements and compounds, sulfur oxides, nitrous oxides, mercury, lead and/or
heavy metals. A further objective is that a charcoal from the pyrolysis,
gasification, and/or portial oxidation of biomass and other carbonaceous materials
30 be produced under conditions of this patent and providing for enhanced ability to
adsorb ammonia, and decrease nutrient leaching rates. The invention also the
object of reducing CO2 emissions cost of producing the fertilizer and includes the
option of utilizing the pyiolysis gas to either be used to produce power, or to be
converted to hydrogen and then into ammonia thereby enhancing the total carbon
35 sequestered by the system. U.S. Patent No. 6,447,437 Bl provides the path to
sequester carbon by scrubbing off gases of power plants and other sources of
carbon dioxide with ammonia to produce ammonium bicarbonate or urea. This
invention is an improvement in that it takes the production of these carbon-
nitrogen compounds and creates them inside the carbon char structure and
40 leverages the total amount of sequestered carbon by a factor of 3 to 8 times.
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5 BRIEF DESCRIPTION OF THE DRAWINGS
Eig- 1 abows a method for production of renewable hydrogen and its use in
}ammonia production, scrubbing and fertilizer production process in accordance
with an exemplary embodiment of the present invention.
10 Fig. 2 illustrates the design of a simple conversion cyclone system where
ammonia is utilized for scrubbing a simulated flue gas component producing a
sequestering fertilizer in accordance with an exemplary embodiment of the present
invention.
Fig-3 provides an illustration of a design to remove CO2 emissions in industrial
15 combustion facilities such as a coal-fired power plant by flexible combinations of
the synergic processes, the pyrolysis of biomass and or carbonaceous materials
and ammonia scrubbing in accordance with an exemplary embodiment of the
present invention.
Fig. 4 provides an illustration representing the environmental, societal and
20 technical benefits derived from using CO2 emissions with the carbon capture into
fertilizer and the production of renewable energy in accordance with an exemplary
embodiment of the present invention.
DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS
25 The pyrolysis of biomass materials and the steam reforming of the off gases
and/or pyrolysis liquids produce significant amounts of hydrogen and a solid char
product Hydrogen, after separation, can be converted into ammonia using the
industry standard Haber-Bosch process as the two reactions operate at the same
temperature range. The ammonia when combined carbon dioxide (CO2) form
30 ammonium bicarbonate (NH4HCO3), with sulfur dioxide or nitrous oxide and a
platinum and nickel catalyst will form HNO3 and H2SO4. These which combined
with NH3 will form as an intermediate of NH3 HCO3 and (NH2)2CO production
process, to form additional fertilizer species, (NH4)NO3 and (NH4)2SO4. The
invention described here is the simulaneous production of hydrogen, its
35 conversion into ammonia, a porous char, the combination of ammonia, and the
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5 flue gases of combustion or other high percentage sources of carbon dioxide and
the porous char in order to deposition of nitrogen rich compounds in the pote
structure of the carbonaceous material. The invention, provides the use of this
combined porous adsorbent char, enriched with nitrogen compounds, as a slow
release fertilizer/soil amendment with also is a novel inemod for sequestering
10 largo amounts of carton from the atmosphere. Char makes a perfect media for
storing significant quintities of compounds. The combination of nitrogen
compounds created in and on me carbon can produce a slow release nitrogen
fertilizer with many advantages over tradional ammonium nitrate, urea or liquid
ammonia. One of these is that it is less reactive reducing the risk of it being used
15 a compound for making explosives.
Since both the bicarbonate HCO3 of NH4HCO3 and the elementary carbon (C) of
the char materials are nondigestible to soil bacteria, they can be stored in soil and
subsoil earth layers as sequestrated carbons for many years. Therefore, a
20 combined NB4HCO3-char product can not only provide nutrients (such as NH4)
for plant growth, but also has the potential to fully utilize the capacity of soil and
subsoil earth layers to store both inorganic carbon (such as HCO3 ) and organic
elementary carbon (C). Urea (NH2)2CO can also be combined with the char
materials to form a similar product However, the urea production process
25 generally costs some more energy and has less capacity to solidify CO2 than the
CO2-solidifying NH4CO3 production process (U.S. patent No. 6,441,43781).
The char malerials are also mixable with other nitrogen fertilizer species such as
NH4NO3 and (NH4)SC4, but those mixtures would not have the benefits of
providing bicarbonate (HCO3) to soils. Therefore, the combined NH4HCO3-char
30 product is preferred in realizing the -maximal carbon-sequestration potentil in soil
and subsoil earth layers.
Furthermore, the combined NH4HCO3-char product has synergistic benefits.
First, th0e char particles can be used as catalysts (providing more effective
35 nacleation sites) to speed up the formation of solid NH4HCO3 particles in the CO2-
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5 solidifying NH4HCO3 production process, thus enhancing the efficiency of the
CO2-solidifymg technology. Second, the char materials are generally alkaline in
pH because of the presence of certain mineral oxides in the ash product This pH
value of a typical char material is about 9.8. This alkaline material may not be
favorable for use in alkaline soils such as those in the western United States while
10 it is very suitable for use in acidic soils such as those in the estern United States.
However, use of NH4HCO3 can neutralize the alkali of the char materials. When
the char materials are mixed with NH4HCO3 of equal weight, the pH of the
product becomes much better (closer to neutral pH 7). As illustrated in Table 1,
the pH value of the NH4HCO3-char mixture is 7.89, which is significantly lower
15 (better) than that of the char material (pH 9.85). Therefore, this type of
NH4HCO3-char combined fertilizer will be able to be used in alkaline soils, in
addition to pH neutral and acidic soils. This type of NH4HCO3-char fertilizer can
be produced either by the char particle-enhanced NH4HCO3-solidifying NH4HCO3
production process or by physically mixing NH4HCO3 with char materials.
20 Figure 1 presents photograph of the NH4HCO3-char fertilizer samples that were
created by char particle-enhanced NH4-CO2-solidifying NH4HCO3 production
process [marked as "treated char"] and by a physical mixing of NH4HCO3 and
char [marked as "NH4HCO3-char mixture (50%50%W)"]. Depending on the
amount of NH4HCO3 deposited onto the char particles by char particle-enhanced
25 NH3-CO2-solidifying NH4HCO3 production process, the treated char has a pH
value of 8.76 in this particular sample. The pH of the product can be further
improved by deposition moreNH4HCO3 onto the char particles by the process.
When the NH4HCO3-char product is applied into soil, it can generate another
30 synergistic benefit. For example, in the western parts of China and the United
States China where the soils contains significantly higher amount of alkaline earth
minerals and where the soil pH value is generally above 8, when NH4HCO3 is
used alone, its HCO3 can neutralize certain alkaline earth minerals such as
[Ca(OH)]+ and/or Ca++ to form stable carbonated mineral products such as CaCO3
35 that can serve as a permanent sequestration of the carbon. As more and more
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5 nitrate, and micro mineral nutrints such as iron and molybdenum to make more-
nutrient-complete compound fertilizers.
Example 1
We produced 5 different chars from peanut shells, at different temperatures
10 (900°C, 600°C, 500°C, 450°C and 400°C) in a low oxygen environment. In each
case, the samples were brought to the target temperature for 1 minute. The
samples were taken up to temperature and then allowed to cool. Next the materials
were pound and sieved to a particle size less than 30 US mesh and greater than 45
US mesh and prepared 20.0-gram samples. We mixed an aqueous solution of
15 48% NH4NO3 (ammonium nitrate). Each sample was soaked for 5 minutes and
then poured through cone filter paper and allowed to air dry for 24 hours. We then
poured rinses of 100 ml of tap water (pH8) through the cone filter. The pH of each
resulting rinse was measured showing a decreasing pH commensurate with the
leaching rates of each material.
20
There was very little difference between the samples except for the one prepared
at 400°C. After three or four rinses, the materials, which were carbonized at the
higher temperatures, would stabilize at the pH 8 of the rinse material (local tap
water). The 400°C char showed very little ehange and it was only after the 9th
25 rinse that it began 10 drop a bit faster but even after 12 rinses it still had not
stabilized.

19

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5 The work by Asada on bamboo charcoal demonstrated similar impacts on
ammonia adsorption.
Example Two
While the process can apply to many configurations, this example uses S relatively
10 simple production technique. In this case, we used a mechanical fluidized bed
easily adaptable to any gas stream and injected CO2, and hydrated ammonia. A
250g charge of 30-45 mesh (0.4mm - 0.6mm), 400°C char was fed in at regular
intetvals varying from 15-30 minutes. A higher rotor speed increased the
fluidization and suspended the particles until they became too heavy from the
15 deposition of NH4HCO3 to be supported by fluidized gas flows. The longer
durations produced significanfly larger particles. At 10-15 minutes the particles
ranged from l.0mm to 2.0mm and between 20-30 minutes they ranged from 3.0 to
6.00mm. The interior of the particles were then examined under a scanning
election microscope. Internal pore structure showed significant formations of
20 structures of NH4HCO3 at 10-15 minutes. The material produced between 20-30
minutes had completely filled internal pores and cavities.

20

WO 2004/037747 PCT/US2003/033553
5 Global Potential
This chart shows the number of kg of CO2 per million BTUs of each type fuel.
Fossil fuels have a significant carbon cost. Hydrogen used as a fuel with carbon
utilization can remove 112kg of CO2 per GJ of energy used. Current energy use is
10 increasing CO2 by 6.1 Gt/yr (IPCC). Renewable hydrogen with carbon utilization
and CO2 capture can provide energy with a negative carbon component. To
calculate how much negative energy we would need to use at 112kg of CO2
captured and utilized per 1GJ, to equal the world's 6.1 gigaton CO2 annual
surplus, we divide 6.1Gt/112kg to yield 54Bj. That is approximately what is
15 reported at the world current annual bioenergy consumption (55EJ-Hall)

40 The large majority of increases in CO2 will come from economically developing
countries as their burgeoning entrepreneurial populations industrialize. A
sustainable techsnology needs to be able to scale to meet the growng needs of this
large segment of the population. Developing an economical size that offers a
profitable platform may require certain minirmims and it may be that the lower
45 limit of economical production are larger than typical biamass conversion
systems. A 1-2 MW facility could be the lower limit yet there are two factors that
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5 are important to note. The first is that the low relative efficiencies required by
both the hydrogen separation and the ammonia production may allow a smaller
foot print system to be developed using new technologies. Future research efforts
in separations technologies and ammonia catalyst could offer developments that
lead to systems for even very small fanning communities.
10
The second point is that the total hydrogen is approximately three times the
maximam that can be utilized in one facility, so every third facility could be
designed to accept the charcoal that is produced by two standalone energy
systems. This special facility could process all of its hydrogen and the carbon
15 from two other locations and use existing industrial ammonia manufacturing
techniques to create the carbon-fertlizer. If all hydrogen is converted to fertilizer
then there is an opportunity to acquire outside CO2 (34 kg required for each 100
kg biomass processed) and the opportunity to earn revenue from SOx, NOx
removal could provide it with another income stream and help its economics. It
20 would also fit closely inio strategies of developing areas that wish to attract and
support GHG emitting manufacturing.
The energy from a total systems point of view could create a viable pathway to
carbon negative energy as detailed in the IIASA focus on Bioenergy Utilization
25 with CO2 Capture and Sequestration (BECS). The effects shown in the prior
graph (Figure 16) (i.e. providing 112kg of CO2 removal for each GJ of energy
used) could allow major manufacturers to offset their carbon costs. The graph in
Figure 17 shows various materials used in automobile manufacturing and the life
cycle, analysis of carbon emissions per kilogram. The second bar in stripes
30 represents the weight of biomass using this process, which would be required to
offset that carbon cost. The third bar, extending down in the checked pattern,
shows the amount of sequestered carbon that would be created if the process were
used to produce all the energy required for production and the last bar represents
the amount of biomass required to meet the energy needs of producing that
35 amount of the automotive material. In some materials, the amounts needed for
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5 energy production are less that the amounts needed for needed offset. This
illustrates that energy is just one aspect of GHG production related to materials
manufacturing and that metbods for offenttins CO2 release are essential.

10
The opportunity for economically developing areas with biomass is to utilize their
resources to help manufacturers reach carbon-negative status. If the material
leaves a factory with a net carbon negative budget then the behavior of
consumerism becomes an agent of climate mitigation and supports economies in
15 side stepping fossil fuel pathways.
How large could this method be applied and to what areas of the earth could
utilized a concerted effort to reclaim eroded land and increase current farmland
production are areas for furture research. The positive impact of an increased soil
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5 carbon content ultimately leads to increased food and plant yields, further helping
to reduce CO2 buildup. There is very little information on the maximum rates of
utilization, though 10,000 kg/ha of char have been used with very positive results
and researchers have proposed that as little as 2000 kg/ha could prove beneficial
for plant growth. (Glaser,et al. 2002; ICFAC.2002)
10
For a quick test of reasonableness, we saw from above that 1GJ of hydrogen
produced and used will represent 112kg of utilized and stored carbon dioxide.
Therefore, taking the atmospheric rise of 6.1GT and dividing by 112kg/Gj =
54.5EJ. This number fa11s amazingly along the 55EJ estimate of the corrent
15 amount of biomass. that is used for energy in the world today.(Hall et al. 1983)
While the potential reaches many times this for the future utilization of biomass,
this snows that there is a chance that we can be proactive in our approach.
Technical / Economic Overview and Global Impacts
20 A study of the economics of the OENL process for NH4HCO3 production from
fossil fuel scrubbing was conducted by the University of Tennessee ("UT Study")
in 2001. There are also ongoing economic evaluations of renewable hydrogen
production from the US National Renewable Energy Laboratory. Those studies
can provide the outer framework for this preliminary economic estimate. The UT,
25 examined the economics of producing ammonium bicarbonate in the exhaust
stream of fossil fuel combustion. It assumed the use of natural gas to produce
ammonia and the subsequent conversion to ammonium bicarbonate. Since, this
was prior to the use of charcoal inclution, it did not include any economic gains,
which could be attributed to chercoal. Some gains benefit the fossil foel user.
30 These include a single system for removal of CO2, SOx and NOx, no required
drying of the final product and offsettng income from fertilizer sales. Optimally,
fossil fuel users will partner with fertilizer manufacturers to use their existing
market penetration. Fertilizer manufacturing firms, which have been relegated to
the sale of commodity goods, can reinvent their product offerings to include
35 service-based delivery of soil fertility and management of soil carbon content
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5 Utilizing advances in remote and satellite monitoring technologies and a more in
depth local delivery of site specific management techniques, these services will
offer a regional advantages which can. withstand compotition that global
commodity chemicals production cannot.
10 More gains accure to farthurs as these fertilizers can reated soil carbon content,
return trace minerals to degraded lands, increase in cation exchange, water
holding capacity, microbial activity and decrease in nutrient leaching which all
lead to increases in crop yields. Assumptions of these increases and income
derived cannot be made until more detailed yield and cost analysis for the
15 amounts of ECOSS utilized, yields of specific crops on representative sois, type
of irrigation, and other factors essential to determine farm income. The closed
cycle begins with farmers entering into long terrn contracts to supply energy crops
(which can be grown on marginal lands), forestry thinning and other sources of
biomass, which will be required by this soil-food-energy-carbon management
20 valuez chain.These contracts will help establish revenue sources to support
effective land, forest and crop management strategies.
Seeing this form a global perspective, this techique simulates the
interdependence we find in among organic species in nature. Each role is
25 essential and rewards are evolved through market mechanisms. This diversity in
economic gain offers to help restore the growth opportunities to fanning, forestry
and small rural businesses. Instead of a transfer of wealth, this is a grass roots
development of income, which has been literally going up in smoke for the last
two centuries. The development of opportunity and broad based growth in
30 entrepreneurial activity, farm operations and businesses that support them, will
lead to more stable and predictable income for multinationals, medium and small
businesses and lead to an increase in the rural tax base. While this is not a cure all,
it moves the world to more sustainable growth strategies.
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WO 2004/037747 PCT/US2003/033553
5 The economic projections of the UT study were based on a market value of the
end product at $2.63/lb atom of nitrogen based on 1999 prices of nitrogen
fertilizer. Today's prices are significantly higher due to increased natural gas
prices. However, with a target of 20% CO2 removal, the study concluded that a
700 MW facility would be optimally sized for the economical production
10 fertilizer and would yield a after tax ROI of $0.33. The investment required to
meet this level of CO2 capture was calculated to be $229 million. The same
amount of carbon captured with ECOSS, where 88% of the target will be met by
the carbon contained in the char would only require a production unit one-fifh the
size and possibly smaller. Additionally, the system can be much simpler than what
15 was required to convert 100% of hydrogen produced into ammonia. With this
approach, the engineering and construction costs can be significantly reduced.
While economics and scale of ammonia production typically favor larger
installations, Kyoto reduction targets can be met through smaller facilities where
the efficiency is in carbon utilization.
20
The UT study assumed the world's consumption and demand for nitrogen would
became the limiting factor in how much carbon could be captured. The total
market for nitrogen in 1999 was 80.95 million tons, which then converted at the
power plant targeting 20% redactions in CO2, lead to the determination that 337
25 fossil fuel plants of 237 MW each would meet world fertilizer demand. Their
calculations showed that this would reduce the global C output from coal
combustion by 3.15%. The study also assumed the use of natural gas to make the
ammonia. The total stoichiometric calculation for ammonia from natural gas and
the conversion of 8Ib-moles of NH3 into NH4HCO3 which captures 5 Ib moles of
30 CO2. With renewable hydrogen to make ammonia, no fossil fuel based CO2 is
release into the atmosphere and the following is found,
8NH3+8CO2+8H2O>8NH4CO3.
Therefore, renewable hydrogen allows a 1.6 times increase in CO2 captured per lb-
35 mole of NH4HCO3 produced. Utilizing the study above, a switch to renewable
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5 hydrogen would increase carbon capture, 3.15 x 1.6 = 5.04%. However, carbon
closure of biomass energy is not zero but has been calculated (Spath&Mann-1997)
at 95%. A more accurate number would be 5.04 x 95%= 4.79% reduction in C
from worldwide coal combustion if renewable H2 as the source for producing
ammonia and all the world's N requirements are met from NH4HCO3 scrubbed
10 from power plant exhaust.
As slated before, the total C captured in the combined ECOSS material was 12%
from fertilizer and 88% from char. Taking the theoretical number of 4.79% and
equating mat to the 12% portion of ECOSS, would mean that the total carbon
15 capture at 1999 N levels would be increased or leveraged 100 / 12 = 8.3 fold or
reduce total C from coal combustion by -39.9%. This leveraged total should be
seen as a theoretical potential. The factors of increased biomass growth with the
addition of charcoal as found by Mann (2002), Hoshi(2002), Glaser(2002),
Nishio(1999) and Ogawa(1983) show increase biomass growth from 17% to as
20 280% with non-optimized char. The direct utilization of an optimized char plus
slow release nitrogen/nutrients may allow the increase biomass growth targets
organic matter, further increasing C capture (especially if no-till management
practices are adopted). Therefore, another bracket in our assessment of this
25 process is the increase in non-fossil fuel CO2 capture from biomass growth in
addition to the leveraged total.
The ability to slow down the release of ammonia in the soil will allow plants to
increase their uptake of nitrogen. This will lead to a reduction in NO2
30 atmospheric release. This potent greenhouse gas is equivalent to 310x the impact
of CO2. The fertilizer industry releases CO2 during the manufacture of ammonia
from methane.
4N2 +3CH4+6H20>3CO2+ 8NH3
The equation illustrates that for each ton of nitrogen produced, 0-32 tons of C are
35 released, and the 80.95 million tons of nitrogen utilized would represent 26
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WO 2004/037747 PCT/US2003/033553
5 million tuns of C. This is s small a small number in relative tarrna to the amounts
released by combustion of coal (2427 million tons- EIA, 2001)
The economics of hydrogen from biomass has been addressed in the 2001 report
by Spath et al.(2001). Their conclusion was that pyrolytic conversion of biomass
10 offered the best economics due in part to the opportunity for co-product
production and reduced capital costs. However, this assessment was based on
using bio-oil for reforming and acknowledged uncertainty in pricing for co-
products. Their analysis, at a 20% IRR, provided plant gate pricing of hydrogen
from $9.79-$11.41/GJ. In the UT study, hydrogen production equipment
15 represented 23% of the total capital equipment costs and utilized a $4/GJ expense
for methane. This cost represented -50% of total expenses and -45% of before
tax prifits. If we assume that other operational costs remain the same, with the
increased cost of natural gas, the inside plant cost of renewable hydrogen would
no longer be 2.4-2.8 times the costs from mathane, but is approaching 1.6-1.9
20 times. Since net profits were based on market price of nitrogen, then increases in
natural gas prices will change total income in the model as well. For simplicity if
we use $7/GJ, them total income would increase 1.75x and expenses related to
renewable hydrogen would roughly equal -50% of before tax profits, Iatra plant
usage of renewable hydrogen (i.e. no storage or transport expense) becomes
25 significantly more competitive at our current natural gas prices.
Another advantage comes from a review of traditional ammonia processing
methods and how they compare to the ECOSS process. The UT study| notes that
due to unfavorable equilibrium conditions inherent in NH3 conversion, only 20-
30 30% of the hydrogen is converted in a single pass. From the section in this paper
on Production Chemistry Calculations, we determined that the ECOSS process
could only utilize 31.6% of the hydrogen as we were limited by the total amount
of char produced and the target 10% nitrogen Loading. This means that it possible
that a single pass NH3 converter could be used and the expense of separating and
35 recycling unconverted hydrogen is eliminated. The 68.4% hydrogen is then
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5 available for sale or use by the power cornpany/fertilizfer partnership. This shows
that the ECOSS process thus favors the inefficiencies of ammonia production and
reduces costs inherent in trying to achieve high conversion raws of hydrogen
With, incresed biomass utilization for energy and increasing demands for food
10 production, the requirements for fertilization will increase. The restoration and
return of unicronutrints could allow substantive increases in overall soil
amendment applications and the potential needs for nitrogen may not be such a
limiting factor as was considered in the UT study. From a global systems view,
the combination of topsoil restoration, desert reclamation, and file associated
15 increases in biomass growth, could allow the economics to be driven not by C
capture but rather by value creation of increased soil/crop productivity.
This concept of biomass energy production with carbon utilization may open the
door to millions of tons of CO2 being removed from industrial emissions while
20 utilizing captured C to restore valuable soil carbon content. This process
simultaneously produces a zero emissions, fuel that can be used to operate farm
machinery and provide electricity for rural users, agricultural irrigation pumps,
and rural industrial parks. Future developments from the global research
community will produce a range of value added carbon containing co-prodncrs
25 from biomass. With this development and future use of inventions like this, both
the produeers of carbon dioxide and agricultural community have the capability to
become a significant part of the solution to the global rise in greenhouse gas
emissions while building sustainable economic development programs for
agricultural areas in the industrialized and economically developing societies.
30
As illustrated in Fig. 1, a stream, of dry chipped, palletized or cut biomass in sizes
determined by the type of pryolyzer and biomass utilized 100 or carbonaceous
material (renewable is best for carton credit creation) is added to a pyrolysis,
partial gasification, or thermolysis reactor 102. These reactors can be fast
35 pyrolysis (and thus require smaller particles, or slow pyrolysis allowing larger
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5 particlee size but having larger dimensions to effect the same throughput. These
can be downdraft, updraft, cross draft, fluid bed or rotating kilns. These systems
The ability to maintain good temperature control sad control char removal
temperatures are important An isert heat source 103 provides a heat source for
10 bringing the reactor and can help assist in maintaining the operating temperature
well with the exothemic range for the materil. Since each biomass has
differences, there is no set rule, but most well designed pyrolysis units can operate
with little external heat after startup and with limited oxygen present. The char
removal will functions best with an automated gate or star valve which discharges
15 the char at optimal temperature ranges for the desired material. The higher
temperature chars will release nutrients faster than lower temperature chars and
according to the use and application of the fertilizer. However the range to insure
maximum ammonia uptake will be less than 500C and above 350C. When
dealing with any new biomass, adsorption rates should be tested to establish
range of pyrolysis temperatures using a small furnace. Those skilled in the art can
measure adsorption of ammonia on char using a sampling bag (tedlar tag), with a
started concentration of ammonia, char and using an analytical ammonia
detector. As raw materials will vary, these tests can insure a baseline performance
25 in scrubbing as well aa in fertilizer performance. The inert heal source can be one
of many gas, flue gag, nitrogen, carbon dioxide, but gas should be chosen to be
compatible with the hydrogen production system. In the case of hydrogen steam
reforming, heat recovered from the reformer 106 can be used and then the
30 hydrogen production. As the char reaches the optimal temperature is it discharged
into a nonoxidative chamber or transfer unit 108. The char can be allowed to cool
slowly or can be lightly sprayed with water as it is discharged. The char is then
ground 111 to 0.5 –3mm. This will also vary according to the char is then
Chars made from grasses and lightweight biomass will crush easily to and create a
35 larger percentage of smaller materials. These will agglomerate into bigger
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5 particles later, so they can still be used with suitable baghouses. There is evidence
that larger particles work just as effectively as small particles. The reason for this
is unknown.
The hydrogen production system, 106 while shown as steam reforming followed
10 by CO shift, this system can be any unit that produces hydrogen suitable for
continued processing into ammonia. The preferred system for maximum
atmospheric carbon reduction is one which uses biomass or renewably derived
fuels and derives its energy from a carbon neutral or negative source. Gases 109
containing primarily hydrogen and CO2 are separated using pressure swing
15 adsorption 110 or other industry acceptable methods. The carbon dioxide 114 is
greenhouse neutral at this point and can be released or used to replace 115 flue gas
if there is no fossil fuel cased carbon dioxide 123 available. When operated in this
manner the energy derived has an even higher effective carbon negative
accounting. Ammonia production 117 is shown as using the Haber process or
20 other economically and industry accepted methods for ammonia production. At
conditions needed to sequester .75 to 1.5 tons per hectare of carbon and provide
sufficient charcoal to offer substantive plant response, a 10% nitrogen content is
recommended. The resulting balance then points to 60-67% of the hydrogen
produced will be available for sale. This lends to a configuration where 3
25 locations feed one which is the capture and fertilizer production center. The others
produce hydrogen and or energy and charcoal which is sent then to one location
where all of its hydrogen is utilized.
The ammonia produced 118 is then saturated with water by bubbling ammonia
30 through water 119. This reaction produces heat and the water levels need to be
monitored and automatically maintained. The gas phase hydrated amoionia 120 is
then allowed to enter a chamber 121 with the charcoal. This saturation will be
suffciently complete in 3-10 seconds, according to particle size. The
concenirations added to the char will be equal to 1.1-1.5 mole of NH3 per mole of
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5 C02 in the flue gas sought to capture as NH4HCO3 Char 112 is added at the so as
to achieve the desire nitrogen ratio:
Charcoal Weight=(l-(TargetNitrogen% * 79 / 14)) * CspturedCO2Kmoles * 79
10 The amount of percentage SOx and NOx will be significantly lower than the
number of moles of CO2 sought and at these temperatures, the production of
ammonium sulfate and ammonium nitrate will reduce to mandatory emission
levels and will become part of the ECOSS matrix increasing its value.
15 The saturate char 122 is then feed into a system, label here as a conversion
cyclone, 124 where flue gases (with or without fly ash) 123 (at ambient
temperature and pressure) can mix intimately and evenly also where the particles,
once having completed the conversion of the adsorbed NH3 to NH4HCO3 the
particles are separated from particles which have not completed converted all of
20 their NH3. The gases 125 now scrubbed of emissions and most of the fly ash are
sent for final particulate scrubbing. The charcoal fertilizer granules are discharged
126 as they reach the desired density set by the nitrogen percent. Optionally, the
optionally coat 132 the granules with the above nutrient, or plaster, or polymers,
25 or sulfur as known to those skilled in the arts, to give the particles longer and
134
more precise 133 discharge rate, or a less expensive but effect soil amendment
Fig. 2 illustrates the design of a simple conversion cyclone system to demonstrate
30 the features described. Optimized charcoal 136 is gravity feed into a pipe between
two valves 138 that allows the chamber 137 to be closed and a valve permits a gas
stream of hydrated ammonia 135 to enter and saturate the material. The bottom
valve of the two sealing the chamber is then opened allowing the saturated char to
enter the 1.5 meter tall and a 50 cm diameter mechanically power cyclone. The
35 stainless cylinder has a variable speed motor 145 driving a plastic fan/rotor which
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5 keeps the gas and particles held up in suspension. Two thirds of the way down is
a discharge cyclone 142 with rotating gale 141 to control gas flows through the
cyclone. The metered CO2 rich gas stream 140 enters the cyclone, and in practice
would discharge through the bottom where a glass sampling container 146 was
located. A second glass sampling container 143 was located under the discharge
10 cyclone. A gas sampling and discharge port 139 was located at die top of the
system. Plexiglass view ports 147 allowed the suspended particles to he viewed
as they moved down toward the discharge cyclone.
Fig. 3 illustrates conceptual design to remove CO2 emissions in industrial
15 combustion facilities such as a coal-fired power plant by flexible combinations of
the synergic processes as described in this invention: the pyrolysis of biomass and
or carbonaoceous materials and ammonia scrubbing. This CO2-removal technology
produced valuable soil amendment fertilizer products such as NH4HCO3-char that
can be sold and placed into soil and subsoil terrains through intelligent agricultural
20 practice. Therefore, this invention could serve as a potentially profitable carbon-
management technology for the fossil energy industries and contribute
significantly to global carbon sequestration.
Fig. 4 illustrates the expected benefits from use of the invention mat combines the
25 biomass pyrolysis and NH3-C02-solidifying NH4HCO3 -production processes
into a more-powerful technology for carbon management. This invention provides
benefits of carbon sequestration and clean-air protection by convening biomass
and industrial flue-gas CO2 and other emissions into mainly NH4RCO3-char
products. The NH4HCO3-char products can be sold as a fertilizer and be placed
30 into soil and subsoil earth layers as sequestered carbons, where they will also
improve soil properties and enhance green-plant photosynthetic fixation of CO2
from the atmosphere thus increasing biomass productivity and economic benefits.
The pyrolysis of biomass materials and the steam reforminig of me off gases
35 and/or pyrolyris liquids produces significant amounts of hydrogen and a solid char
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5 product Hydrogen, after separation, can be converted into ammonia using the
industry standard Haber-Bosch process as the two reactions operate at the same
temperature range. The ammonia when combined carbon dioxide (CO2) form
ammonium bicarbonate (NH4HCO3), with snifter dioxide or nitrous oxide and a
platinium end nickel catalyat will form HNO3 and H2SO4. These which combined
10 with NH3 will form as an intermediate of NH4 HCO3 and (NH2)2CO production
process, to form additional fertilizer species, (NH4)NO3 and (NH4)2SO3. The
invention described here is the simultaneous production of hydrogen, its
conversion into ammonia, a porous char, the combination of ammonia, and the
flue gases of combustion or other high percentage sources of carbon dioxide and
15. the porous char in order to deposition of nitrogen rich compounds in the pore
structure of the carbonaceous material. The invention provides the use of this
combined porous adsorbent char, entriched with nitrogen compounds, slow
release design coating from plaster, polymer and/or sulfer, for a slow release
fertilizer/soil amendment with which is a novel method for sequestering large
20 amounts of carbon from the atmosphere. Char makes a perfect media for storing
significant quantities of compounds. The combination of nitrogen compounds
created in and on the carbon can produce a slow release nitrogen fertilizer with
many advantages over traditional ammonium nitrate, urea or liquid ammonia.
One of these is, that it is less reactive redusing the risk of it bening used a
25 compound for making exploaivea.
Since both the bicarbonate HCO3 of NH4HCO3 and the elementary carbon (C) of
the char materials are nondigestible to soil bacteria, they can be stored in soil and
subsoil earth layers as sequestrated carbons for many years. Therefore, a
30 combined NH4HCO3 -char product can not only provide nutrients (such as NH4)
for plant growth, but also has the potential to fully utilize the capacity of soil and
subsoil eaitti layers to store both inorganic carbon (such as HCO3 ) and organic
eleinentary carbon (C). Urea (NH2)2CO can also be combined with the char
materials to form a similar product. Howevct, the urea production process
35 generally costs some more energy and has less capacity to solidify CO2 than the
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5 CO2-solidifying NH4HCO3 production process (U.S. Patent No. 6,447,437B1).
The char materials are also mixable with other nitrogen fertilizer species such as
NH4NO3 and (NH4)SO4, bul those mixtures would not have the benefits of
providing bicarbonate (HCO3 ) to soils. Therefore, the combined NH4HCO3-char
product is preferred in realizing the maximal carbon-sequescation potential in soil
10 and subsoil earth layers (Figs. 1 and 2).
Futhermore, the combined NH4HCO3-char product has synergistic benefits.
First, the char particles can be used as catalysta (providing more effective
nucleantion sites) to speed up fee formation of solid NH4HCO3 particles in the CO2-
15 solidifynig NH4HCO3 production process, thus enhancing the efficiency of the
CO2-solidifying technology. Second, the char materials are generally alkaline in
pH because of the presence of certain mineral oxides in the ash product. The pH
value of a typical char material is about 9.8. This alkaline material may not be
favorable for use in alkaline soils such as those in the western United States while
20 it is very suitable for use is acidic soils such as those in the eastern United States.
However, use of NH4HCO3 can neutralize the alkaline of the char materials. When
the char materials are mixed with NH4HCO3 of equal weight, the pH of the
product becomes much better (closer to neutral pH 7). As illustrated in Table 1,
the pH value of the NH4HCO3-char mixture is 7.89, which is significantly lower
25 (better) than that of the chat material (pH 9.85). Therefore, this type of
NH4HCO3-Char combined fertilizer will be able to be used in alkaline soils, in
addition to pH neutral and acidic soils. This type of NH4HCO3-char fertilizer can
be produced either by the char particle-enhanced NH3CO2Solidifying NH4HCO3
production, process (Fig. 3) or by physically mixing NH4HCO3 with char
30 materials. Figure 4 presents photograph of the NH4HCO3-char fertilizer samples
that were created hy char particle-enhanced NH3-CO2-solidifying NH4HCO3
production process [marked as "treated char'] and by a physical mixing of
NH4HCO3 and char [marked as "NH4HCO3-char mixture (50%/50%W)"].
Depending on the amount of NH4HCO3 deposited onto the char particles by char
35 particle-enhanced NH4HCO3-solidifying NH4HCO3 production process, the treated
35

WO 2004/037747 PCT/US2003/033553
5 char has a pH value of 8.75 in this particular sample. The pH of the product can
be further improved by deposition more NH4HCO3 onto the char particles by the
process.
When the NH4HCO3-char product is applied into soil, it can generate yet another
10 synergistic benefit. For example, in the western parts of China, and the United
States where the soils contains significantly higher amount of alkaline earth
minerals and where the soil pH value is generally above 8, when NH4HCO3 is
used alone, its HCO3 can neutralize certain alkaline earth mineralB such as
[Ca(QH)]4 and/or Ca++ to form stable carbonated mineraldi products such as CaCO3
15 that can serve as a permanent scquestrarjoa of the carborn As more and more
carbonated earth mineral products are formed when NH4HCO3 is used repeatedly
as fertilizer for tens of years, some of the soils could gradually become hardeued.
This type of "soil hardening' has bee noticed in some of soils in the western part
of China where NH4HCO3 has been used as a fertilizer for over 30 years. It is also
20 known that this type of soil "hardening" problem could be overcome by
application of organic manure including humus. Char is another ideal organic
material that can overcome the "soil hardening" problem because of its soft,
porous, and absorbent properties. Therefore, co-use of NH4HCO3 and char
materials together can allow continued formation of carbonated mineral products
25 such as CaCO3 and/or MgCO3 to sequester maximal amount of carbons into the
soil and subsoil terrains while still maintaining good soil properties for plant
growth.
Another embodiment of the invention can be to also add other nutrients to the
30 carbon. The material itself contains trace minerals needed for plant growth.
Adding phosphorus, calcium and magnesium can augment performance and create
a slow release micro nutrient delivery system.
Another embodiment of the invention can include the processing of the carbon to
35 produce very large pore structures. The material can be used as an agent to
36

WO 2004/037747 PCT/US2003/033553
5 capture watershed runoff of pesticides, and herbicides. By edding a deposition of
various materials (example: gaseous iron oxide), the material can be uaed to
capture such compounds as phosphorus from animal feedlots.
Another embodiment for the invention is to use standard Industrial processes well
10 known to those skilled in the arts, to use the hydrogen produced, combined with
air and other free nitrogen present in the production process to create the ammonia
that will be used as the nitrogen source material.
Based on market demands, these products can be further combined with other
15 fertilizer species such as potassium, magnesium, ammonium sulfate, ammonium
nitrate, and micro mineral nutrients such as iron molybdenum to make more-
nutrient-complete compoand fertilizers.
To assist an appreciation by those of skill of The art for the scope of exemplary
20 embodiment of the present invention, the Applicants have identified within the
body of this technical specification certain publications relevant to the technical
field of the present invention. Applicants have used an identifier of the format
"Author(s)/Publication year" to provide a readily recognizable identifier for these
references. A complete listing of the identified references is provided below in
25 Table 3.
Table 3
Refrence
30 Fakoussa RM, Hefrichter M (1999) Biotechnology and microbiology of coal
degradation. Appl Microbiol Biotechnol 52:25-40
Slineour EA (1966) Oxidation of graphitic carbon in certain soils.
Science 151:991-992
35
37

WO 2004/037747 PCT/US2003/033553
5 Lal, R. Kimble, J.M., Follat, R.S. and Stewart, B.A. 1998a. Soil Processes and
the Carbon Cycle. CRC Press LLC, MA.USA. pp 609.
Hao. Y. L, Lal, R., Imarralde, R. C, Rittchi, J. C. Owens, L.B.and Hothem, D.
L. 2001. Historic assessment of agricultural impacts on soil raid soil organic
10 carbon erosion in an Olno -watershed. Soil Science 166:116-126.
Vitousek P.M. 1991. Can planted forests counteract increasing atmospheric
carbon dioxide? Journal of Environmental Quality 20:348-354.
15 Hanmaier L, Zech W (1995) Black carbon - possible source of highly aromatic
component of soil humic acids. Org Geo-chem 23:191-196
Glaser B, Haumaier L, Guggenberger G, Zech W (1998) Black carbon in soils: the
use of benzene carboxylic acids as specific markers. Org Geochem 29:811-819
20
Nishio M, Okarno S 1991 Strimulation of the growth of alfala and infection of roots with
indigenous versicular-arbuscular moycorrbizal fimgi by the application of charcoal. Bull.
Natl.Grasel. Res. Inst. 45, 61-71.
25 Asada, T.elal, Science of Bamboo Charcoal: Study on Carbonizing Temperature
of Bamboo Charcoal and Removal Capability of Harmful Gases, Journal of
Health Science 2002, 48(6) 473-479
Maturi, T. et al Preparation and Analysis of Carboinization Products from Sgi,
30 Cryptonra japonica D. Don) Wood. Nippon Kagakukaishi 2000; 1:53-61
(Japanese)
Nishunaya, K. el at, Analysis of Chemical Structure of Wood Cfrcoal by X-ray
photoelectron spectroscopy 1998, Journal of Wood Science,44, 56-61
38

WO 2004/037747 PCT/US2003/033553
5 Day, D, Activities web report of a 100 hour-production run of hydrogen from
biomass in Biakely, GA, USA; 2002 http://ww.eprida.com/hydrol
Gavin, D. G., Brubaker, L.B., and Lertzman, K.P. Holocene history of a
coastal temperate rain forest based on soil charcoal radiocarbon dates. In press
10 for Ecology: 2003
IPCC "Climate change 2001: the scientific basis". Intergovernmental Panel on
climate Change, 2001 (see also at
http://www.grida.nolcltmalehpcc tariwz/Index.htnl.)
15
Walsh, Marie et al, Biomass Feedstock Availability hi the United States: 1999
State Level Analysis, 1999 http://bioenergy.ornl.gov/resovrcedata/Index/htnl
20 Y. Yehoab,et al, Hydrogen from Siomoss for Urban Transportation,
Proceedings of the 2002 USDOE Hydrogen Program Review; 2002
Day, Danny; Robert Evans, James Lee U.S. Patent Application, 2002
25 Yeherton, F, Tie me of activated carbon to inactivate agricultural chemical
spills. North Carolina Cooperative Extension Service, March, 1996,
http://ww.hae.rcsu.ed\bac/programs/extention/publication/ag442.htnl
Lee, J.W.; Li, g., A Novel Strategy for CO2 Sequestration and Clean Air
30 Protection, Proceedings of First National Conference on Carbon Sequestration,
Washington, DC, May 1417, 2001.
http://www. netl.doe.gov/publications/proccedings/01/carbon-sey/p12.pdf
39

WO 2004/037747 PCT/US2003/033553
5 Lee, J. W.;Lt, R, Method for Reducing CO2, CO, NOx, and SOx Emissions,
1998 Oak Ridge National Laboratory Invention Disclosure, ERID 0631; 2002
U.S. Patent No. US 6,447.437 BI.
Lee, J. W., and R Li. Integration of Caal-Fired Energy Systems with CO2
10 Sequentration though NH4HCO3 Production, Energy Comrversion Management
2003: 44:1535-1546.
Schleppt P., Bucher-Wallin I, Siegwoif R.. Sourer M., Muller N. Rucher J.B.
Simulation of increased nitrogen deposition to a montane forest ecasysten:
15 partitioning of the added N; Water Air Soil Pollution 1999; 116:129-134
Gloser B., Lehmann J., Zech W. Ameliorating physical and chemical properties
of highly weathered soils in the tropics with charcoal - a review. Biology and
Fertility of Soils 2002; 35:219-230.
20
Wardle, D.A.et al., The charcoal effect in Boreal forest: mechanisms and
ecological consequences. Oecologia 1998; Volume 115 Issue 3:419-426
International Cooperation in Agriculture and Forestry, Application of Rice Hull
25 Char, Taiwan, 2002; Leaflet 03-01
http://www. agnet. org/library/article/pa2001004. html
Day, D., Activities web report of a 100 hour production run of hydrogen from
biomass in Blakely. GA, USA: 1002: http://www.eprida.com/hydro/
30
Pietikaiaen, Jama, Soil microbes in boreal forest homans after fire (thesis 1999)
http://ethesis. helsinki.fuliulkailsatfmaa/mekol/vk/pielikainen/soilmier,html
40

WO 2004/037747 PCT/US2003/033553
5 Runkel, R.O.H and Wilke, K, Chemical composition and properties of wood
heated at 140C to 200C in a closed system without free space. Part II Hotz als
Roh and Wertstoff 1951:9:260-270 (Ger.)
Godsy, E. Michael, Impact of Human Activity on Groundwater Dynamics
10 (Proceedings of a symposium held during the Sixth IAHS Scientific Assembly at
Maastricht. The Netherlands, July 2001). IAHS Publication no. 269, 2001, pp.
303-309.
Li, E. Hagpman, C. Tsouris, and J. W. Lee, "Removal of carbon dioxide from
15 flue gas by ammonia carbonation in the gas phase," Energy & Fuels 2003: 17:
69-71.
Asada, T. el al Science of Bamboo Charcoal: Study of Carbonizing Temperature
of Bamboo Charcoal and Removal Capability of Harmful Gases, Journal of
20 Health Science 2002:48(6);413-479.
Gour, S Reed, T.B., Thermal Data for Natural and Synthetic Fuels, New York:
Morcal Dekker, 1998: 200-244.
25 Czernik, Srefan, (2003) Personal correspondence and emails. National
Renewable energy Laboratory, March
Oberstisner, et al., Biomass energy, Carbon Removal and Permanent
Sequestration-A 'Real Option' for Managing Climate Risk, Report no. IR-02-
30 042, Laxenburg, Austria. International Institute for Applied Systems Analysis,
2002.
Glaser B., Lehmonn J., Zech W., Ameliorating physical and chemical properties
of highly weathered soils in the tropics with charcoal - a review. Biology and
35 Fertility of Soils 2002; 35; 219-230.
41
WO 2004/037747 PCT/US2003/033553
5
International Cooperation in Agriculture and Forestry, Application of Rice Hull
Char, Taiwan, 2002; Leaflet 03-01
http://www.agnet,or/libray/article/pt2001004.html
10 Hall, D.O., F,Rossillo-Catte, R.H. Williams and J. Woods: Biomass for energy:
Supply prospects. In: Renewable Energy: Sources for Fuel and Electricity
[Johansson, T.B., H. Kelly, A.K.N. Reddy, and R.H Williams (eds.)]. Island Press,
Washington, D.C., 1993:103-652
15 Alhon.el al. CO2 Sequestration iron Coal Fired Power Plant Flue Gas. (a pre-
patent confidential design project study for co-author Jomes Lee), University of
Tennessee, 2000 (see also
http://www.eprida.cont/hydro/ecoss/background/CO2seqeconomics.pdf)
20 The Fertilizer Institute. World Fertilizer Use, 2003,
http://www.tft.org/Statisacs/worldfertusee.asp
Monn, M. Life. Cycle Assesment of Biomass Gasification Combined-Cycle
System, National Rentable Energy Laboratory Rsport 1997, United States
25
Mann. C, The Real Dirt an Rainforest Fertility, Science 2002; 297:920-923
Hoshi, T. (web report of growth studies with charcoal ammedments on green tea
yields) 2002 http.//www.fb.u-tokai.ac.jp/WWW/hoshi/cha
30
Glaser, et al, Potential of Pyrolyzed Organic Matter in Soil Amelioration, 12th
ISCO Conference, Chine, 2002; 3:421
Nishio, M: Microblal Fertilizers in Japan, Bulletin by National Institute of Agro-
35 Environmental Sciences, Japan, 1999
42

WO 2004/037747 PCT/US2003/033553
5
Ogawa. M., Effect of charcoal on the root nodule and VA mycorrhizal formation
of soybean Proceedings of the Third Inter-national Mycology Congress. Tokyo,
Ja-pan. 1983:578
10 World Carbon Dioxide Emissions from the Consumption of Coal, 1992-2002
http://www. eta. doe.gov/emeu/lea/tabtek4.html
Mosier, et.al, Closing the Global N2O budget: Nitrous Oxide Emissions through
the Agricultural Nitrogen Cycle, Nutrient Cycling and in Agro Ecosystems 1998,
15 52.223-245
Kaiser el al. Nitrous Oxide Release from Arable Soil: Importance of N
Fertilization, Crops and Temporal Variation; Soil Biological Biochemistry 1998,
Germany;30, no 12:1553-1563
Spath, et al. Update of'Hydrogen from Biomass -Determination of the Delivered
Cost of Hydrogen, National Renewable Energy Laboratory, Milestone Report for
the US. Department of Energy's Hydrogen Program 2001. United States
25 Zackrisson, O. 1977. Influence of forest fires on the North Swedish boreal forest.
Oikos 29:22-32.
De Loat, J., Bouanga. F. &Dore,M. 1985. Influence of microbiological activity
in granular activated carbon filters on the removal of organic compounds. The
30 Scieace of the Total Environment 47:115-120.
Kim, D.-J.. Myalara, T. & Naike, T. 1997. Effect of C/N ratio an the
bioregeneration of biological activated carbon. Water Science and Technology
36:239-249.
35 References
43

WO 2004/037747 PCT/US2003/033553
5
Fakoussa RM, Hofrichler M (1999) Biotechnology and microbiology of coal
degradation. Appl Microbiol Biotechnol 52:25-40
Shneour EA (1966) Oxidation of graphitic carbon in certain soils.
10 Science 151:991-992
Lal. R., Kimble, J.M, Fellett. R.F. and Stewort, B.A. 1998a. Soil Processes and
the Carbon Cycle. CSC Press LLC, MA USA.pp 609.
15 Hao, Y.L., Lal, R., Izaurralde, R. C, Ritchel, J. C, Owens. L. B. and Hothem, D.
L. 2001. Historic assessment of agricultural impacts on soil and soil organic
carbon erosion in an Ohlo watershed. Soil Science 166:116-126.
Vitousek P.M. 1991. Can planted forests counteract increasing atmospheric
20 carbon dioxide? Journal of Environmental Quality 20: 348-354.
Haumater L, Zech W (1995) Black carbon -possible source of highly aromatic
components of soil humic acids. Org Geo-chem 23:191-196
25 Glaser B,Haumaier L,Guggenberger G, Zed, W(1998) Black carbon in soils:
the use of benzencearbocylic acids as specific markers. Org Geochem 29:811-819
Nishio M, Okano S 1992 Stimulation of the growth of alfalfa and infection of roots
with indigenous vesictdar-arbuscular mycorrhizal fungi by the application of
30 charcoal. Bull, Nall. Grassl. Res. Inst. 45, 61-71.
Asada, T. et al, Science of Bamboo Charcoal: Study on Carbonising Temperature
of Bamboo Charcoal and Removal Capability of Harmful Cases, Journal of
Health Science 2002, 48(6) 473-479
35
44

WO 2004/037747 PCT/US2003/033553
5 Matsui,T.et al Peparation and Analysis of Carbonization Products from Sgl,
Cryplomra japonica D. Don) Wood. Nippon Kagakukaisht 2000; 1:53-61
(Japanese)
Niskbnaya, K et al., Analysis of Chemical Structure of Wood Cjrcoal by X-ray
10 photoelectron spectroscopy 1998. Journal of Wood Science,44, 56-61
Day, D., Activities web report of a 100 hour production non of hydrogen from
biomass in Blakely.GA, USA; 2002 http://ww.eprida.com/hydro/
Gavin, D.G., Brubaker, L.B., and Lertzman. K.P. Holocene fire history of a
15 coastal temperate rain forest based on soil charcoal radiocarbon dates. In press
for Ecology: 2003
IPCC, "Climate change 2001: the scientific basis", Intergovernmental Panel on
Climate Change. 2001 (see also at
20 http://www,grida.no/climate/ipcc_tar/wgl/index.htm.)
Walsh. Marie et al., Biomass Feedstock Availability in the United States: 1999
Stale Level Analysis,1999 http://bioenergy.ornl.gov/resourcedata/index.html
25 Y. Yeboah,el at., Hydrogen from Biomoss for Urban Transportation,
Proceedings of the 2002 US DOE Hydrogen Program Review; 2002
Day, Danny; Robert Evans, James Lee U.S. Patent Application, 2002
30 Yelverton, F. The use of activated carbon to inactivate agricultural chemical
spills. North Carolina Cooperative Extension Service, March. 1996,
http://www. bae.ncsu. edu/bae/propgrams/extension!publication/wgwm/ag442.html
45

WO 2004/037747 PCT/US2003/033553
5 Lee, J. W.; Li, R. A Novel Strategy for C02 Sequestration and Clean Air
Protection, Proceedings of First National Conference an Carbon Sequestration,
Washington, DC. May 1417, 2001.
http://www.netl.doe,gov/publications/proceedings/01/carban seq/pl2.pdf
10 Lee, J. W.; Li. S, Method for Reducing CO2, CO, NOx, and SOx Emissions,
1998 Oak Ridge National Laboratory Invention Disclosure, FRID 0631; 2002
U.S. Patent No. US 6,447.437 B1.
Lee, J. W,. and R. Li. Integration of Coal-Fired Energy Systems with CO2
15 Sequestration through NH4HCO3 Production, Energy Conversion Management
2003; 44:1535-1546.
Schleppi P., Bucher-Wallhi I, Stegwatf R., Sourer M., Muller N. & Bucher J.R,
Simulation of increased nitrogen deposition to a montane forest ecosystem:
20 partitioning of the added N; Water Air Soil Pollution 1999; 116: 129-134
Glaser-B, Lehmann J., Zech W. Ameliorating physical and chemical properties
of highly weathered soils in the tropics with charcoal —a review. Biology and
Fertility of Soils 2002; 35:219-230.
25
Wardle, D. A. et al., The charcoal effect in Boreal forest: mechanisms and
ecological consequences. Oecologia 1998; Volume 115 Issue 3: 419-426
International Cooperation in Agriculture and Forestry. Application of Rice Hull
30 Char, Taiwan, 2002; Leaflet 03-01
http://www.agnet.org/library/article/pt2001 004. html
Day, D., Activities web report of a 100 hour production run of hydrogen from
biomass in Blakely, GA, USA; 2002: http://www.eprlda.can/hydrol
35
46

WO 2004/037747 PCT/US2003/033553
5 Pietkalaen, Jama, Soil microbes in boreal forest humus after fire (thesis 1999)
http://ethesis.helsinki.fi/fulkainisul/mekol/mekol/vk/pietiltain/soilmier.html
Runkel, R.O.H and Wilke, K, Chemical composition and properties of wood
heated at 140C to 200C in a closed system without free space. Part II Holz als
10 Roh and Werkstoff 1951; 9:260-270 (Ger.)
Godsy, E. Michael, Impact of Human Activity on Groundwater Dynamics
(Proceedings of a symposium held during the Sixth IAHS Scientific Assembly at
Maastricht. The Netherlands, July 2001). IAHS Publication no. 269, 2001, pp.
15 303-309.
Li, E. Hagaman, C. Tsouris, and J. W. Lee, "Removal of carbon dioxide from
flue gas by ammonia carbornation in the gas phase," Energy & Fuels 2003;17:
69-74.
20
Asada, T. et al, Science of Bamboo Charcoal: Study of Carbonizing Temperature
of Bamboo Charcoal and Removal Capability of Harmful Gases, Journal of
Health Science 2002; 48(6):473-479
25 Gour, S Rsed, T.B., Thermal Data for Natural and Synithetic Fuels. New York;
Marcel Dekker, 1998:200-244
Czernik, Stefan, (2003) Personal correspondence and emails, National
Renewable Energy Laboratory. March
30
Oberstiener, et al., Biomass Energy, Carbon Removal and Permanent
Sequestration - A Real Option far Managing Climate Risk, Report no. IR-02-
042, laxenhurg, Austria International Institute for Applied Systems Analysis,
2002.
35
47

WO 2004/037747 PCT/US2003/033553
5 Glaser B., Lehman J., Zech W., Ameliorating physical and chemical properties
of highly -weathered soils in the tropics wtlh charcoal-a review. Biology and
Fertility of Soils 2002:35; 219-230.
International Cooperation in Agriculture and Forestry, Applicatian of Rice Hull
10 har, Tatwan, 2002; Leaflet 03-01
ttp://www.agnet.org/library/article/pt2001004.html
all, D.O., F. Rossillo-Catte, R.H. Williams and J. Woods,: Biomass for energy:
upply prospects. In: Renewable Energy; Sources for Fuel and Electricity
15 Johansson, T.B., H. Kelly, A.K.M. Reddy, and R.H, williams (eds.)]. Island Press,
ashington, D.C, 1993:593-652
thon, et al., CO2 Sequestration from Coal Fired Power Plent Flue Gas, (a pre-
atent confidential design project study for co-author James Lee), University of
20 ennessee, 2000 (see also
ttp://www. eprida. cam/hydro/ecoss/backgroundCO2seqeconomics.pdf
he Fertilizer Institute, World Fertilizer Use, 2003,
ttp://www. tfi.Org/Statistic/woridfertuse. asp
25
onn, M., Life. Cycle Assessment of a Biomoss Gastification Combined-Cycle
ystem, National Renewable Energy Laboratory Report 1997, United States
Mann, C, The Real Dirt on Rainforest Fertility, Science 2002; 297.920-923
30
Hoshis, T. (web report of growth studies with charcoal amendments on green tea
yields) 2002 http://www/fb.u-tokai.ae.jp/WWW/hoshis/cha
Gloser, et.al. Potential of Pyrolyzed Organic Matter in Soil Amelioration, 12th
35 ISCO Conference, China, 2002; 3:421
48

International Appln. No. PCT/US2003/033553
Claims:
1. A process for me preparation of a solid carbon charcoal residue comprising
pyrolysing a biomass or other carbonaceous material at a temperature between
350°C to 500°C to produce a pyrolytic gas comprising volatile organic compounds
and a solid carbon charcoal residue; and
contacting all or a portion of the solid carbon charcoal residue, ammonia, and
water with an off-gas stream of a combustion or other process, wherein the gas stream
comprises carbon dioxide, sulfur dioxide or nitross oxide, to reduce the discharge of
carbon dioxide, sulfur dioxide or nitrious oxide into the atmosphere.
2. A process for the preparation of a solid carbon charcoal residue comprising:
pyrolyzing a biomass or other carbonaceous material at a temperature range of
between 350°C to 500°C for no more than 2 minutes to maximize the formation of
surface acid groups and preferential adsorption of a base that is optionally ammonia.
3. The process as in Claim 1 where the temperature of the solid carbon charcoal residue
exceeds 500°C and where the temperature remains above 600°C for greater than 10
minutes to minimize the production of surface acids groups.
4. The process as in Claims 1, 2 or 3 wherein the residue is further processed under
various conditions, including but not limited to pressure, mechanical actions, heat,
steam, oxygen, acid, carbon dioxide, addition of fertilizer components, which are
optionally potassium, magnesium, ammonium sulfate, ammonium nitrate, or micro
mineral nutrients including iron molybdenum minerals, to optimize the residue for
specific applications as an adsorbent and carrier of other materials.
5. The process as in Claim 1, wherein the gas is further processed to extract a purified
hydrogen stream, using ceramic membranes, steam reforming or catalytic reforming.
51
AMENDED UNDER PCT ARTICLE 34
REPLACEMENT SHEET

International Appln.No.PCT/US2003/033553
6. The process as in Claim 5, further comprising separating unpurified hydrogen from
carbon dioxide, nitrogen or other parasitic gases.
7. The process in avoidance with Claims 1,5 or 6, futher comprising combining the
hydrogen stream with nitrogen to produce ammonia or ammonium nitrate or other
nitrogen compounds.
8. The process in accordance with Claims 1,2,3 or 4, wherein all or a portion of the
solid carbon charcoal residue, ammonia, and water are injected or brought into
intirnate cabon charcoal with an off-gass stream of a combustion or other process where such
gas stream has a concentration of sulfur dioxide or nitrous oxide to reduce the
discharge of these materials into the atmosphere.
9. A process for the preparation of a solid carbon charcoal residue comprising:
pyrolyzing a biomass or other carbonaceous material at a temperature between
350°C to 500°C to produce a pyrorytic gas comprising volatile organic compounds
and a solid carbon charcoal residue; and
contacting all or a portion of the solid carbon charcoal residue, ammonia, and
water with carbon dioxide.
10. The process in accordance with Claim 1 or 8, where the charcoal residue and
ammonia, water and off gases we held in intimate contact for at least 5 seconds.
11. The process as in Claim 1, 8, 9 or 10 wherein a chemical reaction occurs to allow
ammonium bicarbonate (NH4HCO3) to be formed in the charcoal pores and onto its
surface to produce NH4HCO3- charcoal fertilizers.
52
AMENDED UNDER PCT ARTICLE 34
REPLACEMENT SHEET

International Appln. No. PCT/US2003/O33553
12. The process as in Claim 1 or 8 wherein a chemical reaction further occurs 10 allow the
formation of ammonium salts of nitrogen oxides and sulfur dioxide to be formed in
contact with NH4HCO3-charcoal fertilizers.
13. A solid carbon charcoal residue comprising a slow release sequestering soil
amendment fertilizer combined with materials used by plant growth deposited inside
the internal pore structures of the carbon residue in the form of a solid powder and or
granular material suitable for large scale agricultural applications.
14. A process in accordance with Claims 1,2,3,4, 5, 6, 7, 8, 9,10,11, or 12 where
compounds beneficial for plant growth are adsorbed onto the internal pore structure of
the carbon charcoal residue to form a material which provides a slow release of the
compounds.
15. A process in accordance -with Claim 14, wherein a coating is used to control the rate
of release of the compounds, and wherein the coating is optionally selected from the
group consisting of gypsum, plaster, sulfur, or polymers which can dissolve or create
a permeable layer when placed in the soil.
16. The use of a material made by the process of Claims 1 through 11 or 14-15 as a soil
amendment and fertilizer.
17. A solid carbon residue produced by a process of claims 1-11 or 14-15.
53
AMENDED UNDER PCT ARTICLE 34
REPLACEMENT SHEET

This invention relates a series of steps to provide an economical production of a carbon based
fertilizer and soil amendment made during the capture of greenhouse gases from the
combustion of fossil and nan fossil fuels. The invention uses biomass and other carbonaceous
sources through pyrolytic conversion to gases and charcoal to allow for the further
production of co-products, such as hydrogen and ammonia. The invention also relates to the
combination of hydrated ammonia, combustion flue gas exhaust, and charcoal, provide for
the conversion of the charcoal into a valued added soil amendment to return essential trace
minerals and plant nutrients to the soil. The ability to produce a large volume carbon co-
product while removing mandated emissions and producing renewable based hydrogen
provides an economic gain to a large number small and large businesses and increase the
chance of achieving significant reductions in greenhouse gas emissions.

Documents:


Patent Number 216845
Indian Patent Application Number 00883/KOLNP/2005
PG Journal Number 12/2008
Publication Date 21-Mar-2008
Grant Date 19-Mar-2008
Date of Filing 13-May-2005
Name of Patentee DAY DANNY MARSHAL
Applicant Address 4523 RUNNEMEDE ROAD, ATLANTA, GEORGIA 30327, U.S.A
Inventors:
# Inventor's Name Inventor's Address
1 UT-BATTELLE, LLC., 111- B UNION VALLEY ROAD P.O. BOX 2008 OAK RIDGE, TENNESSEE 37831-6498 USA.
2 LEE JAMES WEIFU 1123 MORTONS MEADOW ROAD, KNOXVILLE, TN 37932, U.S.A
PCT International Classification Number C05D
PCT International Application Number PCT/US2003/033553
PCT International Filing date 2003-10-22
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 60/420,766 2002-10-22 U.S.A.