Title of Invention

A PROCESS FOR HYDROGENATING A LUBRICANT HYDROCARBON TO PRODUCE A FOOD GRADE WHITE OIL

Abstract

hydrogenation process far the production of a food grad« white oil uses a catalyst which is based on an ultra- large pixel crystalline material. The crystalline material has pores of at least 13 A diameter arranged in a uniform manner and exhibits unusually’ large sorption capacity demonstrated its busman adsorption capacity of greater than about 15 grams benzene/100 grams (50 tore and 25), A preferred form of the catalyst has a hexagonal structure which exhibits a hexagonal electron diffraction pattern that can be indexed with a value greater than about 18 A. The hydrogenation catalysts based oaths materials are capable of reducing the instauration in lubricants to a low level to produce a food grade white oil, employing less sevexeconditions than catalysts of the prior art, Price: THWTY RUPCES ' hydrogenation process far the production of a food grad« white oil uses a catalyst which is based on an ultra- large pixel crystalline material. The crystalline material has pores of at least 13 A diameter arranged in a uniform manner and exhibits unusually’ large sorption capacity demonstrated its busman adsorption capacity of greater than about 15 grams benzene/100 grams (50 tore and 25), A preferred form of the catalyst has a hexagonal structure which exhibits a hexagonal electron diffraction pattern that can be indexed with a value greater than about 18 A. The hydrogenation catalysts based oaths materials are capable of reducing the instauration in lubricants to a low level to produce a food grade white oil, employing less sevexeconditions than catalysts of the prior art, Price: THWTY RUPCES A hydrogenation process for the production of a food grade white oil uses a catalyst which is based on an ultra- large pore crystalline material. The crystalline material has pores of at least 13 A diameter arranged in a uniform manner and exhibits unusually large sorption capacity demonstrate~ by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams (50 torr and 25°C), A preferred form of the catalyst has a hexagonal structure which exhibits a hexagonal electron diffraction pattern that can be indexed with a d100 value greater than about 18 A. The hydrogenation catalysts based on/these materials are capable of reducing the unsaturation in lubricants to a low level to produce a food grade white oil, employing less severe conditions than catalysts of the prior art.

Full Text

HYDROGENATION PROCESS This invention relates to a process for hydrogenating lubricant oils to produce food grade white oils. There is a significant commercial demand for oils known as food grade mineral oils, or white oils. In addition to food preparation, they are also used in the manufacture of paper and textiles- Such oils also have medicinal uses. These oils are referred to as "white", but they’re actually colorless or very light in color. conditions. There is little difference, however, between the aromatics content of the oil produced using Pd/M41S at 15270 kPa (2200 psig) and the aromatics content of the oil produced using Pd/M41S at 10445 (1500 psig). Lower pressures are therefore preferred. Figure 2 presents a graphical comparison of the catalysts and conditions. Case III In Case III, the temperature was increased slightly and the pressure also increased in the run involving Pt/Al_0 . These conditions were more severe than those employed in the case of the nickel catalyst or Pd-M41S, yet the oil produced employing Pt/Al 0 contains more aromatics than the oil produced using either of the other catalysts. Facture 3 illustrate the relative effects of teunjetaLui t^ variation fir the three catalysts involved. WE CLAIM: 1. A process for hydrogenating a lubricant hydrocarbon to produce a food grade white oil, said process comprising the steps of contacting the lubricant hydrocarbon in the presence of hydrogen with a hydrogenation catalyst containing a metal hydrogenation catalyst, such as herein described, on a support at a pressure of 3550 to 20800 spa (500 to 3000 psig), a temperature from 120 to 3700 (250 to TOO, and a space velocity from 0.1 to 2.0 LHSV, the said support comprising an inorganic, non-layered, porous, crystalline phase material, such as herein described, having pores with diameters of at least about 13A and exhibiting, after calcinations, an x-ray diffraction pattern with at least one d-spacing greater than about 1SA with a relative intensity of 100; and recovering the food grade white oil in a known manner. 2. The process as claimed in claim 1 wherein the crystalline phase material of the hydrogenation catalyst has, after calcination, a hexagonal arrangement of uniformly sized pores with diameters of at least 13A and which has, after calcination, a hexagonal electron diffraction pattern that can be indexed with a duo value greater than about 1SA. 3. The process as claimed in claim 1 or claim 2 wherein the crystalline phase material has a benzene adsorption capacity of greater than about 15 grams benzene per 100 grams at 50 tore and 25°C. 4. The process as claimed in any one of the preceding claims wherein the crystalline phase material has a composition expressed as follows : wherein M is one or more ions; n is the charge of the composition excluding M expressed as oxides; q is the weighted molar average valence of M; n/q is the number of moles or mole fraction of M; W is one or more divalent elements; X is one or more trivalent elements; Y is one or more tetravalent elements; Z is one or more heptavalent elements; a, b, c and d are mole fractions of W, X, Y, Z, respectively; h is a number of from 1 to2.5; and(a+b+c+d) = \. 5. The process as claimed in claim 4 wherein W comprises a divalent first row transition metal or magnesium; X comprises aluminum, boron, gallium or iron; Y comprises silicon or germanium; and Z comprises phosphorus. 6. The process as claimed in claim 4 wherein a and d are 0 and h = 2. 7. The process as claimed in claim 6 wherein X comprises aluminum, and Y comprises silicon. 8. The process as claimed in any one of the preceding claims wherein the catalyst comprises at least one metal of Groups VIA, Villa or VIIIA of the Periodic Table. 9. A process for hydrogenating a lubricant hydrocarbon to produce a food grade white oil, substantially as herein described with reference to the accompanying drawings.

Documents:

63-mas-95-abstract.pdf

63-mas-95-claims.pdf

63-mas-95-correspondence-others.pdf

63-mas-95-correspondence-po.pdf

63-mas-95-description-complete.pdf

63-mas-95-drawings.pdf

63-mas-95-form-1.pdf

63-mas-95-form-26.pdf

63-mas-95-form-4.pdf