Title of Invention

PROCESS OF PRODUCING PROPYLENE FROM METHANOL

Abstract

TITLE: PROCESS OF PRODUCING PROPYLENE FROM METHANOL. A PROCESS FOR PRODUCING PROPYLENE FROM METHANOL, WHEREIN METHANOL VAPOR IS REACTED ON A FIRST CATALYST TO OBTAIN A FIRST VAPOR MIXTURE CONTAINING DIMETHYL ETHER (DME). FROM THE FIRST VAPOR MIXTURE A PRODUCT MIXTURE CONTAINING PROPYLENE IS PRODUCED ON A FORM-SELECTIVE ZEOLITE CATALYST OF THE PENTASIL TYPE. THE ZEOLITE CATALYST IS ARRANGED AS BED IN AT LEAST TWO SERIES-CONNECTED SHAFT REACTORS WITHOUT ANY MEANS FOR INDIRECT COOLING. A FIRST PARTIAL STREAM OF THE FIRST VAPOR MIXTURE CONTAINING DME IS INTRODUCED INTO THE FIRST SHAFT REACTOR BY ADDING WATER VAPOR. FROM THE FIRST SHAFT REACTOR A FIRST INTERMEDIATE PRODUCT MIXTURE IS WITHDRAWN AND CHARGED INTO THE SECOND SHAFT REACTOR. A SECOND PARTIAL STREAM OF THE FIRST VAPOR MIXTURE CONTAINING DME IS ALSO SUPPLIED TO THE SECOND SHAFT REACTOR. FROM THE LAST ONE OF THE SERIES-CONNECTED SHAFT REACTORS A PRODUCT MIXTURE IS WITHDRAWN, COOLED, A FRACTION RICH IN PROPANE IS SEPARATED, AND RESIDUAL SUBSTANCES ARE OBTAINED, WHICH ARE PARTLY GASEOUS AND CONTAIN HYDROCARBONS WITH 3 OR MORE CARBON ATOMS. AT LEAST A PART OF THE RESIDUAL SUBSTANCES IS RECIRCULATED INTO AT LEAST ONE OF THE SHAFT REACTORS.

Full Text

Documents:

IN-PCT-2002-1382-KOL-FORM 27 1.1.pdf

IN-PCT-2002-1382-KOL-FORM 27.pdf

IN-PCT-2002-1382-KOL-FORM-27-1.1.pdf

IN-PCT-2002-1382-KOL-FORM-27.pdf

in-pct-2002-1382-kol-granted-abstract.pdf

in-pct-2002-1382-kol-granted-claims.pdf

in-pct-2002-1382-kol-granted-correspondence.pdf

in-pct-2002-1382-kol-granted-description (complete).pdf

in-pct-2002-1382-kol-granted-drawings.pdf

in-pct-2002-1382-kol-granted-examination report.pdf

in-pct-2002-1382-kol-granted-form 1.pdf

in-pct-2002-1382-kol-granted-form 18.pdf

in-pct-2002-1382-kol-granted-form 2.pdf

in-pct-2002-1382-kol-granted-form 3.pdf

in-pct-2002-1382-kol-granted-form 5.pdf

in-pct-2002-1382-kol-granted-letter patent.pdf

in-pct-2002-1382-kol-granted-priority document.pdf

in-pct-2002-1382-kol-granted-reply to examination report.pdf

in-pct-2002-1382-kol-granted-translated copy of priority document.pdf