Evonik Degussa Gmbh

Evonik Operations Gmbh

Thyssenkrupp Industrial Solutions Ag

Georg Friedrich Thiele

Hans-Jurgen Kohle

Holger Wiederhold

David Bolz

Bernd Jaeger

Hans-Jürgen Köhle

Sebastian Imm

Marina Lazar

The integrated process comprises a step a) of dehydrogenating propane providing a stream S1 comprising propane and propene; a step b) of separating stream S1 in at least one rectification column, providing an overhead product stream S2 comprising more than 99% by weight propene, a side stream S3 comprising from 90 to 98% by weight propene and a bottoms product stream S4 enriched in propane; a step c) of reacting propene with hydrogen peroxide in the presence of an epoxidation catalyst using propene in molar excess; and a step d) of separating non-reacted propene and propene oxide from the reaction mixture of step c) providing a propene oxide product and a stream S5 comprising propene and propane; wherein stream S3 is passed to step c), stream S5 is recycled to step b) and stream S4 is recycled to step a).

Integrated process for making propene and propene oxide from propane

The process for preparing 1,2-propanediol from propene and hydrogen peroxide comprises the steps of

Method for producing propylene glycol from propene and hydrogen peroxide

Growing community of inventors

Friedberg, Germany

Georg Friedrich Thiele