The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 2017
Filed:
Sep. 19, 2006
Martin Rothaemel, Witten, DE;
Henning Buchold, Hanau, DE;
Harald Kömpel, Neu-Isenburg, DE;
Andreas Glasmacher, Frankfurt, DE;
Andreas Ochs, Friedrichsdorf, DE;
Martin Rothaemel, Witten, DE;
Henning Buchold, Hanau, DE;
Harald Kömpel, Neu-Isenburg, DE;
Andreas Glasmacher, Frankfurt, DE;
Andreas Ochs, Friedrichsdorf, DE;
Lurgi GmbH, Frankfurt am Main, DE;
Abstract
In producing C-Colefins, in particular propylene, from an educt mixture containing steam and oxygenates, such as methanol and/or dimethyl ether, the educt mixture is reacted in a reactor on a catalyst to a reaction mixture comprising low-molecular olefins and gasoline hydrocarbons, which in a first separating device is separated into a mixture rich in Colefins, a mixture rich in Cgasoline hydrocarbons, and an aqueous phase. To increase the yield of propylene the mixture rich in Cgasoline hydrocarbons is supplied to a second separating device, in which the aromatics contained in the mixture are separated. The residual stream largely free from aromatics is at least partly recirculated to the reactor.