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:
Feb. 12, 2019
Filed:
Jun. 10, 2016
L'air Liquide, Societe Anonyme Pour L'etude ET L'exploitation Des Procedes Georges Claude, Paris, FR;
Ingo Bauer, Bad Vilbel, DE;
Martin Rothaemel, Frankfurt am Main, DE;
Abstract
A process and a plant for producing olefins from oxygenates such as methanol and/or dimethyl ether are proposed, in which initially the oxygenates are converted to a primary product containing propylene, other olefins, paraffins and aromatics in an olefin synthesis reactor. The primary product is separated into hydrocarbon fractions of different C chain length, wherein short-chain olefins such as propylene are obtained and beside further fractions there is also obtained a Cfraction which contains C/Colefins, as well as a Cfraction which contains aromatics. From the latter, the aromatics are separated and alkylated with the C/Colefins to obtain alkyl aromatics. The same are hydrogenated completely and recirculated to the olefin synthesis reactor, where they likewise are converted to short-chain olefins.