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:
Oct. 14, 2014
Filed:
Aug. 22, 2012
Wayne Errol Evans, Richmond, TX (US);
Martin Lysle Hess, Fulshear, TX (US);
Marek Matusz, Houston, TX (US);
Eugene Marie Godfried Andre Van Kruchten, Amsterdam, NL;
Wayne Errol Evans, Richmond, TX (US);
Martin Lysle Hess, Fulshear, TX (US);
Marek Matusz, Houston, TX (US);
Eugene Marie Godfried Andre Van Kruchten, Amsterdam, NL;
Shell Oil Company, Houston, TX (US);
Abstract
The invention provides a reaction system for the production of an alkylene carbonate comprising: an epoxidation zone containing an epoxidation catalyst located within an epoxidation reactor; a carboxylation zone containing an bromide-containing carboxylation catalyst located within an alkylene oxide absorber; and one or more purification zones containing a purification absorbent capable of reducing the quantity of bromide-containing impurities in a feed comprising a recycle gas, which purification zones are located upstream from the epoxidation zone; and a process for the production of an alkylene carbonate and an alkylene glycol.