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:
Nov. 05, 2013
Filed:
Oct. 17, 2011
Roel Guillaume Hubertus Leonardus Bastings, Amsterdam, NL;
Arthur Willibrordus Titus Rots, Amsterdam, NL;
Roel Guillaume Hubertus Leonardus Bastings, Amsterdam, NL;
Arthur Willibrordus Titus Rots, Amsterdam, NL;
Shell Oil Company, Houston, TX (US);
Abstract
The invention provides a process for the production of an alkylene glycol comprising converting an alkene to the corresponding alkylene oxide; absorbing the alkylene oxide in an aqueous absorbent and then stripping; supplying the aqueous alkyene oxide stream to a carboxylation reactor; converting the alkylene oxide to a corresponding alkylene carbonate; converting the alkylene carbonate to the alkylene glycol; removing water to form a dehydrated alkylene glycol stream; and purifying the dehydrated alkylene glycol stream, wherein the start-up procedure comprises supplying water, carboxylation-hydrolysis catalyst and carbon dioxide streams to the carboxylation reactor and providing a start-up stream comprising the alkylene glycol at an injection point at or downstream of the inlet used in supplying the stream to the carboxylation reactor and recovering an alkylene glycol stream from the glycol distillation column.