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:
Jul. 20, 2010
Filed:
Oct. 05, 2007
Jane C. Cheng, Bridgewater, NJ (US);
Sal Miseo, Pittstown, NJ (US);
Stuart L. Soled, Pittstown, NJ (US);
John S. Buchanan, Lambertville, NJ (US);
Jennifer S. Feeley, Lebanon, NJ (US);
Jane C. Cheng, Bridgewater, NJ (US);
Sal Miseo, Pittstown, NJ (US);
Stuart L. Soled, Pittstown, NJ (US);
John S. Buchanan, Lambertville, NJ (US);
Jennifer S. Feeley, Lebanon, NJ (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
A substantially surface-deactivated catalyst composition that is stable at least to 300° C. The catalyst includes a zeolite catalyst (e.g., ZSM-22, ZSM-23, or ZSM-57) having active internal Brönsted acid sites and a surface-deactivating amount of a rare earth or yttrium oxide (e.g., chosen from lanthanum oxide or lanthanides oxide). This catalyst is preferably used in a process for producing a higher olefin by oligomerizing a light olefin, wherein the process includes contacting a light olefin under oligomerization conditions with the substantially surface-deactivated catalyst composition.