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:
Sep. 11, 2007
Filed:
Jun. 29, 2005
Deng-yang Jan, Elk Grove Village, IL (US);
James A. Johnson, Clarendon Hills, IL (US);
Robert J. Schmidt, Barrington, IL (US);
Guy B. Woodle, Mount Prospect, IL (US);
Deng-Yang Jan, Elk Grove Village, IL (US);
James A. Johnson, Clarendon Hills, IL (US);
Robert J. Schmidt, Barrington, IL (US);
Guy B. Woodle, Mount Prospect, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
A process for the alkylation of aromatics with olefins using a solid catalyst bed containing UZM-8 zeolite is disclosed. A polyalkylated aromatic is passed to the catalyst bed to reduce the concentration of the olefin at alkylation conditions. A portion of the effluent recovered from the catalyst bed may be recycled to the catalyst bed. Such operation can decrease the catalyst deactivation rate and the formation of diphenylalkanes. The process disclosed herein is applicable to processes for the production of a wide variety of commercially important alkylated aromatics, including ethylbenzene and cumene.