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. 07, 2008
Filed:
Dec. 21, 2004
Saleh Elomari, Fairfield, CA (US);
Steve Trumbull, San Leandro, CA (US);
Hye Kyung C. Timken, Albany, CA (US);
Robert Cleverdon, Walnut Creek, CA (US);
Saleh Elomari, Fairfield, CA (US);
Steve Trumbull, San Leandro, CA (US);
Hye Kyung C. Timken, Albany, CA (US);
Robert Cleverdon, Walnut Creek, CA (US);
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
A process for the production of a high quality gasoline blending components from refinery process streams by the alkylation of light isoparaffins with olefins using an ionic liquid catalyst is disclosed. The process includes reacting a refinery stream containing isopentane and/or isobutane with a refinery stream containing ethylene and/or propylene and butylenes under alkylation conditions in the presence of a chloroaluminate ionic liquid catalyst comprising a hydrocarbyl substituted pyridinium chloroaluminate or a hydrocarbyl substituted imidazolium chloroaluminate of the general formulas A and B, respectively. Where R═H, methlyl, ethyl, propyl, butyl, pentyl or hexyl group and X is a chloroaluminate, and R1 and R2=H, methyl, ethyl, propyl, butyl, pentyl or hexyl group and where R1 and R2 may or may not be the same.