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:
May. 26, 1998
Filed:
Sep. 04, 1992
Applicant:
Inventors:
Yao-Jyh Robert Huang, Houston, TX (US);
Shun Chong Fung, Bridgewater, NJ (US);
Gary Brice McVicker, Califon, NJ (US);
Jar-lin Kao, Houston, TX (US);
John Francis Walsh, Houston, TX (US);
Kenneth Ray Clem, Humble, TX (US);
Assignee:
Exxon Research and Engineering Company, Florham Park, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ; C10G / ;
U.S. Cl.
CPC ...
502 37 ; 502 35 ; 208140 ;
Abstract
The present invention is a process for regenerating deactivated catalyst or redispersing catalytic metal in a fresh catalyst comprising at least one Group VIII catalytic metal, zeolite, an inert binder. The process comprises coke burn, hydrogen reduction, catalyst conditioning, oxychlorination, low pressure stripping, and low pressure final hydrogen reduction.