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:
Mar. 17, 1987
Filed:
Nov. 13, 1985
Applicant:
Inventors:
Sowmithri Krishnamurthy, Glen Mills, PA (US);
Quang N Le, Cherry Hill, NJ (US);
Stephen S Wong, Medford, NJ (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; C10G / ; C10G / ;
U.S. Cl.
CPC ...
502 50 ; 208111 ; 208140 ; 502 52 ;
Abstract
A coke-deactivated noble metal-containing catalyst is sulfided with a sulfiding agent, e.g., H.sub.2 S in H.sub.2, then coke is burned from the sulfided catalyst by contacting the catalyst with oxygen, optionally in the presence of sulfur dioxide, and then the catalyst is reduced with a reducing agent, e.g., H.sub.2. The process permits burning off coke while avoiding excessive agglomeration of the noble metals on the catalyst.