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:
Jan. 22, 1991
Filed:
Apr. 13, 1989
Applicant:
Inventors:
Amos A Avidan, Yardley, PA (US);
Arthur A Chin, Cherry Hill, NJ (US);
Assignee:
Mobil Oil Corp., Fairfax, VA (US);
Primary Examiner:
Int. Cl.
CPC ...
C10G / ; B01J / ;
U.S. Cl.
CPC ...
208 / ; 208113 ; 502521 ; 502 34 ;
Abstract
A known method for passivating contaminant metals on an FCC catalyst comprises treating the catalyst with a sufficient amount of a sulfur-containing compound capable of associating with the contaminant metals when in contact therewith. An improvement comprises contacting the catalyst with the sulfur-containing compound for at least 3 seconds. In another embodiment of the invention, the improvement comprises contacting the catalyst with the sulfur-containing compound in a separate treatment vessel.