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. 14, 2000
Filed:
Mar. 26, 1996
Applicant:
Inventors:
Michael S Ziebarth, Columbia, MD (US);
Michael D Amiridis, Columbia, SC (US);
Robert H Harding, Ellicott City, MD (US);
Richard F Wormsbecher, Highland, MD (US);
Assignee:
W. R. Grace & Co.-Conn., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208113 ; 208120 ; 208153 ;
Abstract
Compositions which contain a titania component have been found which provide reduction of sulfar levels in the gasoline resulting from FCC processes (and other cracking processes conducted in the absence of added hydrogen) without the need for feedstock pretreatments nor added hydrogen. The compositions preferably also contain an alumina supported Lewis acid component. These compositions are preferably used as particles in admixture with catalytic cracking catalyst particles in the circulating catalyst inventory.