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:
Sep. 07, 1993
Filed:
Mar. 19, 1992
Rostam J Madon, Flemington, NJ (US);
Gerald S Koermer, Roseland, NJ (US);
Michel Deeba, North Brunswick, NJ (US);
Kathleen Y Yau, Holland, PA (US);
Engelhard Corporation, Iselin, NJ (US);
Abstract
A composite fluid catalytic cracking catalyst comprising a non-zeolitic component of at least 45% Al.sub.2 O.sub.3 and containing .ltoreq.30% Y zeolite with unit cell size .ltoreq.24.29 .ANG., the matrix (non-zeolitic component) of said catalyst having a B.E.T. surface area .gtoreq.50 m.sup.2 /g and a catalyst Lewis/Bronsted acid site ratio of .gtoreq.1.5 wherein the total number of Bronsted acid sites is .ltoreq.30 micromoles/g of catalyst. The catalyst is used to increase the isobutylene and isoamylenes content of cracked products obtained in a fluid catalytic cracking unit.