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:
Dec. 07, 1999
Filed:
Jan. 16, 1998
Applicant:
Inventor:
Toshio Itoh, Sodegaura, JP;
Assignees:
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Petroleum Energy Center, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ; B01J / ;
U.S. Cl.
CPC ...
20812001 ; 208118 ; 208119 ; 208122 ; 502 63 ; 502 64 ; 502 68 ; 502 79 ;
Abstract
A catalytic cracking catalyst, which comprises (1) a zeolite, (2) a silica.cndot.alumina or an alumina and (3) a kaolin, has a pore diameter distribution having a peak at a pore diameter of 450 to 3,000 .ANG., and has 40 to 75% of a pore volume of pores of not less than 200 .ANG. and less than 2,000 .ANG. in pore diameter and 5 to 45% of a pore volume of pores of not less than 2,000 .ANG. and less than 18,000 .ANG. in pore diameter, both based on a pore volume of pores of 40 to 18,000 .ANG. in pore diameter.