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:
Aug. 17, 2010
Filed:
Mar. 31, 2006
Jun Du, Beijing, CN;
Zheng LI, Beijing, CN;
Jun Long, Beijing, CN;
Mingde Xu, Beijing, CN;
Zhijian Da, Beijing, CN;
Huiping Tian, Beijing, CN;
Mingyuan He, Beijing, CN;
Jun Du, Beijing, CN;
Zheng Li, Beijing, CN;
Jun Long, Beijing, CN;
Mingde Xu, Beijing, CN;
Zhijian Da, Beijing, CN;
Huiping Tian, Beijing, CN;
Mingyuan He, Beijing, CN;
China Petroleum & Chemical Corporation, Beijing, CN;
Research Institute of Petroleum Processing, Sinopec, Beijing, CN;
Abstract
The present invention provides a cracking catalyst, containing a rare-earth Y-zeolite and a support, which is characterized in that the rare-earth content in crystal lattice of the rare-earth Y-zeolite is 4-15 wt % of REO; the original unit cell size is 2.440-2.465 nm; the equilibrium unit cell size of the catalyst after 100% steam-aging treatment at 800° C. for 17 hours is larger than 2.435 nm; the rare-earth atom content in the support is 1.0-8.0 wt % of the support. The present invention also relates to a preparation process for the same catalyst.