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. 27, 2011
Filed:
Mar. 16, 2004
Ruizhong HU, Woodstock, MD (US);
Xinjin Zhao, Woodbine, MD (US);
Richard Franklin Wormsbecher, Dayton, MD (US);
Michael Scott Ziebarth, Columbia, MD (US);
Ruizhong Hu, Woodstock, MD (US);
Xinjin Zhao, Woodbine, MD (US);
Richard Franklin Wormsbecher, Dayton, MD (US);
Michael Scott Ziebarth, Columbia, MD (US);
W.R. Grace & Co.-Conn., Columbia, MD (US);
Abstract
The present invention is directed to certain catalyst compositions and processes that are capable of reducing sulfur compounds normally found as part of the gasoline fraction streams of fluid catalytic cracking processes. The present invention is a cracking catalyst composition comprising a zeolite in combination with a Lewis Acid containing component, wherein the cracking catalyst composition comprises 0.2% NaO or less. It has been found that sulfur compounds in hydrocarbon feeds to fluid catalytic cracking processes can be reduced by at least 15% compared to the same composition, which does not comprise the aforementioned Lewis Acid containing component.