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:
Jun. 14, 2016
Filed:
Nov. 03, 2005
Wu Cheng Cheng, Ellicott City, MD (US);
Meenakshi Sundaram Krishnamoorthy, Columbia, MD (US);
Ranjit Kumar, Clarksville, MD (US);
Xinjin Zhao, Woodbine, MD (US);
Michael Scott Ziebarth, Columbia, MD (US);
Wu Cheng Cheng, Ellicott City, MD (US);
Meenakshi Sundaram Krishnamoorthy, Columbia, MD (US);
Ranjit Kumar, Clarksville, MD (US);
Xinjin Zhao, Woodbine, MD (US);
Michael Scott Ziebarth, Columbia, MD (US);
W. R. GRACE & CO.-CONN., Columbia, MD (US);
Abstract
A catalyst composition comprising at least about 10% by weight pentasil, at least about 12% by weight Y-type zeolite at a pentasil to Y zeolite ratio of at least 0.25, and wherein the pentasil and Y zeolite comprise at least about thirty-five percent of the catalyst have been shown to optimize light olefin yields and LPG from FCC processes. Embodiments having matrix surface areas greater than 25 m/g, phosphorous and rare earth are preferred. The compositions of this invention are particularly useful in typical fluid catalytic cracking (FCC) processes.