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:
May. 08, 2012
Filed:
Oct. 28, 2008
Theodorus Ludovicus Michael Maesen, Richmond, CA (US);
Alexander E. Kuperman, Ornida, CA (US);
Bi-zeng Zhang, Albany, CA (US);
Andrew Rainis, Walnut Creek, CA (US);
Christopher J. Dillon, Manhattan Beach, CA (US);
Theodorus Ludovicus Michael Maesen, Richmond, CA (US);
Alexander E. Kuperman, Ornida, CA (US);
Bi-Zeng Zhang, Albany, CA (US);
Andrew Rainis, Walnut Creek, CA (US);
Christopher J. Dillon, Manhattan Beach, CA (US);
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
A catalyst precursor composition and methods for making such catalyst precursor are disclosed. The catalyst precursor comprises at least a Promoter metal selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, at least one Group VIB metal, at least one organic, oxygen-containing ligand, and a cellulose-containing material. Catalysts prepared from the sulfidation of such catalyst precursors are used in the hydroprocessing of hydrocarbon feeds. In one embodiment, the sulfidation is carried out by contacting the catalyst precursor with hydrogen and a sulfur containing compound, wherein the contacting is carried out ex-situ. Catalysts prepared from such catalyst precursors have a fouling rate of less than 8° F. (4.4° C.) per 1000 hour.