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:
Apr. 26, 2011
Filed:
Apr. 29, 2009
Dennis Dykstra, Pinole, CA (US);
Alexander E. Kuperman, Orinda, CA (US);
Theodorus Maesen, Richmond, CA (US);
Soy Uckung, Richmond, CA (US);
Darren Fong, Oakland, CA (US);
Dennis Dykstra, Pinole, CA (US);
Alexander E. Kuperman, Orinda, CA (US);
Theodorus Maesen, Richmond, CA (US);
Soy Uckung, Richmond, CA (US);
Darren Fong, Oakland, CA (US);
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
A process for preparing a bulk multi-metallic catalyst for hydrotreating heavy oil feeds is provided. The catalyst is particularly suitable for hydrotreating heavy oil feeds having a boiling point in the range of 343° C. (650° F.)- to 454° C. (850° F.), an average molecular weight Mn ranging from 300 to 400, and an average molecular diameter ranging from 0.9 nm to 1.7 nm. The bulk multi-metallic catalyst is prepared by sulfiding a catalyst precursor that has an essentially monomodal pore volume distribution with at least 95% of the pores being macropores, and having a total pore volume of at least 0.08 g/cc.