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. 21, 2011
Filed:
Apr. 29, 2009
Theodorus Maesen, Richmond, CA (US);
Alexander E. Kuperman, Orinda, CA (US);
Dennis Dykstra, Pinole, CA (US);
Soy Uckung, Richmond, CA (US);
Darren Fong, Oakland, CA (US);
Theodorus Maesen, Richmond, CA (US);
Alexander E. Kuperman, Orinda, CA (US);
Dennis Dykstra, Pinole, CA (US);
Soy Uckung, Richmond, CA (US);
Darren Fong, Oakland, CA (US);
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
A method for preparing a bulk multi-metallic suitable for hydrotreating heavy oil feeds is provided. In the process of preparing the catalyst precursor which is subsequently sulfided to form the bulk catalyst, a catalyst precursor filter cake is treated with at least a chelating agent, resulting in a catalyst precursor with optimum porosity with at least 90% of the pores being macropores, and having a total pore volume of at least 0.12 g/cc.