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:
Aug. 12, 2014
Filed:
Dec. 20, 2011
Ling Jiao, Albany, CA (US);
Julie Chabot, Novato, CA (US);
Joseph V. Nguyen, Albany, CA (US);
Christopher Paul Dunckley, Menlo Park, CA (US);
Shuwu Yang, Richmond, CA (US);
Erin P. Maris, Alameda, CA (US);
Oleg Mironov, Hercules, CA (US);
Bruce Edward Reynolds, Martinez, CA (US);
Alexander E. Kuperman, Orinda, CA (US);
Ling Jiao, Albany, CA (US);
Julie Chabot, Novato, CA (US);
Joseph V. Nguyen, Albany, CA (US);
Christopher Paul Dunckley, Menlo Park, CA (US);
Shuwu Yang, Richmond, CA (US);
Erin P. Maris, Alameda, CA (US);
Oleg Mironov, Hercules, CA (US);
Bruce Edward Reynolds, Martinez, CA (US);
Alexander E. Kuperman, Orinda, CA (US);
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
An improved hydroprocessing slurry catalyst is provided for the upgrade of heavy oil feedstock. The catalyst comprises dispersed particles in a hydrocarbon medium with the dispersed particles have an average particle size ranging from 1 to 300 μm. The catalyst has a total pore volume of at least 0.5 cc/g and a polymodal pore distribution with at least 80% of pore sizes in the range of 5 to 2,000 Angstroms in diameter. The catalyst is prepared from sulfiding and dispersing a metal precursor solution in a hydrocarbon diluent, the metal precursor comprising at least a Primary metal precursor and optionally a Promoter metal precursor, the metal precursor solution having a pH of at least 4 and a concentration of less than 10 wt. % of Primary metal in solution.