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. 24, 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);
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);
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
A catalyst precursor composition and methods for making such a 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, having an oxidation state of +2 or +4, at least one Group VIB metal, at least one organic, oxygen-containing ligand, and a cellulose-containing material. In one embodiment, the catalyst precursor is of the formula A[(M) (OH)(L)](MO), wherein A is one or more monovalent cationic species, Mis selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, L is one or more oxygen-containing ligands, Mis at least a Group VIB metal, M:Mhas an atomic ratio between 100:1 and 1:100. In one embodiment, catalysts prepared from the sulfidation of such catalyst precursors are used in the hydroprocessing of hydrocarbon feeds. In a hydroconversion process at a hydrogen partial pressure of ˜450 psig, the catalyst a 700° F.+ conversion rate of at least 50% of the 700° F.+ conversion results gives obtained under comparable conditions and with a hydrogen partial pressure of 600 psig.