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. 16, 2000
Filed:
May. 06, 1997
Applicant:
Inventors:
Osamu Chiyoda, Saitama, JP;
Kazushi Usui, Saitama, JP;
Mitsugu Yumoto, Saitama, JP;
Kazuo Idei, Saitama, JP;
Etsuo Suzuki, Saitama, JP;
Katsuyoshi Ohki, Saitama, JP;
Takashi Fujikawa, Saitama, JP;
Hatsutaro Yamazaki, Saitama, JP;
Shunji Kitada, Saitama, JP;
Assignees:
Cosmo Oil Co., Ltd., Tokyo, JP;
Petpoleum Energy Center, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
2082 / ; 2082 / ; 208217 ;
Abstract
A process for producing a hydrodesulfurization catalyst is disclosed, comprising impregnating an inorganic oxide carrier containing a crystalline aluminosilicate with a solution consisting of Group VI metal oxide, a Group VIII metal oxide, and phosphorus. Also disclosed is a process for deep hydrodesulfurization of a gas oil fraction using said catalyst to obtain gas oil having an extremely low sulfur content.