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:
Oct. 25, 2011
Filed:
Mar. 04, 2009
Applicants:
Yoshiyuki Nagayasu, Yokohama, JP;
Atsushi Segawa, Yokohama, JP;
Kazunori Miyazawa, Yokohama, JP;
Yoshihiro Kobori, Yokohama, JP;
Inventors:
Yoshiyuki Nagayasu, Yokohama, JP;
Atsushi Segawa, Yokohama, JP;
Kazunori Miyazawa, Yokohama, JP;
Yoshihiro Kobori, Yokohama, JP;
Assignee:
Nippon Oil Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01J 29/06 (2006.01); B01J 8/00 (2006.01); C07C 7/148 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system is provided for desulfurizing a hydrocarbon fuel containing a light amount of methanol and a slight amount of water. The desulfurization system uses a Y-type zeolite-based desulfurizing agent containing at least copper arranged upstream of the system and an X-type zeolite-based desulfurizing agent containing at least silver arranged downstream of the system and thus can maintain desulfurization effect for a long period of time.