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.

Date of Patent:
Jun. 09, 2009

Filed:

Aug. 24, 2006
Applicants:

Mitsuaki Echigo, Chuo-ku, JP;

Takeshi Tabata, Chuo-ku, JP;

Hirokazu Sasaki, Chuo-ku, JP;

Osamu Yamazaki, Chuo-ku, JP;

Inventors:

Mitsuaki Echigo, Chuo-ku, JP;

Takeshi Tabata, Chuo-ku, JP;

Hirokazu Sasaki, Chuo-ku, JP;

Osamu Yamazaki, Chuo-ku, JP;

Assignee:

Osaka Gas Co., Ltd., Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 31/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

A carbon monoxide removing catalyst such as a ruthenium supporting catalyst is provided for removing, through oxidation thereof, carbon monoxide from an alcohol reformed gas containing hydrogen and carbon monoxide to be supplied to a fuel cell. For its activation, the catalyst is caused to contact an inactive gas or a hydrogen-containing inactive gas consisting of less than 50 volume % of hydrogen gas and the remaining volume of inactive gas, thereby to avoid poisoning of the electrode of the fuel cell with carbon monoxide.


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