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:
Jul. 08, 2003

Filed:

Dec. 09, 1998
Applicant:
Inventors:

Shoichi Hosaka, Tokyo, JP;

Masato Kawai, Kanagawa, JP;

Chie Samata, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 3/54 ; C01B 5/00 ; C01B 3/118 ; C01B 3/120 ;
U.S. Cl.
CPC ...
C01B 3/54 ; C01B 5/00 ; C01B 3/118 ; C01B 3/120 ;
Abstract

Disclosed are a gas purification-treating agent and a gas purifying apparatus, which treat carbon monoxide and/or hydrogen contained in a gas in the presence of oxygen. The gas purification-treating agent consists of an adsorbent having carbon dioxide and/or water adsorptivity, and a metal or metal compound which is carried on the adsorbent and activates oxidation reaction of carbon monoxide and/or hydrogen. The gas purifying apparatus has the gas purification-treating agent contained in a container having a gas inlet and a gas outlet. The adsorbent adsorbs carbon dioxide and/or water contained originally in the gas, as well as, carbon dioxide and/or water to be formed by the oxidation reaction of carbon monoxide and/or hydrogen. The metal or metal compound is at least one selected from Au-on-metal oxides, Au-on-metal hydroxides and an Au colloidal powder, or palladium and/or platinum.


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