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.:

US 9093681 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 28, 2015

Filed:

Dec. 13, 2011
Applicants:

Duraiswamy Kandaswamy, Huntington Beach, CA (US);

Anand S. Chellappa, Albuquerque, NM (US);

Mack Knobbe, Long Beach, CA (US);

Inventors:

Duraiswamy Kandaswamy, Huntington Beach, CA (US);

Anand S. Chellappa, Albuquerque, NM (US);

Mack Knobbe, Long Beach, CA (US);

Assignee:

Intelligent Energy Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 7/00 (2006.01); B01J 8/00 (2006.01); C01B 3/36 (2006.01); H01M 8/06 (2006.01); B01J 8/02 (2006.01); B01J 8/04 (2006.01); B01J 8/06 (2006.01); C01B 3/38 (2006.01); C01B 3/56 (2006.01);
U.S. Cl.
CPC ...
H01M 8/0612 (2013.01); B01J 8/008 (2013.01); B01J 8/0207 (2013.01); B01J 8/0285 (2013.01); B01J 8/0496 (2013.01); B01J 8/06 (2013.01); B01J 8/067 (2013.01); C01B 3/38 (2013.01); C01B 3/56 (2013.01); B01J 2208/0053 (2013.01); B01J 2208/0084 (2013.01); B01J 2208/00884 (2013.01); B01J 2219/2428 (2013.01); C01B 2203/0233 (2013.01); C01B 2203/0425 (2013.01); C01B 2203/0475 (2013.01); C01B 2203/066 (2013.01); C01B 2203/0822 (2013.01); C01B 2203/0827 (2013.01); C01B 2203/107 (2013.01); C01B 2203/1047 (2013.01); C01B 2203/1082 (2013.01); C01B 2203/1258 (2013.01); Y02E 60/50 (2013.01);
Abstract

A method for producing hydrogen using fuel cell off gases, the method feeding hydrocarbon fuel to a sulfur adsorbent to produce a desulfurized fuel and a spent sulfur adsorbent; feeding said desulfurized fuel and water to an adsorption enhanced reformer that comprises of a plurality of reforming chambers or compartments; reforming said desulfurized fuel in the presence of a one or more of a reforming catalyst and one or more of a COadsorbent to produce hydrogen and a spent COadsorbent; feeding said hydrogen to the anode side of the fuel cell; regenerating said spent COadsorbents using the fuel cell cathode off-gases, producing a flow of hydrogen by cycling between said plurality of reforming chambers or compartments in a predetermined timing sequence; and, replacing the spent sulfur adsorbent with a fresh sulfur adsorbent at a predetermined time.


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