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US 2009/0291338 A1Published application
Increasing The Efficiency Of A Fuel Cell
OwnerJames F. McElroy, Michael D. Gasdainventors
Life of this patent
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Abstract
A technique includes removing nitrogen from an air stream to produce an enriched oxygen stream and communicating the enriched oxygen stream to a cathode chamber of a fuel cell. The technique includes transferring the nitrogen that is removed from the air stream to a reactant stream of the fuel cell system.
Claims25
A method comprising:
- removing nitrogen from an air stream to produce an enriched oxygen stream;
- communicating the enriched oxygen stream to a cathode chamber of a fuel cell;
- and
- transferring the nitrogen removed from the air stream to a reactant stream of the fuel cell.
1 more element
A method comprising:
- communicating an air stream through a partial pressure adsorption bed to produce an enriched oxygen stream;
- communicating the enriched oxygen stream to a cathode chamber of a fuel cell;
- and
- communicating a reactant stream of the fuel cell other than the air stream through the adsorption bed to regenerate the bed.
1 more element
A fuel cell system comprising:
- a fuel cell comprising a cathode chamber;
- a partial pressure adsorption bed;
- and
- a control subsystem adapted to:
- communicate an air stream through the partial pressure adsorption bed to produce an enriched oxygen stream,
- communicate the enriched oxygen stream to the cathode chamber and
- communicate a reactant stream of the fuel cell system other than the air stream through the adsorption bed to regenerate the bed.
4 more elements
Dependencies are inferred from the claim text.