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US 2007/0178338 A1Published application
Fuel cell system with electrochemical anode exhaust recycling
AssigneeIon America Corporation
InventorsJames McElroy, Swaminathan Venkataraman
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Abstract
A method of operating a fuel cell system includes providing a fuel inlet stream into a fuel cell stack, operating the fuel cell stack to generate electricity and a hydrogen containing fuel exhaust stream, separating at least a portion of hydrogen contained in the fuel exhaust stream using a high temperature, low hydration ion exchange membrane cell stack, and providing the hydrogen separated from the fuel exhaust stream into the fuel inlet stream.
Claims7
A method of operating a fuel cell system, comprising:
- providing a fuel inlet stream into a fuel cell stack;
- operating the fuel cell stack to generate electricity and a hydrogen containing fuel exhaust stream;
- separating at least a portion of hydrogen contained in the fuel exhaust stream using a high temperature, low hydration ion exchange membrane cell stack;
- and
- providing the hydrogen separated from the fuel exhaust stream into the fuel inlet stream.
2 more elements
A fuel cell system, comprising:
- a fuel cell stack;
- a high temperature, low hydration ion exchange membrane cell stack;
- a first conduit which operatively connects a fuel exhaust outlet of the fuel cell stack to a first inlet of the high temperature, low hydration ion exchange membrane cell stack;
- and
- a second conduit which operatively connects an outlet of the a high temperature, low hydration ion exchange membrane cell stack to the fuel cell stack fuel inlet.
2 more elements
Dependencies are inferred from the claim text.