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US 2004/0202902 A1Published application
Integrated fuel cell system
AssigneePlug Power Inc.
InventorWayne W. Huang
Life of this patent
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Abstract
A simplified PEM fuel cell system is integrated with a fuel processor and an exhaust gas oxidizer to ensure clean emissions. The fuel cell has an operating temperature of 100-200° C., and utilizes reformate fuel having a carbon monoxide level greater than 1000 parts per million.
Claims2
1-20. (Cancelled)
A method of operating a fuel cell system, comprising:
- converting a flow of hydrocarbon into a fuel stream comprising hydrogen and carbon monoxide;
- reacting a portion of the carbon monoxide with steam to produce additional hydrogen in the fuel stream;
- flowing the fuel stream through a polymer membrane fuel cell having a temperature greater than 120° C.;
- exhausting the fuel stream from the fuel cell, wherein the exhausted fuel stream comprises at least 1,000 parts per million carbon monoxide;
- and
- flowing the exhausted fuel stream to an oxidizer wherein the carbon monoxide in the exhausted fuel stream is reduced to a level less than 100 parts per million.
3 more elements
Dependencies are inferred from the claim text.