Method for the co-production of hydrogen and electricity in a high temperature electrochemical system
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United States of America Patent
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Dec 6, 2011
Grant Date -
Dec 25, 2008
app pub date -
Aug 29, 2008
filing date -
Apr 9, 2003
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Abstract
A method in which a high temperature electrochemical system, such as a solid oxide fuel cell system, generates hydrogen and optionally electricity in a fuel cell mode. At least a part of the generated hydrogen is separated and stored or provided to a hydrogen using device. A solid oxide regenerative fuel cell system stores carbon dioxide in a fuel cell mode. The system generates a methane fuel in an electrolysis mode from the stored carbon dioxide and water by using a Sabatier subsystem. Alternatively, the system generates a hydrogen fuel in an electrolysis mode from water alone.
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