CATHODE GAS RECIRCULATION METHOD AND SYSTEM FOR FUEL CELLS
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United States of America Patent
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Issued Date -
Oct 1, 2015
app pub date -
Mar 19, 2015
filing date -
Mar 27, 2014
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Abstract
The cathode recirculation system for a fuel cell module may include an inert gas inlet passage configured to receive inert gas and an oxygen gas inlet passage configured to receive oxygen, a blending component in fluid communication with the inert gas inlet passage, the oxygen gas inlet passage, and an inlet of at least one cathode, and a recirculation line in fluid communication with an outlet of the at least one cathode and the blending component configured to recirculate a mixed gas stream containing oxygen and an inert gas. At least a portion of the mixed gas released from the at least one cathode may be recirculated back to the blending component where oxygen, inert gas, or both oxygen and inert gas are introduced into the recirculated mixed gas stream and then supplied to the inlet of the at least one cathode.
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