Fuel cell system with degradation protected anode
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United States of America Patent
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Jun 5, 2007
Grant Date -
Jun 3, 2004
app pub date -
Jul 28, 2003
filing date -
Jul 31, 2002
priority date (Note) -
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Abstract
A method of operating a fuel cell including an anode, a cathode, a first passage, and a second passage, wherein the anode is disposed in the first passage and the cathode in the second passage including producing a non-explosive gaseous feed consisting of (i) at least one oxidizable component having a greater tendency to undergo oxidation relative to the anode, and (ii) a remainder which is the predominant component in the gaseous feed consisting essentially of water vapor; and introducing the non-explosive gaseous feed to the first passage to form a first gaseous feed stream flowing through the first passage when the anode realizes a temperature effective to facilitate deteriorative oxidation of the anode in the presence of an oxidizing agent. The non-explosive gaseous feed is provided to mitigate or prevent anode oxidation and the formation of potentially explosive gaseous mixtures.
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