Method and apparatus for separating water from a fuel cell exhaust stream
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United States of America Patent
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N/A
Issued Date -
Oct 7, 2004
app pub date -
Apr 4, 2003
filing date -
Apr 4, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A power generating apparatus for reducing product water in a fuel cell exhaust stream. The apparatus includes a fuel cell for conducting an electrochemical reaction producing electricity and an exhaust stream comprising water, a water tank having an exhaust stream inlet connected to an exhaust stream outlet of the fuel cell, and a combustor in fluid communication with an upper portion of the water tank. A portion of the water in the exhaust stream condenses and drops out of the exhaust stream within the water tank to give a water-depleted exhaust stream that is directed to the combustor. Preferably, the water tank is connected to a source of make up water and a drain. The tank can further have level control systems for maintaining minimum and maximum levels of water within the tank. The tank may have an outlet for directed collected water to a fuel cell, fuel processing or integrated fuel cell/fuel processing system. A method for separating water from a fuel cell exhaust is also provided.
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