Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature
Reexamination Certificate
2006-02-07
2006-02-07
Ryan, Patrick Joseph (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Having magnetic field feature
C205S637000, C204S277000, C204S278000
Reexamination Certificate
active
06994929
ABSTRACT:
In one embodiment, an electrochemical cell system comprises: a fuel cell stack comprising a fuel cell having a fuel cell hydrogen inlet and a fuel cell hydrogen outlet, and a first electrochemical hydrogen compressor in fluid communication with the fuel cell hydrogen outlet, wherein the first electrochemical hydrogen compressor comprises electrodes in electrical communication with an electricity source, and a compressed hydrogen outlet in fluid communication with the fuel cell hydrogen inlet. In one embodiment, the method of operating the electrochemical cell system comprises: introducing hydrogen feed to a fuel cell at a feed rate of greater than stoichiometry, directing excess hydrogen from the fuel cell to a first electrochemical hydrogen compressor, electrochemically compressing the excess hydrogen to compressed hydrogen, and recirculating the compressed hydrogen gas to the fuel cell.
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Balasubramanian Bhaskar
Barbir Frano
Stone Matt
Cantor & Colburn LLP
Parsons Thomas H.
Proton Energy Systems, Inc.
Ryan Patrick Joseph
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