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Fuel cell system containing anode tail gas oxidizer and hybrid heat exchanger/reformer

  • US 9,105,894 B2
  • Filed: 09/05/2013
  • Issued: 08/11/2015
  • Est. Priority Date: 02/19/2008
  • Status: Active Grant
First Claim
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1. A method of operating fuel cell system, comprising:

  • providing a hydrocarbon fuel inlet stream into a fuel heat exchanger containing a fuel reformation catalyst;

    reforming the hydrocarbon fuel in the fuel heat exchanger;

    providing a reformed fuel from the fuel heat exchanger into at least one fuel cell stack;

    providing at least one exhaust stream from the at least one fuel cell stack into the fuel heat exchanger to exchange heat with the hydrocarbon fuel inlet stream;

    providing an exhaust stream from the anode tail gas oxidizer through an air heat exchanger; and

    providing the exhaust stream from the anode tail gas oxidizer exiting the air heat exchanger to steam generator.

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