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Ammonia fueled SOFC system

  • US 8,916,300 B2
  • Filed: 09/07/2012
  • Issued: 12/23/2014
  • Est. Priority Date: 09/07/2012
  • Status: Active Grant
First Claim
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1. A method of operating a fuel cell system, comprising:

  • providing a fuel inlet stream comprising ammonia;

    providing the fuel inlet stream into a solid oxide fuel cell stack;

    operating the solid oxide fuel cell stack to generate a fuel exhaust stream;

    separating at least a portion of hydrogen from a first portion of the fuel exhaust stream using a hydrogen separator to generate a purified fuel exhaust stream, wherein the hydrogen separator is a plurality of cascaded hydrogen pumps;

    recycling the purified fuel exhaust stream to the fuel inlet stream;

    providing a portion of the fuel inlet stream comprising ammonia to an ATO, wherein the ATO does not receive any portion of the fuel exhaust stream; and

    providing air from the solid oxide fuel cell stack to the ATO.

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