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Catalytic combustor for integrated gasification combined cycle power plant

United States Patent

December 16, 2008
View the Complete Patent at the US Patent & Trademark Office
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A gasification power plant 10 includes a compressor 32 producing a compressed air flow 36, an air separation unit 22 producing a nitrogen flow 44, a gasifier 14 producing a primary fuel flow 28 and a secondary fuel source 60 providing a secondary fuel flow 62 The plant also includes a catalytic combustor 12 combining the nitrogen flow and a combustor portion 38 of the compressed air flow to form a diluted air flow 39 and combining at least one of the primary fuel flow and secondary fuel flow and a mixer portion 78 of the diluted air flow to produce a combustible mixture 80. A catalytic element 64 of the combustor 12 separately receives the combustible mixture and a backside cooling portion 84 of the diluted air flow and allows the mixture and the heated flow to produce a hot combustion gas 46 provided to a turbine 48. When fueled with the secondary fuel flow, nitrogen is not combined with the combustor portion.
Bachovchin; Dennis M. (Mauldin, SC), Lippert; Thomas E. (Murrysville, PA)
Siemens Energy, Inc. (Orlando, FL)
11/ 122,567
May 5, 2005
This invention was made with U.S. Government support through Government Contract Number DE-FC26-03NT41891 awarded by the Department of Energy, and, in accordance with the terms set forth in said contract, the U.S. Government may have certain rights in the invention.