Appeal No. 1997-4422
Application 08/269,797
Appellants’ invention is directed to a reduced ammonia
power generation system. Claims 24 and 38, set forth below,
are representative of the claimed subject matter:
24. A reduced ammonia power generation system comprising:
a gasification unit;
a hot gas desulfurization system arranged to receive fuel
gas from said gasification unit;
at least one catalytic reactor arranged to receive fuel
gas from said hot gas desulfurization system, said catalytic
reactor comprising a water-gas-shift stage for raising the
fuel gas temperature, a methanation of CO stage for raising
the fuel gas temperature and for consuming H2, and an ammonia
decomposition stage for reducing the ammonia content of the
fuel gas, in that sequence; [emphasis added]
a particulate removal system arranged to receive the
reduced ammonia fuel gas from said catalytic reactor; and
a gas turbine arranged to receive the reduced ammonia fuel
gas from said particulate removal system.
38. A reduced ammonia power generation system comprising:
a gasification unit;
a hot gas desulfurization system arranged to receive fuel
gas from said gasification unit;
at least one catalytic reactor arranged to receive fuel
gas from said hot gas desulfurization system, said catalytic
reactor comprising a water-gas-shift and methanation stage for
raising the fuel gas temperature and for consuming H2 [sic,
H2], and an ammonia decomposition stage for reducing the
ammonia content of the fuel gas, in that sequence. [emphasis
added]
The prior art references of record relied upon by the
examiner in rejecting the appealed claims are:
Aldridge et al. (Aldridge) 3,850,841 Nov. 26, 1974
Graboski et al. (Graboski) 3,904,386 Sep. 09, 1975
Suggitt et al. (Suggitt) 4,202,167 May 13,
1980
Kimura et al. (Kimura ‘275) 4,233,275 Nov. 11, 1980
Flockenhaus et al. 4,259,312 Mar. 31, 1981
(Flockenhaus)
Kimura et al. (Kimura ‘749) 4,273,749 Jun. 16, 1981
Takahashi et al. (Takahashi) 4,273,748 Jun. 16, 1981
Shah et al. (Shah) 4,476,683 Oct. 16, 1984
Babu et al. (Babu) 4,699,632 Oct. 13, 1987
Deinert 4,779,412 Oct. 25, 1988
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