Catalytic pollution control system for gas turbine exhaust

Details Catalytic pollution control system for gas turbine exhaust Catalytic pollution control system for gas turbine exhaust

1982-12-27

1984-09-25

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423235, 422 62, 422111, 436116, 436117, 436118, 364500, B01J 800, C01B 2100

Patent

active

044735367

ABSTRACT:
A steam and gas turbine (STAG) plant employs a catalyst in a heat recovery steam generator to react injected ammonia with NO.sub.x from the combustor of the gas turbine to reduce atmospheric emission of NO.sub.x from the system. Rapid control of ammonia injection is achieved using a prediction of the NO.sub.x being generated in dependence upon the operating conditions of the combustor. A trimming signal from a measurement of NO.sub.x being emitted from the heat recovery steam generator downstream of the catalyst is employed to complete the NO.sub.x control loop.

REFERENCES:
patent: 3977836 (1976-08-01), Matsuda et al.
patent: 4188190 (1980-02-01), Muraki et al.
patent: 4213944 (1980-07-01), Azuhata et al.
patent: 4293521 (1981-10-01), Isahaya et al.
patent: 4302205 (1981-11-01), Muraki et al.
patent: 4314345 (1982-02-01), Shiraishi et al.
patent: 4324759 (1982-04-01), Aoki et al.

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