Combined gas and steam turbine plant with coal gasification

Details Combined gas and steam turbine plant with coal gasification Combined gas and steam turbine plant with coal gasification

1990-06-22

1992-01-14

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

With combustible gas generator

60 39182, F02C 328, F02C 618

Patent

active

050799096

ABSTRACT:
A combined gas and steam turbine plant includes a coal gasification system having a heat exchanger device and preferably a gas scrubber connected downstream of the heat exchanger device. A gas turbine part is connected downstream of the coal gasification system and has an exhaust gas turbine. A steam generator system receives exhaust gas from the exhaust gas turbine and has an economizer heating surface, an evaporator heating surface, and superheater heating surfaces. A steam turbine part is connected to the steam generator system and has a high-pressure feedwater system. The heat exchanger device of the coal gasification system is connected in such a way that it directly transfers or gives up thermal energy for feedwater heating or steam generation to the high-pressure feedwater system of the steam turbine part.

REFERENCES:
patent: 4099374 (1978-07-01), Foster-Pegg
patent: 4261166 (1981-04-01), Mayhofer
patent: 4288979 (1981-09-01), Liljedahl et al.
patent: 4546603 (1985-10-01), Anakawa et al.
patent: 4723407 (1988-02-01), Goebel et al.
R. Muller and U. Schiffers "Kohledruckvergasung fur den Kombiprozess" (Coal Gasification Under Pressure for the Combined Cycle Process); VGB-Kraftwerkstechnik 68 (1988); pp. 1022-1030.
R. Muller and J. Karg "Assessment of Coal Gasification for Combined Cycle Power Plants"; Siemens-Publication No. A19100-U936-A103-X-7600.

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