Power plants – Combustion products used as motive fluid – With combustible gas generator
Patent
1991-03-29
1993-11-30
Bertsch, Richard A.
Power plants
Combustion products used as motive fluid
With combustible gas generator
F02B 4300
Patent
active
052654109
ABSTRACT:
A coal gasification composite power generation system including a primary combustor (2) for effecting high temperature combustion of coal fuel (8) under a reducing condition by compressed air or oxygen supplied from a compressor (1), a secondary combustor (3) for effecting complete combustion of the resulting product gas of the primary combustor, the secondary combustor (3) being supplied with the primary combustor product gas, air or oxygen for complete burning of the primary combustor product gas and an additive gas for controlling the combustion gas temperature in the secondary combustor consisting either of steam or carbon dioxide, a gas turbine (4) for driving the compressor (1) and driven by a working fluid consisting of the resulting combustion gas from the secondary combustor. Disposed in series downstream of the gas turbine are a waste heat system generator (5, 18) a desulfurizer (6) and a condenser (7) for separating CO.sub.2 and H.sub.2 O from the exhaust gas of the gas turbine (4). Either CO.sub.2 or H.sub.2 O, converted to steam in the steam generator (5), is fed to the secondary combustor for controlling the temperature of the combustion gas therein.
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Bertsch Richard A.
Kocharov Michael I.
Mitsubishi Jukogyo Kabushiki Kaisha
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John Brown
The patent will contribute to the mitigation of global warming by drastically reducing CO2 emissions from fossil fuel-fired power generation plants with much less investment cost, deterioration of plant efficiency and environmentally friendly.
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