| 摘要 |
PURPOSE: A combined cycle power generation system provided with a pollutant compensation density reduction device is provided to decrease the compensation discharge density of pollutants like nitrogen oxides in an exhaust gas. CONSTITUTION: A combined cycle power generation system(100) provided with a pollutant compensation density reduction device comprises an air compressor(110) compressing the air, a gas turbine(120) rotating with high temperature and high pressure gas generated by combusting the compressed air and high pressure gas fuel, a power generator connected to the gas turbine to generate electricity, a duct(130) guiding exhaust gas discharged from the gas turbine and guiding to a steam generator, a steam generator(140) producing steam with exhaust gas discharged from the gas turbine, a steam turbine(150) rotating with steam generated by the steam generator, a power generator connected to the steam turbine to generate electricity, a stack(160) discharging exhaust gas finally, and a pollutant compensation density reduction device(200) installed to the duct to reduce oxygen concentration in exhaust gas and provided with a gas fuel injection device(210) to inject gas fuel reacting on oxygen at the rear end of the gas turbine.
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