Oblon, Spivak, McClelland, Maaier & Neustadt, L.L.P.
Method and apparatus of controlling exhaust gas in oxyfuel combustion boiler
Provided are a method and an apparatus of controlling exhaust gas in an oxyfuel combustion boiler which can attain stable combustion of the boiler while an amount of unburned combustibles and a NOx density in exhaust gas are maintained in their allowable ranges. A rate of supply of directly supplied oxygen to burners 6 to a total amount of oxygen produced by an air separation unit 18 is regulated in an operating range where the NOx density in the exhaust gas is below a NOx limit value and the amount of unburned combustibles in the exhaust gas is blow an unburned combustible limit value to thereby attain stable combustion of the oxyfuel combustion boiler.
Electric Power Development Co., Ltd. IHI Corporation
F F F Y Y F F F
F23C F23L F23L Y02E Y02E F23C F22B F23L
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Terutoshi Toshihiko Shuuhei Shuzo
Uchida Yamada Terushita Watanabe