化学吸収法による炭酸ガス分離に伴うタービン出力低下量の計算評価

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タイトル別名
  • Evaluation of Power Loss for CO2 Recovery from Flue Gas of Fossil Fuel-Fired Power Plant by Chemical Absorption Method.
  • カガク キュウシュウホウ ニ ヨル タンサンガス ブンリ ニ トモナウ タービ

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説明

A process for recovering CO2 from the boiler flue gas of a power plant by a chemical absorption method requires a large amount of steam to regenerate the spent absorbent.<BR>The recovery heat exhausted from the CO2 recovery process and utilization of the recovered heat as a sourse of power plant feed water heating is studied. The reduction of generated power, required for the CO2 recovery from the flue gas by the chemical absorption method is evaluated.<BR>The effectiveness of such a heat recovery process is assessed in terms of the power loss. The power loss by heat recovery is decreased to one-third compared with that in the case of no heat recovery.<BR>The reduction of power generated in a natural gas-fired power plant is evaluated to be about 56 % when new absorbents KS-1 and KS-2 are used in the CO2 recovery process. In the case of a coal-fired power plant, the power loss amounts to about 9%.

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