CARBON-DIOXIDE-RECOVERY-TYPE STEAM POWER GENERATION SYSTEM AND METHOD OF OPERATING THE SAME

摘要

PROBLEM TO BE SOLVED: To separate and recover carbon dioxide while preventing the performance of a turbine from deteriorating.

SOLUTION: A carbon-dioxide-recovery-type steam power generation system includes: an absorption column 403 that allows an absorption liquid to absorb carbon dioxide included in exhaust gas generating from a boiler 6; a regeneration column 405 that allows a carbon dioxide gas to be released from the absorption liquid having absorbed the carbon dioxide and discharges the gas; a reboiler 41 that heats the absorption liquid from the regeneration column 405 and supplies steam thus generated to the regeneration column 405; a turbine that is driven to rotate by the steam supplied from the boiler 6; a condenser 26 that cools steam exhausted from the turbine to generate condensate; a heater 32 that heats the condensate; a water supply pump 34 that supplies the heated condensate to the boiler 6; a line for supplying the steam extracted from the turbine to the reboiler 41 and the heater 32; and a steam flow rate adjusting means that maintains an amount of the steam extracted from the turbine to be constant.

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