| 摘要 |
To provide a carbon dioxide recovery system and a carbon dioxide recovery method that enable to reliably regenerate a carbon dioxide absorbent without imposing 5 loads on boiler facilities. A carbon dioxide recovery system includes a high pressure turbine 11, an intermediate-pressure turbine 12, a low-pressure turbine 13, a main boiler 15 that generates steam 14 for driving these turbines, a carbon dioxide 10 recovery unit 24 including a carbon dioxide absorber 21 that absorbs and reduces carbon dioxide in flue gas (emission gas) G emitted from the main boiler 15 using a carbon dioxide absorbent and an absorbent regenerator 23 that regenerates a carbon dioxide absorbent having absorbed 15 the carbon dioxide using a regenerating superheater 22 to obtain a regenerated carbon dioxide absorbent, an auxiliary boiler 30 that generates saturated water vapor 31 to be supplied to the regenerating superheater 22 in the absorbent regenerator 23, and a steam turbine 32 that is 20 driven by steam from the auxiliary boiler 30. COMPRESSED C02 AUXILIAR I -COMPRESSOR CO2 RECOVERY UNITW FLUE ? ,, a CB ABSOR SORBER REGENE -- 22 REGENERATING SUPERHEATER 'T22a CONDENSED WATER MAINL 7 < HPMPL FOLNER > 1000 MW STEAM 17a |
