Patent ID: 8501130

Claim:
A system for recovering CO 2 from gas to be processed containing CO 2 , comprising: a CO 2 absorption apparatus having an absorption unit that brings the gas to be processed containing CO 2 into contact with CO 2 absorbent to absorb and remove CO 2 from the gas to be processed; a regeneration apparatus configured to heat the absorbent that has absorbed CO 2 , separates and removes CO 2 from the absorbent, exhausts CO 2 and regenerates the absorbent; a condensation apparatus configured to cool CO 2 gas exhausted from the regeneration apparatus to condense moisture in the gas; and a condensed water distribution apparatus configured to monitor changes in concentration of the CO 2 absorbent in the condensed water obtained by the condensation apparatus and depending on the value of a measured concentration, supply the condensed water as a part of washing fluid of the washing unit in the CO 2 absorption apparatus or a part of the CO 2 absorbent of the absorption unit.