Patent ID: 8741034

Claim:
An exhaust gas treatment system comprising: a CO 2 chemical absorption equipment comprising a CO 2 absorption column in which an absorbing solution contacts an exhaust gas discharged from a boiler to absorb CO 2 contained in the exhaust gas, and a CO 2 regeneration column in which the absorbing solution that has absorbed CO 2 is heated to release CO 2 from the absorbing solution, and wherein the absorbing solution after release of CO 2 is delivered from the CO 2 regeneration column to the CO 2 absorption column; a heat recovery device for recovering heat from the exhaust gas; a heat exchange unit for giving the heat recovered by the heat recovery device to the absorbing solution after release of CO 2 is delivered from the CO 2 regeneration column; and a reboiler for heating the absorbing solution delivered from the heat exchange unit.