EXHAUST GAS TREATMENT SYSTEM AND METHOD

摘要

An exhaust gas treatment system comprising: a desulfuration unit (15) which can remove any sulfur oxide from an exhaust gas (12) discharged from a boiler (11); a cooling column (16) which is arranged on a latter stream side of the desulfuration unit (15), can remove any sulfur oxide that remains in the exhaust gas (12), and can decrease the temperature of the gas; a CO2 collection unit (17) which comprises a CO2 absorption column that can bring CO2 contained in the exhaust gas (12) into contact with a CO2 absorption solution to remove CO2 and an absorption solution reproduction column that can release CO2 from the CO2 absorption solution to collect CO2 and can reproduce the CO2 absorption solution; and a mist-generating substance removal unit (20) which can remove any mist-generating substance, wherein the mist-generating substance is a source of generation of a mist in the CO2 absorption column in the CO2 collection unit (17) prior to the introduction of the exhaust gas (12) into the CO2 collection unit (17).