The accumulation of heat stable salts(HSS)in amine liquid during CO2 capture cycle can increase amine liquid consumption and cause serious corrosion.Thus,a combined process was developed,including removal of HSS anion by anion exchange resin,chromaticity color by activated carbon,and further purification by macro-porous resin.Some influencing factors were investigated and the absorption performance of purified amine was tested.The results show that,the amine exchange resin can perform well even under condit...