Carbon dioxide composite absorbent

The invention belongs to the field of environmental protection engineering and ecological protection engineering, and particularly relates to a carbon dioxide composite absorbent. The carbon dioxide composite absorbent consists of an accelerant, alcohol amine serving as an activating agent and a solvent, the accelerant is tris (dimethylamino propyl) hexahydrotriazine. The carbon dioxide composite absorbent disclosed by the invention is high in CO2 load and cyclic absorption capacity, has a relatively high absorption rate, enhances the mass transfer efficiency, greatly improves the CO2 capture performance and the degradation resistance under the same operation condition, and has a wide application prospect. 本发明属于环保工程和生态保护工程领域，具体涉及一种二氧化碳复合吸收剂；该二氧化碳复合吸收剂由促进剂、作为活化剂的醇胺以及溶剂组成；所述促进剂为三(二甲胺基丙基)六氢三嗪。本发明的二氧化碳复合吸收剂CO2负荷和循环吸收容量高，具有较快的吸收速率，增强了传质效率，在相同的操作条件下，吸收剂的CO2捕集性能和抗降解性能都有较大提高，具有广阔的应用前景。