混合醇胺溶液吸收烟气中CO_2

Research on CO_2 Absorption of Flue Gas in the Mixed Alcohol Amine Solutions

研究了温度、CO2含量与吸收液浓度对醇胺溶液吸收CO2性能的影响,并比较了不同复配体系对二异丙醇胺(MDEA)的活化效果。结果表明,醇胺溶液对CO2的吸收速率随反应时间的增加而降低,随吸收温度的升高而增强,以40℃为宜;吸收反应速率均随气、液相反应物含量增大而增强;混合体系对MDEA的活化效果为二乙烯二胺最好,乙醇胺最差。

In this paper,the influence of temperature,CO2 content and absorption liquid concentration on the performance of alcohol amine solution absorbing CO2 was studied,also the effects of MDEA activation by different complex systems were compared,and the results showed that CO2 absorption rate of alcohol amine solution decreased with the increasing of reaction time and enhanced with the increasing of absorption temperature,the appropriate temperature was 40 ℃;Absorption reaction rate enhanced with the increasing of gas and liquid phase reagent content;The effects of MDEA activation by different complex systems was DETA the best and MEA the worst.