氨基功能型离子液体在常温常压下对CO2具有较强的吸收选择性能，在分离固定CO2方面具有较好的应用前景。合成了4种氨基功能型离子液体，对产物进行了IR和1H NMR表征，探究了这些功能型离子液体的CO2吸收性能及再生性能。结果表明，4种氨基功能型离子液体均具有强于常规型离子液体的CO2吸收性能，再生性能良好，可循环使用；离子液体的CO2溶解度受黏度影响显著，随吸收温度的升高而降低，随吸收压力的升高，吸收剂浓度的增加而增大；强化传质能提高再生效率，多次的再生对离子液体的吸收性能没有明显影响。%Amino-functionalized task-specific ionic liquids are thought to have good application prospects in terms of CO2 fixation and separation , due to their strong CO2 absorption with selectivity under ambient conditions. In this study, four task-specific ionic liquids were synthesized, with their structures and properties characterized by IR,1H NMR. The performances of these four task-specific ionic liquids in terms of CO2 absorption and regeneration were investigated. It was found that these four task-specific ionic liquids are supervisor to traditional ionic liquids in terms of CO2 absorption. In addition, these four task-specific ionic liquids showed excellent regeneration performance, which indicated that they could be reused for CO2 absorption. The solubility of CO2 in ionic liquids was affected significantly by the viscosity, decreased by increasing the temperature, increased by increasing the pressure and absorbent concentration. Enhanced mass transfer can improve the regeneration efficiency. However, no significant effect on the absorption properties of ionic liquids was observed after multiple regenerations.
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