新型氨基酸型离子液体的制备及性能研究  

Study on the Preparation and Performance of a New Type of Amino Acid Ionic Liquid

作　　者：杜一萌 刘明星 杨艺 王强[1] 丁保宏 DU Yi-meng;LIU Ming-xing;YANG Yi;WANG Qiang;DING Bao-hong(Petrochemical College,Liaoning Shihua University,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学石油化工学院,抚顺113001

出　　处：《当代化工》2022年第4期795-799,共5页Contemporary Chemical Industry

基　　金：福建省应用技术协同创新中心项目(项目编号:2019010294)。

摘　　要：近年来,随着煤、石油和天然气等能源被大量开发与使用,其燃烧释放出的大量NO、CH_(4)、CO_(2)和SO_(2)等气体引起温室效应,导致全球变暖,其中以CO_(2)的影响最为恶劣。离子液体是对环境友好的理想有机溶剂,不仅对CO_(2)具有十分良好的溶解性,还具有很高的选择分离性,逐渐成为炙手可热的研究对象。合成了一种新型的氨基酸功能化离子液体并对其进行了表征,探究了氨基酸离子液体在不同温度、压强和质量分数情况下对CO_(2)的吸收性能,探讨了其循环再生稳定性。当温度为30℃、压强为1 MPa时、质量分数为20%的氨基酸离子液体对CO_(2)的吸收量达到1.30 mol·mol^(-1)。同时,1-氨乙基-3-甲基咪唑丙氨酸盐[C_(2)NH_(2)MIm][Ala]具备良好的循环再生性能,经过7次解吸再生后,其对CO_(2)的吸收率为89.4%。In recent years,as coal,oil and natural gas and other energy sources have been developed and used in large quantities,their combustion releases a large amount of NO,CH_(4),CO_(2),SO_(2) and other gases,causing the greenhouse effect,leading to global warming,of which CO_(2) has the worst impact.Ionic liquids are environmentally friendly ideal organic solvents.They not only have very good solubility for CO_(2),but also have high selective separation properties,and have gradually become a hot research object.In this paper,a new type of amino acid functionalized ionic liquid was synthesized and characterized.The effect of amino acid ionic liquid on CO_(2) absorption performance under different temperature,pressure and mass fraction conditions was explored,and its cyclic regeneration stability was discussed.When the temperature was 30℃and the pressurewas 1 MPa,the absorption of CO_(2) by the amino acid ionic liquid with a mass fraction of 20%reached 1.30 mol·mol^(-1).At the same time,1-aminoethyl-3-methylimidazolium alanine salt[C_(2)NH_(2)MIm][Ala]had good recycling performance.After seven desorption and regeneration,its CO_(2) absorption rate was 89.4%.

关 键 词：氨基酸离子液体 吸收 二氧化碳 循环再生 

分 类 号：O621.251[理学—有机化学]