化工学报2012，Vol.63Issue(10)：3152-3157,6.DOI:10.3969/j.issn.0438-1157.2012.10.021
1-氨丙基-3-甲基咪唑溴功能型离子液体对CO2的吸收性能
Carbon dioxide absorption in 1-aminopropyl-3-methylimidazolium bromide aqueous solutions
摘要
Abstract
Experiments for the solubility and phase equilibrium of carbon dioxide in aqueous solution of 1-aminopropyl-3-methylimidazolium bromide ( [APMIm][Br]) with three water concentrations (16.04%, 31. 59% and 60. 84%, mass fraction) , at 278. 15-348. 15 K and pressure up to 6. 5 Mpa were performed by using a high-pressure reaction cell based on an isochoric saturation technique. The results indicated that water concentration could greatly enhance the absorption capacity and increase the absorption rate of carbon dioxide in [APMIm][Br] aqueous solution. For the 60.84% aqueous IL solution at 5℃ and 120 kPa, CO2 solubility was up to 0. 459 mol CO2 · (mol IL)-1 , close to the theoretical maximum absorption capacity of 0. 5 mol CO2 · (mol IL)-1. Under a higher pressure (3. 9.Mpa), maximum CO2 absorption was 1. 894 mol CO2 · (mol IL)-1.关键词
二氧化碳/溶解度/离子液体/1-氨丙基-3-甲基咪唑溴盐Key words
carbon dioxide/ solubility/ ionic liquid/ [APMIm][Br]分类
资源环境引用本文复制引用
阳涛,毕崟,郭开华..1-氨丙基-3-甲基咪唑溴功能型离子液体对CO2的吸收性能[J].化工学报,2012,63(10):3152-3157,6.基金项目
国家自然科学基金项目(51076169) （51076169）
广东省教育厅液化天然气及低温技术重点实验室项目(39000-3211101). （39000-3211101）
