化工进展2017，Vol.36Issue(4)：1209-1216,8.DOI:10.16085/j.issn.1000-6613.2017.04.008
离子交换树脂法回收水中离子液体
Recovery of ionic liquid from aqueous solution by ion-exchange resin
摘要
Abstract
The ionic liquid enhanced bitumen recovery from oil sands has been considered a promising process for the unconventional oil production. However,the recovery of ionic liquid from the residual solids is a challenge due to the high energy consumption if the direct distillation is applied. A new technology was proposed to pretreat the ionic liquids solution with ion-exchange resins (AMBERJET 1200Na). The concentrated ionic liquid was further separated by distillation. The optimal operational conditions were obtained by adjusting parameters of adsorption and desorption. The mechanism of the adsorption process was also analyzed. To confirm the above results,the real ionic liquids solution obtained from the water washing was applied as sample which was processed under the above optimal conditions. The results showed that the efficiencies of adsorption,desorption and recovery were over 97%,93% and 91%,respectively when 5g resin dosage was used to treat the ionic liquid solution (10g/L) at 293K for the adsorption and 333K for desorption. Finally,it was found that this process could save energy by 45% compared with the direct distillation under laboratory conditions.关键词
离子液体/离子交换/吸附/脱附/回收Key words
ionic liquids/ion exchange/adsorption/desorption/recovery分类
化学化工引用本文复制引用
隋红,牛雅琪,李鑫钢,何林..离子交换树脂法回收水中离子液体[J].化工进展,2017,36(4):1209-1216,8.基金项目
国家自然科学基金项目(41471258). （41471258）
