石油化工2019，Vol.48Issue(12)：1242-1247,6.DOI:10.3969/j.issn.1000-8144.2019.12.009
甲苯+乙醇+1-癸基-3-甲基咪唑醋酸盐物系等压气液相平衡数据的测定及关联
Determination and correlation of isobaric vapor-liquid equilibrium data for toluene+ethanol+1-decyl-3-methylimidazolium acetate ternary system
摘要
Abstract
Isobaric vapor-liquid equilibrium(VLE) data for the toluene+ethanol+1-decyl-3-methylimidazolium acetate([C10MIM][OAc]) ternary system were measured at 101.3 kPa. The VLE data were correlated with the NRTL model in Aspen software,and the equation parameters were obtained by regression. [C10MIM][OAc] had a significant salting out effect on toluene. The higher content of [C10MIM][OAc] ,the more obvious the effect. The azeotropy of toluene-ethanol system completely disappeared with the [C10MIM][OAc] mole fraction reaching 0.15. The NRTL model calculation showed that the minimum mole fraction of [C10MIM][OAc] for stopping the toluene-ethanol system azeotropy was 0.139 7. Therefore,[C10MIM][OAc] can be used as an entrainer for the extractive distillation of the toluene-ethanol azeotrope system.关键词
甲苯/乙醇/离子液体/气液相平衡/NRTL模型Key words
toluene/ethanol/ionic liquid/vapor-liquid equilibrium/NRTL model分类
化学化工引用本文复制引用
李文秀,潘成桥,曹颖,张弢..甲苯+乙醇+1-癸基-3-甲基咪唑醋酸盐物系等压气液相平衡数据的测定及关联[J].石油化工,2019,48(12):1242-1247,6.基金项目
国家自然科学基金项目(21576116). （21576116）
