文献类型：期刊文献

英文题名：Extractive Distillation with Ionic Liquid Entrainers for the Separation of Acetonitrile and Water

作者：Li, Jinlong[1,2];Li, Tingting[3,4];Peng, Changjun[3,4];Liu, Honglai[3,4]

机构：[1]Changzhou Univ, Jiangsu Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Peoples R China;[2]Changzhou Univ, Sch Petrochem Engn, Changzhou 213164, Peoples R China;[3]East China Univ Sci & Technol, State Key Lab Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[4]East China Univ Sci & Technol, Dept Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2019

卷号：58

期号：14

起止页码：5602

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20191606798285);WOS:【SCI-EXPANDED(收录号:WOS:000464769200026)】；

基金：Financial support for this work was provided by the National Basic Research Program of China (2015CB251401) and the National Natural Science Foundation of China (nos. 21878025, 21776069, 21476070).

语种：英文

外文关键词：Acetonitrile - Distillation - Thermoanalysis - Atmospheric pressure - Ethylene glycol - Mixtures - Ethylene

摘要：Ionic liquids (ILs) of 1-ethyl-3-methylimidazolium acetate ([EMIM][OAC]), 1-ethyl-3-methylimidazolium proline ([EMIM][PRO]), and N,N,N-dimethyl-butylethanol amine glycolic acid ([N1,1,4C2OH][GAC]) are selected as entrainers for the extractive distillation to separate the mixture of acetonitrile and water based on the COSMO-RS method. The isobaric vapor-liquid equilibrium of ternary mixtures containing ILs at atmospheric pressure is determined, verifying that the used ILs can break the azeotropy of acetonitrile and water. On the basis of the thermodynamic analysis, a typical extractive distillation process is designed with Aspen Plus to evaluate the competitiveness of IL entrainers in separation performance. Significant savings of entrainer and energy, in which the solvent ratios in moles reduce from 0.94 to 0.09, 0.12, and 0.12 and the overall heat duties on the reboiler decrease 24.9, 17.5, and 15.4% for [EMIM] [OAC], [EMIM] [PRO], and [N1,1,4C2OH] [GAG], respectively, can be achieved compared with those of ethylene glycol used as the entrainer.