Vapor-Liquid Equilibrium Experiment and Thermodynamic Model Correlation for Ethanol plus Isopropyl Acetate with Ionic Liquid at 101.3 kPa

被引：4
|
作者：
Hu, Xiwei [1 ]
Zhu, Jiaming [1 ]
Li, Feihu [1 ]
Guo, Jin [1 ]
Li, Qunsheng [1 ]
Zhao, Hongkang [1 ]
机构：
[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
来源：
JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2023年 / 68卷 / 06期
基金：
中国国家自然科学基金;
关键词：
EXTRACTIVE DISTILLATION; SEPARATION; SYSTEM; VLE;
D O I：
10.1021/acs.jced.2c00778
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Due to the azeotrope between ethanol and isopropyl acetate,separatingthem and meeting the separation requirements is challenging. In thisstudy, ethylene glycol (EG), dimethyl sulfoxide (DMSO), and 1-butyl-3-methyl-imidazoleacetate ([BMIM]-[OAC]) were selected as entrainers, and the vapor-liquidequilibrium data of ethanol-isopropyl acetate, ethanol + isopropylacetate + EG, ethanol + isopropyl acetate + DMSO, and ethanol-isopropylacetate + [BMIM]-[OAC] were measured at atmospheric pressure. The thermodynamicNRTL model was able to fit these experimental results. It showed thatthe model could correctly describe the influence of these entrainerson this azeotropic system. According to the VLE data, three entrainerscaused different effects on the relative volatility of ethanol-isopropylacetate. The azeotropic point would be completely eliminated, whilethe mole fraction of [BMIM]-[OAC] added is 0.1, which performs betterthan EG and DMSO.
引用
收藏
页码：1358 / 1366
页数：9
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