Separation of ethyl acetate+ethanol+water system: Ionic liquids screening, vapor liquid equilibrium and process simulation

doi:10.16085/j.issn.1000-6613.2023-2272

Abstract

Abstract:

Ethyl acetate, ethanol and water can form a system with three binary and one ternary azeotropes. The aim of this study is to use ionic liquid (IL) as the extractant to break these azeotropes for effectively separating the ternary system. Based on the COSMO-RS model and the viscosity prediction model, selectivities, capacities and viscosities of 65 ILs were calculated. It was found that 1-butyl-3-methylimidazolium acetate ([BMIM][Ac]) was barged to the forefront as the extractant among 65 ILs. The vapor liquid equilibrium (VLE) experiments of ethyl acetate (1)+ethanol (2)+water (3)+selected IL (4) system were conducted. It was confirmed that the [BMIM][Ac] can effectively influence and break all the azeotropes in this system, proving the screening result. Correlation accuracies of the VLE data by the NRTL and UNIQUAC models were 1.69% and 2.20% of RMSDs, respectively. The slight errors emphasized the reliability of correlation results. The mechanism of separation for this ternary system with IL was qualitatively and quantitatively analyzed by quantum chemical calculations. It was showed that the [BMIM][Ac] formed weak hydrogen bond interactions with ethyl acetate (-8.22kcal/mol, 1kcal≈4.186kJ) and strong hydrogen bond interactions with ethanol and water (-15.83kcal/mol and -16.14kcal/mol, respectively). Based on the correlated model parameters, an extraction distillation process was simulated and optimized for separating the ethyl acetate+ethanol+water system with the selected IL as the extractant. It was achieved that the mass fractions of ethyl acetate, ethanol and water can all reach 0.999. The research result demonstrated the industrial feasibility of separating this ternary azeotropic system with [BMIM][Ac] as the extractant.

Key words: ionic liquids, azeotrope, extractive distillation, vapor liquid equilibria, mechanism analysis, simulation

摘要：

乙酸乙酯、乙醇和水体系能够形成三个二元和一个三元的共沸体系。本文旨在以离子液体（IL）为萃取剂打破这些共沸，实现该三元体系的有效分离。基于COSMO-RS模型和黏度预测模型，计算了65种ILs的选择性、溶解度和黏度，发现1-丁基-3-甲基咪唑醋酸盐（[BMIM][Ac]）是65种ILs中最符合要求的萃取剂。进行了乙酸乙酯（1）+乙醇（2）+水（3）+IL（4）的四元汽液相平衡（VLE）实验，证实[BMIM][Ac]能够打破所有共沸体系，验证了筛选结果。NRTL和UNIQUAC方程关联四元VLE数据的均方根误差分别为1.69%和2.20%，关联结果可靠。通过量化计算定性和定量分析了IL分离该三元体系的机理，表明[BMIM][Ac]与乙酸乙酯发生弱氢键作用（-8.22kcal/mol，1kcal≈4.186kJ），与乙醇和水分别发生强氢键作用（-15.83kcal/mol和-16.14kcal/mol）。基于方程关联所得参数，模拟并优化了以IL为萃取剂分离乙酸乙酯+乙醇+水体系的萃取精馏过程，显示乙酸乙酯、乙醇和水的产品纯度均可达到0.999。研究结果验证了[BMIM][Ac]作为萃取剂分离该三元共沸体系工业化可行性。

关键词: 离子液体, 共沸（混合）物, 萃取精馏, 汽液平衡, 机理分析, 模拟

CLC Number:

TQ028.3

LI Xin, WANG Wei, ZHANG Yu, XIE Qiuyu, YUAN Hao. Separation of ethyl acetate+ethanol+water system: Ionic liquids screening, vapor liquid equilibrium and process simulation[J]. Chemical Industry and Engineering Progress, 2025, 44(1): 75-85.

李鑫, 王维, 张羽, 谢湫钰, 袁昊. 分离乙酸乙酯+乙醇+水体系：离子液体筛选、汽液相平衡和过程模拟[J]. 化工进展, 2025, 44(1): 75-85.

Figures/Tables 15

参数	数值
d	-3.682
e	9.391
f	1.066
g	-0.012
h	0.018
i	-14.852

组分	r_i	q_i
乙酸乙酯	3.4786	3.1160
乙醇	2.1055	1.9720
水	0.9200	1.4000
[BMIM][Ac]	8.7838	5.2463

T/K	$x_{1}$	$y_{1}$	$γ_{1}$	$γ_{2}$
351.0	0.007	0.017	2.521	1.011
350.1	0.033	0.077	2.382	1.010
348.9	0.080	0.163	2.124	1.011
347.2	0.159	0.267	1.864	1.037
346.1	0.251	0.353	1.621	1.075
345.1	0.381	0.446	1.394	1.160
344.8	0.489	0.512	1.258	1.254
344.9	0.630	0.593	1.128	1.438
345.5	0.753	0.679	1.059	1.657
346.6	0.858	0.780	1.029	1.889
347.9	0.926	0.869	1.017	2.050
349.1	0.975	0.949	1.014	2.218

T/K	$x_{1}$	$y_{1}$	$γ_{1}$	$γ_{2}$
351.0	0.007	0.017	2.521	1.011
350.1	0.033	0.077	2.382	1.010
348.9	0.080	0.163	2.124	1.011
347.2	0.159	0.267	1.864	1.037
346.1	0.251	0.353	1.621	1.075
345.1	0.381	0.446	1.394	1.160
344.8	0.489	0.512	1.258	1.254
344.9	0.630	0.593	1.128	1.438
345.5	0.753	0.679	1.059	1.657
346.6	0.858	0.780	1.029	1.889
347.9	0.926	0.869	1.017	2.050
349.1	0.975	0.949	1.014	2.218

T/K	$x_{4}$	$x_{1}$	$x_{2}$	$y_{1}$	$y_{2}$
351.8	0.031	0.013	0.637	0.050	0.768
350.7	0.030	0.035	0.637	0.115	0.721
348.6	0.029	0.096	0.606	0.234	0.623
347.6	0.032	0.178	0.555	0.340	0.541
347.1	0.031	0.259	0.512	0.407	0.490
346.7	0.030	0.421	0.409	0.534	0.390
347.3	0.031	0.556	0.314	0.633	0.312
348.2	0.029	0.707	0.209	0.755	0.213
353.8	0.061	0.010	0.646	0.048	0.811
352.4	0.062	0.029	0.645	0.119	0.759
350.8	0.061	0.058	0.643	0.199	0.695
349.8	0.059	0.095	0.637	0.269	0.640
348.7	0.059	0.147	0.612	0.351	0.572
348.4	0.061	0.200	0.572	0.417	0.516
347.9	0.062	0.262	0.527	0.466	0.474
347.8	0.059	0.327	0.482	0.522	0.426
347.7	0.058	0.395	0.435	0.574	0.382
347.9	0.060	0.454	0.391	0.622	0.342
348.0	0.061	0.506	0.353	0.662	0.308
348.2	0.060	0.551	0.318	0.694	0.280
348.6	0.061	0.598	0.281	0.733	0.246
357.9	0.102	0.006	0.609	0.040	0.843
356.6	0.103	0.020	0.604	0.116	0.776
354.5	0.099	0.043	0.597	0.207	0.695
352.1	0.098	0.084	0.577	0.324	0.595
351.2	0.101	0.122	0.557	0.395	0.536
350.1	0.102	0.174	0.528	0.464	0.479
349.1	0.100	0.244	0.487	0.538	0.416
348.9	0.101	0.346	0.436	0.630	0.342
349.4	0.103	0.469	0.360	0.722	0.263

T/K	$x_{4}$	$x_{1}$	$x_{2}$	$y_{1}$	$y_{2}$
351.8	0.031	0.013	0.637	0.050	0.768
350.7	0.030	0.035	0.637	0.115	0.721
348.6	0.029	0.096	0.606	0.234	0.623
347.6	0.032	0.178	0.555	0.340	0.541
347.1	0.031	0.259	0.512	0.407	0.490
346.7	0.030	0.421	0.409	0.534	0.390
347.3	0.031	0.556	0.314	0.633	0.312
348.2	0.029	0.707	0.209	0.755	0.213
353.8	0.061	0.010	0.646	0.048	0.811
352.4	0.062	0.029	0.645	0.119	0.759
350.8	0.061	0.058	0.643	0.199	0.695
349.8	0.059	0.095	0.637	0.269	0.640
348.7	0.059	0.147	0.612	0.351	0.572
348.4	0.061	0.200	0.572	0.417	0.516
347.9	0.062	0.262	0.527	0.466	0.474
347.8	0.059	0.327	0.482	0.522	0.426
347.7	0.058	0.395	0.435	0.574	0.382
347.9	0.060	0.454	0.391	0.622	0.342
348.0	0.061	0.506	0.353	0.662	0.308
348.2	0.060	0.551	0.318	0.694	0.280
348.6	0.061	0.598	0.281	0.733	0.246
357.9	0.102	0.006	0.609	0.040	0.843
356.6	0.103	0.020	0.604	0.116	0.776
354.5	0.099	0.043	0.597	0.207	0.695
352.1	0.098	0.084	0.577	0.324	0.595
351.2	0.101	0.122	0.557	0.395	0.536
350.1	0.102	0.174	0.528	0.464	0.479
349.1	0.100	0.244	0.487	0.538	0.416
348.9	0.101	0.346	0.436	0.630	0.342
349.4	0.103	0.469	0.360	0.722	0.263

组分i	组分j	NRTL方程			UNIQUAC方程
组分i	组分j	δg_ij /R	δg_ji /R	α_ij	δg_ij /R	δg_ji /R
乙酸乙酯	乙醇	-68.10	361.22	0.4	-51.59	216.97
乙醇	水	201.12	222.61	0.3	549.34	-229.56
乙酸乙酯	水	403.80	4968.73	0.3	-146.53	6013.95
乙酸乙酯	[BMIM][Ac]	1428.80	296.38	0.4	-4944.73	-117.07
乙醇	[BMIM][Ac]	-1207.90	-869.18	0.4	-5499.16	-82.69
水	[BMIM][Ac]	-1313.00	-1263.40	0.4	-5800.52	-331.68
		RMSD=1.69%			RMSD=2.20%

References 48

1	MENG Dapeng, DAI Yao, XU Ying, et al. Energy, economic and environmental evaluations for the separation of ethyl acetate/ethanol/water mixture via distillation and pervaporation unit[J]. Process Safety and Environmental Protection, 2020, 140: 14-25.
2	ERNEST Flick W. Industrial solvents handbook[M]. 5th ed. New Jersey: Noyes Data Corporation, 1998: 818-819.
3	TOTH Andras Jozsef. Comprehensive evaluation and comparison of advanced separation methods on the separation of ethyl acetate-ethanol-water highly non-ideal mixture[J]. Separation and Purification Technology, 2019, 224: 490-508.
4	李群生, 王亚茹, 文放. 乙醇-水体系分离提纯过程新技术的研究[J]. 化工进展, 2015, 34(12): 4179-4184.
	LI Qunsheng, WANG Yaru, WEN Fang. Research on the new technology of ethanol-water distillation[J]. Chemical Industry and Engineering Progress, 2015, 34(12): 4179-4184.
5	徐东芳, 胡佳静, 王丽丽, 等. 变压精馏分离乙醇-氯仿共沸物的动态特性[J]. 化工进展, 2016, 35(4): 1242-1249.
	XU Dongfang, HU Jiajing, WANG Lili, et al. Dynamic characteristics of pressure-swing distillation for ethanol-chloroform separation[J]. Chemical Industry and Engineering Progress, 2016, 35(4): 1242-1249.
6	MA Yixin, CUI Peizhe, WANG Yongkun, et al. A review of extractive distillation from an azeotropic phenomenon for dynamic control[J]. Chinese Journal of Chemical Engineering, 2019, 27(7): 1510-1522.
7	张志刚, 张德彪, 张亲亲, 等. 基于COSMO-RS方法筛选离子液体分离乙酸乙酯-乙腈共沸物[J]. 化工学报, 2019, 70(1): 146-153.
	ZHANG Zhigang, ZHANG Debiao, ZHANG Qinqin, et al. Screening of ionic liquids for separation of ethyl acetate-acetonitrile azeotrope based on COSMO-RS [J]. CIESC Journal, 2019, 70(1): 146-153.
8	GERBAUD Vincent, Ivonne RODRIGUEZ-DONIS, HEGELY Laszlo, et al. Review of extractive distillation. Process design, operation, optimization and control[J]. Chemical Engineering Research and Design, 2019, 141: 229-271.
9	DUAN Cong, LI Chunli. Novel energy-saving methods to improve the three-column extractive distillation process for separating ethyl acetate and ethanol using furfural[J]. Separation and Purification Technology, 2021, 272: 118887.
10	YANG Ao, ZOU Hechen, I-Lung CHIEN, et al. Optimal design and effective control of triple-column extractive distillation for separating ethyl acetate/ethanol/water with multiazeotrope[J]. Industrial & Engineering Chemistry Research, 2019, 58(17): 7265-7283.
11	AYUSO Miguel, Andrés CAÑADA-BARCALA, LARRIBA Marcos, et al. Enhanced separation of benzene and cyclohexane by homogeneous extractive distillation using ionic liquids as entrainers[J]. Separation and Purification Technology, 2020, 240: 116583.
12	李文秀, 张羽, 曹颖, 等. 离子液体用于四氢呋喃-乙醇-水三元共沸物系分离的研究[J]. 化工学报, 2020, 71(4): 1676-1682.
	LI Wenxiu, ZHANG Yu, CAO Ying, et al. Study on separation of tetrahydrofuran-ethanol-water ternary azeotropesystem by ionic liquid[J]. CIESC Journal, 2020, 71(4): 1676-1682.
13	李文秀, 张琦, 张亲亲, 等. 含离子液体乙腈-正丙醇体系的等压汽液平衡[J]. 化工学报, 2015, 66(S1): 38-44.
	LI Wenxiu, ZHANG Qi, ZHANG Qinqin, et al. Isobaric vapor-liquid equilibrium for system of acetonitrile-n-propanol system containing ionic liquids[J]. CIESC Journal, 2015, 66(S1): 38-44.
14	ZHANG Lianzheng, WANG Jie, YANG Lin, et al. Separation of isopropyl alcohol+isopropyl acetate azeotropic mixture: Selection of ionic liquids as entrainers and vapor-liquid equilibrium validation[J]. Chinese Journal of Chemical Engineering, 2022, 50: 326-334.
15	张清珍, 代成娜, 韩敬莉, 等. 萃取蒸馏脱除油品中硫的过程模拟与优化[J]. 化工进展, 2016, 35(8): 2553-2560.
	ZHANG Qingzhen, DAI Chengna, HAN Jingli, et al. Desulfurization of oil products by extractive distillation: Simulation and optimization[J]. Chemical Industry and Engineering Progress. 2016, 35(8): 2553-2560.
16	高腾飞, 李国选, 雷志刚. 从催化裂化柴油中分离联苯的溶剂筛选: 实验和计算热力学[J]. 化工学报, 2022, 73(12): 5314-5323.
	GAO Tengfei, LI Guoxuan, LEI Zhigang. Solvents selection for separation of biphenyl from FCC diesel: Experimental and computational thermodynamics[J]. CIESC Journal, 2022, 73(12): 5314-5323.
17	SALLEH M. Zulhaziman M, HADJ-KALI Mohamed K, HASHIM Mohd A,et al. Ionic liquids for the separation of benzene and cyclohexane - COSMO-RS screening and experimental validation[J]. Journal of Molecular Liquids, 2018, 266: 51-61.
18	MALIK Huzaifa, KHAN Huma Warsi, HASSAN SHAH Mansoor Ul, et al. Screening of ionic liquids as green entrainers for ethanol water separation by extractive distillation: COSMO-RS prediction and aspen plus simulation[J]. Chemosphere, 2022, 311(Pt 2): 136901.
19	VERMA Vijay Kumar, BANERJEE Tamal. Ionic liquids as entrainers for water+ethanol, water+2-propanol, and water+THF systems: A quantum chemical approach[J]. The Journal of Chemical Thermodynamics, 2010, 42(7): 909-919.
20	Vicent ORCHILLÉS A, MIGUEL Pablo J, LLOPIS Francisco J, et al. Isobaric vapor-liquid equilibria for the extractive distillation of ethanol+water mixtures using 1-ethyl-3-methylimidazolium dicyanamide[J]. Journal of Chemical & Engineering Data, 2011, 56(12): 4875-4880.
21	TSANAS Christos, TZANI Andromachi, PAPADOPOULOS Achilleas, et al. Ionic liquids as entrainers for the separation of the ethanol/water system[J]. Fluid Phase Equilibria, 2014, 379: 148-156.
22	GE Yun, ZHANG Lianzhong, YUAN Xingcai, et al. Selection of ionic liquids as entrainers for separation of (water+ethanol)[J]. The Journal of Chemical Thermodynamics, 2008, 40(8): 1248-1252.
23	ANDREATTA Alfonsina E, CHARNLEY Matthew P, BRENNECKE Joan F. Using ionic liquids to break the ethanol-ethyl acetate azeotrope[J]. ACS Sustainable Chemistry & Engineering, 2015, 3(12): 3435-3444.
24	LI Rui, CUI Xianbao, ZHANG Ying, et al. Vapor-liquid equilibrium and liquid-liquid equilibrium of ethyl acetate+ethanol+1-ethyl-3-methylimidazolium acetate[J]. Journal of Chemical & Engineering Data, 2012, 57(3): 911-917.
25	LI Qunsheng, ZHANG Jiguo, LEI Zhigang, et al. Isobaric vapor-liquid equilibrium for ethyl acetate plus ethanol+1-ethyl-3-methylimidazolium tetrafluoroborate[J]. Journal of Chemical and Engineering Data, 2009, 54(2): 193-197.
26	Vicent ORCHILLÉS A, MIGUEL Pablo J, VERCHER Ernesto, et al. Isobaric vapor-liquid equilibria for ethyl acetate+ethanol+1-ethyl-3-methylimidazolium trifluoromethanesulfonate at 100 kPa[J]. Journal of Chemical and Engineering Data, 2007, 52(6): 2325-2330.
27	ZHANG Lianzhong, YUAN Xingcai, QIAO Bingbang, et al. Isobaric vapor-liquid equilibria for water+ethanol+ethyl acetate+1-butyl-3-methylimidazolium acetate at low water mole fractions[J]. Journal of Chemical and Engineering Data, 2008, 53(7): 1595-1601.
28	MA Shoutao, SHANG Xianyong, LI Lumin, et al. Energy-saving thermally coupled ternary extractive distillation process using ionic liquids as entrainer for separating ethyl acetate-ethanol-water ternary mixture[J]. Separation and Purification Technology, 2019, 226: 337-349.
29	PAN Qi, SHANG Xianyong, MA Shoutao, et al. Control comparison of extractive distillation configurations for separating ethyl acetate-ethanol-water ternary mixture using ionic liquids as entrainer[J]. Separation and Purification Technology, 2020, 236: 116290.
30	ZHANG Yu, PAN Yanqiu, ZHANG Tao, et al. A comprehensive method of ionic liquid screening and experimental verification for simultaneous separation of multiple sulfides from oil[J]. Separation and Purification Technology, 2023, 315: 123714.
31	FREIRE Mara G, TELES Ana Rita R, ROCHA Marisa A A, et al. Thermophysical characterization of ionic liquids able to dissolve biomass[J]. Journal of Chemical and Engineering Data, 2011, 56(12): 4813-4822.
32	雷志刚, 王洪有, 许峥, 等. 萃取精馏的研究进展[J]. 化工进展, 2001, 20(9): 6-9.
	LEI Zhigang, WANG Hongyou, XU Zheng, et al. A review of extractive distillation[J]. Chemical Industry and Engineering Progress, 2001, 20(9): 6-9.
33	EIDEN Philipp, BULUT Safak, Tobias KÖCHNER, et al. In silico predictions of the temperature-dependent viscosities and electrical conductivities of functionalized and nonfunctionalized ionic liquids[J]. Journal of Physical Chemistry B, 2011, 115(2): 300-309.
34	WANG Ping, XU Dongmei, YAN Peisong, et al. Separation of azeotrope (ethanol and ethyl methyl carbonate) by different imidazolium-based ionic liquids: Ionic liquids interaction analysis and phase equilibrium measurements[J]. Journal of Molecular Liquids, 2018, 261: 89-95.
35	Marek ŁUSZCZYK, MALANOWSKI Stanislaw K. Vapor-liquid equilibrium in α‍-methylbenzenemethanol + water[J]. Journal of Chemical and Engineering Data, 2006, 51(5): 1735-1739.
36	HONG Guibing, LEE Ming-Jer, LIN Ho-Mu. Multiphase coexistence for mixtures containing water, 2-propanol, and ethyl acetate[J]. Fluid Phase Equilibria, 2002, 203(1/2): 227-245.
37	YANG Tzu-Huai, JESSIE LUE Shingjiang. UNIQUAC and UNIQUAC-HB models for the sorption behavior of ethanol/water mixtures in a cross-linked polydimethylsiloxane membrane[J]. Journal of Membrane Science, 2012, 415: 534-545.
38	SUN Guangming, HUANG Weijia, ZHENG Danxing, et al. Vapor-liquid equilibrium prediction of ammonia-ionic liquid working pairs of absorption cycle using UNIFAC model[J]. Chinese Journal of Chemical Engineering, 2014, 22(1): 72-78.
39	LU Tian, CHEN Qinxue. Independent gradient model based on Hirshfeld partition: A new method for visual study of interactions in chemical systems[J]. Journal of Computational Chemistry, 2022, 43(8): 539-555.
40	LU Tian, CHEN Feiwu. Multiwfn: A multifunctional wavefunction analyzer[J]. Journal of Computational Chemistry, 2012, 33(5): 580-592.
41	HUMPHREY William, DALKE Andrew, SCHULTEN Klaus. VMD: Visual molecular dynamics[J]. Journal of Molecular Graphics, 1996, 14(1): 33-38.
42	VALDERRAMA José O, SANGA Wilson W, LAZZÚS Juan A. Critical properties, normal boiling temperature, and acentric factor of another 200 ionic liquids[J]. Industrial & Engineering Chemistry Research, 2008, 47(4): 1318-1330.
43	LUYBEN William L. Distillation design and control using Aspen^TM simulation[M]. New Jersey: John Wiley & Sons Inc, 2013: 87-89.
44	LUYBEN William L, YU Cheng-Ching. Reactive distillation design and control[M]. New Jersey: John Wiley & Sons Inc, 2008: 42-43.
45	WISNIAK Jaime, ORTEGA Juan, Luis FERNÁNDEZ. A fresh look at the thermodynamic consistency of vapour-liquid equilibria data[J]. The Journal of Chemical Thermodynamics, 2017, 105: 385-395.
46	YUE Kun, ZHOU Guowei. Isobaric vapor-liquid equilibrium for ethyl acetate+ethanol with ionic liquids [MMIM][DMP] and [OMIM][PF6] as entrainers[J]. Journal of Molecular Liquids, 2022, 348: 118404.
47	CHEN Zhengrun, DAI Yasen, CHI Shuxiu, et al. Analysis and intensification of energy saving process for separation of azeotrope by ionic liquid extractive distillation based on molecular dynamics simulation[J]. Separation and Purification Technology, 2021, 276: 119254.
48	ZEESHAN Muhammad, NOZARI Vahid, KESKIN Seda, et al. Structural factors determining thermal stability limits of ionic liquid/MOF composites: Imidazolium ionic liquids combined with CuBTC and ZIF-8[J]. Industrial & Engineering Chemistry Research, 2019, 58(31): 14124-14138.

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