A Comparative Study on Water and Ethanol Separation Mixture by Different Solvents: New Experimental and Correlation Data

IF 1.4 Q3 CHEMISTRY, MULTIDISCIPLINARY Physical Chemistry Research Pub Date : 2021-12-01 DOI:10.22036/PCR.2021.274620.1890

O. Bacha, O. Baka, A. Hasseine, M. Korichi, D. Selloum, A. Henni

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Abstract

This paper describes our interest on the ethanol separation and the enhancement of the obtained interaction parameters. The binodal curves and tie-lines data for the ternary systems (Water +Ethanol + 1-Octanol), (Water + Ethanol +4-Methyl-2-pentanone) and (Water + Ethanol + Ethyl Acetate) at 293.15K were investigated. These ternary systems follow a type-1 Liquid-Liquid equilibrium diagram. Furthermore, the extraction capabilities of these solvents in this study were tested using the separation factor (S) which was found greater than 1 in all ternary systems (S varying between 3.52 and 18.37). Besides, the values of the distribution coefficient (D) of ethanol were also not constant over the entire composition of the two-phase region (D values varied between 0.777 and 0.928), which confirms the extraction of ethanol. The ternary system (Water + Ethanol + Ethyl Acetate) was found to be the best option in terms of the distribution coefficient and separation factor. Othmer-Tobias and Hand plots have properly tested the reliability of the experimental tie-line data. In addition, non-random two-liquid model was used to correlate the experimental data, the model parameters were obtained using genetic algorithm, and there was a strong agreement between the experimental and calculated tie-lines with RMSD values below 1.72%.

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不同溶剂对水乙醇混合物分离的比较研究:新的实验和相关数据

本文介绍了我们对乙醇分离的兴趣和得到的相互作用参数的提高。研究了293.15K下三元体系(水+乙醇+ 1-辛醇)、(水+乙醇+4-甲基-2-戊酮)和(水+乙醇+乙酸乙酯)的双节曲线和联络线数据。这些三元体系遵循1型液-液平衡图。此外，本研究中使用分离因子(S)测试了这些溶剂的萃取能力，发现在所有三元体系中都大于1 (S在3.52和18.37之间变化)。此外，乙醇的分布系数(D)在两相区域的整个组成中也不是恒定的(D值在0.777 ~ 0.928之间)，这证实了乙醇的萃取作用。结果表明，水+乙醇+乙酸乙酯三元体系在分配系数和分离系数方面是最佳选择。other - tobias和Hand图已适当地检验了实验联络线数据的可靠性。采用非随机双液模型对实验数据进行关联，采用遗传算法获得模型参数，实验结果与计算结果吻合较好，RMSD值均在1.72%以下。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physical Chemistry Research CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

2.70

自引率

8.30%

发文量

期刊介绍： The motivation for this new journal is the tremendous increasing of useful articles in the field of Physical Chemistry and the related subjects in recent years, and the need of communication between Physical Chemists, Physicists and Biophysicists. We attempt to establish this fruitful communication and quick publication. High quality original papers in English dealing with experimental, theoretical and applied research related to physics and chemistry are welcomed. This journal accepts your report for publication as a regular article, review, and Letter. Review articles discussing specific areas of physical chemistry of current chemical or physical importance are also published. Subjects of Interest: Thermodynamics, Statistical Mechanics, Statistical Thermodynamics, Molecular Spectroscopy, Quantum Chemistry, Computational Chemistry, Physical Chemistry of Life Sciences, Surface Chemistry, Catalysis, Physical Chemistry of Electrochemistry, Kinetics, Nanochemistry and Nanophysics, Liquid Crystals, Ionic Liquid, Photochemistry, Experimental article of Physical chemistry. Mathematical Chemistry.