Interfacial Mass Transfer in Quaternary Liquid-Liquid Systems

被引：0
|
作者：
Nagl R. [1 ]
Zeiner T. [1 ]
Zimmermann P. [1 ]
机构：
[1] Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, Inffeldgasse 25/C, Graz
来源：
Chemical Engineering and Processing - Process Intensification | 2022年 / 171卷
关键词：
Density Gradient Theory; Enrichment; Interfaces; Koningsveld-Kleintjens; Liquid-Liquid Extraction;
D O I：
10.1016/j.cep.2021.108501
中图分类号：
学科分类号：
摘要：
Interfacial properties such as interfacial mass transfer are essential for the design and optimization of industrial separation processes. In this work we investigate the interfacial behavior of the two quaternary systems water + toluene + ethanol + acetone and water + toluene + ethanol + tetrahydrofuran and the relation between interfacial enrichment and mass transfer. The Concentration Gradient Theory (CGT) is combined with the Koningsveld-Kleintjens (KK) model to calculate interfacial tension and interfacial concentration profiles. By expanding a recent study of ternary systems with ethanol, acetone or tetrahydrofuran as transferring components we demonstrate that interfacial mass transfer in quaternary systems can be modeled with CGT + KK in good accordance to experimental data by adjusting a single additional binary mobility coefficient. Moreover, the present study indicates a hint on a link between interfacial enrichment and interfacial mass transfer. © 2021 The Authors
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