Mutual solubility-interfacial tension relationship in aqueous binary and ternary hydrocarbon systems

被引：15

作者：

Bahramian, Alireza ^{[1
]}

机构：

[1] Univ Tehran, Inst Petr Engn, Tehran 113654563, Iran

来源：

FLUID PHASE EQUILIBRIA | 2009年 / 285卷 / 1-2期

关键词：

Water-hydrocarbon; Liquid-liquid interface; Thermodynamics; Interfacial tension; Regular solution; LIQUID-LIQUID-SYSTEMS; PLUS METHANOL; UNIQUAC METHOD; WATER-SYSTEMS; 303.15; K; SURFACE; PREDICTION; TEMPERATURE; PRESSURE; MIXTURE;

D O I：

10.1016/j.fluid.2009.02.013

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

It is shown that the liquid-liquid interfacial tension in binary and ternary aqueous-hydrocarbon systems at any temperature can be determined by knowing the molar compositions of the bulk fluid phases and a system-dependent constant. The system-dependent constant has been found to be related to Saturation adsorption. Based on these findings,a new equation has been proposed for reliable prediction of interfacial tension in aqueous-organic systems. The model is simple to use and reasonably describes the interfacial tension of binary water-hydrocarbon mixtures and some ternary aqueous-organic systems. The new equation shows an apparent inconsistency near the critical point which is explained using the underlying mono-molecular layer assumption. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：24 / 29

页数：6

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