Correlation of Vapor–Liquid Equilibria of Binary Systems Containing Carboxylic Acid by Using Wilson Equation with Parameters Estimated from Pure-Component Properties

Shigetoshi Kobuchi; Kei Takakura; Setsuko Yonezawa; Kenji Fukuchi; Yasuhiko Arai

doi:10.1252/jcej.12we191

Physical Properties and Physical Chemistry

Correlation of Vapor–Liquid Equilibria of Binary Systems Containing Carboxylic Acid by Using Wilson Equation with Parameters Estimated from Pure-Component Properties

Shigetoshi Kobuchi, Kei Takakura, Setsuko Yonezawa, Kenji Fukuchi, Yasuhiko Arai

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Keywords: Wilson Parameter, Vapor–Liquid Equilibrium, Binary System, Carboxylic Acid, Solubility Parameter, Molar Volume, Pure-Component Property

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2013 Volume 46 Issue 2 Pages 100-106

DOI https://doi.org/10.1252/jcej.12we191

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Abstract

A simple method for estimating the Wilson parameters from pure component properties alone previously proposed has been adopted to predict the vapor–liquid equilibria of binary systems containing carboxylic acids such as acetic acid. Carboxylic acid vapors are characterized by the presence of large amounts of dimers. The binary mixtures of non-associating substance+carboxylic acid and carboxylic acid+carboxylic acid have been studied. The prediction performances obtained are examined and discussed.

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