Simultaneous correlation of liquid-liquid equilibria for ternary systems and phase equilibria for constituent binary systems by modified new activity coefficient model

Yoshio Iwai, Koji Matsubara

Research output: Contribution to journalArticlepeer-review

Abstract

A concentration-dependent surface area parameter model (Iwai, Fluid Phase Equilibria, 465 (2018) 24–32) was modified to avoid the restriction conditions for the parameters of the pure components. The model is applied to correlate the ternary liquid-liquid equilibria and constituent binary phase equilibria with one set of binary parameters. The correlated results for both vapor-liquid equilibria and liquid-liquid equilibria obtained by the model are better than those of the NRTL and UNIQUAC models. The model simultaneously represents the experimental data at multiple temperatures of liquid-liquid and vapor-liquid equilibria with one set of parameters.

Original languageEnglish
Article number113411
JournalFluid Phase Equilibria
Volume556
DOIs
Publication statusPublished - May 2022

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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