Activity Coefficients from an Equation of State: Novel Approach for Fast Phase Equilibrium Calculations

2021 ◽  
Author(s):  
Walter G. Chapman ◽  
Wael A. Fouad
Keyword(s):  
Phase Equilibrium ◽  
Equation Of State ◽  
Activity Coefficients ◽  
Fast Phase ◽  
Novel Approach ◽  
Equilibrium Calculations

Predicting and Calculating Complex Phase Equilibrium in Supercritical Fluid Systems with a New Technique

1995 ◽  
Vol 60 (2) ◽  
pp. 188-210 ◽  
Author(s):  
Roumiana P. Stateva
Keyword(s):  
Phase Equilibrium ◽  
Equation Of State ◽  
Supercritical Fluid ◽  
New Technique ◽  
Complex Phase ◽  
Cubic Equation ◽  
Fluid Systems ◽  
Liquid Systems ◽  
A New Technique ◽  
Equilibrium Calculations

A general approach to multiphase equilibrium calculations with particular application to vapour-liquid-liquid and liquid-liquid-liquid systems is presented. The capabilities of the new technique to correctly predict and calculate complex phase equilibrium are tested on five highly non-ideal systems, relevant to supercritical fluid extraction. The thermodynamic models applied are the recently proposed MHV2 model and the Redlich-Kwong-Soave cubic equation of state.

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