Vapor–Liquid Equilibria of Water + Alkylimidazolium-Based Ionic Liquids: Measurements and Perturbed-Chain Statistical Associating Fluid Theory Modeling

2014 ◽  
Vol 53 (9) ◽  
pp. 3737-3748 ◽  
Author(s):  
Helena Passos ◽  
Imran Khan ◽  
Fabrice Mutelet ◽  
Mariana B. Oliveira ◽  
Pedro J. Carvalho ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Statistical Associating Fluid Theory ◽  
Fluid Theory ◽  
Vapor Liquid Equilibria ◽  
Vapor Liquid

Phase Equilibria for CO2-Ethanol Mixtures by Perturbed-Chain Statistical Associating Fluid Theory

2013 ◽  
Vol 411-414 ◽  
pp. 2979-2982
Author(s):  
Song Po Yang ◽  
Hong Mei Wang ◽  
Dong Fu
Keyword(s):  
Phase Equilibria ◽  
Triple Point ◽  
Binary Interaction ◽  
Statistical Associating Fluid Theory ◽  
Influence Of Temperature ◽  
Point Pressure ◽  
Binary Interaction Parameters ◽  
Fluid Theory ◽  
Temperature And Pressure ◽  
Vapor Liquid Equilibria

The perturbed-chain statistical associating fluid theory (PC-SAFT) is used to correlate and predict the phase equilibria and the triple point pressure of CO2 and ethanol binary mixtures. The binary interaction parameters (kij) are regressed by fitting to the experimental data of mixtures. The vapor-liquid equilibria and liquid-liquid equilibria of the mixtures are investigated and the influence of temperature and pressure on the phase equilibria and the triple point pressures is demonstrated. Our results show that the pressure dependent kij can describe the phase equilibria of CO2- ethanol mixtures quantitatively well.

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