Thermodynamic Model for High Pressure Phase Behavior of Carbon Dioxide in Several Physical Solvents at Different Temperatures
Main Article Content
Abstract
In the present study a thermodynamic model for prediction of gas-liquid equilibrium at high pressures and different temperatures prepared for the binary systems of carbon dioxide (1) with each of the one of the liquid physical solvents (2) (sulfolane, n-methyl-2-pyrrolidone and propylene carbonate) using Peng-Robenson equation of state (PR-EOS) with different mixing rules to show the effect of the type of mixing rule used. Comparison of the experimental phase equilibrium data in the literature with the results of the model showed very good representation for some mixing rules and good for the others.
Metrics
Article Details

This work is licensed under a Creative Commons Attribution 4.0 International License.
THIS IS AN OPEN ACCESS ARTICLE UNDER THE CC BY LICENSE http://creativecommons.org/licenses/by/4.0/
Plaudit
References
Murrieta-Guevara F.; Romero- Mrtinez.,A. and Terjo A. ; 1988. Solubilities of carbon dioxide and hydrogen sulfide in propylen carbonate, N-methylpyrrolidone, and sulfolane. Fluid phase Equilibria, 44:105-115. DOI: https://doi.org/10.1016/0378-3812(88)80106-7
Jou, F. Y. ;Deshmukh, R. D.; Otto F.D. and Mather, A. E.; 1990. Solubility of hydrogen sulfide, carbon dioxide, methane, and ethane in sulfolane. Fluid phase Equilibria, 56:313-324. DOI: https://doi.org/10.1016/0378-3812(90)85111-M
Kassim, D. M.; Zainel, H. A.; Al- Asaf, S. A. and Talib, E. K.;1988. The temperature dependence of the solubility of carbon dioxide in several extraction solvents. Fluid phase Equilibria, 41:287-294. DOI: https://doi.org/10.1016/0378-3812(88)80013-X
Roberts, B. E. and Marher, A. E.; 1988. Solubility of hydrogen sulfide and carbon dioxide in sulfolane. Canada. J. Chem. Eng., 67:519-520. DOI: https://doi.org/10.1002/cjce.5450660328
Rivas,O.R. and Prausnitz., J. M.; 1979. Sweetening of sour natural gases by mixed-solvent absorption: solubilities of ethane, carbon dioxide, and hydrogen sulfide in mixtures of Physical and chemical solvents. AIChE. J., 25:975-984. DOI: https://doi.org/10.1002/aic.690250608
Scott, R.L.; and Van Konynenburg, P.B., 1970. Static properties of solutions-Van der Waals and related models for hydrocarbon mixtures, Discuss. Faraday Soc., Vol.49, pp: 87. DOI: https://doi.org/10.1039/df9704900087
Paulaitis, M.E.; Krukonis, V.J.; Kurnik, R.T.; and Reid, R.C., 1982.Supercritical fluid extraction, Rev. Chem. Eng., Vol.1, pp: 179.
Karim, Abdul M. A.; 1998. Phase Equilibrium Study For The Separation of Solid and Liquid Components Using Supercritical Carbon Dioxide.Ph.D. Thesis, University of Technology, Baghdad, Iraq.
Peng, D.-Y., and Robinson, D.B., 1976. A new two-constant equation of state, Ind. Eng. Chem. Fundamen., Vol.15, pp:59-64. DOI: https://doi.org/10.1021/i160057a011
Adachi, Y.; Sugie, H. A; 1986. New Mixing Rule – Modified Conventional Mixing Rule. Fluid Phase Eq., 28, 103. DOI: https://doi.org/10.1016/0378-3812(86)85072-5
Panagiotopoulos, A.Z.; Reid, R.C; 1985. High-Pressure Phase Equilibria in Ternary Fluid Mixtures with a Supercritical Component. ACS Division of Chemistry, Preprints Fuel, 30(3), 46.
Walas, S. M., 1985. Phase Equilibria in Chemical Engineering. Butterworth Publishers, USA.
Hadi, A. J.;2005.Thermodynamic Model for High Pressure Phase Behavior of Carbon Dioxide in Several Physical Solvents at Different Temperatures.M.Sc. Thesis,University of Tikrit,Tikrit,Iraq.