vol15no3pa3

References

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Tikrit Journal of Engineering Sciences (2008) 15(3) 37-47

A Study of Phase Equilibrium of H2S in Several Physical Solvents Using Chemcad Simulator

Zaid A. Abdel-Rahman
Chem. Eng. Dept.- University of Tikrit,Iraq.

Abstract

CHEMCAD process simulator was used for the analysis of the literature experimental phase equilibrium data of H2S with three physical solvents (Sulfolane, Propylene Carbonate (PC), and N-Methyl-2-Pyrrolidone (NMP)) at different temperatures ( 298.15 oK , 323.15 oK, and 373.15 oK). Two thermodynamic models, Peng-Robinson (PR) and Soave-Redlich-Kwong (SRK), were used. The equilibrium data of H2S- Sulfolane and H2S- Propylene Carbonate (PC) systems were successfully correlated using SRK thermodynamic model. The deviation was noticed only for H2S-Sulfolane system as the temperature increases to 373 oK, to give a deviation of less than 5% . The thermodynamic models used in present study, PR, and SRK , built in CHEMCAD simulator and used as such without modification, fail to correlate the equilibrium data of H2S- NMP (N-Methyl-2-Pyrrolidone) system for all temperature range used. Modifications of the thermodynamic models were performed by editing user defined binary interaction parameters (BIP) of the systems used, gives good results.

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Keywords: Vapor Liquid Equilibria, H2S, Physical Solvents, CHEMCAD Simulator, Thermodynamic Models, Equation of state and correlation

How to cite

TJES: Abdel-Rahman ZA. A Study of Phase Equilibrium of H2S in Several Physical Solvents Using Chemcad Simulator. Tikrit Journal of Eng Sciences 2008;15(3):37-47.
APA: Abdel-Rahman, Z. A. (2008). A Study of Phase Equilibrium of H2S in Several Physical Solvents Using Chemcad Simulator. Tikrit Journal of Eng. Sciences, 15(3), 37-47..
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