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Received August 7, 2009
Accepted August 14, 2009
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Vapor-liquid equilibria of carbon dioxide+n-propanol at elevated pressure
Department of Chemical and Biomolecular Engineering, Sogang University, 1142, Seoul 121-742, Korea
limjs@sogang.ac.kr
Korean Journal of Chemical Engineering, January 2010, 27(1), 284-288(5), 10.1007/s11814-009-0342-0
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Abstract
High-pressure vapor-liquid equilibrium data were measured for the binary mixtures of CO(2)+n-propanol at various isotherms (313.15-343.15 K). The vapor and liquid compositions and pressures were measured in a circulation-type apparatus. To facilitate easy equilibration, both vapor and liquid phases were circulated separately in the experimental apparatus and the equilibrium composition was analyzed by an on-line gas chromatograph. The experimental_x000D_
data were compared with literature results and correlated with the Peng-Robinson (PR) equations of state using the Wong-Sandler mixing rules. Calculated results with PR EOS showed good agreement with our experimental data.
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References
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McHugh MA, Krukonis VJ, Supercritical fluid extraction, Butterworth-Heinemann, Stoneham (1994)
Suzuki K, Sue H, Itou M, Smith RL, Inomata H, Arai K, Saito S, J. Chem. Eng. Data, 35, 63 (1990)
Peng DY, Robinson DB, Ind. Eng. Chem. Fundam., 15, 59 (1976)
Wong DSH, Sandler SI, AIChE J., 38, 671 (1992)
Seong G, Yoo KP, Lim JS, J. Chem. Eng. Data, 53, 2783 (2008)
Seong GY, Kim AR, Yoo KP, Lim JS, Korean J. Chem. Eng., 26(1), 206 (2009)
Wong DSH, Orbey H, Sandler SI, Ind. Eng. Chem. Res., 31, 2033 (1992)
Renon H, Prausnitz JM, AIChE J., 14, 135 (1968)
McLinden MO, Klein SA, Lemmon EW, Peskin AP, Thermodynamic properties of refrigerants and refrigerant mixtures database (REFPROP), V.6.01, NIST (1998)
