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Received June 13, 2009
Accepted July 21, 2009
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High pressure isothermal vapor-liquid equilibria of carbon dioxide+1,1-difluoroethane
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), 261-266(6), 10.1007/s11814-009-0334-0
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Abstract
Vapor-liquid equilibrium data for the binary mixture of carbon dioxide (CO2)+1,1-difluoroethane (HFC-152a) were measured at five evenly spaced temperatures of (273.15, 283.15, 293.15, 303.15 and 313.15) K by using a circulation-type equilibrium apparatus in which both vapor and liquid phases were recirculated. The experimental data were correlated with the Peng-Robinson equation of state (PR-EoS) using the Wong-Sandler mixing rules combined with the NRTL excess Gibbs free energy model and the Carnahan-Starling-DeSantis equation of state (CSD EoS). Almost all the calculated values with these two models showed good agreement with the experimental data.
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References
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Lim JS, Park JY, Kang JW, Lee BG, Fluid Phase Equilib., 243(1-2), 57 (2006)
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Wong DSH, Orbey H, Sandler SI, Ind. Eng. Chem. Res., 31, 2033 (1992)
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Yun Y, Im J, Shin MS, Lee YW, Kim H, Fluid Phase Equilib., 271(1-2), 34 (2008)
Madani H, Valtz A, Coquelet C, Meniai AH, Richon D, J. Chem. Thermodyn., 40(10), 1490 (2008)
Lim JS, Jin JM, Yoo KP, J. Supercrit. Fluids, 44(3), 279 (2008)
Nicola GD, Polonara F, Santori G, Stryjek R, J. Chem. Eng. Data, 52, 1258 (2007)
Peng DY, Robinson DB, Ind. Eng. Chem. Fundam., 15, 59 (1976)
Wong DSH, Sandler SI, AIChE J., 38, 671 (1992)
DeSantis, Gironi F, Marrelli L, Ind. Eng. Chem. Fundam., 15, 183 (1976)
Lee BG, Yang WJ, Kim JD, Lim JS, J. Chem. Eng. Data, 48, 841 (2003)
Lim JS, Park JY, Lee KS, Kim JD, Lee BG, J. Chem. Eng. Data, 49, 750 (2004)
Lim JS, Park JY, Kang JW, Lee BG, Fluid Phase Equilib., 243(1-2), 57 (2006)
Lim JS, Seong G, Roh HK, Lee BG, J. Chem. Eng. Data, 52, 2250 (2007)
Wong DSH, Orbey H, Sandler SI, Ind. Eng. Chem. Res., 31, 2033 (1992)
Renon H, Prausnitz JM, AIChE J., 14, 135 (1968)
Huber M, Gallagher J, McLiden MO, Morrison G, NIST thermodynamic and transport properties of refrigerants and refrigerant mixtures database (REFPROP), V.5.0, NIST (1996)
McLinden MO, Klein SA, Lemmon EW, Peskin AP, Thermodynamic properties of refrigerants and refrigerant mixtures database (REFPROP), V.6.01, NIST (1998)
