Korean Journal of Chemical Engineering, Vol.27, No.1, 261-266, January, 2010
High pressure isothermal vapor-liquid equilibria of carbon dioxide+1,1-difluoroethane
E-mail:
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.
Keywords:Carbon Dioxide (CO2);HFC-152a;Vapor-liquid Equilibria (VLE);Carnahan-Staring-DeSantis Equation of State (CSD EoS);Peng-Robinson Equation of State (PR EoS)
- Lim JS, Park JY, Lee BG, Korean J. Chem. Eng., 22(6), 932 (2005)
- 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)