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Received January 18, 2012
Accepted April 17, 2012
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Measurement and correlation of the isothermal vapor-liquid equilibrium data for carbon dioxide and dimethyl ether system
Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 100-611, Korea
limjs@sogang.ac.kr
Korean Journal of Chemical Engineering, October 2012, 29(10), 1418-1425(8), 10.1007/s11814-012-0052-x
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Abstract
Vapor-liquid equilibrium (VLE) data for the binary system of carbon dioxide (CO2)+dimethyl ether (DME) were measured at six equally spaced (10 K) temperatures between 283.15 and 333.15 K. The data in the two-phase region were measured by using a circulation-type equilibrium apparatus in which both vapor and liquid phases are continuously recirculated. The equilibrium compositions of vapor and liquid phases and pressure were reported at each temperature. The experimental VLE data were correlated with PR-EoS using the Wong-Sandler (W-S) mixing rule_x000D_
and the universal mixing rule (UMR). The overall average values of AAD-P (%) and AAD-y through the temperature range from 283.15 to 333.15 K were 1.0% and 0.012 for the W-S mixing rule and 0.88% and 0.014 for the UMR, respectively. All values are small and acceptable. Calculated results with these equations have given satisfactory results compared with the experimental data.
Keywords
References
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Kim SA, Yoo KP, Lim JS, Korean J. Chem. Eng., 27(6), 1887 (2010)
Wong DSH, Orbey H, Sandler SI, Ind. Eng. Chem. Res., 31, 2033 (1992)
Renon H, Prausnitz JM, AIChE J., 14, 135 (1968)
Mathias PM, Copeman TW, Fluid Phase Equilib., 13, 91 (1983)
Anderson TF, Abrams DS, Grens II EA, AIChE J., 24, 20 (1978)
Fredenslund A, Jones RL, Prausnitz JM, AIChE J., 21, 1086 (1975)
Bondi AA, Physical Properties of Molecular Crystals, Liquids, and Glasses, John Wiley and Sons: Hoboken, New Jersey (1968)
McLinden MO, Klein SA, Lemmoon EW, Peskin AP, Thermodynamic Properties of Refrigerants and Refrigerant Mixtures Database (REFPROP), V.6.01, NIST (1998)
Poling BE, Prasunitz JM, O’Connell JP, fifth Ed., McGraw-Hill, New York (2001)
Im J, Lee G, Lee J, Kim H, J. Chem. Thermodyn., 38(12), 1510 (2006)
