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Received November 18, 2005
Accepted December 23, 2005
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A multi-fluid nonrandom lattice fluid model: General derivation and application to pure fluids
School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul 151-744, Korea 1Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 121-742, Korea 2Department of Chemical and Biological Engineering, Korea University, Seoul 136-701, Korea
Korean Journal of Chemical Engineering, May 2006, 23(3), 469-475(7), 10.1007/BF02706751
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Abstract
A multi-fluid nonrandom lattice fluid model with no temperature dependence of close packed volumes of a mer, segment numbers and energy parameters of pure systems is presented. The multi-fluid nonrandom lattice fluid (MF-NLF) model with the local composition concept was capable of describing properties for complex systems. However, the MF-NLF model has strong temperature dependence of energy parameters and segment numbers of pure systems; thus empirical correlations as functions of temperature were represented for reliable and convenient use in engineering practices. The MF-NLF model without temperature dependence of pure parameters could not predict thermodynamic properties accurately. It was found that the present model with three parameters describes quantitatively the vapor pressure and the saturated density for the pure fluid.
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Guggenheim EA, Mixtures, Clarendon Press, Oxford (1952)
Huang SH, Radosz M, Ind. Eng. Chem. Res., 29, 2284 (1990)
Kang J, Yoo K, Kim H, Lee J, Yang D, Lee CS, Int. J. Thermophys., 22, 487 (2001)
Lacombe RH, Sanchez IC, J. Phys. Chem., 80, 2368 (1976)
Neau E, Fluid Phase Equilib., 203(1-2), 133 (2002)
Panayiotou C, Vera JH, Polym. J., 14, 681 (1982)
Prausnitz JM, Lichtenhalter RN, de Azevedo EG, Molecular thermodynamics of fluid-phase equilibria, Prentice-Hall, Englewood Cliffs, NJ (1999)
Renon H, Prausnitz JM, AIChE J., 14, 135 (1968)
Sanchez IC, Lacombe RH, J. Phys. Chem., 80, 2352 (1976)
Shin MS, Yoo KP, You SS, Lee CS, Int. J. Thermophys., 16, 723 (1995)
Wilson GM, J. Am. Chem. Soc., 86, 127 (1964)
Yoo KP, Shin MS, Yoo SJ, You SS, Lee CS, Fluid Phase Equilib., 111(2), 175 (1995)
Yoo KP, Kim H, Lee CS, Korean J. Chem. Eng., 12(3), 277 (1995)
Yoo KP, Kim H, Lee CS, Korean J. Chem. Eng., 12(3), 289 (1995)
Yoo KP, Shin HY, Lee CS, Bull. Korean Chem. Soc., 18, 965 (1997)
Yoo KP, Shin HY, Lee CS, Bull. Korean Chem. Soc., 18, 841 (1997)
