Abstract
In the last 20 years great progress has been achieved in the calculation and prediction of the real behavior of multicomponent systems using gE-models or EOS and binary information alone.
When the required binary data are missing, the group contribution method UNIFAC can be applied to complete the available experimental information; however, this method also shows some weaknesses.
In this paper results for the UNIFAC method will be presented together with the improvements which are obtained when a modified form of the UNIFAC method and a larger data base are used.
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References
Christensen C., J. Gmehling, P. Rasmussen, U. Weidlich, 1984. Heats of Mixing Data Collection, DECHEMA Chemistry Data Series, Vol. III, 2 parts, Frankfurt.
Fredenslund A., J. Gmehling, P. Rasmussen, 1977. Vapor-Liquid Equilibria Using UNIFAC Elsevier, Amsterdam.
Fredenslund, A., Jones R.L., Prausnitz, J.M., 1975 AIChE J. 21: 1086
Gmehling J., U. Onken, W. Arlt, P. Grenzheuser, B. Kolbe, U. Weidlich, 1977–1984. Vapor-Liquid Equilibrium Data Collection, DECHEMA Chemistry Data Series, Vol. I, 13 parts, Frankfurt.
Gmehling, J., P. Rasmussen, A. Fredenslund, 1982. Vapor-Liquid Equilibria by UNIFAC Group Contribution Revision and Extension II, Ind. Eng. Chem., Process Des. Dev., 21: 118.
Gmehling J. CODATA Bulletin 58, November 1985 Dortmund Data Bank — Basis for the Development of Prediction methods
Horsley, L.H., 1973, Azeotropic Data III, American Chemical Society, Washington
Hansch C., Leo A. 1979, Substituent Constants for Correlation Analysis in Chemistry and Biology, Wiley, New York
Macedo, E., U. Weidlich, J. Gmehling, P. Rasmussen, 1983. UNIFAC, Revision and Extension 3, Ind. Eng. Chem., Process Des. Dev., 22: 676.
Sørensen J.M., W. Arlt, 1979. Liquid-Liquid Equilibrium Data Collection, DECHEMA Chemistry Data Series, Vol. V, 3 parts, Frankfurt.
Tiegs D., J. Gmehling, A. Medina, M. Soares, J. Bastos, P. Alessi, I. Kikic, 1986. Activity Coefficients at Infinite Dilution, DECHEMA Chemistry Data Series, Vol. IX, 2 parts, Frankfurt.
Tiegs, D., J. Gmehling, P. Rasmussen, A. Fredenslund, 1987. Vapor-Liquid Equilibria by UNIFAC Group Contribution: Revision and Extension. 4, Ind. Eng. Chem. Research, 26: 159.
Weidlich, U., J. Gmehling, 1987. A Modified UNIFAC Model Part I Prediction of VLE, hE and ∞γ, Ind. Eng. Chem. Res., 26: 1372.
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© 1988 Springer-Verlag Berlin Heidelberg
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Gmehling, J. (1988). Prediction of Mixture Properties Using UNIFAC. In: Jochum, C., Hicks, M.G., Sunkel, J. (eds) Physical Property Prediction in Organic Chemistry. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-74140-1_24
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DOI: https://doi.org/10.1007/978-3-642-74140-1_24
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-74142-5
Online ISBN: 978-3-642-74140-1
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