Representation of the vapor-liquid equilibrium of the ternary system carbon dioxide - propane - methanol and its binaries with a cubic equation of state : a new mixing rule |
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| Affiliation: | 1. CFD Team, CERFACS, Toulouse 31057, France;2. Univ. Grenoble Alpes, CNRS, Grenoble INP, LEGI, 38000 Grenoble, France;3. Université de Lyon, Ecole Centrale de Lyon, LMFA UMR 5509, Ecully Cedex 69134, France;1. Laboratory of Polymers Chemistry, Faculty of Sciences, University of Oran 1, Es-Senia, Oran, Algeria;2. Laboratory of Micro and Nanophysics (LaMiN), National Polytechnic School of Oran (ENPO), B.P. 1523, Oran El M''naouer, Oran, Algeria;1. Deparment of Physical Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163/165, Lodz, Poland;2. Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, Lodz, Poland |
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| Abstract: | Erroneous liquid phase splitting is often predicted when correlating the vapor-liquid equilibrium of alcohol-alkane systems with a cubic equation of state. It is shown that even the local-composition mixing rules are not sufficiently flexible for an accurate representation of the propane-methanol system, and a new empirical three-parameter mixing rule is introduced. The ternary system carbon-dioxide - propane - methanol is well-predicted from the binary data. |
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