Calculation of excess molar volumes with different cubic equations of state and different mixing rules

Authors

  • Bojan D. Djordjević,

    Corresponding author
    1. Department of Chemical Engineering, Faculty of Technology and Metallurgy, 11000 Belgrade, Yugoslavia
    • Department of Chemical Engineering, Faculty of Technology and Metallurgy, 11000 Belgrade, Yugoslavia
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  • Slobodan P. Šerbanovlć,

    1. Department of Chemical Engineering, Faculty of Technology and Metallurgy, 11000 Belgrade, Yugoslavia
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  • Dušan K. Grozdanić

    1. Department of Chemical Engineering, Faculty of Technology and Metallurgy, 11000 Belgrade, Yugoslavia
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Abstract

The effects of the simple composition-dependent combining rules (conventional, Adachi-Sugie and van Laar-Stryjek-Vera-type) and Huron-Vidal-NRTL mixing rules and different cubic equations of state (Redlich-Kwong, Soave-Redlich-Kwong, Peng-Robinson and Peng-Robinson-Stryjek-Vera) on excess molar volume correlation are examined. The results obtained for some asymmetric non-ideal mixtures indicate very good agreement between correlated and experimental data in all cases when Huron-Vidal-NRTL mixing rules are coupled with the Peng-Robinson-Stryjek-Vera equation of state.

Abstract

On a examiné les effets des règles de combinaison dépendant de la composition simple (de type conventionnel, Adachi-Sugie et van Laar-Stryjek-Vera) des règles de mélange NRTL-Huron-Vidal et différentes équations d'état cubiques sur les corrélations de volume molaire d'excès. Les résltats obtenus dans le cas de mélanges non idéaux asymétriques montrent dans tous les cas un très bon accord avec les données expérimentales corrélées lorsque les règles de mélange NRTL-Huron-Vidal sont couplées avec l'équation d'état de Peng-Robinson-Stryjek-Vera

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