Computer-aided Measurement of Vapor-Liquid Equilibrium in a Still

Authors

  • Toshihiko Hiaki,

    Corresponding author
    1. Department of Industrial Chemistry, College of Industrial Technology, Nihon University, 1-2-1, lzumi-cho, Narashino-shi, Chiba, 275 Japan
    • Department of Industrial Chemistry, College of Industrial Technology, Nihon University, 1-2-1, lzumi-cho, Narashino-shi, Chiba, 275 Japan
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  • Kazutaka Yamato,

    1. Department of Industrial Chemistry, College of Industrial Technology, Nihon University, 1-2-1, lzumi-cho, Narashino-shi, Chiba, 275 Japan
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  • Hajime Miyazawa,

    1. Department of Industrial Chemistry, College of Industrial Technology, Nihon University, 1-2-1, lzumi-cho, Narashino-shi, Chiba, 275 Japan
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  • Kazuo Kojlma

    1. Department of Industrial Chemistry, College of Science and Technology, Nihon University, 1-8, Surugadai, Kanda, Chiyoda-ku, Tokyo, I01 Japan
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Abstract

Isothermal vapor-liquid equilibria were measured using a still with the aid of a computer for control of the temperature and measurement of the total pressure. The measurements were made with circulation of both the vapor and liquid phases in a still of the Rogalski and Malanowski type (1980). The isobaric vapor-liquid equilibria were measured for the benzene + 2-propanol system at 101.3 kPa in order to test the consistency of results obtained with this still. Isothermal vapor-liquid equilibria were measured for the 2,3-dimethylbutane + methanol system at 313.15 K. The experimental data were correlated with the Wilson (1964) equation.

Abstract

Des équilibres liquide-vapeur isothermes ont été mesurés dans une colonne à distiller à l'aide d'un ordinateur de régulation de la température et des mesures de pression totale. Les mesures ont été prises lorsque les phases liquide et vapeur circulent dans une colonne de type Rogalski et Malanowski (1980). Les équilibres liquide-vapeur isobares ont été mesurés pour le système benzène-2-propanol à 101,3 kPa en vue de vérifier la cohérence des résultats obtenus avec la colonne. Les équilibres liquide-vapeur isothermes ont été mesurés pour le système 2,3 diméthylbutane-méthano1 à 313,5 K. On a corrélé les données expérimentales avec l'équation de Wilson (1984).

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