Vapour-liquid interfacial tension of water and hydrocarbon mixture at high pressure and high temperature conditions

A. Bahramian, A. Danesh, F. Gozalpour, B. Tohidi, A. C. Todd

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    21 Citations (Scopus)

    Abstract

    Interfacial tension values of two liquid-liquid-vapour systems, a ternary water-decane-methane and a quaternary water-cyclohexane-decane-methane, were measured using a pendant drop technique at 150 °C and high pressures up to 28.1 MPa. The tested ternary mixture showed a maximum liquid-liquid interfacial tension by increasing pressure whereas it only slightly increased liquid-liquid interfacial tension in the quaternary system. The predicted interfacial tension values by some models are compared and the application of liquid-liquid interfacial tension models for predicting the liquid-vapour interfacial tension at high pressure conditions is discussed. © 2007 Elsevier B.V. All rights reserved.

    Original languageEnglish
    Pages (from-to)66-73
    Number of pages8
    JournalFluid Phase Equilibria
    Volume252
    Issue number1-2
    DOIs
    Publication statusPublished - 1 Mar 2007

    Keywords

    • Cyclohexane
    • Decane
    • Experimental data
    • Interfacial tension
    • Liquid-liquid equilibrium
    • Methane
    • Water

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