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

Research output: Contribution to journalArticle

19 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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