Korean Journal of Chemical Engineering

, Volume 30, Issue 2, pp 434–439

Isothermal vapor-liquid equilibria for the binary systems of ethylene glycol monopropyl ether with 2,2-dimethylbutane and 2,3-dimethylbutane

  • Seonghoon Hyeong
  • Sunghyun Jang
  • Kab-Soo Lee
  • Hwayong Kim
Separation Technology, Thermodynamics


Isothermal vapor liquid equilibria for the binary system of ethylene glycol monopropyl ether with 2,2-dimehylbutane and 2,3-dimethylbutane were measured in a circulating water bath at 303.15, 318.15, and 333.15 K. The apparatus was in-house designed and manufactured. Consistency testing of the apparatus was done by comparing the measured vapor pressures to the calculated vapor pressures from the Antoine equation. The measured systems were correlated with a Peng-Robinson equation of state (PR) combined with Wong-Sandler mixing rule for the vapor phase, and NRTL, UNIQUAC, and Wilson activity coefficient models for the liquid phase. All the measured systems showed good agreement with the correlation results.

Key words

Vapor-liquid Equilibria Surfactant Ethylene Glycol Monopropyl Ether 2,2-Dimethylbutane 2,3-Dimethylbutane 


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Copyright information

© Korean Institute of Chemical Engineers, Seoul, Korea 2012

Authors and Affiliations

  • Seonghoon Hyeong
    • 1
  • Sunghyun Jang
    • 1
  • Kab-Soo Lee
    • 2
  • Hwayong Kim
    • 1
  1. 1.School of Chemical & Biological Engineering and Institute of Chemical ProcessesSeoul National UniversitySeoulKorea
  2. 2.Environmental System EngineeringKimpo CollegeKimpoKorea

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