Separation Technology, Thermodynamics

Korean Journal of Chemical Engineering

, Volume 30, Issue 2, pp 434-439

First online:

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

  • Seonghoon HyeongAffiliated withSchool of Chemical & Biological Engineering and Institute of Chemical Processes, Seoul National University
  • , Sunghyun JangAffiliated withSchool of Chemical & Biological Engineering and Institute of Chemical Processes, Seoul National University
  • , Kab-Soo LeeAffiliated withEnvironmental System Engineering, Kimpo College
  • , Hwayong KimAffiliated withSchool of Chemical & Biological Engineering and Institute of Chemical Processes, Seoul National University Email author 

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Abstract

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