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Vapor-liquid equilibria for the binary mixtures of methanol+cyclopentyl methyl ether (CPME)

  • Separation Technology, Thermodynamics
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Abstract

VLE data for binary systems of methanol (1)+cyclopentyl methyl ether (2) were measured at five equal-spaced temperatures between 313.15 and 353.15 K using a circulation-type equilibrium apparatus with on-line gas chromatography analysis. This binary system shows strong positive deviation from Raoult’s law and forms an azeotrope at each temperature. The experimental data were correlated with the Peng-Robinson equation of state using the Wong-Sandler mixing rule combined with the NRTL excess Gibbs free energy model. The overall average relative deviations of pressure (ARD-P (%)) and vapor phase compositions (ARD-y (%)) between experimental and calculated values through the temperature range from 313.15 to 353.15 K were 0.298 and 0.499%, respectively. In the range of experimental temperature, azeotropic compositions showed a linear relationship with temperature and were correlated by the empirical equation of x azeo =0.001 T/K+0.617.

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Authors and Affiliations

  1. Department of Chemical and Biomolecular Engineering, Sogang University, C. P. O. Box 1142, Seoul, 04107, Korea

    Wan Ju Jeong, Hang-kyu Cho & Jong Sung Lim

Authors
  1. Wan Ju Jeong
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  2. Hang-kyu Cho
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  3. Jong Sung Lim
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Correspondence to Jong Sung Lim.

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Jeong, W.J., Cho, Hk. & Lim, J.S. Vapor-liquid equilibria for the binary mixtures of methanol+cyclopentyl methyl ether (CPME). Korean J. Chem. Eng. 33, 2961–2967 (2016). https://doi.org/10.1007/s11814-016-0145-z

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  • DOI: https://doi.org/10.1007/s11814-016-0145-z

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