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Evaluation of the local composition model for VLE of binary mixtures of triethylene glycol with methane, water and benzene
Author(s) -
Cartaya Eduardo,
Harmon Steve,
Starling Kenneth E.
Publication year - 1996
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450740313
Subject(s) - triethylene glycol , methane , benzene , chemistry , thermodynamics , equation of state , work (physics) , binary system , binary number , organic chemistry , mathematics , physics , arithmetic
This work evaluated the predictive accuracy of the local composition model (LCM) formulation developed by Li et al. (1986) for four binary, vapor‐liquid equilibria (VLE) mixtures. The four components comprising these mixtures were benzene, triethylene glycol (TEG), water and methane, while the mixtures examined in this work were the benzene‐TEG, water‐TEG, methane‐TEG and methane‐benzene systems. The Khan‐Chung‐Lee‐Starling (KCLS) equation of state developed by Chung et al. (1984) was used with the LCM to predict the VLE behavior of these systems. The accurate results obtained in this work may be applied to the design of natural gas dehydration processes.