Vapor-liquid equilibrium correlations for systems containing amines using a lattice fluid equation of state with hydrogen bonding |
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Authors: | Alexander Breitholz Ki-Pung Yoo Jong Sung Lim Chul Soo Lee Jeong Won Kang |
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Affiliation: | (1) Department of Chemical and Biomolecular Engineering, Sogang University, Sinsu-dong, Mapo-gu, Seoul, 121-742, Korea;(2) Department of Chemical and Biological Engineering, Korea University, 5-Ga Anam-dong, Sungbuk-gu, Seoul, 136-701, Korea |
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Abstract: | The nonrandom lattice equation of state with hydrogen bonding (NLF-HB EOS) was examined for the correlation of vapor-liquid
equilibria (VLE) for binary amine and hydrocarbon mixture at various temperatures. For these mixtures, the consideration of
hydrogen bondings in the lattice equation of state clearly improves the prediction for VLE. The amines were divided into four
groups due to the different strength of the hydrogen bonding. For all groups, different hydrogen bonding parameters were obtained
and evaluated. The effects of varying hydrogen bonding energies for NLF-HB EOS are discussed. For systems containing lower
amines, the NLF-HB EOS showed excellent agreement with the experimental data. For the correlation of systems containing tertiary
amine molecules, binary interaction parameter had to be involved instead of hydrogen bonding parameters. |
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Keywords: | Vapor-liquid Equilibrium Correlation Lattice Fluid Equation of State Hydrogen Bonding Amines Hydrocarbons |
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