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Title: Measurement and model prediction of vapor-liquid equilibria of mixtures of rapeseed oil and supercritical carbon dioxide

Abstract

Isothermal-vapor-liquid equilibrium data of the rapeseed oil-carbon dioxide system were measured with a vapor-recirculation apparatus at 313.15, 333.15, 353.15, and 373.15 K at pressures between 10 and 85 MPa. The solubilities of rapeseed oil in carbon dioxide were compared with solubility data of other vegetable oils from the literature. A lattice model equation of state (EOS) is used to describe the rapeseed oil-carbon dioxide system. The lattice EOS was improved by introducing a more accurate EOS for carbon dioxide (Bender EOS) into the model. With the Kumar-Bender model and a tree-binary-parameter, composition- and density-dependent combining rule proposed by Wilczek-Vera and Vera, a quantitative description of phase equilibrium is obtained. The temperature dependence of the binary parameters has been evaluated for interpolation or extrapolation purposes.

Authors:
;  [1]
  1. Lehrstuhl fur Thermodynamik, Abteilung Chemietechnik, Universitat Dortmund, D-4600 Dortmund 50 (DE)
Publication Date:
OSTI Identifier:
7030916
Resource Type:
Journal Article
Journal Name:
Industrial and Engineering Chemistry Research; (USA)
Additional Journal Information:
Journal Volume: 28:7; Journal ID: ISSN 0888-5885
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CARBON DIOXIDE; EQUATIONS OF STATE; VEGETABLE OILS; SOLUBILITY; BINARY MIXTURES; CHEMICAL COMPOSITION; EQUILIBRIUM; ISOTHERMAL PROCESSES; LIQUIDS; MIXTURES; SUPERCRITICAL STATE; VAPORS; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; DISPERSIONS; EQUATIONS; FLUIDS; GASES; OILS; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; 400201* - Chemical & Physicochemical Properties; 400105 - Separation Procedures

Citation Formats

Klein, T, and Schulz, S. Measurement and model prediction of vapor-liquid equilibria of mixtures of rapeseed oil and supercritical carbon dioxide. United States: N. p., 1989. Web. doi:10.1021/ie00091a029.
Klein, T, & Schulz, S. Measurement and model prediction of vapor-liquid equilibria of mixtures of rapeseed oil and supercritical carbon dioxide. United States. https://doi.org/10.1021/ie00091a029
Klein, T, and Schulz, S. Sat . "Measurement and model prediction of vapor-liquid equilibria of mixtures of rapeseed oil and supercritical carbon dioxide". United States. https://doi.org/10.1021/ie00091a029.
@article{osti_7030916,
title = {Measurement and model prediction of vapor-liquid equilibria of mixtures of rapeseed oil and supercritical carbon dioxide},
author = {Klein, T and Schulz, S},
abstractNote = {Isothermal-vapor-liquid equilibrium data of the rapeseed oil-carbon dioxide system were measured with a vapor-recirculation apparatus at 313.15, 333.15, 353.15, and 373.15 K at pressures between 10 and 85 MPa. The solubilities of rapeseed oil in carbon dioxide were compared with solubility data of other vegetable oils from the literature. A lattice model equation of state (EOS) is used to describe the rapeseed oil-carbon dioxide system. The lattice EOS was improved by introducing a more accurate EOS for carbon dioxide (Bender EOS) into the model. With the Kumar-Bender model and a tree-binary-parameter, composition- and density-dependent combining rule proposed by Wilczek-Vera and Vera, a quantitative description of phase equilibrium is obtained. The temperature dependence of the binary parameters has been evaluated for interpolation or extrapolation purposes.},
doi = {10.1021/ie00091a029},
url = {https://www.osti.gov/biblio/7030916}, journal = {Industrial and Engineering Chemistry Research; (USA)},
issn = {0888-5885},
number = ,
volume = 28:7,
place = {United States},
year = {1989},
month = {7}
}