Vapor-liquid equilibrium properties of carbon dioxide + ethanol mixture at high pressures.

• Tanaka Hiroyuki

  Department of Industrial Chemistry, Faculty of Engineering, Nihon University

• Kato Masahiro

  Department of Industrial Chemistry, Faculty of Engineering, Nihon University

Abstract

An experimental apparatus equipped with three density meters was newly developed for measuring vapor-liquid-liquid phase separation properties at high pressures. Coexisting phase composition and saturated density of each phase can be measured by means of the present apparatus with a maximum temperature of 400 K and pressure of 20 MPa. The phase compositions of carbon dioxide + ethanol mixture and their densities at high pressures were measured at 308.15 K with the apparatus. The sensitivity and absolute reliability of the equilibrium compositions appear to be 0.0001 and 0.001 mole fractions, respectively. The accuracy of saturated densities is 0.1 kg/m³. The equilibrium compositions obtained in the present study were correlated with the pseudocubic equation of state previously proposed by the authors and the Soave-Redlich-Kwong equation of state. Saturated densities obtained in the present study were further evaluated by the equations of state with the interaction parameters determined from vapor-liquid equilibrium data.

Journal

• JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

  JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 28 (3), 263-266, 1995

  The Society of Chemical Engineers, Japan

Keywords

• Physical Property
• High Pressure
• Phase Equilibrium
• Super Critical
• Density
• Carbon Dioxide
• Ethanol
• Experimental Apparatus

Details

• CRID: 1390282679541220736
• NII Article ID: 10002133672
• NII Book ID: AA00709658
• DOI: 10.1252/jcej.28.263
• COI: 1:CAS:528:DyaK2MXmsFynsL4%3D
• ISSN: 18811299
• ISSN: 00219592
• Web Site: http://www.jstage.jst.go.jp/article/jcej/28/3/28_3_263/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed