Korean Journal of Chemical Engineering

, Volume 13, Issue 3, pp 234–241 | Cite as

Mass transfer in a countercurrent spray column at supercritical conditions

  • Byung-Soo Chun
  • Hwae-Geon Lee
  • Jae-Kee Cheon
  • Gordon Wilkinson


Mass transfer characteristics were determined for countercurrent extraction in a spray column with supercritical carbon dioxide solvent. Feeds were 5 and 10 vol% aqueous ethanol and iso-propanol at 25–65°C and 6.89–15.51 MPa. Results obtained in a 22 mm inside diameter column showed enhanced extraction efficiencies over comparable liquid-liquid systems. The models based on conventional liquid-liquid extraction were modified to correlate overall mass transfer coefficients for supercritical conditions. The constant value in the model of measuring individual mass transfer coefficient was influenced by the density of carbon dioxide and the system used.

Key words

Mass Transfer Spray Column Supercritical Carbon Dioxide Hold-up Drop Size 


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Copyright information

© Korean Institute of Chemical Engineering 1996

Authors and Affiliations

  • Byung-Soo Chun
    • 1
  • Hwae-Geon Lee
    • 1
    • 2
  • Jae-Kee Cheon
    • 1
    • 2
  • Gordon Wilkinson
    • 1
    • 3
  1. 1.Department of Food EngineeringPusan National University of TechnologyKorea
  2. 2.Department of Chemical EngineeringPusan National University of TechnologyKorea
  3. 3.School of Chemical TechnologyUniversity of South Australia

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