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Issue
Korean Journal of Chemical Engineering,
Vol.13, No.3, 234-241, 1996
MASS TRANSFER IN A COUNTERCURRENT SPRAY COLUMN AT SUPERCRITICAL CONDITIONS
Chun BS, Lee HG, Cheon JK, Wilkinson G
Mass transfer characteristics were determined for countercurrent extraction in a spray column with su-percritical carbon dioxide solvent. Feeds were 5 and 10 vol% aqueous ethanol and iso-propanol at 25-65℃ and 6.89-15.51MPa. Results obtained in a 22mm inside diameter column showed enhanced extraction efficiencies over comparable liq-uid-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.
Keywords: Mass Transfer; Spray Column; Supercritical Carbon Dioxide; Hold-up; Drop Size
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[Cited By]
  1. Chun BS, Wilkinson GT, Korean Journal of Chemical Engineering, 16(2), 187, 1999
  2. Sanpui D, Khanna A, Korean Journal of Chemical Engineering, 20(4), 609, 2003
  3. Sanpui D, Singh MK, Khanna A, Korean Journal of Chemical Engineering, 21(2), 511, 2004
  4. Wang B, Li Q, Zhang Z, Yang J, Liu Y, Korean Journal of Chemical Engineering, 23(1), 131, 2006
  5. Amani P, Amani M, Hasanvandian R, Korean Journal of Chemical Engineering, 34(5), 1456, 2017
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