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Characteristics of Gas-liquid Mass Transfer and Interfacial Area in a Bubble Column
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  • Journal title : Korean Chemical Engineering Research
  • Volume 53, Issue 3,  2015, pp.315-320
  • Publisher : The Korean Institute of Chemical Engineers
  • DOI : 10.9713/kcer.2015.53.3.315
 Title & Authors
Characteristics of Gas-liquid Mass Transfer and Interfacial Area in a Bubble Column
Lim, Dae Ho; Yoo, Dong Jun; Kang, Yong;
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 Abstract
Characteristics of gas-liquid mass transfer and interfacial area were investigated in a bubble column of diameter and height of 0.102 m and 2.5 m, respectively. Effects of gas and liquid velocities on the volumetric gas-liquid mass transfer coefficient (), interfacial area (a) and liquid side true mass transfer coefficient () were examined. The interfacial area and volumetric gas-liquid mass transfer coefficient were determined directly by adopting the simultaneous physical desorption of and chemical absorption of in the column. The values of and a increased with increasing gas velocity but decreased with increasing liquid velocity in the bubble column which was operated in the churn turbulent flow regime. The value of increased with increasing gas velocity but did not change considerably with increasing liquid velocity. The liquid side mass transfer was found to be related closely to the liquid circulation as well as the effective contacting frequency between the bubbles and liquid phases.
 Keywords
Bubble Column;Volume Mass Transfer Coefficient;Interfacial Area;Liquid Side Mass Transfer Coefficient;Liquid Circulation;
 Language
English
 Cited by
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