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Bubble Properties in Bubble Columns with Electrolyte Solutions

전해질용액 기포탑에서 기포특성

  • Yoo, D.J. (Department of Chemical Engineering & Applied Chemistry, Chungnam National University) ;
  • Lim, D.H. (Department of Chemical Engineering & Applied Chemistry, Chungnam National University) ;
  • Jeon, J.S. (Department of Chemical Engineering & Applied Chemistry, Chungnam National University) ;
  • Yang, S.W. (Department of Chemical Engineering & Applied Chemistry, Chungnam National University) ;
  • Kang, Y. (Department of Chemical Engineering & Applied Chemistry, Chungnam National University)
  • 유동준 (충남대학교 응용화학공학과) ;
  • 임대호 (충남대학교 응용화학공학과) ;
  • 전종설 (충남대학교 응용화학공학과) ;
  • 양시우 (충남대학교 응용화학공학과) ;
  • 강용 (충남대학교 응용화학공학과)
  • Received : 2016.03.16
  • Accepted : 2016.04.01
  • Published : 2016.08.01

Abstract

Bubble properties such as size (chord length) and rising velocity were investigated in a bubble column with electrolyte solutions, of which diameter was 0.152m and 2.5m in height, respectively. The size and rising velocity of bubbles were measured by using the dual electrical resistivity probe method. Effects of gas and liquid velocities and ionic strength of liquid phase on the size and rising velocity of bubbles were determined. The bubble size increased with increasing gas velocity but decreased with increasing liquid velocity or ionic strength of liquid phase. The rising velocity of bubbles increased with increasing gas velocity and decreased with increasing ionic strength of liquid phase, however, it showed a slight maximum value with varying liquid velocity. The size and rising velocity of bubbles were well correlated with operating variables.

Acknowledgement

Supported by : 한국연구재단

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