CIESC Journal

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垂直管内弹状气泡上升时的壁面传质

贠军贤; 沈自求; 明平文   

  1. School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2002-08-28 发布日期:2002-08-28
  • 通讯作者: 贠军贤

Wall-liquid mass transfer for Taylor bubbles rising through liquid in a vertical tube

YUN Junxian; SHEN Ziqiu; MING Pingwen   

  1. School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2002-08-28 Published:2002-08-28
  • Contact: YUN Junxian

摘要: Wall-liquid mass transfer for Taylor bubbles rising through liquid column in vertical tubes
is an important and fundamental topic in industrial processes. In this work, the
characteristics of wall-liquid mass transfer for this special case of slug flow were
studied experimentally by limiting diffusion current technique (LDCT). Based on the
experimental results and the analysis of hydrodynamic mechanisms, it was proposed that four
different zones exist, i.e. the laminar falling film zone, the turbulent falling film zone,
the wake region and the remaining liquid slug zone. The corresponding correlations for all
these zones were developed.

关键词: gas-liquid slug flow;Taylor bubble;mass transfer;vertical tube

Abstract: Wall-liquid mass transfer for Taylor bubbles rising through liquid column in vertical tubes
is an important and fundamental topic in industrial processes. In this work, the
characteristics of wall-liquid mass transfer for this special case of slug flow were
studied experimentally by limiting diffusion current technique (LDCT). Based on the
experimental results and the analysis of hydrodynamic mechanisms, it was proposed that four
different zones exist, i.e. the laminar falling film zone, the turbulent falling film zone,
the wake region and the remaining liquid slug zone. The corresponding correlations for all
these zones were developed.

Key words: gas-liquid slug flow, Taylor bubble, mass transfer, vertical tube