SCI和EI收录∣中国化工学会会刊

›› 2015, Vol. 23 ›› Issue (3): 476-481.DOI: 10.1016/j.cjche.2014.11.027

• 流体力学与传递现象 • 上一篇    下一篇

Effect of surfactant type on interfacial area and liquid mass transfer for CO2 absorption in a bubble column

Xuewu Jia, Weichao Hu, Xigang Yuan, Kuotsung Yu   

  1. State Key Laboratory of Chemical Engineering (Tianjin University), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
  • 收稿日期:2013-08-23 修回日期:2014-08-27 出版日期:2015-03-28 发布日期:2015-04-03
  • 通讯作者: Xigang Yuan
  • 基金资助:
    Supported by the National Natural Science Foundation of China (20736005).

Effect of surfactant type on interfacial area and liquid mass transfer for CO2 absorption in a bubble column

Xuewu Jia, Weichao Hu, Xigang Yuan, Kuotsung Yu   

  1. State Key Laboratory of Chemical Engineering (Tianjin University), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
  • Received:2013-08-23 Revised:2014-08-27 Online:2015-03-28 Published:2015-04-03
  • Supported by:
    Supported by the National Natural Science Foundation of China (20736005).

摘要: The effect of different surfactants (n-octyltrimethylammonium bromide (OTABr), sodium dodecyl benzene sulfonate (SDBS) and Tween 80) with different critical micelle concentrations (CMC) on the CO2 absorption into aqueous solutions in a bubble column is analyzed in the present work. The presence of these surfactants increased the gas-liquid interfacial area, and decreased the liquid phase mass transfer coefficient, but with significant different extent. The results indicated that the CMC can be a key parameter affecting the mass transfer of CO2 absorption into a dilute aqueous solution of a surfactant. Sardeing's model was used to fit the experimental data successfully by re-correlating the parameters.

关键词: Absorption, Surfactant, Mass transfer coefficient, Bubble column, Critical micelle concentration

Abstract: The effect of different surfactants (n-octyltrimethylammonium bromide (OTABr), sodium dodecyl benzene sulfonate (SDBS) and Tween 80) with different critical micelle concentrations (CMC) on the CO2 absorption into aqueous solutions in a bubble column is analyzed in the present work. The presence of these surfactants increased the gas-liquid interfacial area, and decreased the liquid phase mass transfer coefficient, but with significant different extent. The results indicated that the CMC can be a key parameter affecting the mass transfer of CO2 absorption into a dilute aqueous solution of a surfactant. Sardeing's model was used to fit the experimental data successfully by re-correlating the parameters.

Key words: Absorption, Surfactant, Mass transfer coefficient, Bubble column, Critical micelle concentration