Effect of surfactant type on interfacial area and liquid mass transfer for CO_2 absorption in a bubble column  

鼓泡塔中低浓度表面活性剂对CO_2吸收传质系数的影响（英文）

作　　者：贾学五 胡伟超 袁希钢 余国琮 

机构地区：[1]State Key Laboratory of Chemical Engineering(Tianjin University),School of Chemical Engineering and Technology,Tianjin University

出　　处：《Chinese Journal of Chemical Engineering》2015年第3期476-481,共6页中国化学工程学报（英文版）

基　　金：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 CO_2 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 CO_2 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.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 

分 类 号：TQ021.4[化学工程]