Abstract：
The effect of ethanol contamination in gas phase on the liquid interfacial convection in the absorption process of CO2 into water was investigated. The instantaneous velocity field of liquid was measured experimentally via particle image velocimetry (PIV). The data of velocity and turbulent kinetic energy under different conditions were obtained by processing the measurement data. Then the effect of added ethanol into the gas phase on interfacial convection in gas-liquid mass transfer process was quantitatively analyzed according to the velocity, turbulent kinetic energy and their distributions. It was observed that the addition of ethanol in the gas phase generated local Marangoni effect, which largely induced the convection near the interface and could be known as promising in intensifying the mass transfer of such a process.
HU Wei-Chao, JIA Xue-Wu, YUAN Xi-Gang.Effect of Gas-Phase Contamination of Ethanol on the Interfacial Convection in Process of CO2 Absorption into Water[J]. Chemcial Industry and Engineering, 2014,31(5): 54-58
2014, Vol. 31 
