Mass transfer in a confined plunging liquid jet bubble column

A model of confined plunging liquid jet bubble column absorber is formulate d and utilized for the interpretation of the experimental data obtained dur ing steady-state absorption of concentrated gaseous CO2 in water. A strong variability of molar flux of the gas phase in the contactor was observed an d taken into account. Two zones differing in mass transfer and mixing chara cteristics are distinguished within the contactor. Volumetric mass transfer coefficient in the mixing zone beneath the impingement point, is an order of magnitude greater than in pipe flow zone and determines the overall perf ormance of the contactor. (C) 1999 Elsevier Science Ltd. All rights reserve d.