Liquid-solid mass transfer at vertical screens in bubble columns

摘要

The effect of gas sparging on the rate of mass transfer at a vertical single screen was studied by an electrochemical technique which involved measuring the limiting current of the cathodic reduction of potassium ferricyanide. Variables studied were screen characteristics, physical properties of the solution and gas superficial velocity. Screen characteris- tics, e.g., mesh number and wire diameter were found to have little effect on the rate of mass transfer.