Effect of Liquid- and Gas-Mixing on the Rate of Mass Transfer between Two Phases in Crosscurrent Flow

Abstract

The theoretical correlations have been derived by the authors for the concentration gradients in the froth layer on a sieve or bubble-cap plate, based on the assumption that the flow velocities of the gas and liquid in each direction are constant throughout the froth layer. The degree of liquid- and gas-mixing was experessed by the backmixing diffusion. Point efficiency varies with change in the number of transfer units and with the degree of gas-mixing. The liquid-mixing has no effect on the point efficiency. Plate efficiency is affected by both the liquid- and gas-mixing. The effect of the liquid-mixing is more marked than that of gas-mixing.