Abstract

An analytical model is developed for gas absorption in open-channel flow. It is solved in closed-form by the integration of the boundary layer diffusion equation for prescribed four liquid film layers and assumed universal velocity profile across the liquid film. A model is expressed in a form of an algebraic correlation for the prediction of mass transfer coefficient at the liquid surface. The comparison between the model predictions and the experimental data of CO 2 absorption in open-channel flow shows good agreement.

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