The Backflow-Cell Model for Continuous Two-Phase Nonlinear Mass-Transfer Operations Including Nonlinear Axial Holdup and Mixing Effects

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Abstract
The backflow-cell model is applied to countercurrent two-phase flow processes with exchange of a single solute. The effects of nonuniform axial holdup of the phases and nonlinear equilibrium are considered. Efficient matrix methods of solving the model equations for the array of cell concentrations in each phase are developed. These profiles are compared to those of the diffusion model for some linear cases, and methods of smoothing them are discussed.

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