The permeation of a binary model mixture though an O/W/O emulsion liquid membrane was studied experimentally. Considerable axial mixing and coalescence of the emulsion drops were observed near the distributor, which atomized the emulsion, as reported previously. The diameters of the emulsion drops in the middle to bottom section of the column increased, that is, the average specific interfacial area between the emulsion and solvent decreased with column height. The overall volumetric permeation coefficients of the permeates, therefore, fell with column height. There was no substantial effect of the height on the separation factor.