An Improved Correlation of the Mean Drop Size in a Modified Scheibel Extraction Column

Abstract

The drop size is of fundamental importance in the design of liquid‐liquid extraction columns, the drop size was measured as a function of the geometry, operating conditions, and physical properties of a liquid‐liquid system with no mass transfer in a five‐stage modified Scheibel extraction column. An improved correlation of the mean drop size in the Scheibel extraction column is presented. The correlation was divided into three sections in terms of the Reynolds number. It could be applied in a wide range and could be further used for the study of mass transfer performance of the modified Scheibel extraction column.

CFD-PBM Simulation of Sauter Mean Diameter in a Stirred Sieve-Plate Extraction Column

“…Yuan et al proposed the following empirical correlation to predict the d 32 of the dispersed phase in the stirred sieve-plate extraction column, which was also used to compare with the simulation and experimental results. …”

“… d 32 at different stirring speeds, the experimental data is sourced from Yaun, (a) system 1, Q c = 3 mL/min, Q d = 2 mL/min, (b) system 2, Q c = 3 mL/min, Q d = 1 mL/min, (c) system 3, Q c = 3 mL/min, Q d = 1 mL/min, (d) system 4, Q c = 3 mL/min, Q d = 1 mL/min, and (e) system 6, Q c = Q d = 3 mL/min.…”

“… d 32 at different dispersed phase flow rates, the experimental data is sourced from Yaun, (a) system 1, Q c = 3 mL/min, N = 200 rpm, (b) system 3, Q c = 3 mL/min, N = 270 rpm, and (c) system 5, Q c = 3 mL/min, N = 440 rpm.…”

“… d 32 at different continuous phase flow rates, the experimental data is sourced from Yaun, system 5, Q d = 1 mL/min, N = 350 rpm.…”

Effects of silica nanoparticles on the mean drop size and drop‐size distribution in a Scheibel extraction column

“…The blades rotate around with central shaft that turned by a motor embedded on top of the column. The blades act as a mixer, and the packed are responsible for sedimentation . Mass transfer takes place in the mixer and the coalescence of the drops occurs in the packed.…”