Determination and Correlation of Hydrodynamic Variables in a Three-Phase Fluidized Bed

摘要

The basic hydrodynamic variables of minimum fluidization velocity and phase holdups were experimentally measured in a three-phase fluidized bed utilizing a pressure profile technique. The effect of the liquid viscosity on the hydrodynamic variables was determined with glycerine-water solutions ranging in viscosity from 0.9 to 11.5 cp. Computerized techniques for data handling and analysis are presented. Correlations for the phase holdups and minimum fluidization velocities as functions of the phase properties and operating parameters are presented for the experi¬mental data and for data compiled from literature sources. An error analysis was performed on the experimental procedure to identify specific procedures requiring modification or control.