CRITICAL IMPELLER SPEED FOR SOLID SUSPENSION IN MECHANICALLY AGITATED 3-PHASE REACTORS .2. MATHEMATICAL-MODEL

A mathematical model has been developed for describing the solid suspension on the basis of a sedimentation-dispersion model. All the parameters such as vessel diameter, impeller diameter, sparger design, particle size, and loading have been included in the model. The flow pattern in mechanically agitated reactors (measured by laser-doppler anemometer together with mixing time) has been used for the estimation of model parameters. All the experimental data collected in part 1 have been analyzed on the basis of the proposed mathematical model.