Abstract:

Coupled with coalescence-redispersion model and lamella model, a new model was presented to describe the flow, mixing and reaction process in rotating packed bed (RPB) and calculate the mixing-dependent product selectivity.The model was solved numerically with boundary conditions of RPB characteristics.As operational variables were changed, the model predicted well the effect of variables on the product selectivity while considering macro-distribution non-uniformity of inlet liquid.The influence of volumetric ratio, rotating speed and flow rate on segregation index was investigated.The results showed that the process was controlled by reaction kinetics while operating at a small volumetric ratio, but the micromixing rate had remarkable effect on the reaction process at a high volumetric ratio.In the micromixing-controlled region, segregation index decreased with increasing rotating speed but the increase of flow rate had little effect on segregation index.