Model-based design of pressure-driven product removal from stirred suspensions

Achieving “mixed-product removal” in a mixed-suspension mixed-product removal crystallizer (MSMPRC), operating with pressure-driven suspension transfer, is challenging. In this work, single and multiphase computational fluid dynamics (CFD) simulations were used to guide the choice of suitable withdrawal position, which was found be that an immersed tube close vessel wall. The chosen position then tested compared other positions experimentally. It performed as predicted, whereas for positions, degree dilution (size-independent classification) sieving (size-dependent product removed increased. Furthermore, influence non-representative on MSMPRC steady-state investigated using population balance equation (PBE) model.