Modelling of industrial crystallizers, a compartmental approach using a dynamic flow-sheeting tool

A compartmental approach is presented to describe the crystallization process of evaporative and cooling suspension crystallizers. The model has been implemented in the dynamic flow-sheeting program Speedup and applied to simulate a 970 litre evaporative DTB crystallizer using four compartments. Preliminary simulation results indicate that even in DTB crystallizers, profiles of relevant process variables can be expected.