Simulation of solids processes accounting for particle‐size distribution

Design of integrated crystallization systems

“…time Hill and Ng, 1997 . If the crystals are to be sent to a compactor for size enlargement, a narrow PSD is undesirable, because the resulting agglomerate may not have suffi-Ž .…”

“…Simulation studies using population balance equations demonstrated the importance of recycled seed crystals in an alu-Ž . mina plant Hill and Ng, 1997 . While downstream processing problems can be handled by modifying the filters and dryers, it is far simpler to eliminate the potential problems in the crystallizer.…”

Synthesis of processing system around a crystallizer

“…In a potash plant (Rajagopal et al, 1988), the evaporative crystallizer effluent is recycled back to the dissolver to replenish dissolved potash (Rule 15). Seed crystals are recycled from the solid-liquid separation system to the crystallizer in an alumina plant (Rule 16) (Hill and Ng, 1997).…”

“…The objective of this study is to address these questions by providing a systematic procedure for the synthesis of the processing system around the crystallizer. This constitutes part of our overall effort on the synthesis and simulation of solids plants (Rajagopal et al, 1992;Hill and Ng, 1997) and the synthesis of crystallization processes (Dye and Ng, 1995;Berry et al, 1997).…”

Numerical and Similarity Solutions for Reversible Population Balance Equations with Size-Dependent Rates

“…Many such processes are actually reversible as illustrated by liquid-liquid dispersions with breakage and coalescence (8), the ceiling temperature for polymerization (9), recombination during pyrolysis (10), and equilibrium solubility of crystals (11). A few papers have treated the simultaneous reversible processes by lattice-based computer simulations (12), combinatorial approaches (13), a discretisation algorithm (14)(15)(16), and the method of moments (17,18). Formulating reversible PBEs that properly reduce to irreversible models involves combining aggregation and fragmentation kinetics.…”