Antisolvent crystallization: Model identification, experimental validation and dynamic simulation

This paper is concerned with the development, simulation and experimental validation of a detailed antisolvent crystallization model. A population balance approach is adopted to describe the dynamic change of particle size in crystallization processes under the effect of antisolvent addition. Maximu...

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Bibliographic Details
Published in:Chemical engineering science 2008-11, Vol.63 (22), p.5457-5467
Main Authors: Mostafa Nowee, S., Abbas, Ali, Romagnoli, Jose A.
Format: Article
Language:English
Subjects:
Antisolvent crystallization
Applied sciences
Chemical engineering
Crystallization, leaching, miscellaneous separations
Exact sciences and technology
Kinetics
Parameter identification
Particle size
Pharmaceuticals
Population balance
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Summary:This paper is concerned with the development, simulation and experimental validation of a detailed antisolvent crystallization model. A population balance approach is adopted to describe the dynamic change of particle size in crystallization processes under the effect of antisolvent addition. Maximum likelihood method is used to identify the nucleation and growth kinetic models using data derived from controlled experiments. The model is then validated experimentally under a new solvent feedrate profile and showed to be in good agreement. The resulting model is directly exploited to understand antisolvent crystallization behavior under varying antisolvent feeding profiles. More significantly, the model is proposed for the subsequent step of model-based optimization to readily develop optimal antisolvent feeding recipes attractive for pharmaceutical and chemicals crystallization operations.
ISSN:0009-2509
1873-4405
DOI:10.1016/j.ces.2008.08.003