Stochastic approach for the calculation of anti-solvent addition policies in crystallization operations: An application to a bench-scale semi-batch crystallizer

O Galán, M Grosso, R Baratti, JA Romagnoli - Chemical engineering …, 2010 - Elsevier
This work discusses a stochastic approach for the calculation of robust anti-solvent addition
policies for controlling the mean crystal size (MCS) and prediction of the crystal size …

Real‐time control of a semi‐industrial fed‐batch evaporative crystallizer using different direct optimization strategies

A Mesbah, AEM Huesman, HJM Kramer… - AIChE …, 2011 - Wiley Online Library
This article presents a model‐based control approach for optimal operation of a seeded fed‐
batch evaporative crystallizer. Various direct optimization strategies, namely, single …

A modified method for modelling, optimization and control of an anti-solvent crystallization process

L Sun, Y Song, B Li, G Guan, Y Jiang - Chemical Engineering Science, 2020 - Elsevier
Crystallization is a complex process of heat and mass transfer, its product quality is affected
by many factors, thus it is a challenge to control this process. Modelling and optimization of …

[PDF][PDF] Pharmaceutical Manufacturing Continuous Crystallization Procedures: A Review

SN Vaidya - Asian Journal of Pharmaceutics (AJP), 2023 - asiapharmaceutics.info
This academic publication provides an overview of constant crystallization of solutions in the
pharmaceutical industry. The comparison of continuous versus batch crystallizers, their …

Experimental evaluation of the targeted direct design of temperature trajectories for growth-dominated crystallization processes using an analytical crystal size …

E Aamir, CD Rielly, ZK Nagy - Industrial & engineering chemistry …, 2012 - ACS Publications
The paper presents an experimental validation of a novel methodology for the systematic
design of the set point operating curves for supersaturation-controlled, seeded crystallization …

Neural-Network-Based Nonlinear Model Predictive Control of Multiscale Crystallization Process

L Wang, Y Zhu - Processes, 2022 - mdpi.com
The purpose of this study was to develop an integrated control strategy for multiscale
crystallization processes. An image analysis method using a deep learning neural network …

Control of batch crystallization—A system inversion approach

U Vollmer, J Raisch - Chemical Engineering and Processing: Process …, 2006 - Elsevier
In this article, a new approach to the control of batch cooling crystallizers is presented. In
batch cooling crystallization, the crucial control problem is to design a temperature trajectory …

[HTML][HTML] Pharmaceutical crystallisation processes from batch to continuous operation using MSMPR stages: Modelling, design, and control

Q Su, ZK Nagy, CD Rielly - Chemical Engineering and Processing: Process …, 2015 - Elsevier
In pharmaceuticals manufacturing, the conversion of conventional batch crystallisations to
continuous mode has the potential for intensified, compact operation and more consistent …

Recent advances in crystallization control: an industrial perspective

ZQ Yu, JW Chew, PS Chow, RBH Tan - Chemical Engineering Research …, 2007 - Elsevier
Crystallization is the most important unit operation for the separation and purification of
chemicals in the pharmaceutical and fine chemical industries. Crystallization processes in …

Integrated B2B‐NMPC control strategy for batch/semibatch crystallization processes

Q Su, MS Chiu, RD Braatz - AIChE Journal, 2017 - Wiley Online Library
The uncertainty in crystallization kinetics is of major concern in manufacturing processes,
which can result in deterioration of most model‐based control strategies. In this study …