期刊
AICHE JOURNAL
卷 69, 期 2, 页码 -出版社
WILEY
DOI: 10.1002/aic.17926
关键词
continuous pharmaceutical manufacturing; process control; quality-by-design; real-time optimization; soft sensor
This study presents a process control framework for a continuous carousel that improves consistency in product quality and increases productivity. The proposed control system outperforms simpler methods and open-loop operation, proving the benefits of closed-loop control and model-based techniques in pharmaceutical manufacturing.
Continuous manufacturing and closed-loop quality control are emerging technologies that are pivotal for next-generation pharmaceutical modernization. We develop a process control framework for a continuous carousel for integrated filtration-drying of crystallization slurries. The proposed control system includes model-based monitoring and control routines, such as state estimation and real-time optimization, implemented in a hierarchical, three-layer quality-by-control (QbC) framework. We implement the control system in ContCarSim, a publicly available carousel simulator. We benchmark the proposed control system against simpler methods, comprising a reduced subset of the elements of the overall control system, and against open-loop operation (the current standard in pharmaceutical manufacturing). The proposed control system demonstrates superior performance in terms of higher consistency in product quality and increased productivity, proving the benefits of closed-loop control and of model-based techniques in pharmaceutical manufacturing. This study represents a step forward toward end-to-end continuous pharmaceutical processing, and in the evolution of quality-by-design toward quality-by-control.
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