Conceptual Approach for Lab‐Scale Vacuum DTB Crystallizer with Online Monitoring and Flexible Process Functionalities for Rapid Process Adjustment

Abstract Modular production concepts offer a promising solution to enhance adaptability and reduce development time in the process industry. This work presents a modular approach for continuous crystallization using a draft tube baffle crystallizer (DTBC). By dividing the DTBC setup into process equipment assemblies, the rapid reconfiguration of the crystallizer setup is achieved. Emphasis is placed on real‐time process monitoring, particularly electrochemical impedance spectroscopy (EIS), which enables detection of solute concentration and solid content, even under vacuum conditions. Integrated with the process control system, EIS combined with AI‐based image analysis enables the flexible monitoring of the crystallization process and supports a deeper understanding of crystallization dynamics.