A Novel Simulated Moving Plug Flow Crystallizer (SM-PFC) for Addressing the Encrustation Problem: Simulation-Based...

Area of Science:

• Chemical Engineering
• Pharmaceutical Manufacturing

Background:

• Continuous manufacturing is advancing in the pharmaceutical industry, with plug flow crystallizers (PFCs) showing promise.
• Encrustation and fouling in PFCs are significant concerns, leading to process disruptions and shutdowns.

Purpose of the Study:

• To explore the feasibility of a novel simulated-moving plug flow crystallizer (SM-PFC) configuration.
• To address the issue of fouling in PFCs and enable uninterrupted operation.

Main Methods:

• Simulation studies were conducted to evaluate the SM-PFC concept.
• The SM-PFC design involves isolating fouled segments while introducing clean segments online.

Main Results:

• The SM-PFC configuration effectively mitigates fouling-related issues.
• Continuous operation was maintained even with heavy fouling, without impacting critical quality attributes.

Conclusions:

• The simulated-moving plug flow crystallizer (SM-PFC) presents a viable solution for continuous pharmaceutical manufacturing.
• This approach overcomes the challenge of encrustation, ensuring consistent product quality and process reliability.