Flow-Through Chromatography Purge Recirculation to Reduce Feed Waste
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Solution Overview
Problem
Existing flow-through chromatography processes face challenges in accurately determining breakthrough capacities under varying process conditions, leading to inefficient operation and waste of partially purified feed material, especially in continuous chromatography systems where column identity and feed composition variability complicate optimal process design.
Innovation Solution
A method for purifying a target product in a flow-through chromatography system involves recirculating partly purified feed material back to the feed source after impurity breakthrough, utilizing a purge process to maximize resin utilization and minimize waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If breakthrough capacity is determined by collecting effluent fractions and analyzing using high resolution techniques, then measurement precision is improved, but device complexity and loss of time increase
Solution Approach 1:
The patent replaces complex mechanical fraction collection and high-resolution analysis systems with a simplified breakthrough detector that provides real-time monitoring. This substitution eliminates the need for manual fraction collection and extensive post-processing analysis, directly reducing device complexity while maintaining measurement capability.
Solution Approach 2:
The breakthrough detector performs self-contained measurement of impurity breakthrough directly in the effluent stream without requiring external fraction collection systems or complex analysis equipment. The detector autonomously identifies breakthrough points and provides capacity data, eliminating the need for additional analytical infrastructure.
2Loss of time
If breakthrough capacity is determined by continuous monitoring with breakthrough detector, then loss of time is reduced, but measurement precision deteriorates due to varying process conditions
Solution Approach 1:
The system incorporates feedback mechanisms that continuously monitor breakthrough detector signals and adjust process parameters in real-time. This feedback loop compensates for varying feed concentration and process conditions, maintaining measurement precision while preserving the time efficiency of continuous monitoring.
Solution Approach 2:
The patent dynamically adjusts operational parameters such as flow rate and detection thresholds based on real-time process conditions. By adapting these parameters to compensate for feed concentration variations and other process changes, the system maintains accurate breakthrough capacity measurements during continuous operation.
3Productivity
If column is operated to maximum binding capacity, then productivity is improved, but loss of substance increases due to waste of partially purified feed material
Solution Approach 1:
The patent implements a recovery system that captures and recycles partially purified feed material from the column effluent after breakthrough detection. Instead of discarding this material, the system recovers it and redirects it through additional purification steps or recycling loops, thereby reducing waste while maintaining high productivity.
Solution Approach 2:
The system maintains continuous operation by seamlessly transitioning between columns in a multi-column system. While one column is being purged and regenerated, another column continues to process feed material, ensuring uninterrupted productive action. This continuity eliminates idle time and maximizes resin utilization without requiring material waste.
4Productivity
If multiple columns are used in continuous chromatography, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent divides the chromatography system into multiple identical or standardized column modules that can operate in parallel. This segmentation allows for simplified design and easier maintenance, as each column unit is standardized. The modular approach increases productivity through parallel operation while keeping individual column complexity low.
Solution Approach 2:
The column system is designed with universal interfaces and standardized configurations that allow columns to perform multiple functions (loading, purification, concentration) through programmable valve arrangements. This multi-functionality reduces the need for specialized equipment for each operation, thereby increasing productivity without proportionally increasing device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances the efficiency of the chromatography process by reducing waste and optimizing feed material utilization, particularly in continuous chromatography systems with multiple columns, by allowing for continuous operation and improved resin utilization.
Implementation Method 1
binding capacity of a chromatography column for the impurities... amount of binding impurities taken up by a column
Data Source
AI summary
The present invention relates to a method for purifying a target product in a flow-through chromatography system comprises at least a first column loaded with feed material from a feed source. The at least first column is purged after binding of impurities and wherein the outlet of purged material from the column is subsequently passed to the feed source.