Chromatograph System Dynamic Parameter Control
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Solution Overview
Problem
Current chromatograph systems can optimize reaction product production for a short period but struggle to maintain stability over a long duration, making them impractical for continuous use.
Innovation Solution
A chromatograph system comprising an analyzer and a controller that dynamically adjusts residence time, reaction temperature, and reaction pressure of liquid raw materials in a reactor to maintain a reference value within set limits, ensuring continuous production of a reaction product with predetermined quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a chromatograph system is used to optimize reaction product production, then the yield or purity can be improved for a short period, but the system cannot maintain stable production continuously over a long period
Solution Approach 1:
The system implements a closed-loop feedback control mechanism where the analyzer continuously monitors the reaction product quality (yield or purity), and the controller automatically adjusts reaction parameters (residence time, temperature, pressure) based on the analyzed data to maintain quality within a predetermined range, enabling continuous stable production
Solution Approach 2:
The system dynamically adjusts reaction parameters in real-time based on continuous analysis results. The controller modifies residence time, temperature, and pressure dynamically to compensate for variations and maintain optimal production conditions throughout extended operation periods
2Duration of action of stationary object
If reaction parameters are dynamically adjusted to maintain quality, then continuous stable production can be achieved, but the system complexity increases
Solution Approach 1:
The controller integrates multiple functions including data acquisition from the analyzer, data processing, parameter calculation, and automatic control execution into a single multi-functional device. This consolidation manages system complexity while enabling comprehensive dynamic adjustment of reaction parameters
3Stability of the object's composition
If real-time analysis and dynamic control are implemented, then production stability is improved, but the time required for analysis and control cycles increases
Solution Approach 1:
The system operates with continuous analysis and continuous control adjustment, eliminating idle periods between measurement and action. The analyzer continuously monitors reaction product quality, and the controller continuously adjusts parameters based on real-time data, maintaining uninterrupted optimal production conditions
Data Source
AI summary
A first liquid raw material and a second liquid raw material are reacted with each other by a reactor of a reaction device, so that a reaction product is produced. The reaction product is analyzed by an analyzer. In the controller, the reference value is acquired by the reference value acquirer from the chromatogram obtained from the result of the analysis by the analyzer. An upper limit value and a lower limit value with respect to the reference value are set by an allowable range setter. At least one of a residence time of the first liquid raw material, a residence time of the second liquid raw material, a reaction temperature, and a reaction pressure in the reactor is dynamically changed as a control target by a reaction controller such that the reference value falls between the upper limit value and the lower limit value.