Semi-Continuous Ester Production via Parallel Batch Reactors
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Solution Overview
Problem
Existing methods for manufacturing ester-based compositions using batch reactors are inefficient and lack stability due to discontinuous operation, leading to suboptimal reaction conditions and productivity.
Innovation Solution
A method involving a plurality of batch reactors connected in parallel, where a reaction mixture of polycarboxylic acid and alcohol is sequentially injected and processed, allowing for semi-continuous operation to ensure stability and efficiency by controlling the injection and discharge of the reaction mixture through a supply control unit and separation unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single batch reactor is used for esterification reaction, then the operation is simple and stable, but the productivity is low due to discontinuous operation and downtime between batches
Solution Approach 1:
The single batch reactor is segmented into multiple batch reactors (first batch reactor, second batch reactor, third batch reactor, fourth batch reactor) connected in parallel. This allows the reaction process to be divided into multiple independent units that can operate in sequence, thereby increasing overall productivity while maintaining the simplicity and stability of individual batch reactor operations.
Solution Approach 2:
The patent implements a semi-continuous operation mode where the multiple batch reactors work in sequence with coordinated injection and discharge timing. While individual reactors operate in batch mode, the overall system achieves continuous production by eliminating idle time between batches through the use of multiple reactors, thus maintaining continuity of useful action.
2Productivity
If multiple batch reactors operate in parallel with simultaneous injection, then the productivity increases, but the reaction conditions become unstable and difficult to control
Solution Approach 1:
The patent implements periodic action by controlling the injection and discharge of reaction mixtures in a sequential, time-coordinated manner across multiple batch reactors. Each reactor receives the reaction mixture at different time intervals, allowing for stable and controllable reaction conditions while maintaining high productivity through the periodic cycling of injection and discharge operations.
Solution Approach 2:
The supply control unit performs preliminary action by pre-coordinating the injection timing and sequence for each batch reactor before the reaction begins. This advance planning and control of injection sequences ensures that each reactor receives materials under optimal and stable conditions, preventing the instability that would arise from simultaneous or uncoordinated injection.
3Ease of operation
If the reaction mixture is injected into all batch reactors simultaneously, then the process is simple to operate, but the productivity is limited by the sequential discharge requirement
Solution Approach 1:
The patent applies dynamics by transitioning from static simultaneous injection to dynamic sequential injection across multiple batch reactors. The supply control unit dynamically adjusts the injection timing and sequence for each reactor, allowing the system to adaptively optimize both operational simplicity and productivity through coordinated, time-varying injection patterns.
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 enables stable and efficient semi-continuous production of ester-based compositions by maintaining uniform reaction conditions across all reactors, minimizing downtime, and optimizing the use of resources, thereby enhancing overall process efficiency and product quality.
Implementation Method 1
a reaction unit provided with N number of batch reactors connected in parallel in which an esterification reactor of the reaction mixture is performed
Data Source
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AI summary
The present invention relates to a method and a system for manufacturing an ester-based composition which are characterized in sequentially operating a plurality of batch reactors, and since an ester-based composition is semi-continuously manufactured, the productivity is high and the stability of a batch reactor is secured.