Continuous Esterification Purification System Reducing Wastewater
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Solution Overview
Problem
Current methods for purifying reaction products of esterification generate significant wastewater containing lower alcohols, which is difficult to separate efficiently, leading to increased costs and energy consumption.
Innovation Solution
A continuous purification system with a neutralizer having a partition wall structure for layer separation, followed by a distiller for alcohol-rich stream removal and a product purifier for ester fraction separation, reduces wastewater volume and efficiently separates lower alcohols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional purification methods are used for esterification reaction products, then the purification process can be completed, but significant wastewater containing lower alcohols is generated which is difficult to separate efficiently
Solution Approach 1:
The purification process is divided into multiple sequential stages: neutralization stage, decantation stage, and distillation stage. Each stage targets specific components and achieves partial separation objectives, with the distillation stage specifically addressing lower alcohol removal to minimize wastewater volume while maintaining purification efficiency.
2Ease of operation
If conventional batch purification processes are used, then the process is simpler to operate, but the separation efficiency of lower alcohols is insufficient and energy consumption is high
Solution Approach 1:
The invention employs a continuous purification process where the reaction mixture flows continuously through the neutralization reactor, decantation separator, and distillation column. This continuous operation maintains constant separation action, improving lower alcohol removal efficiency and energy utilization compared to intermittent batch processes, while maintaining operational simplicity through standardized equipment design.
3Manufacturing precision
If multiple purification stages are implemented to improve separation efficiency, then the purity of the ester product increases, but the device complexity and cost increase
Solution Approach 1:
The invention combines neutralization, decantation, and distillation functions into an integrated continuous purification system. The neutralization reactor simultaneously performs chemical neutralization and initial phase separation, the decantation separator efficiently divides organic and aqueous layers, and the distillation column completes the purification. This merged approach achieves high product purity while avoiding the complexity of multiple separate batch treatment units.
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
The system significantly reduces the amount of wastewater containing lower alcohols and enhances the separation efficiency of the purification process, resulting in a more economical and environmentally friendly process design.
Implementation Method 1
separating the reaction mixture into an organic layer and a water layer
Implementation Method 2
separating the reaction mixture into an organic layer and a water layer
Implementation Method 3
distilling the organic layer to separate lower alcohol
Implementation Method 4
continuous purification system that removes neutralization agents and salts
Data Source
AI summary
The present invention relates to a system for continuously purifying a reaction product of esterification and a method for continuously purifying a reaction product of esterification, the method which may be implemented through the continuous purification system, wherein the system includes a neutralizer, a distiller and a product purifier, wherein the inner space of the neutralizer is provided with one or more partition walls such that the inner space is divided into a neutralization space and a layer separation space in the left and right directions respectively and a passage connecting the two spaces is formed, and the passage starts from an upper portion of the neutralization space. Through the present invention, it is possible to perform a continuous purification process efficiently, and to reduce lower alcohol wastewater generated during purification.