Condenser Spray System for Aromatic Vinyl Polymer Volatile Recovery
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Solution Overview
Problem
The existing methods for preparing aromatic vinyl compound-vinyl cyanide compound polymers face inefficiencies in condensation, leading to the discharge of uncondensed volatile components, which incur significant wastewater treatment costs and environmental pollution due to limitations in refrigerant temperature and condensation efficiency, especially with vinyl cyanide monomers of low boiling points.
Innovation Solution
The method involves using one or more condensers in series and spraying an organic solvent or aromatic vinyl monomer onto the volatile components being transferred between condensers to enhance condensation efficiency, reducing the amount of residual monomers and solvents discharged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the temperature of the refrigerant is lowered to improve condensation efficiency, then condensation efficiency is improved, but due to installation limitations, there is a limit in lowering the temperature, resulting in discharge of uncondensed volatile components
Solution Approach 1:
The condensation system is divided into multiple stages with multiple condensers connected in series. Each condenser handles a portion of the condensation process, allowing progressive cooling and condensation of volatile components at different temperature levels, thereby improving overall condensation efficiency without requiring extreme refrigerant temperatures in a single stage
Solution Approach 2:
Organic solvent is sprayed onto volatile components before they enter the condenser(s). This preliminary action pre-cools the volatile components and facilitates more effective condensation in the subsequent condensation stage, reducing the discharge of uncondensed volatile components
2Productivity
If the pressure in the condensers is increased to improve condensation efficiency, then condensation efficiency is improved, but the amount of equipment and system complexity increases
Solution Approach 1:
The condensation process is segmented into multiple condensers connected in series, with each condenser operating at optimized pressure and temperature conditions. This segmentation allows each unit to be simpler in design while collectively achieving high condensation efficiency
Solution Approach 2:
Organic solvent acts as an intermediary substance that is sprayed onto volatile components. This intermediary facilitates heat transfer and condensation without requiring extreme pressure or temperature conditions, simplifying the overall system design while maintaining high condensation efficiency
3Productivity
If two or more condensers connected in series are used to improve condensation efficiency, then condensation efficiency is improved, but the device complexity and installation space requirements increase
Solution Approach 1:
The condensation system is divided into multiple condensers connected in series, with each condenser handling a specific portion of the volatile components. This segmentation enables each condenser to be optimized for specific conditions, improving overall efficiency while allowing modular installation that can adapt to space constraints
Solution Approach 2:
Each condenser in the series serves multiple functions: condensing volatile components, cooling the gas stream, and preparing the mixture for the next condensation stage. This multi-functionality reduces the need for additional specialized equipment, thereby limiting the increase in overall system 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 significantly reduces the discharge of volatile components into the atmosphere and wastewater treatment costs, improving condensation efficiency and minimizing environmental pollution by effectively condensing volatile components.
Implementation Method 1
condensation of the separated volatile components is performed using a condenser
Implementation Method 2
spraying an organic solvent onto the separated volatile components being transferred from the volatilization tank to the condenser
Data Source
AI summary
The present invention relates to a method of preparing an aromatic vinyl compound-vinyl cyanide compound polymer including a step of separating volatile components from a polymerization product containing an aromatic vinyl compound-vinyl cyanide compound polymer, a residual aromatic vinyl monomer, a residual vinyl cyanide monomer, and an organic solvent using a volatilization tank, and a step of condensing the separated volatile components using a condenser, wherein an organic solvent or an aromatic vinyl monomer is sprayed onto the volatile components being transferred to the condenser. Volatile components may be fully condensed in a condenser, thereby significantly reducing the amount of volatile components discharged to the outside without being condensed. Therefore, wastewater treatment costs consumed in treating the volatile components may be reduced, and the amount of vinyl cyanide monomers harmful to the human body discharged into the atmosphere may be significantly reduced.