Ion-Exchange Resin Purification Tower Liquid Level Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for purifying aqueous hydrogen peroxide solutions using ion-exchange resins face challenges such as gas generation due to resin exposure, reduced maintenance rates of reverse osmosis membranes, and limitations in expanding facilities to improve purification efficiency.
Innovation Solution
A method and apparatus that involve passing the aqueous hydrogen peroxide solution from top to bottom through an ion-exchange resin in a purification tower, with a discharge pipe having a liquid level maintenance portion that ensures the resin remains submerged, thereby stabilizing gas discharge and maintaining process stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If an upflow process is used to allow gas discharge, then gas can be smoothly discharged, but the ion-exchange resin floats upward requiring facility expansion
Solution Approach 1:
The patent inverts the conventional upflow process by implementing a downflow process where the aqueous hydrogen peroxide solution flows from top to bottom through the ion-exchange resin. This inversion allows the resin to remain stationary at the bottom of the purification tower while still enabling gas discharge through the downward flow mechanism, eliminating the need for facility expansion.
2Productivity
If a downflow process is used to improve productivity, then facility expansion is avoided, but the ion-exchange resin may be exposed to air and dried
Solution Approach 1:
The patent incorporates a liquid level maintenance portion in the discharge pipe that provides feedback control of the liquid level in the purification tower. When the liquid level drops and exposes the ion-exchange resin, the system automatically adjusts to restore the liquid level, ensuring the resin remains continuously submerged and preventing drying while maintaining the downflow process efficiency.
3Object-generated harmful factors
If the liquid level is not maintained, then gas generation increases due to resin exposure, but maintaining liquid level requires additional control mechanisms
Solution Approach 1:
The liquid level maintenance portion is designed to automatically maintain the liquid level without requiring external control systems. The structure itself provides the control function by utilizing the flow dynamics and geometry of the discharge pipe to self-regulate the liquid level, ensuring the ion-exchange resin remains submerged while avoiding complex additional control mechanisms.
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 maintains a constant liquid level in the purification tower, prevents resin drying, reduces unwanted gas generation, and enhances ion exchange performance, thereby improving the purity and productivity of the aqueous hydrogen peroxide solution without excessive facility expansion.
Implementation Method 1
purification of an aqueous hydrogen peroxide solution by introducing the aqueous hydrogen peroxide solution into a purification tower containing an ion-exchange resin
Implementation Method 2
a discharge pipe connected to the bottom of the purification tower and including a liquid level maintenance portion
Implementation Method 3
when hydrogen peroxide comes into contact with the ion-exchange resin, the decomposition reaction of the hydrogen peroxide occurs, resulting in heat or gas generation
Data Source
AI summary
The present disclosure relates to a method and an apparatus for purifying an aqueous hydrogen peroxide solution. According to the present disclosure, it is possible to provide a method and an apparatus for purifying an aqueous hydrogen peroxide solution, which may control a generated gas because there is no partial drying of an ion-exchange resin when purifying the aqueous hydrogen peroxide solution using the ion-exchange resin, require no facility expansion, and may provide a high-purity aqueous hydrogen peroxide solution.