Composite Adsorption Decomposition Filter for Air Purification
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Solution Overview
Problem
Existing air purification methods, such as adsorption and thermal oxidation, face challenges with secondary contamination and economic inefficiency, particularly due to the need for high-temperature operations and costly filter replacements.
Innovation Solution
A composite material for air purification that combines an adsorption component and a decomposition component, where the decomposition onset temperature is equal to or lower than the desorption onset temperature, preventing secondary contamination and allowing for efficient contaminant removal without high-temperature operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If thermal oxidation method is used to remove contaminants, then contaminant removal efficiency is improved, but energy consumption increases due to high-temperature operation requirement
Solution Approach 1:
The filter is divided into two distinct functional layers: an adsorption layer for capturing contaminants at lower temperatures and a decomposition layer for breaking down contaminants at higher temperatures. This segmentation allows each layer to operate at its optimal temperature range, reducing overall energy consumption while maintaining effective contaminant removal.
Solution Approach 2:
The patent changes the temperature parameter profile through which the filter operates by using the adsorption layer first at lower temperatures, then transferring selected contaminants to the decomposition layer at higher temperatures. This dynamic parameter change optimizes energy usage by avoiding continuous high-temperature operation.
2Reliability
If adsorption removal method is used, then contaminant capture is improved, but secondary contamination occurs during filter replacement or regeneration
Solution Approach 1:
The patent extracts the decomposition function from the adsorption filter and places it in a separate decomposition layer. This extraction allows contaminants to be broken down in situ within the filter structure, preventing secondary contamination during filter replacement or regeneration.
Solution Approach 2:
The patent converts the potentially harmful adsorbed contaminants into beneficial breakdown products by incorporating a decomposition layer that thermally decomposes the contaminants. This transforms the harmful accumulated contaminants into harmless substances, eliminating the secondary contamination problem.
3Duration of action of stationary object
If filter regeneration is performed, then filter reuse is improved, but economic efficiency decreases due to additional processing requirements
Solution Approach 1:
The filter performs self-regeneration through its dual-layer structure. The decomposition layer automatically breaks down accumulated contaminants during normal operation or simple heating cycles, enabling the filter to restore its capacity without external regeneration processes, thereby improving economic efficiency.
Solution Approach 2:
The patent enables continuous operation of the filter by incorporating a decomposition layer that can break down contaminants in situ. This allows the filter to maintain its cleaning function continuously without interruption for regeneration, extending service life and improving economic efficiency.
4Reliability
If high-temperature operation is maintained continuously, then contaminant decomposition is improved, but operational complexity increases
Solution Approach 1:
The patent employs periodic heating cycles rather than continuous high-temperature operation. The decomposition layer is activated at high temperature only when needed to break down accumulated contaminants, while the adsorption layer handles normal contaminant capture at lower temperatures. This periodic action reduces operational complexity while maintaining decomposition efficiency.
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 solution effectively prevents secondary contamination and enhances economic efficiency by allowing for easy regeneration and extended filter replacement cycles, maintaining high contaminant removal efficiency across varying concentrations without consistent high-temperature operation.
Implementation Method 1
a material for adsorption of a contaminant
Implementation Method 2
a material for decomposition of a contaminant
Implementation Method 3
a decomposition onset temperature of the material for decomposition of a contaminant
Data Source
AI summary
A material for removing a contaminant, the material including an adsorption material for adsorption of a contaminant and a decomposition material for decomposition of a contaminant, wherein the adsorption material and the decomposition material are complexed with each other, and a contaminant decomposition onset temperature of the decomposition material is equal to or lower than a contaminant desorption onset temperature of the adsorption material.