Recyclable Ceramic Catalyst Filter for VOC and Fine-Dust Removal
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Solution Overview
Problem
Existing air filters are limited in their ability to simultaneously filter both particulate and gaseous pollutants effectively and are not designed for recyclability.
Innovation Solution
A recyclable ceramic catalyst filter with a monolithic structure featuring parallel first and second surfaces, where the second surface acts as a catalyst layer activated by various forms of energy to remove volatile organic compounds (VOC) and particulate matter, utilizing a filtering system with an energy supply device for catalyst activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional filters are used to filter particulate matter, then fine dust can be removed, but gaseous pollutants like VOCs cannot be effectively removed
Solution Approach 1:
The filter is designed with dual functionality: a physical filtration layer for particulate matter and a catalyst layer for gaseous VOC removal. The catalyst layer contains catalyst particles dispersed on a support, which chemically decompose VOCs when exposed to light or heat, enabling the single filter to handle both particle and gas pollutants simultaneously.
Solution Approach 2:
The filter combines different material types in a single structure: filtration materials (fibers or foam) for particulate removal and catalytic materials (metal oxides or activated carbon) for gaseous removal. This composite approach allows each material to perform its specialized function while working together in an integrated filter system.
2Reliability
If filters are designed for high filtration efficiency, then pollutant removal performance improves, but recyclability and reusability are compromised
Solution Approach 1:
The filter is designed to be regenerated and reused multiple times. The catalyst layer can be reactivated by exposing it to light or heat sources, and the physical filtration layer can be cleaned and reused. This regeneration capability extends the filter's service life and reduces waste, making it economically viable for long-term operation.
Solution Approach 2:
The catalyst layer is designed to self-regenerate through exposure to light or heat, which reactivates the catalyst particles without requiring replacement. This self-service mechanism maintains filtration performance over time while eliminating the need for frequent filter replacements.
3Adaptability or versatility
If a catalyst layer is added to the filter, then VOC removal capability improves, but device complexity increases
Solution Approach 1:
The catalyst layer is integrated directly onto the filtration layer in a single unified structure. The catalyst particles are dispersed on the support material that forms part of the filtration layer, eliminating the need for separate components. This merging of functions reduces structural complexity while maintaining both particulate and gaseous removal capabilities.
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 ceramic catalyst filter efficiently filters both particulate and gaseous pollutants, enabling simultaneous removal of VOCs and micro-dust, with the ability to be reused through energy-activated catalyst layers.
Implementation Method 1
a part that is activated and functions as a catalyst layer which removes the second material in response to energy supplied to the second surface
Implementation Method 2
A Filter against fine dust is manufactured by using a melt blown technique, woven into glass fibers or plastics, or manufactured in a nonwoven form
Implementation Method 3
a HEPA filter exhibits excellent performance of filtering 0.3 micrometers (μm)-sized fine dust particles up to 99.97% by adsorption
Implementation Method 4
The catalyst material may be a photo-catalyst material. In this case, the second surface may be activated by an optical energy
Implementation Method 5
The catalyst material may be a thermal catalyst material. In this case, the second surface may be activated by a thermal energy
Data Source
AI summary
A recyclable ceramic catalyst filter, a filtering system including the same, and a method of managing the filtering system are provided. The ceramic catalyst filter has a monolithic structure including a first surface which blocks a first material; and a second surface which removes a second material that passed through the first surface, where the second surface is activated and operates as a catalyst layer which removes the second material in response to energy supplied to the second surface.