3D Patterned CO2 Adsorption Filter with Stacked Unit Modules
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Solution Overview
Problem
Existing carbon dioxide adsorption filters face limitations in increasing the surface area for contact with carbon dioxide, which hampers adsorption efficiency and scalability.
Innovation Solution
The filter comprises multiple unit filters with a three-dimensional patterned part that forms flow paths with a large exposed surface area, coated with a carbon dioxide adsorption layer, enhancing the specific surface area and adsorption efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If conventional electrospinning method is used to grow porous adsorbent into mat form, then the filter structure is simple to manufacture, but the surface area for carbon dioxide contact is limited and adsorption capacity cannot be expanded
Solution Approach 1:
The patent transitions from a two-dimensional flat mat structure to a three-dimensional patterned structure with protrusions and recesses. The unit filter includes a substrate with three-dimensional patterns that create multiple levels and surfaces, dramatically increasing the contact surface area for carbon dioxide adsorption while maintaining a compact overall form factor.
Solution Approach 2:
The filter is divided into multiple unit filters that can be connected and stacked together. Each unit filter contains a substrate with three-dimensional patterns, and multiple units can be combined to scale up the adsorption capacity. This modular approach allows the surface area to be expanded without proportionally increasing the complexity of individual components.
2Productivity
If simple surface adsorbent is used, then the manufacturing process is simple, but the contact efficiency for carbon dioxide adsorption is difficult to improve
Solution Approach 1:
The adsorbent surface is transformed from a simple two-dimensional plane to a three-dimensional patterned structure with protrusions and recesses. This creates multiple exposed surfaces that increase the contact area with carbon dioxide molecules, thereby improving adsorption efficiency without requiring complex manufacturing processes.
3Quantity of substance
If multiple unit filters are connected and stacked to expand capacity, then the adsorption capacity is improved, but the device complexity increases
Solution Approach 1:
The filter system is segmented into multiple identical or similar unit filters that can be connected and stacked. Each unit filter contains a substrate with three-dimensional patterns and adsorption layers. This modular design allows the adsorption capacity to be scaled by simply adding more units rather than redesigning the entire system, making the complexity increase manageable and linear rather than exponential.
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 configuration significantly increases the contact surface area, enhances adsorption efficiency by increasing contact and retention time, and improves scalability by allowing unit filters to be connected and stacked.
Implementation Method 1
a carbon dioxide adsorption layer which is coated on the surface of the exposed area
Data Source
AI summary
The filter for carbon dioxide adsorption according to the present invention is composed of multiple unit filters that are mutually connected and stacked, and the unit filters include a repeating three-dimensional patterned part formed using one selected from vat photopolymerization, powder bed fusion, or additive manufacturing processes; flow paths formed in the three-dimensional patterned part; a three-dimensional exposed surface that is exposed to the mixed gas flowing through the flow paths; and a carbon dioxide adsorption layer coated on the exposed surface.