Photocatalyst Gas Module with Solvent Extraction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for removing volatile organic compounds (VOCs) from airborne molecular contaminants in semiconductor manufacturing face inefficiencies, particularly with photocatalysts where product accumulation reduces reaction rates and overall efficiency.
Innovation Solution
A gas processing module and method that utilizes a photocatalyst in conjunction with a solvent, where the gas-phase organic compounds are processed by coming into contact with the photocatalyst under ultraviolet light, and the organic compound products are dissolved in the solvent, allowing for enhanced removal and increased reaction rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a photocatalyst is used for reaction processing to remove VOCs, then the removal capability for alcohol, ketone, acid and ester compounds is improved, but the reaction rate is reduced due to product accumulation on the photocatalyst surface
Solution Approach 1:
The patent extracts the reaction products from the photocatalyst surface by introducing a solvent that selectively dissolves the organic compound products. This separation prevents product accumulation and maintains high reaction rates while preserving the photocatalyst's ability to process various VOC types.
Solution Approach 2:
The patent introduces a solvent as an intermediary substance that mediates between the photocatalyst and the organic compounds. The solvent dissolves the reaction products and facilitates their removal from the photocatalyst surface, enabling continuous high-rate reaction without product inhibition.
2Quantity of substance
If activated carbon materials are used for adsorption, then the physical adsorption effect on alkane, alkene, ether and benzene compounds is improved, but the adsorption effect on alcohol, ketone, acid and ester compounds is poor
Solution Approach 1:
The patent changes the fundamental mechanism from physical adsorption to photocatalytic reaction. This parameter change enables the system to effectively process alcohol, ketone, acid and ester compounds that are poorly adsorbed by activated carbon, while the solvent system ensures continuous reaction by removing products.
Solution Approach 2:
The patent creates a composite system combining photocatalyst, solvent, and ultraviolet light source. This composite approach overcomes the limitations of single-material adsorption systems, providing both broad compound coverage and sustained reaction capability through the synergistic interaction of its components.
3Device complexity
If the photocatalyst surface accumulates organic compound products, then the reaction rate is reduced, but the system structure remains simple
Solution Approach 1:
The patent ensures continuous useful action by continuously removing reaction products from the photocatalyst surface via solvent flow. This prevents the accumulation that would otherwise stop the reaction, maintaining continuous high-rate processing without requiring complex periodic regeneration systems.
Solution Approach 2:
The solvent acts as an intermediary that continuously extracts products from the photocatalyst surface, enabling sustained reaction activity. This simple intermediary mechanism maintains high productivity without adding significant 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
The proposed solution effectively enhances the removal of gas-phase organic compounds by promoting continuous reaction rates through the use of a solvent to dissolve and remove organic compound products from the photocatalyst surface, thereby improving processing efficiency.
Implementation Method 1
at least a portion of the gas-phase organic compound of the to-be-processed gas which comes into contact with the photocatalyst generates an organic compound product under the action of the photocatalyst when irradiated by the first light
Implementation Method 2
the organic compound product can be dissolved into the solvent, wherein the solubility of the organic compound product in the solvent is higher than that of the gas-phase organic compound in the solvent
Data Source
AI summary
The present invention provides a gas processing module, a gas processing method and a gas-phase organic compound processing method. A gas processing module comprises a cavity, a gas input unit, a light source, a photocatalyst, a liquid input unit, a gas discharge unit and a liquid discharge unit. The gas input unit is communicated with the inside of the cavity and used for supplying a to-be-processed gas comprising a gas-phase organic compound into the cavity. The light source is arranged in the cavity and used for providing a first light. The photocatalyst is arranged in the cavity, and at least a portion of the gas-phase organic compound of the to-be-processed gas which comes into contact with the photocatalyst generates an organic compound product under the action of the photocatalyst when irradiated by the first light. The liquid input unit is communicated with the inside of the cavity and used for providing a solvent to come into contact with the surface of the photocatalyst, and the organic compound product can be dissolved into the solvent.