Acid Gas Adsorption Segmentation for Uniform CO2 Desorption
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Solution Overview
Problem
Existing carbon dioxide adsorption devices face challenges in uniformly desorbing CO2 due to non-uniform flow of desorption gas and temperature distribution, leading to incomplete desorption.
Innovation Solution
The device incorporates a first and second adsorption portion with spaced flow passages, allowing uniform desorption gas flow through a defined passage between them, maintaining temperature uniformity and enhancing CO2 desorption stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a pellet structure is used for the carbon dioxide adsorption part, then the adsorption material can be packed densely, but it becomes difficult to cause the desorption gas to flow uniformly through the entirety of the adsorption part
Solution Approach 1:
The adsorption part is divided into multiple segments (first adsorption portion and second adsorption portion) with flow passages arranged in parallel. This segmentation allows uniform distribution of desorption gas across all segments while maintaining high material density within each segment, resolving the contradiction between dense packing and uniform flow.
2Quantity of substance
If the desorption gas flows through a long distance in the adsorption part, then more adsorption material can be contacted, but the temperature of the desorption gas decreases as it flows downstream
Solution Approach 1:
The adsorption part is divided into multiple segments (first adsorption portion and second adsorption portion) with flow passages arranged in parallel. This segmentation shortens the flow distance in each segment while maintaining sufficient contact with adsorption material, preventing excessive temperature drop and ensuring complete desorption.
3Loss of energy
If the desorption gas temperature decreases due to long flow distance, then energy is conserved, but CO2 cannot be sufficiently desorbed from the adsorption material
Solution Approach 1:
The adsorption part is divided into multiple segments (first adsorption portion and second adsorption portion) with flow passages arranged in parallel. This segmentation optimizes the balance between energy conservation and desorption efficiency by reducing flow distance to maintain adequate temperature while still providing sufficient contact time and material interaction for complete CO2 desorption.
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
Ensures stable and uniform desorption of CO2 by minimizing flow distance and temperature distribution, improving desorption efficiency.
Implementation Method 1
after a carbon dioxide adsorption material adsorbs CO2 at a predetermined adsorption temperature
Implementation Method 2
when the adsorption material is heated to a desorption temperature exceeding the adsorption temperature, CO2 that has been adsorbed by the carbon dioxide adsorption material is desorbed
Data Source
AI summary
An acid gas adsorption device includes a first adsorption portion and a second adsorption portion. The second adsorption portion is arranged on a downstream side of the first adsorption portion in a direction of passage of a target gas to be treated so as to be spaced apart from the first adsorption portion. The first adsorption portion includes first flow passages, and the second adsorption portion includes second flow passages. A first desorption gas flow passage communicating with the first flow passages and the second flow passages is defined between the first adsorption portion and the second adsorption portion in the direction of passage of the target gas to be treated.