Merging Absorption Towers to Single Regeneration Tower
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Solution Overview
Problem
The high cost of installing a carbon dioxide recovery system for factories with multiple combustion equipment scattered over a wide area, due to the need for multiple absorption and regeneration towers, makes the conventional method impractical.
Innovation Solution
A carbon dioxide recovery system with a smaller number of regeneration towers and multiple absorption towers, connected via ducts, where CO2-rich absorption liquids from each tower are merged and processed in a single regeneration tower, reducing the overall installation cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If one absorption tower and one regeneration tower are provided for each combustion equipment, then carbon dioxide recovery effectiveness is improved, but installation cost increases
Solution Approach 1:
Multiple absorption towers are merged into a single regeneration tower system. The patent configures several absorption towers (first, second, third absorption towers) to separately treat exhaust gases from different combustion equipment, while their rich absorption liquids are collectively regenerated in one shared regeneration tower, reducing overall system complexity and installation cost while maintaining recovery effectiveness
Solution Approach 2:
The system segments the carbon dioxide recovery process into independent absorption units and a centralized regeneration unit. Each absorption tower operates independently to absorb CO2 from specific combustion equipment, while the regeneration function is segmented and consolidated into a single dedicated regeneration tower, allowing modular configuration and reduced infrastructure cost
2Reliability
If absorption tower and regeneration tower are provided for each combustion equipment, then carbon dioxide recovery performance is improved, but device complexity increases
Solution Approach 1:
The regeneration functions of multiple absorption towers are merged into a single regeneration tower. Rich absorption liquids from the first, second, and third absorption towers are collectively fed into one regeneration tower for CO2 desorption, consolidating the regeneration subsystem and reducing device complexity while maintaining overall recovery performance
Solution Approach 2:
The single regeneration tower serves multiple absorption towers simultaneously, performing a universal regeneration function for the entire system. This multi-functional configuration allows one regeneration tower to process rich absorption liquids from multiple different absorption towers, reducing the total number of regeneration towers needed
3Productivity
If multiple absorption towers and regeneration towers are installed, then carbon dioxide recovery capability is improved, but installation cost increases
Solution Approach 1:
Multiple absorption towers are combined with a single regeneration tower in a unified system. The patent configures several absorption towers to maintain high CO2 recovery capability across multiple combustion equipment, while merging their regeneration needs into one shared regeneration tower, thereby preserving productivity while reducing installation cost
Solution Approach 2:
The system segments CO2 recovery into independent absorption stages and a centralized regeneration stage. Each absorption tower can independently handle CO2 absorption from specific combustion equipment, maintaining recovery capability, while the regeneration function is segmented and consolidated into a single cost-effective unit
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 allows for a significant reduction in installation costs and carbon dioxide recovery costs by minimizing the number of regeneration towers and optimizing duct arrangements, making the system more feasible for widespread implementation.
Implementation Method 1
absorbing carbon dioxide in an exhaust gas discharged from each of a plurality of combustion equipments into an absorption liquid by bringing the exhaust gas into contact with the absorption liquid
Implementation Method 2
recovering carbon dioxide by separating carbon dioxide from the absorption liquid that has absorbed carbon dioxide
Data Source
AI summary
A carbon dioxide recovery system includes: a plurality of absorption towers each disposed for each of a plurality of combustion equipments for absorbing carbon dioxide in an exhaust gas discharged from each of the plurality of combustion equipments into an absorption liquid by bringing the exhaust gas into contact with the absorption liquid; and at least one regeneration tower communicating with each of the plurality of absorption towers, for recovering carbon dioxide from a CO2 rich absorption liquid which is the absorption liquid flowing out of each of the plurality of absorption towers. The regeneration tower is smaller in number than the absorption towers.