Integrated Cooling Absorption Tower for Compact CO2 Recovery
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Solution Overview
Problem
The existing CO2 recovery devices require separate cooling and absorption towers, increasing installation area and costs due to the need for a connection duct between them.
Innovation Solution
Integrating the cooling and absorption sections into a single outer shell, reducing the installation space and eliminating the need for a connection duct, while using a chimney tray to prevent solvent mixing and optimizing solvent transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional cooling towers are used to cool absorbent solution, then cooling function is provided, but white smoke is discharged causing environmental pollution and operational restrictions
Solution Approach 1:
The invention extracts and removes the harmful white smoke component from the cooling tower exhaust. The demisting device separates water droplets and aerosols from the air stream, extracting the harmful substance (white smoke) and preventing its discharge into the environment, thus resolving the contradiction between cooling function and environmental pollution.
Solution Approach 2:
The invention converts the harmful white smoke discharge into a beneficial environmental protection feature. By implementing the demisting device, the previously harmful exhaust is cleaned and converted into a environmentally friendly operation, allowing the cooling tower to function without causing pollution, thus transforming the harmful factor into a benefit.
2Temperature
If cooling towers operate in winter, then cooling function is provided, but frozen droplets cause equipment damage and operational restrictions
Solution Approach 1:
The invention applies beforehand cushioning by pre-heating the absorbent solution before it enters the cooling tower, and by designing the water distribution system to prevent ice formation. The heating exchanger pre-warms the solution, cushioning against the risk of freezing, while the optimized water distribution ensures proper drainage prevents ice accumulation that could damage equipment during winter operation.
Solution Approach 2:
The invention introduces heating as an intermediary process between the absorbent solution and the cooling tower. The heating exchanger acts as an intermediary device that prepares the solution at appropriate temperature before cooling, preventing direct contact between cold tower environment and vulnerable components, thus mediating the temperature conflict and preventing equipment damage.
3Productivity
If packing materials are used to increase contact area, then mass transfer efficiency is improved, but pressure loss increases
Solution Approach 1:
The invention applies parameter changes by optimizing the packing material characteristics - selecting specific packing types, sizes, and arrangements that achieve the right balance between surface area and pressure drop. By changing the physical parameters of the packing (geometry, material properties, arrangement), the system achieves high mass transfer efficiency while controlling pressure loss within acceptable limits.
4Temperature
If cooling tower size is increased to improve cooling effect, then cooling performance is enhanced, but device complexity and space requirements increase
Solution Approach 1:
The invention applies local quality by optimizing the distribution of cooling functions throughout the tower structure. The packing material is arranged to create optimal local contact zones between gas and liquid phases, ensuring efficient heat and mass transfer in specific regions. This localized optimization allows the tower to achieve high cooling performance without requiring excessive overall size, as each section contributes efficiently to the cooling process.
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
Reduces installation area and costs by integrating cooling and absorption functions in one shell, enhancing solvent handling and transfer efficiency.
Implementation Method 1
적정 온도까지 가열된 흡수액이 스프레이 노즐(131)을 통해 분사되면, 흡수액 중의 일부 물이 증발하면서 흡수액 온도를 적정 온도까지 낮춥니다
Implementation Method 2
상기 흡수탑(100)의 외벽(110)은 단열벽체(111)와 열전도벽체(112)가 혼합되어 형성된 복합벽체 구조를 가진다
Implementation Method 3
상기 흡수탑(100)의 하부에는 물을 분리·제거하는 제독장비(200)가 더 설치된다
Data Source
Figure 1
Figure 2~3
AI summary
A cooling absorption tower for a CO2 recovery device, comprises: an outer shell; a cooling section for cooling a flue gas, the cooling section being disposed in the outer shell; and an absorbing section configured to cause CO2 in the flue gas cooled by the cooling section to be absorbed in an absorption solvent, the absorbing section being disposed in the outer shell and above the cooling section.