Integrated CO2 Capture Tower Layout for Lower Footprint and Maintenance
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Solution Overview
Problem
The existing carbon dioxide capture systems using pre-washing and absorption towers are costly, require significant maintenance, occupy large areas, and have poor adaptability to load and high energy consumption under low load conditions due to the need for separate towers and auxiliary systems.
Innovation Solution
A carbon dioxide capture tower design that integrates pre-washing impurity removal, carbon dioxide absorption, and flue gas washing sections vertically, eliminating the need for separate towers and auxiliary systems, and incorporating mist catchers and liquid distribution systems for efficient gas-liquid contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate pre-washing tower and absorption tower are used, then pre-washing and carbon dioxide absorption processes can be completed independently, but the manufacturing cost increases, the occupied area increases, and the device complexity increases
Solution Approach 1:
The patent combines the pre-washing tower and absorption tower into a single integrated tower structure. The pre-washing section is positioned at the bottom and the absorption section is positioned at the top, allowing both functions to be performed in one device. This merging reduces the number of towers from two to one, thereby reducing manufacturing cost, occupied area, and device complexity while maintaining process independence through functional segmentation.
Solution Approach 2:
The integrated tower is segmented into distinct functional sections: a pre-washing section at the bottom for impurity removal, an absorption section at the top for carbon dioxide capture, and a washing section in between. Each section has its own filler material and liquid distribution system, allowing independent operation while being housed in a single tower structure.
2Reliability
If separate pre-washing tower and absorption tower are used, then pre-washing and carbon dioxide absorption can be performed separately, but the occupied area increases and site flexibility is reduced
Solution Approach 1:
By merging the pre-washing and absorption functions into a single tower, the patent reduces the total occupied area from two separate towers to one integrated structure. This consolidation maintains process separation through vertical zoning while significantly reducing the footprint and improving site flexibility.
3Adaptability or versatility
If separate pre-washing tower and absorption tower are used, then independent operation is possible, but the manufacturing cost increases due to additional auxiliary systems and pipelines
Solution Approach 1:
The patent eliminates the need for separate auxiliary systems and interconnecting pipelines by integrating both functions into one tower. The liquid distribution system serves both pre-washing and absorption sections through a unified structure, reducing manufacturing cost while maintaining operational flexibility through independent section control.
Solution Approach 2:
The integrated tower structure serves multiple functions simultaneously: the pre-washing section removes impurities, the washing section facilitates gas-liquid contact, and the absorption section captures carbon dioxide. The liquid distribution system and filler materials are designed to perform multiple functions, reducing overall system complexity and manufacturing cost.
4Reliability
If separate pre-washing tower and absorption tower are used, then process independence is maintained, but the workload for operation and maintenance increases
Solution Approach 1:
By consolidating two towers into one integrated structure, the patent reduces the maintenance workload from managing two separate devices to managing a single unit. The process independence is maintained through functional segmentation, allowing each section to operate independently while sharing common auxiliary systems.
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 manufacturing costs, operational workload, and energy consumption while minimizing area requirements, enhancing adaptability to load variations and reducing carbon dioxide residues in the flue gas.
Implementation Method 1
the pre-washing liquid distributor can relatively evenly distribute the pre-washing liquid to the impurity removal filler
Implementation Method 2
the lean liquid absorbs carbon dioxide in the flue gas
Implementation Method 3
the liquid collector includes a mist catcher... the lean liquid is effectively prevented from leaking to the pre-washing impurity removal section by adopting the mist catcher
Implementation Method 4
the flue gas can be relatively evenly distributed in the pre-washing impurity removal section after entering the pre-washing impurity removal section through the gas distributor
Implementation Method 5
the washing liquid enters the washing liquid distributor through the feed pipe and is evenly sprayed to the washing filler
Implementation Method 6
a wire mesh defoamer is arranged at the top of the washing section... the harmful substances in the carbon dioxide capture tower are not easily discharged from the tower in the form of foam
Data Source
AI summary
The disclosure relates to the technical field of carbon dioxide capture, in particular to a carbon dioxide capture tower, which includes a pre-washing impurity removal section, a carbon dioxide absorption section and a flue gas washing section being sequentially arranged from bottom to top in a vertical direction, so that flue gas sequentially flows through the pre-washing impurity removal section, the carbon dioxide absorption section and the flue gas washing section. A carbon dioxide capture tower flue gas inlet is arranged on the pre-washing impurity removal section, and a carbon dioxide capture tower flue gas outlet is arranged on the flue gas washing section. The purpose of this disclosure is to provide a carbon dioxide capture tower aiming at the technical problems that the manufacturing cost of the flue gas carbon dioxide capture system is high and the workload of later operation, overhaul and maintenance is large.