Integrated CO2 Capture Tower Layout for Lower Cost and Maintenance
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Solution Overview
Problem
The existing carbon dioxide capture systems using a pre-washing tower and absorption tower 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, allowing flue gas to flow sequentially through these sections, with integrated auxiliary systems, reducing the need for separate towers and pipelines, and incorporating mist catchers and liquid distributors for efficient gas-liquid contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a pre-washing tower and absorption tower are used separately, then the removal of trace gypsum and other impurities is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the pre-washing tower and absorption tower into a single integrated carbon dioxide capture tower. The tower includes a pre-washing section at the bottom for removing trace gypsum and other impurities, and an absorption section above it for carbon dioxide absorption. This merging eliminates the need for separate towers and auxiliary systems, reducing device complexity and manufacturing cost while maintaining effective impurity removal through the integrated design.
2Productivity
If a pre-washing tower and absorption tower are used separately, then the carbon dioxide absorption process is improved, but the area occupied increases
Solution Approach 1:
The patent integrates the pre-washing function and carbon dioxide absorption function into a single vertical tower structure. The pre-washing section is positioned at the bottom and the absorption section above it, allowing flue gas to flow sequentially through both sections. This vertical integration maintains the carbon dioxide absorption efficiency while significantly reducing the horizontal area occupied compared to using separate towers.
3Object-affected harmful factors
If separate towers with auxiliary systems are used, then the pre-washing and absorption processes are improved, but the manufacturing cost increases
Solution Approach 1:
The patent combines multiple functions (pre-washing, carbon dioxide absorption, and flue gas washing) into a single integrated tower, eliminating the need for separate towers and their associated auxiliary systems such as multiple booster fans and pipelines. This integration reduces the number of components that need to be manufactured and installed, thereby reducing manufacturing cost while maintaining effective flue gas cleaning through the coordinated operation of the integrated sections.
4Object-affected harmful factors
If separate towers are used, then the pre-washing and absorption processes are improved, but the maintenance workload increases
Solution Approach 1:
The patent integrates the pre-washing section and absorption section into a single tower structure with shared auxiliary systems. This integration reduces the total number of components that require maintenance compared to having separate towers. The unified design allows for centralized maintenance activities and reduces the workload associated with operating and maintaining multiple independent systems while preserving the effectiveness of impurity removal through the integrated pre-washing and absorption processes.
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 design reduces manufacturing costs, lowers initial investment, decreases maintenance workload, and enhances adaptability and energy efficiency under low load conditions while minimizing area occupation and secondary pollution.
Implementation Method 1
the pre-washing liquid enters the pre-washing liquid distributor from the pre-washing liquid feed pipe, and the pre-washing liquid fully contacts with the flue gas in the impurity removal filler through the relatively even distribution of the pre-washing liquid distributor
Implementation Method 2
the liquid collection section includes a liquid collector, and the liquid collector includes a mist catcher. The technical scheme has the beneficial effects that the lean liquid is effectively prevented from leaking to the pre-washing impurity removal section by adopting the mist catcher.
Implementation Method 3
the lean liquid flows into the lean liquid distributor through the feed pipe and is evenly sprayed to the first absorption filler, and the flue gas and the lean liquid fully contact in the first absorption filler, so that the lean liquid absorbs carbon dioxide in the flue gas.
Implementation Method 4
the cooling absorption section includes a third liquid collector, a second absorption filler, an absorption cooling liquid distributor and an absorption cooling liquid feed pipe being sequentially arranged from bottom to top
Data Source
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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.