Integrated absorption column

Abstract

The application provides an integrated absorption tower, which comprises a first tower section, a second tower section and a third tower section arranged in a transverse direction; the first tower section comprises, from bottom to top, a carbon capture solution section, a first filler section and a first spraying section, the carbon capture solution section is provided with a gas distribution pipe part, and the gas distribution pipe part is provided with a gas distribution hole in communication with the carbon capture solution section; the second tower section comprises a transition tower section and a demisting tower section below the transition tower section, the transition tower section and the demisting tower section are not in communication with each other, and the upper end of the transition tower section is in communication with the upper end of the first spraying section; the third tower section is provided with a tail gas washing part, the upper end of the third tower section is in communication with the transition tower section, the lower end of the third tower section is in communication with the demisting tower section, and the demisting tower section is provided with an air outlet. Through the technical scheme, the problem that the carbon capture absorption tower with a high tower structure cannot guarantee that no inclination collapse or tower sinking occurs can be solved.

Description

Technical Field

[0001] This invention relates to the field of absorption tower technology, and more specifically, to an integrated absorption tower. Background Technology

[0002] In conventional carbon dioxide capture devices for flue gas in coal-fired power plants, the carbon capture and absorption tower is a packed tower with built-in structured packing or loose packing. This type of tower has the advantages of sufficient mass transfer and high capture rate.

[0003] In related technologies, carbon capture and absorption towers are mostly designed as traditional cylindrical, tall, slender, multi-layer packed towers, with tower heights ranging from 30m to 70m depending on the design.

[0004] However, carbon capture and absorption towers adopt a tall tower structure, which makes it difficult to guarantee the tower body strength and foundation strength in areas with soft soil, soil erosion, and earthquake-prone areas, so as not to tilt, collapse, or sink the tower. Summary of the Invention

[0005] This invention provides an integrated absorption tower to solve the problem that carbon capture and absorption towers in related technologies, which use tall tower structures, are difficult to prevent from tilting, collapsing, or sinking.

[0006] This invention provides an integrated absorption tower, comprising a first tower section, a second tower section, and a third tower section arranged laterally. The first tower section includes a carbon capture solution section, a first packing section, and a first spray section arranged from bottom to top. The carbon capture solution section is used to contain the carbon capture solution and is equipped with a gas distribution pipe with gas distribution holes communicating with the carbon capture solution section. The first packing section is equipped with a first packing layer, and the first spray section is equipped with a first spray element. The second tower section includes a transition tower section and a demister tower section located below the transition tower section. The transition tower section and the demister tower section are not interconnected, and the upper end of the transition tower section is connected to the upper end of the first spray section. The third tower section is equipped with a tail gas scrubbing element, and the upper end of the third tower section is connected to the transition tower section. The lower end of the third tower section is connected to the demister tower section, and the demister tower section is equipped with a demister element and an air outlet.

[0007] Furthermore, the air distribution pipe includes a main pipe and at least two first branch pipes. The main pipe extends laterally, and the at least two first branch pipes extend vertically and are spaced apart in the extension direction of the main pipe. Air distribution holes are provided on both the main pipe and the first branch pipes.

[0008] Furthermore, the air distribution pipe also includes multiple second branch pipes, all of which extend laterally. Each first branch pipe is provided with at least two second branch pipes arranged at vertical intervals, and each second branch pipe is provided with an air distribution hole.

[0009] Furthermore, the diameter of the main pipe is larger than the diameter of the first branch pipe, and the diameter of the first branch pipe is larger than the diameter of the second branch pipe; and / or, the air distribution holes on the main pipe are spaced apart along the extension direction of the main pipe, the first end of the first branch pipe is connected to the main pipe, the opening of the second end of the first branch pipe forms the air distribution hole of the first branch pipe, the first end of the second branch pipe is connected to the first branch pipe, and the opening of the second end of the second branch pipe forms the air distribution hole of the second branch pipe.

[0010] Furthermore, the transition tower section is provided with a second packing layer and a second spray element located above the second packing layer, and the upper end of the third tower section is connected to the part of the transition tower section located below the second packing layer.

[0011] Furthermore, the diameter of the first tower section is greater than the diameter of the second tower section; and / or, the thickness of the second packing layer is less than the thickness of the first packing layer, or the density of the second packing layer is less than the density of the first packing layer.

[0012] Furthermore, a solution baffle is provided in the second tower section, which divides the inner cavity of the second tower section into a transition tower section and a demisting tower section. The solution baffle is inclined, and its height gradually decreases in the direction close to the first tower section. A reflux port is provided through the side wall of the carbon capture solution section, and the lower end of the solution baffle extends to the lower edge of the reflux port.

[0013] Furthermore, a first connecting port is provided through the side wall of the transition tower section, and the transition tower section is connected to the upper end of the third tower section through the first connecting port. A first baffle is provided on the inner side wall of the transition tower section, and the first baffle is located above the first connecting port; and / or, a second connecting port is provided through the side wall of the demisting tower section, and the demisting tower section is connected to the lower end of the third tower section through the second connecting port.

[0014] Furthermore, the exhaust gas scrubbing unit includes a third spray element and at least two swirl plates, the at least two swirl plates being arranged vertically at intervals, the third spray element being located above the at least two swirl plates; and / or, drain outlets are provided at the bottom of the third tower section and the bottom of the demister tower section.

[0015] Furthermore, the demisting component includes at least two activated carbon filter cottons extending vertically and spaced laterally, with the air outlet located on the side of the at least two activated carbon filter cottons away from the third tower section; and / or, a mesh plate is provided above the air distribution pipe, the mesh plate extending laterally, and the edge of the mesh plate being connected to the inner wall of the first tower section.

[0016] According to the technical solution of this invention, the integrated absorption tower includes a first tower section, a second tower section, and a third tower section arranged laterally. First, flue gas enters the carbon capture solution through the gas distribution pipes of the first tower section. The flue gas and the carbon capture solution are thoroughly mixed. After bubbling, the flue gas rises through the first packing layer and then flows counter-currently from bottom to top into the first spray section. Next, the flue gas enters the third tower section through the transition tower section of the second tower section, where it is washed by the exhaust gas scrubbing components. Finally, the flue gas enters the demister section of the second tower section from the third tower section. After being demisted by the demister components in the demister section, the decarbonized and cleaned flue gas is discharged from the outlet. With this structure, because the first, second, and third tower sections are arranged laterally, compared to the tall tower structure used in related technologies for carbon capture absorption towers, the height of the integrated absorption tower can be reduced. Therefore, in areas with soft soil, prone to soil erosion, or earthquake-prone zones, it is less likely to tilt, collapse, or subsidence. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 A schematic diagram of an integrated absorption tower provided according to an embodiment of the present invention is shown.

[0019] The above figures include the following reference numerals:

[0020] 10. First tower section; 11. Carbon capture solution section; 111. Reflux port; 12. First packing section; 121. First packing layer; 13. First spray section; 131. First spray component; 1311. Spray water pump; 1312. First spray water pipe; 14. Gas distribution pipe fitting; 141. Gas distribution hole; 142. Main pipe; 143. First branch pipe; 144. Second branch pipe; 15. Mesh plate;

[0021] 20. Second tower section; 21. Transition tower section; 211. Second packing layer; 212. Second spray element; 2121. Second spray water pipe; 213. First connecting port; 214. First baffle; 22. Demisting tower section; 221. Demisting element; 2211. Activated carbon filter cotton; 222. Air outlet; 223. Second connecting port; 23. Solution baffle;

[0022] 30. Third tower section; 31. Exhaust gas scrubbing component; 311. Third spray component; 3111. Scrubber pump; 3112. Scrubber spray pipe; 312. Swirl plate;

[0023] 40. Drainage outlet. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figure 1 As shown, this embodiment of the invention provides an integrated absorption tower, which includes a first tower section 10, a second tower section 20, and a third tower section 30 arranged laterally. The first tower section 10 includes a carbon capture solution section 11, a first packing section 12, and a first spray section 13 arranged from bottom to top. The carbon capture solution section 11 contains a carbon capture solution and is equipped with a gas distribution pipe 14, which has gas distribution holes 141 communicating with the carbon capture solution section 11. The first packing section 12 contains a first packing layer 121, and the first spray section 13 contains a first spray element 131. The second tower section 20 includes a transition tower section 21 and a demisting tower section 22 located below the transition tower section 21. The transition tower section 21 and the demisting tower section 22 are not interconnected, and the upper end of the transition tower section 21 is connected to the upper end of the first spray section 13. The third tower section 30 is equipped with an exhaust gas scrubbing component 31. The upper end of the third tower section 30 is connected to the transition tower section 21, and the lower end of the third tower section 30 is connected to the demisting tower section 22. The demisting tower section 22 is equipped with a demisting component 221 and an air outlet 222.

[0026] Using the integrated absorption tower provided in this embodiment, firstly, the flue gas enters the carbon capture solution through the gas distribution pipe 14 of the first tower section 10. The flue gas and the carbon capture solution are thoroughly mixed. After bubbling, the flue gas rises through the first packing layer 121 and then flows counter-currently from bottom to top into the first spray section 13. Next, the flue gas enters the third tower section 30 through the transition tower section 21 of the second tower section 20. In the third tower section 30, the flue gas is washed by the tail gas scrubbing element 31 for amine removal and preliminary dehydration. Finally, the flue gas enters the demister tower section 22 of the second tower section 20 from the third tower section 30. In the demister tower section 22, the flue gas is demisted by the demister element 221, further removing volatile amines and moisture. The decarbonized and cleaned flue gas is discharged from the outlet 222. With the above structure, since the first tower section 10, the second tower section 20 and the third tower section 30 are arranged in the horizontal direction, compared with the high tower structure of carbon capture and absorption towers in related technologies, the height of the integrated absorption tower can be reduced, so that it is less likely to tilt, collapse or sink in soft soil, areas prone to soil erosion and earthquake-prone areas.

[0027] Furthermore, in related technologies, most carbon capture absorption towers use an air intake method above the carbon capture solution, which may lead to uneven CO2 gas absorption. However, the integrated absorption tower of this embodiment uses a bottom bubbling air intake method, which allows the flue gas to undergo preliminary contact absorption with the solution before entering the upper packing layer for spray absorption.

[0028] It should be noted that the transition tower section 21 and the defogging tower section 22 are not connected to each other. This means that the transition tower section 21 and the defogging tower section 22 are not directly connected.

[0029] like Figure 1 As shown, the gas distribution pipe 14 includes a main pipe 142 and at least two first branch pipes 143. The main pipe 142 extends laterally, and the at least two first branch pipes 143 extend vertically and are spaced apart in the extension direction of the main pipe 142. Both the main pipe 142 and the first branch pipes 143 are provided with gas distribution holes 141, which can increase the number of gas distribution holes 141 and make the distribution of multiple gas distribution holes 141 more uniform, so as to facilitate the thorough mixing of flue gas and carbon capture solution.

[0030] In this embodiment, the gas distribution pipe 14 further includes a plurality of second branch pipes 144, all of which extend laterally. Each first branch pipe 143 is provided with at least two second branch pipes 144 arranged vertically at intervals, and each second branch pipe 144 is provided with a gas distribution hole 141. By providing a plurality of second branch pipes 144, the mixing effect of flue gas and carbon capture solution can be further improved.

[0031] The main pipe 142 has a larger diameter than the first branch pipe 143, and the first branch pipe 143 has a larger diameter than the second branch pipe 144. Air distribution holes 141 on the main pipe 142 are spaced apart along its extension direction. The first end of the first branch pipe 143 is connected to the main pipe 142, and the opening at the second end of the first branch pipe 143 forms the air distribution hole 141. The first end of the second branch pipe 144 is connected to the first branch pipe 143, and the opening at the second end of the second branch pipe 144 forms the air distribution hole 141. This design ensures strength while preventing the gas from generating violent bubbles that could cause flooding inside the tower when it enters the solution.

[0032] Specifically, the diameter ratio of the main pipe 142 to the primary branch pipe (first branch pipe 143) is 1.5:1 to 2:1. The primary branch pipes are evenly distributed according to the diameter of the first tower section, and the length of the vertical primary branch pipes extending upward is 0.5-1 times the length of the main pipe. Above the primary branch pipes extending upward from the main pipe, secondary branch pipes (second branch pipes 144) are designed on all four sides. The secondary branch pipes are evenly divided according to the length of the primary branch pipes, with a length of 0.2-0.6 times that of the primary branch pipes and a diameter of 0.4-0.8 times that of the primary branch pipes. This ensures strength while preventing the gas from carrying violent bubbles that could cause flooding in the tower when it enters the solution.

[0033] like Figure 1 As shown, the transition tower section 21 is equipped with a second packing layer 211 and a second spray element 212 located above the second packing layer 211. The upper end of the third tower section 30 is connected to the portion of the transition tower section 21 located below the second packing layer 211. The second packing layer 211 and the second spray element 212 can further improve the absorption effect of flue gas.

[0034] In this embodiment, the diameter of the first column section 10 is larger than the diameter of the second column section 20. Reducing the diameter of the second column section 20 can appropriately increase the gas flow rate. According to the gas flow rate requirements, the gas flow rate in the second column section 20 can be increased to 1.2-1.5 times that of the first column section 10. This can reduce the column footprint and appropriately reduce the amount of solution carried away by the gas without reducing the solution absorption efficiency.

[0035] The thickness of the second packing layer 211 is less than the thickness of the first packing layer 121, or the density of the second packing layer 211 is less than the density of the first packing layer 121, to ensure normal pressure drop inside the tower.

[0036] In this embodiment, the filler material of both the first filler layer 121 and the second filler layer 211 is stainless steel.

[0037] like Figure 1 As shown, a solution baffle 23 is installed in the second column section 20, dividing the inner cavity of the second column section 20 into a transition column section 21 and a demister column section 22. The solution baffle 23 is inclined, and its height gradually decreases in the direction close to the first column section 10. A reflux port 111 is provided through the side wall of the carbon capture solution section 11, and the lower end of the solution baffle 23 extends to the lower edge of the reflux port 111. Liquid dripping onto the solution baffle 23 can flow back into the carbon capture solution section 11 through the reflux port 111.

[0038] It should be noted that a reflux port 111 is provided through the side wall of the carbon capture solution section 11, and this side wall of the carbon capture solution section 11 also belongs to the side wall of the second tower section 20. In this embodiment, the side wall with the reflux port 111 is a side wall shared by the first tower section and the second tower section.

[0039] Specifically, the lower end of the solution baffle 23 is 500mm-1000mm higher than the highest liquid level specified in the tower design, to ensure that the solution does not flow back into the second tower section in large quantities when running at a low circulation rate in the tower.

[0040] The transition tower section 21 has a first connecting port 213 penetrating through its side wall, connecting it to the upper end of the third tower section 30. A first baffle plate 214 is installed on the inner side wall of the transition tower section 21, positioned above the first connecting port 213. The demister tower section 22 has a second connecting port 223 penetrating through its side wall, connecting it to the lower end of the third tower section 30. The first baffle plate 214 prevents liquid from entering the third tower section 30 through the first connecting port 213.

[0041] like Figure 1 As shown, the exhaust gas scrubbing unit 31 includes a third spray element 311 and at least two swirl plates 312. The at least two swirl plates 312 are arranged vertically at intervals, and the third spray element 311 is located above the at least two swirl plates 312. The liquid sprayed by the third spray element 311 will drive the swirl plates 312 to rotate, thereby increasing the scrubbing time and removing excess water vapor in the first stage.

[0042] In this embodiment, drain outlets 40 are provided at the bottom of the third tower section 30 and the bottom of the demister tower section 22, and the liquid at the bottom of the third tower section 30 and the bottom of the demister tower section 22 can be discharged through the drain outlets 40.

[0043] In this embodiment, the demister 221 includes at least two activated carbon filter cottons 2211 extending vertically and spaced laterally, with the air outlet 222 located on the side of the at least two activated carbon filter cottons 2211 away from the third tower section 30. Using activated carbon filter cotton as a dry filtration and dehydration device integrated below the tower body allows for dehydration while further removing volatile amines from the decarbonized air, and also facilitates drainage.

[0044] like Figure 1As shown, a mesh plate 15 is installed above the gas distribution pipe 14. The mesh plate 15 extends laterally, and its edge connects to the inner wall of the first tower section 10. The mesh plate serves to trap the solution. Firstly, it prevents excessive gas flow velocity in the gas distribution pipe from causing strong foaming of the solution accumulated at the bottom, leading to flooding and pressure instability in the tower, thereby reducing the absorption efficiency of the solution. Secondly, it also traps the solution returning from the second tower section, thus having a defoaming and defoaming effect.

[0045] The thickness of the mesh plate is designed according to the solution circulation rate of the integrated absorption tower, and the height is 1 / 10 to 1 / 15 of the solution height at the bottom of the tower.

[0046] In this embodiment, the first spray component 131 includes a spray water pump 1311 and a first spray water pipe 1312. The second spray component 212 includes a second spray water pipe 2121 connected to the first spray water pipe 1312. The third spray component 311 includes a washing water pump 3111 and a washing spray pipe 3112.

[0047] The apparatus provided by the embodiments has the following beneficial effects:

[0048] (1) The integrated absorption tower effectively integrates the gas distribution system, spray absorption system, tail gas scrubbing system, and demisting system. The folded square tower design reduces the tower height and increases the ground contact area, significantly reducing geological subsidence caused by insufficient tower strength.

[0049] (2) The integrated absorption tower adopts a multi-layer gas distribution and bubbling air intake method in the lower part of the solution, which allows the flue gas to be initially absorbed by the solution before entering the upper packing layer for spray absorption.

[0050] (3) The tail gas scrubbing tower (third tower section) is integrated with the absorption tower (first tower section and second tower section) and adopts multi-layer swirl plate self-drive, which increases the scrubbing time and removes excess water vapor in the first stage.

[0051] (4) Activated carbon filter cotton is used as a dry filtration and dehydration device integrated at the bottom of the tower. While dehydrating, it can further remove volatile amines from the decarbonized air and facilitate drainage. In related technologies, the carbon capture and absorption tower has a serious problem of amine escape. Volatile amines that are not absorbed by the tail gas washing water will directly escape into the atmosphere with the decarbonized flue gas.

[0052] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0053] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0054] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0055] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0056] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An integrated absorption tower, characterized in that, The integrated absorption tower includes a first tower section (10), a second tower section (20), and a third tower section (30) arranged in a transverse direction; The first tower section (10) includes a carbon capture solution section (11), a first packing section (12), and a first spray section (13) arranged from bottom to top. The carbon capture solution section (11) is used to contain the carbon capture solution. A gas distribution pipe (14) is provided in the carbon capture solution section (11). The gas distribution pipe (14) has a gas distribution hole (141) that communicates with the carbon capture solution section (11). A first packing layer (121) is provided in the first packing section (12). A first spray element (131) is provided in the first spray section (13). The second tower section (20) includes a transition tower section (21) and a demisting tower section (22) located below the transition tower section (21). The transition tower section (21) and the demisting tower section (22) are not connected to each other. The upper end of the transition tower section (21) is connected to the upper end of the first spray section (13). The third tower section (30) is equipped with an exhaust gas scrubbing component (31). The upper end of the third tower section (30) is connected to the transition tower section (21), and the lower end of the third tower section (30) is connected to the demisting tower section (22). The demisting tower section (22) is equipped with a demisting component (221) and an air outlet (222).

2. The integrated absorption tower according to claim 1, characterized in that, The air distribution pipe (14) includes a main pipe (142) and at least two first branch pipes (143). The main pipe (142) extends laterally, and the at least two first branch pipes (143) extend vertically and are spaced apart in the extension direction of the main pipe (142). The main pipe (142) and the first branch pipes (143) are each provided with air distribution holes (141).

3. The integrated absorption tower according to claim 2, characterized in that, The air distribution pipe (14) also includes a plurality of second branch pipes (144), which extend laterally. Each first branch pipe (143) is provided with at least two second branch pipes (144) arranged vertically at intervals, and each second branch pipe (144) is provided with the air distribution hole (141).

4. The integrated absorption tower according to claim 3, characterized in that, The diameter of the main pipe (142) is larger than the diameter of the first branch pipe (143), and the diameter of the first branch pipe (143) is larger than the diameter of the second branch pipe (144); and / or, The air holes (141) on the main pipe (142) are spaced apart along the extension direction of the main pipe (142). The first end of the first branch pipe (143) is connected to the main pipe (142), and the opening of the second end of the first branch pipe (143) forms the air hole (141) of the first branch pipe (143). The first end of the second branch pipe (144) is connected to the first branch pipe (143), and the opening of the second end of the second branch pipe (144) forms the air hole (141) of the second branch pipe (144).

5. The integrated absorption tower according to claim 1, characterized in that, The transition tower section (21) is provided with a second packing layer (211) and a second spray element (212) located above the second packing layer (211). The upper end of the third tower section (30) is connected to the part of the transition tower section (21) located below the second packing layer (211).

6. The integrated absorption tower according to claim 5, characterized in that, The diameter of the first tower section (10) is larger than the diameter of the second tower section (20); and / or, The thickness of the second filler layer (211) is less than the thickness of the first filler layer (121), or the density of the second filler layer (211) is less than the density of the first filler layer (121).

7. The integrated absorption tower according to any one of claims 1 to 6, characterized in that, A solution baffle (23) is provided in the second tower section (20). The solution baffle (23) divides the inner cavity of the second tower section (20) into the transition tower section (21) and the demister tower section (22). The solution baffle (23) is inclined. In the direction close to the first tower section (10), the height of the solution baffle (23) gradually decreases. A reflux port (111) is provided through the side wall of the carbon capture solution section (11). The lower end of the solution baffle (23) extends to the lower edge of the reflux port (111).

8. The integrated absorption tower according to any one of claims 1 to 6, characterized in that, A first connecting port (213) is provided through the side wall of the transition tower section (21), and the transition tower section (21) is connected to the upper end of the third tower section (30) through the first connecting port (213). A first baffle plate (214) is provided on the inner side wall of the transition tower section (21), and the first baffle plate (214) is located above the first connecting port (213); and / or, A second communication port (223) is provided through the side wall of the defogging tower section (22), and the defogging tower section (22) is connected to the lower end of the third tower section (30) through the second communication port (223).

9. The integrated absorption tower according to any one of claims 1 to 6, characterized in that, The exhaust gas scrubbing component (31) includes a third spray component (311) and at least two swirl plates (312), the at least two of the swirl plates (312) being arranged vertically at intervals, and the third spray component (311) being located above the at least two of the swirl plates (312); and / or, Drainage outlets (40) are provided at the bottom of the third tower section (30) and the bottom of the demisting tower section (22).

10. The integrated absorption tower according to any one of claims 1 to 6, characterized in that, The demisting component (221) includes at least two activated carbon filter cottons (2211) extending vertically and spaced laterally, and the air outlet (222) is located on the side of the at least two of the activated carbon filter cottons (2211) away from the third tower section (30); and / or, A mesh plate (15) is provided above the gas distribution pipe (14). The mesh plate (15) extends laterally, and the edge of the mesh plate (15) is connected to the inner wall of the first tower section (10).

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