Gas-liquid separation device and carbon dioxide capture system

Abstract

The present disclosure relates to the technical field of separation, and in particular to a gas-liquid separation device and a carbon dioxide capture system. The gas-liquid separation device comprises a separation tank and a spray assembly. The separation tank is provided with a first inlet and a second inlet that are spaced apart from each other in an extension direction of the separation tank, and the first inlet is arranged above the second inlet; the first inlet is used for introducing a gas-liquid mixture into the separation tank, and the second inlet is used for introducing ozone gas into the separation tank. The spray assembly comprises a spray head and a liquid inlet pipe. The separation tank is provided with a circulation outlet. The circulation outlet and the second inlet are spaced apart from each other in the circumferential direction of the separation tank. One end of the liquid inlet pipe is connected to the spray head, and the other end of the liquid inlet pipe is communicated with the circulation outlet so as to convey liquid collected in the separation tank to the spray head. The spray head is arranged in the separation tank and located above the first inlet. The spray head is used for spraying the gas-liquid mixture. The gas-liquid separation device of the present disclosure can remove alkanolamine in the liquid, and reduces treatment cost and treatment time.

Description

Gas-liquid separation device and carbon dioxide capture system

[0001] Cross-references to related applications

[0002] This disclosure is based on and claims priority to Chinese Patent Application No. 202410971844.4, filed on July 19, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of separation technology, specifically to a gas-liquid separation device and a carbon dioxide capture system. Background Technology

[0004] In the carbon capture process, the absorbent absorbs carbon dioxide in the absorption tower and is then transferred to the regeneration tower for regeneration. The absorbent is usually an alkanolamine solution. After the alkanolamine solution is heated by the regeneration gas in the regeneration tower, carbon dioxide is separated from the alkanolamine solution. The alkanolamine solution is then circulated back to the absorption tower to absorb carbon dioxide. However, carbon dioxide carries water vapor and alkanolamine vapor. In related technologies, gas-liquid separation is often achieved through a gas-liquid separator. However, the separated liquid contains alkanolamine solution, which requires separate treatment of the liquid containing alkanolamine, increasing the treatment cost and time. Summary of the Invention

[0005] This disclosure aims to at least partially address one of the technical problems in the related art. To this end, embodiments of this disclosure provide a gas-liquid separation device that can remove alkanolamines from liquids, reducing processing costs and processing time.

[0006] This disclosure also proposes a carbon dioxide capture system.

[0007] The gas-liquid separation device of this disclosure includes: a separation tank having a first inlet and a second inlet, the first inlet and the second inlet being arranged at a distance from each other in the extending direction of the separation tank, and the first inlet being located above the second inlet; the first inlet being used to introduce a gas-liquid mixture into the separation tank, and the second inlet being used to introduce ozone gas into the separation tank; and a spray assembly including a spray head and a liquid inlet pipe; the separation tank having a circulation outlet, the circulation outlet and the second inlet being arranged at a distance from each other in the circumferential direction of the separation tank; one end of the liquid inlet pipe being connected to the spray head, and the other end of the liquid inlet pipe being connected to the circulation outlet to transfer liquid collected in the separation tank to the spray head; the spray head being located inside the separation tank and above the first inlet, and the spray head being used to spray the gas-liquid mixture entering the separation tank.

[0008] The gas-liquid separation device of this disclosure can remove alcohol amines from liquids, reducing processing costs and processing time.

[0009] In some embodiments, the gas-liquid separation device further includes a gas distributor disposed inside the separation tank and connected to the inner wall of the separation tank, the gas distributor being located between the first inlet and the second inlet.

[0010] In some embodiments, the gas-liquid separation device further includes a stirrer, at least a portion of which is located inside the separation tank and below the gas distributor, the stirrer being used to stir the liquid collected in the separation tank.

[0011] In some embodiments, the gas-liquid separation device further includes a separation component, the separation component including a packing layer disposed inside the separation tank, the packing layer and the spray head being arranged at intervals in the extending direction of the separation tank, and the packing layer being located above the spray head.

[0012] In some embodiments, the separation assembly further includes a demister disposed within the separation tank, the demister and the packing layer being arranged at intervals along the extension direction of the separation tank, and the demister being disposed away from the spray head.

[0013] In some embodiments, the separator has a first outlet and a second outlet, which are arranged at intervals in the extending direction of the separator. The first outlet is located above the demister and is used to discharge gas after passing through the demister. The second outlet is located at the bottom of the separator and is used to discharge liquid collected in the separator.

[0014] In some embodiments, the gas-liquid separation device further includes a valve connected to the second outlet, the valve being used to control the opening and closing of the second outlet.

[0015] In some embodiments, the spray assembly further includes a pump, the separation tank has a circulation inlet, the circulation inlet and the circulation outlet are arranged at intervals in the extension direction of the separation tank, the pump is disposed on the inlet pipe, and one end of the pump is connected to the circulation outlet and the other end of the pump is connected to the circulation inlet.

[0016] In some embodiments, the gas-liquid separation device further includes an ozone supplier connected to the second inlet, the ozone supplier being used to introduce ozone into the separation tank through the second inlet.

[0017] The carbon dioxide capture system of this disclosure includes the gas-liquid separation device described in the above embodiments.

[0018] The carbon dioxide capture system of this disclosure can remove alcohol amines from liquids, reducing processing costs and processing time. Attached Figure Description

[0019] Figure 1 is a schematic diagram of a gas-liquid separation device according to an embodiment of the present disclosure.

[0020] Figure 2 is a schematic diagram of a carbon dioxide capture system according to an embodiment of the present disclosure.

[0021] Reference numerals: Pre-washing tower 100, absorption tower 200, regeneration tower 300, heat exchanger 400, gas-liquid separation device 500, separation tank 1, first inlet 11, second inlet 12, circulation outlet 13, circulation inlet 14, first outlet 15, second outlet 16, spray assembly 2, spray head 21, liquid inlet pipe 22, pump 23, gas distributor 3, agitator 4, stirring blade 41, stirring shaft 42, separation assembly 5, packing layer 51, demister 52, valve 6, ozone supplier 7. Detailed Implementation

[0022] Embodiments of this disclosure are described in detail below, with examples of these embodiments illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting it.

[0023] The gas-liquid separation device 500 of this embodiment includes a separation tank 1 and a spray assembly 2. The separation tank 1 has a first inlet 11 and a second inlet 12, which are spaced apart in the extending direction of the separation tank 1 (vertical direction as shown in FIG. 1), with the first inlet 11 positioned above the second inlet 12. The first inlet 11 is used to introduce a gas-liquid mixture into the separation tank 1, and the second inlet 12 is used to introduce ozone gas into the separation tank 1. The spray assembly 2 includes a spray head 21 and a liquid inlet pipe 22. The separation tank 1 has a circulation outlet 13, which is spaced apart from the second inlet 12 in the circumferential direction of the separation tank 1. One end of the liquid inlet pipe 22 is connected to the spray head 21, and the other end of the liquid inlet pipe 22 is connected to the circulation outlet 13 to transfer the liquid collected in the separation tank 1 to the spray head 21. The spray head 21 is located inside the separation tank 1 and above the first inlet 11, and is used to spray the gas-liquid mixture entering the separation tank 1.

[0024] It should be noted that the amine solution is heated in the regeneration tower 300 to remove the absorbed carbon dioxide. Due to the high temperature in the regeneration tower 300, some water and amine solution evaporate to form water vapor and amine vapor. The water vapor and amine vapor mix with carbon dioxide gas to form a gas-liquid mixture. The gas-liquid mixture is then transferred to the separation tank 1 through the first inlet 11 for separation.

[0025] Specifically, as shown in Figure 1, the first inlet 11 is located on the left side of the separator 1. The first inlet 11 is connected to the outlet of the regeneration tower 300 to transfer the gas-liquid mixture regenerated by the regeneration tower 300 into the separator 1. The second inlet 12 is located on the left side of the separator 1, below the first inlet 11. The second inlet 12 is connected to an ozone source to transfer ozone into the separator 1. Since the second inlet 12 is below the first inlet 11, the ozone gas entering the separator 1 through the second inlet 12 will come into contact with the gas-liquid mixture and react during its upward flow. Through oxidation, the alkanolamine organic compounds contained in the gas-liquid mixture can be oxidized into carbon dioxide, nitrogen, and water.

[0026] Spray head 21 is located inside the separation tank 1, and above the first inlet 11. The circulation outlet 13 is located on the lower right side of the separation tank 1. The circulation outlet 13 is connected to the inlet end of the liquid inlet pipe 22 to transfer the liquid collected at the bottom of the separation tank 1 to the spray head 21 through the outlet end of the liquid inlet pipe 22. The spray head 21 sprays the liquid to form fine droplets. The gas-liquid mixture moves from bottom to top, and the fine droplets move from top to bottom and make full contact with the gas-liquid mixture from top to bottom. Since ozone is dissolved in the liquid, the alkanolamine organic compounds contained in the gas-liquid mixture are oxidized into carbon dioxide, nitrogen and water through oxidation.

[0027] Understandably, during the initial gas-liquid separation, the separation tank 1 is empty of liquid. At this time, the gas-liquid mixture reacts with the upward-flowing ozone as it flows upward, removing the alkanolamines from the mixture. Alternatively, during the initial gas-liquid separation, a portion of water is transferred to the separation tank 1. After entering the separation tank 1, the ozone partially dissolves in the water. The water is then transferred to the spray head 21 by the inlet pipe 22 for spraying. The fine droplets sprayed fully contact and react with the gas-liquid mixture, further removing the alkanolamines and improving the alkanolamine removal efficiency of the gas-liquid separation device 500.

[0028] The gas-liquid separation device 500 of this embodiment of the present disclosure has a first inlet 11 and a second inlet 12 on the separation tank 1. A gas-liquid mixture is introduced into the separation tank 1 through the first inlet 11, and ozone gas is introduced into the separation tank 1 through the second inlet 12. As the ozone gas moves from bottom to top, it reacts with the gas-liquid mixture. Due to the strong oxidizing property of ozone gas, it can react with the alkanolamine organic matter in the gas-liquid mixture, oxidizing the alkanolamine into carbon dioxide, nitrogen and water, thereby removing the alkanolamine from the gas-liquid mixture. This achieves the effect of in-situ removal of alkanolamine, reducing processing costs and processing time.

[0029] Furthermore, in this embodiment, a spray head 21 is installed in the separation tank 1, and the liquid collected in the separation tank 1 is transferred to the spray head 21 for spraying through the liquid inlet pipe 22. Since ozone is dissolved in the liquid collected in the separation tank 1, the spraying action allows the liquid to come into full contact with the gas-liquid mixture, and the ozone dissolved in the liquid reacts with the alkanolamine in the gas-liquid mixture to form carbon dioxide, nitrogen and water, thereby removing the alkanolamine from the gas-liquid mixture.

[0030] Furthermore, due to the high temperature inside the regeneration tower 300, as the gas-liquid mixture flows, the temperature of the gas-liquid mixture gradually decreases, and some of the water vapor and alkanolamine gas in the gas-liquid mixture will turn into water and alkanolamine liquid, thus achieving gas-liquid separation.

[0031] In some embodiments, the gas-liquid separation device 500 further includes a gas distributor 3, which is disposed inside the separation tank 1 and connected to the inner wall of the separation tank 1. The gas distributor 3 is located between the first inlet 11 and the second inlet 12.

[0032] Specifically, as shown in Figure 1, the gas distributor 3 is located above the second inlet 12. Through the setting of the gas distributor 3, a portion of ozone is evenly distributed in the liquid in the separator 1, and another portion of ozone flows upward evenly to contact the gas-liquid mixture and react.

[0033] In some embodiments, the gas-liquid separation device 500 further includes a stirrer 4, at least a portion of which is located inside the separation tank 1. The stirrer 4 is disposed below the gas distributor 3 and is used to stir the liquid collected in the separation tank 1.

[0034] Specifically, as shown in Figure 1, the stirrer 4 includes stirring blades 41 and stirring shaft 42. The stirring blades 41 are located inside the separation tank 1. At least a portion of the upper end of the stirring shaft 42 is located inside the separation tank 1 and connected to the stirring blades 41. The lower end of the stirring shaft 42 is located outside the separation tank 1. The stirring shaft 42 is connected to a motor to drive the stirring shaft 42 to rotate. The rotation of the stirring shaft 42 drives the stirring blades 41 to rotate. The rotation of the stirring blades 41 stirs the liquid in the separation tank 1, so that ozone and liquid are fully mixed, thereby improving the reaction efficiency and reaction effect of ozone and alcohol amine organic compounds in the liquid.

[0035] In some embodiments, the gas-liquid separation device 500 further includes a separation component 5, which includes a packing layer 51 disposed inside the separation tank 1. The packing layer 51 and the spray head 21 are arranged at intervals in the extending direction of the separation tank 1, and the packing layer 51 is located above the spray head 21.

[0036] Specifically, as shown in Figure 1, the packing layer 51 is located above the spray head 21. After the gas-liquid mixture reacts with ozone to remove the organic matter of alcohol amines, a mixed gas is formed. The mixed gas includes the remaining water vapor and carbon dioxide gas. The mixed gas continues to move upward through the packing layer 51. The packing layer forms an upward channel in the separation tank 1. The mixed gas enters the packing layer 51 from below. After being blocked and dispersed by the packing, the mixed gas forms many tiny droplets in the packing layer 51, which further increases the contact area between the liquid and the gas. As a result, the liquid in the mixed gas settles in the packing layer 51 and then falls to the bottom of the tank.

[0037] For example, the height of the packing layer 51 is about 1 / 3 of the height of the separator 1.

[0038] In some embodiments, the separation assembly 5 further includes a demister 52 disposed inside the separation tank 1. The demister 52 and the packing layer 51 are arranged at intervals in the extending direction of the separation tank 1, and the demister 52 is arranged away from the spray head 21.

[0039] Specifically, as shown in Figure 1, the demister 52 is located above the packing layer 51. After being blocked by the packing layer 51, the gas continues to move upward and passes through the demister 52. Under the action of the demister 52, the mist particles and slurry droplets entrained in the carbon dioxide gas are further removed to obtain pure carbon dioxide gas.

[0040] In this embodiment, the gas-liquid mixture is separated by gradually decreasing temperature during flow and by the arrangement of packing layer 51 and demister 52. Then, ozone flows from bottom to top and is sprayed onto the gas-liquid mixture by spray head 21, so that ozone reacts fully with the alkanolamines in the gas-liquid mixture, reducing the alkanolamines in the gas-liquid mixture and improving the purity of the gas.

[0041] In some embodiments, the separator 1 has a first outlet 15 and a second outlet 16, which are arranged at intervals in the extending direction of the separator 1. The first outlet 15 is located above the demister 52 and is used to discharge the gas after demisting. The second outlet 16 is located at the bottom of the separator 1 and is used to discharge the liquid collected in the separator 1.

[0042] Specifically, as shown in Figure 1, the first outlet 15 is located at the top of the separator 1, and is used to discharge carbon dioxide gas after passing through the demister 52. The second outlet 16 is located at the bottom of the separator 1, and is used to discharge the liquid collected in the separator 1.

[0043] For example, in this embodiment, the minimum distance between the liquid level in the separator 1 and the first inlet 11 is 20cm. That is to say, the liquid level in the separator 1 is 20cm lower than the height of the first inlet 11.

[0044] In this embodiment, the amount of liquid in the separator 1 continuously increases, causing the liquid level to continuously increase. By setting the second outlet 16, the liquid level in the separator 1 is always kept below 20cm from the first inlet 11, thus preventing the liquid in the separator 1 from affecting the first inlet 11 in the transmission of the gas-liquid mixture into the separator 1.

[0045] In some embodiments, the gas-liquid separation device 500 further includes a valve 6, which is connected to a second outlet 16 and is used to control the opening and closing of the second outlet 16.

[0046] Specifically, as shown in Figure 1, in this embodiment, the opening and closing of valve 6 are controlled according to the liquid level. The opening and closing of valve 6 enables the second outlet 16 to be connected to and closed to the outside world, so that when it is necessary to discharge the liquid in the separation tank 1, valve 6 can be opened to discharge the liquid.

[0047] In some embodiments, the spray assembly 2 further includes a pump 23, the separation tank 1 has a circulation inlet 14, the circulation inlet 14 and the circulation outlet 13 are arranged at intervals in the extending direction of the separation tank 1, the pump 23 is provided on the inlet pipe 22, and one end of the pump 23 is connected to the circulation outlet 13, and the other end of the pump 23 is connected to the circulation inlet 14.

[0048] In this embodiment, the pump 23 can increase the pressure of the liquid in the inlet pipe 22, enabling it to overcome gravity and flow upward. Furthermore, by adjusting the pump speed of the pump 23, the flow rate of the liquid can be adjusted, thereby achieving different spray volumes.

[0049] In some embodiments, the gas-liquid separation device 500 further includes an ozone supplier 7, which is connected to a second inlet 12 and is used to introduce ozone into the separation tank 1 through the second inlet 12.

[0050] Specifically, as shown in Figure 1, the ozone supplier 7 is used to provide ozone. An ozone transmission pipe is provided between the ozone supplier 7 and the separation tank 1. The ozone generated by the ozone supplier 7 is transmitted to the separation tank 1 through the second inlet 12 of the separation tank 1 through the ozone transmission pipe.

[0051] Ozone generator 7 produces ozone gas, which enters separator 1 through second inlet 12. Under the action of gas distributor 3, ozone is evenly distributed in the liquid collected in separator 1. The liquid contains organic amines, and ozone has extremely strong oxidizing properties. Ozone reacts with the organic amines in the liquid, oxidizing them into carbon dioxide, nitrogen, and water through oxidation. Since the content of amines is very small, the oxidation products and excess ozone will not affect the purity of carbon dioxide. Under the action of stirrer 4, the liquid and ozone gas are fully mixed and the reaction proceeds fully. The liquid collected in separator 1 can also be directly discharged through valve 6 and second outlet 16.

[0052] The liquid collected in separator 1 can enter the spray head 21 through the circulation outlet 13 and the circulation inlet 14 under the action of pump 23. The spray head 21 can disperse the liquid into fine droplets, which can fully contact the gas-liquid mixture entering the separator 1 through the first inlet 11 from top to bottom, increasing the contact between the fine droplets and the gas-liquid mixture. Since there is dissolved ozone in the water, the organic compounds such as alkanolamines in the mixed gas can be oxidized into carbon dioxide, nitrogen and water through oxidation. The alkanolamines in the gas-liquid mixture are removed to form a mixed gas. The mixed gas passes through the packing layer 51, which forms a channel in the separator 1. The mixed gas flows from the packing layer... The gas enters the packing layer 51 below 51. Due to the blocking and dispersing effect of the packing, the gas forms many tiny droplets in the packing layer 51, further increasing the contact area between the liquid and the gas. As a result, the liquid in the gas settles in the packing layer 51 and then falls to the bottom of the tank. The purified gas passes through the demister 52 to completely remove the mist particles and slurry droplets entrained in the carbon dioxide gas, resulting in pure carbon dioxide gas. Through the gas-liquid separation device 500 of this embodiment, alkanolamines carried in carbon dioxide gas can be removed, as well as alkanolamines in liquid, resulting in higher purity of the separated gas and the liquid being able to directly meet emission requirements, reducing pollution.

[0053] The carbon dioxide capture system of this disclosure includes the gas-liquid separation device 500 of the above embodiments.

[0054] Specifically, as shown in Figure 2, the carbon dioxide capture system includes a pre-washing tower 100, an absorption tower 200, and a regeneration tower 300. The pre-washing tower 100 is used to pre-wash the flue gas. The pre-washed flue gas is then transferred to the absorption tower 200, where the absorbent absorbs the carbon dioxide in the flue gas to form a rich liquid. The rich liquid flows out of the absorption tower 200 and into the regeneration tower 300, where it is regenerated. During the regeneration process, the carbon dioxide in the rich liquid is desorbed to form a lean liquid. The lean liquid flows out of the regeneration tower 300 and back to the absorption tower 200 to form a cycle. The carbon dioxide, carrying some water vapor and amine vapor, is discharged from the regeneration tower 300 and enters the gas-liquid separator 500 for separation.

[0055] The carbon dioxide capture system also includes a heat exchanger 400, which is located between the regeneration tower 300 and the absorption tower 200. The heat exchanger 400 is used to exchange heat between the rich liquid and the lean liquid, thereby increasing the temperature of the rich liquid entering the regeneration tower 300 and decreasing the temperature of the lean liquid entering the absorption tower 200.

[0056] The carbon dioxide capture system of this embodiment removes organic alcohol amines from the gas-liquid mixture in situ by embedding the gas-liquid separator 500 into the carbon dioxide capture system. The internal water can be recycled and reused without adding other treatment steps, so as to meet the discharge requirements, save wastewater treatment costs and time, and increase the environmental friendliness of the carbon capture system.

[0057] Furthermore, this embodiment can also remove organic alcohol amines entrained in carbon dioxide regeneration gas, resulting in purer carbon dioxide and reducing the pollution of the environment by volatile organic compounds.

[0058] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0061] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0062] In this disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0063] It is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A gas-liquid separation device, comprising: a separation tank having a first inlet and a second inlet, the first inlet and the second inlet being arranged in an extension direction of the separation tank, and the first inlet being arranged above the second inlet, the first inlet being configured to introduce a gas-liquid mixture into the separation tank, and the second inlet being configured to introduce ozone gas into the separation tank; a spraying assembly comprising a spraying head and a liquid inlet pipe, the separation tank having a circulation outlet arranged in a circumferential direction of the separation tank and spaced apart from the second inlet, one end of the liquid inlet pipe being connected to the spraying head, and the other end of the liquid inlet pipe being in communication with the circulation outlet to transfer liquid collected in the separation tank to the spraying head, the spraying head being arranged in the separation tank and above the first inlet, and the spraying head being configured to spray the gas-liquid mixture entering the separation tank. 2.The gas-liquid separation device according to claim 1, further comprising a gas distributor arranged in the separation tank and connected to an inner wall surface of the separation tank, the gas distributor being arranged between the first inlet and the second inlet. 3.The gas-liquid separation device according to claim 2, further comprising an agitator, at least a part of the agitator being arranged in the separation tank, the agitator being arranged below the gas distributor, and the agitator being configured to agitate the liquid collected in the separation tank. 4.The gas-liquid separation device according to any one of claims 1 to 3, further comprising a separation assembly comprising a packing layer arranged in the separation tank, the packing layer being arranged in the extension direction of the separation tank and above the spraying head. 5.The gas-liquid separation device according to claim 4, wherein the separation assembly further comprises a demister arranged in the separation tank, the demister being arranged in the extension direction of the separation tank and away from the spraying head. 6.The gas-liquid separation device according to claim 5, wherein the separation tank has a first outlet and a second outlet, the first outlet and the second outlet being arranged in the extension direction of the separation tank, the first outlet being arranged above the demister, the first outlet being configured to discharge the gas after passing through the demister, and the second outlet being arranged at a bottom of the separation tank, the second outlet being configured to discharge the liquid collected in the separation tank. 7.The gas-liquid separation device according to claim 6, further comprising a valve in communication with the second outlet, the valve being configured to control opening and closing of the second outlet. 8.The gas-liquid separation device according to any one of claims 1 to 7, wherein the spraying assembly further comprises a pump, the separation tank having a circulation inlet arranged in the extension direction of the separation tank and spaced apart from the circulation outlet, the pump being arranged on the liquid inlet pipe, one end of the pump being in communication with the circulation outlet, and the other end of the pump being in communication with the circulation inlet.

9. The gas-liquid separation device according to any one of claims 1 to 8, further comprising an ozone supply in communication with the second inlet, the ozone supply being configured to introduce ozone into the separation canister through the second inlet.

10. A carbon dioxide capture system comprising the gas-liquid separation device according to any one of claims 1 to 9.

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