Amine aerosol removal device, method and carbon capture system

Abstract

The present invention discloses an amine aerosol removal device, which relates to the technical field of carbon capture, and comprises a main shell, a charging device, a foam generating device and a packing layer. The main shell is provided with a smoke inlet and an exhaust port, wherein the smoke inlet can allow smoke to enter the main shell, and the exhaust port can allow treated smoke to be discharged; the charging device is arranged in the main shell, and can charge the amine aerosol in the smoke; the foam generating device can generate foam, and pass the foam into the main shell, so that the foam contacts and mixes with the charged amine aerosol to form a foam mixture; wherein the foam is an ionic foam with a surface charge, and the polarity is opposite to that of the charged amine aerosol; the packing layer is arranged in the main shell, and the amine aerosol in the foam mixture can be aggregated and removed with the foam in the packing layer. The present invention also discloses an amine aerosol removal method and a carbon capture system. The present invention can strengthen the aggregation process of the amine aerosol and the foam, thereby improving the removal effect of the amine aerosol.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon capture, and in particular to an amine aerosol removal device, method and a carbon capture system. Background Art

[0002] CO2 generated by fossil energy utilization accounts for about 90% of total CO2 emissions. "Building first and then breaking" to promote fossil energy pollution reduction and carbon reduction and new energy development and utilization has become an important consensus for my country to achieve its dual carbon goals. Organic amines absorb CO2 with high absorption efficiency, good adaptability, and mature technology. It is the CO2 capture technology with the greatest industrial application potential at this stage. In recent years, it has made great progress in basic theory and technical research, and is gradually developing into one of the bottom-up technologies for controlling carbon emissions in the future process of fossil energy utilization.

[0003] High energy consumption is a major challenge facing amine-based carbon capture technology. Existing studies have focused on reducing system operating costs by developing efficient absorbents or optimizing absorption processes. Currently, the operating costs of the most advanced amine-based carbon capture systems have been reduced to less than 200 yuan / ton of CO2. In addition to high energy consumption, the latest test data shows that organic amine emissions during carbon capture cannot be ignored. The mass concentration of amine emissions can reach up to 3000 mg / m 3 Amine emissions not only directly cause operating losses of absorbents, but also serve as important precursors of haze after entering the atmosphere, increasing the nucleation rate of aerosols by hundreds or thousands of times. Therefore, the emission of organic amines in amine-based carbon capture systems is becoming a new challenge for their large-scale promotion.

[0004] The amine emission forms of amine carbon capture mainly include physical entrainment, gaseous amines and amine aerosols. Traditional water scrubbers and demisters only have a good control effect on gaseous amines or entrained amine droplets, but the removal efficiency of small-particle amine aerosols formed secondary is low. The latest research found that when there are certain heterogeneous nuclei such as sulfuric acid mist and carbon soot in the flue gas, the concentration of amine aerosols will increase sharply and become the dominant part of amine emissions. Some scholars have used wet electrostatic demisters and Brownian diffusers for amine aerosol removal, and the removal effect is obvious. However, compared with solid particles, amine aerosols have the characteristics of high viscosity, hygroscopicity, deformation, fragmentation and aggregation, and are prone to problems such as difficulty in removal, component blockage and increased pressure drop. Therefore, it is urgent to develop a special high-efficiency separation technology suitable for the physical and chemical characteristics of organic amine aerosols.

[0005] Thompson first used colloidal gas foam (CGA) for amine emission control in 2014. This method fully considered the physicochemical properties of organic amine aerosols. The main principle of separating amine aerosols is to utilize the collision and aggregation of amine aerosols and bubbles. However, small-particle amine aerosols have low momentum in the process of colliding with foams, and it is difficult to effectively overcome the collision energy barrier, so the removal effect is not ideal. Summary of the invention

[0006] The object of the present invention is to provide an amine aerosol removal device, method and carbon capture system to solve the problems existing in the above-mentioned prior art, and to strengthen the aggregation process of amine aerosol and foam, thereby improving the removal effect of amine aerosol.

[0007] To achieve the above object, the present invention provides the following solutions:

[0008] The present invention provides an amine aerosol removal device, comprising:

[0009] A main shell, wherein the main shell is provided with a smoke inlet and an exhaust port, wherein the smoke inlet is capable of allowing smoke to enter the main shell, and the exhaust port is capable of allowing processed smoke to be discharged;

[0010] A charging device, the charging device is disposed in the main housing and is capable of charging the amine aerosol in the smoke entering the main housing;

[0011] A foam generating device, which is capable of generating foam and passing the foam into the main housing so that the foam contacts and mixes with the charged amine aerosol to form a foam mixture; wherein the foam is an ionic foam with a charged surface, and the foam has a polarity opposite to that of the charged amine aerosol;

[0012] A packing layer is arranged in the main shell, and the amine aerosol in the foam mixture can be aggregated with the foam in the packing layer and removed.

[0013] Preferably, the amine aerosol removal device further comprises a demisting component, wherein the demisting component is disposed in the main housing and is capable of removing the foam that passes through the packing layer.

[0014] Preferably, the smoke inlet is arranged at the bottom of the side wall of the main shell, the exhaust port is arranged at the top of the main shell, the charging device, the packing layer and the demisting component are arranged in the main shell from bottom to top in sequence, and the foam generating device can pass the foam into the charging device.

[0015] Preferably, the amine aerosol removal device further comprises a cleaning device, which is arranged above the packing layer and can spray cleaning water to clean the packing layer;

[0016] A cleaning water collecting chamber is also provided at the bottom of the main shell, and the cleaning water collecting chamber can collect cleaning water, and the cleaning water collecting chamber can also be connected to the foam generating device to pass the cleaning water in the cleaning water collecting chamber into the foam generating device.

[0017] Preferably, the charging device comprises a high-voltage electrode, and the high-voltage electrode is electrically connected to a high-voltage power supply.

[0018] Preferably, the foam generating device includes a foam generator, the foam generator is connected to a foam delivery pipeline, one end of the foam delivery pipeline away from the foam generator extends into the main shell and is connected to a foam distributor, and the foam distributor is arranged close to the high-voltage electrode.

[0019] Preferably, the high-voltage electrode is provided with multiple circles, and the high-voltage electrodes of all circles are arranged in parallel; the foam distributor includes a foam distribution pipe, and the foam distribution pipe is provided with multiple circles, and the foam distribution pipes of all circles and the high-voltage electrodes of all circles are arranged alternately from inside to outside; wherein, the foam distribution pipe is arranged in parallel with the high-voltage electrode, and the outlet of the foam distribution pipe is close to the high-voltage electrode;

[0020] The high voltage electrode is separated from the foam distribution pipe by a gas-lifting and liquid-holding component, and a plurality of through holes are arranged on the side wall of the gas-lifting and liquid-holding component.

[0021] Preferably, the filler layer is a polypropylene filler layer, wherein the filler in the polypropylene filler layer is a polypropylene filler formed by modifying maleic anhydride grafted polypropylene.

[0022] The present invention also provides an amine aerosol removal method, which uses the above-mentioned amine aerosol removal device and comprises the following steps:

[0023] S1. charging the amine aerosol in the flue gas by the charging device, and then contacting and mixing the charged amine aerosol with foam to form a foam mixture, wherein the foam is an ionic foam with a surface charge and has a polarity opposite to that of the charged amine aerosol;

[0024] S2. The amine aerosol in the foam mixture is allowed to aggregate with the foam in the filler layer and then be removed.

[0025] The present invention also provides a carbon capture system, comprising an amine carbon capture absorption tower and the above-mentioned amine aerosol removal device, wherein the flue gas inlet of the amine aerosol removal device is connected to the flue gas outlet of the amine carbon capture absorption tower.

[0026] Compared with the prior art, the present invention has achieved the following technical effects:

[0027] In the present invention, the amine aerosol in the flue gas is charged by a charging device, and charged foam is generated by a foam generating device, and the polarity of the foam and the amine aerosol are opposite; the present invention starts from both the amine aerosol and the foam, so that the charged amine aerosol collides and aggregates with the foam of opposite polarity, and due to the introduction of the effect of electrostatic attraction, the aggregation process of the amine aerosol and the foam is strengthened, and the aggregation and separation efficiency can be significantly improved, thereby improving the removal effect of the amine aerosol. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 This is a schematic diagram of the structure of an amine aerosol removal device in an embodiment of the present invention;

[0030] Figure 2 Schematic diagram of the distribution of high voltage electrodes and foam distributors in an embodiment of the present invention;

[0031] Explanation of the reference numerals: 1 is a flue gas inlet, 2 is a high-voltage electrode, 3 is a gas-raising and liquid-holding component, 4 is an insulating fixing, 5 is a foam distributor, 6 is a high-voltage power supply, 7 is a packing layer, 8 is a cleaning device, 9 is a demisting component, 10 is a cleaning water collecting chamber, 11 is a foam generator, and 12 is a foam transport pump. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The object of the present invention is to provide an amine aerosol removal device, method and carbon capture system to solve the problems existing in the above-mentioned prior art, and to strengthen the aggregation process of amine aerosol and foam, thereby improving the removal effect of amine aerosol.

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Embodiment 1

[0036] like Figure 1 and Figure 2 As shown, an amine aerosol removal device is provided in this embodiment, which mainly includes: a main shell, a charging device, a foam generating device and a packing layer 7; specifically, a smoke inlet 1 and an exhaust port are provided on the main shell, the smoke inlet 1 can allow smoke to enter the main shell, and the exhaust port can allow the treated smoke to be discharged; wherein, the amine aerosol removal device in this embodiment can be arranged at the outlet of the amine carbon capture absorption tower, and the smoke at this time is the smoke after carbon capture discharged from the amine carbon capture absorption tower, which contains a large amount of fine organic amine aerosol, and enters the main shell from the smoke inlet 1. The charging device is arranged in the main shell, and can charge the amine aerosol in the flue gas; the foam generating device can generate colloidal foam, and pass the foam into the main shell, so that the foam and the charged amine aerosol are in contact and mixed to form a foam mixture; wherein the foam is an ionic foam with surface charge, and the polarity of the foam is opposite to that of the charged amine aerosol; the packing layer 7 is arranged in the main shell, and the amine aerosol in the foam mixture can be aggregated and removed with the foam in the packing layer 7.

[0037] In this embodiment, the amine aerosol in the flue gas is charged by a charging device, and charged foam is generated by a foam generating device, and the polarity of the foam and the amine aerosol are opposite. This embodiment starts from both the amine aerosol and the foam, so that the charged amine aerosol collides and aggregates with the foam of opposite polarity. Due to the introduction of electrostatic attraction, the aggregation process of the amine aerosol and the foam is strengthened, which can significantly improve the aggregation and separation efficiency, thereby improving the removal effect of the amine aerosol.

[0038] In this embodiment, the amine aerosol removal device further includes a demisting component 9, which is disposed in the main housing and can remove the foam that passes through the packing layer 7; specifically, after the amine aerosol and the foam are aggregated and removed in the packing layer 7, the foam can continue to pass through the packing layer 7 and merge and break, eventually forming droplets with a particle size of tens of microns, which are separated from the flue gas by the demisting component 9. The demisting component 9 can be a ridge-type demisting device or a baffle-type demisting device, or other types of demisting devices can be selected according to specific work needs.

[0039] As a preferred implementation, in this embodiment, the smoke inlet 1 is arranged at the bottom of the side wall of the main shell, the exhaust port is arranged at the top of the main shell, the charging device, the packing layer 7 and the demisting component 9 are arranged in the main shell from bottom to top in sequence, and the foam generating device can pass the foam into the charging device.

[0040] Furthermore, the locations of the smoke inlet 1 and the exhaust port on the main shell, as well as the locations of the charging device, the packing layer 7 and the demisting component 9 can also be selected according to specific work needs; for example, the smoke inlet 1 and the exhaust port can be respectively arranged on both sides of the main shell, and the charging device, the packing layer 7 and the demisting component 9 are arranged in sequence along the direction from the smoke inlet 1 to the exhaust port inside the main shell.

[0041] In this embodiment, the amine aerosol removal device further includes a cleaning device 8, which is arranged above the packing layer 7 and below the demisting component 9, and can spray cleaning water to clean the packing layer 7; when the amine aerosol is aggregated with the foam in the packing layer 7 for a long time, the surface of the packing in the packing layer 7 may adhere to the organic amine, so the cleaning device 8 is arranged to regularly clean the packing layer 7. Specifically, the cleaning device 8 mainly includes a water supply pipe, and a plurality of spray heads are arranged on the water supply pipe. The cleaning water is provided through the water supply pipe, and the water is sprayed downward through the spray heads to clean the packing layer 7; wherein, the cleaning water can be process water.

[0042] Furthermore, a washing water collecting chamber 10 is provided at the bottom of the main housing, and the washing water collecting chamber 10 can collect washing water, and the washing water collecting chamber 10 can also be connected to the foam generating device, so that the washing water in the washing water collecting chamber 10 can be passed into the foam generating device for recycling, or the washing water can also be discharged. Moreover, the droplets formed after the foam is broken can also fall into the washing water collecting chamber 10 for collection.

[0043] In this embodiment, the charging device mainly includes a high-voltage electrode 2, which is fixed by an insulating fixture 4, and the high-voltage electrode 2 is electrically connected to a high-voltage power supply 6, wherein the high-voltage electrode 2 is provided with multiple circles, and the high-voltage electrodes 2 of all circles are arranged in parallel. Specifically, all high-voltage electrodes 2 are arranged vertically to form an array of acupuncture electrode assemblies or sawtooth disc electrode assemblies, or electrode assemblies in other distribution forms can also be used; both sides of the electrode assembly extend out of the main shell and are fixed by insulating fixtures 4, wherein the insulating fixture 4 can be made of insulating materials such as ceramics and glass, and mainly includes an insulating support frame, and both sides of the electrode assembly are fixed by an insulating fixture, and the outer cover of the insulating fixture is provided with an insulating shell for protection. The high-voltage power supply 6 is also arranged outside the main shell, and it can be extended into one of the insulating shells through a wire to connect with the electrode assembly.

[0044] In this embodiment, the high-voltage power supply 6 is preferably a high-frequency DC power supply, whose frequency is greater than or equal to 20 Hz, and the operating voltage is 20-60 kV, and the high-voltage power supply 6 can be a positive power supply or a negative power supply. When the amine aerosol removal device is in operation, the high-voltage power supply 6 discharges through the high-voltage electrode 2 to ionize the flue gas and charge the amine aerosol in the flue gas, and the charge amount is determined by the discharge voltage, discharge current, aerosol concentration, flue gas flow and other parameters; in actual operation, the operation of the high-voltage power supply 6 can be dynamically adjusted according to the changes in the flue gas parameters to ensure the effective charging of the amine aerosol.

[0045] In this embodiment, the foam generating device includes a foam generator 11, the foam generator 11 is connected to a foam delivery pipeline, one end of the foam delivery pipeline away from the foam generator 11 extends into the main housing, and is connected to a foam distributor 5, and the foam distributor 5 is arranged close to the high-voltage electrode 2. The foam generator 11 can generate colloid foam, and the generated foam is transported to the foam distributor 5 through the foam delivery pipeline, and then the foam is evenly transported to the surrounding of the high-voltage electrode 2 through the foam distributor 5, and a foam delivery pump 12 is arranged on the foam delivery pipeline to provide power for foam delivery.

[0046] In this embodiment, the foam generator 11 preferably uses a high-speed impeller foam generator, and the parameters for generating foam can be dynamically adjusted according to the discharge parameters. If the amine aerosol is positively charged, the foam can be generated by an anionic surfactant. If the amine aerosol is negatively charged, the foam can be generated by a cationic surfactant, and the concentration of the surfactant can be adjusted to match the discharge intensity.

[0047] As a preferred implementation mode, in this embodiment, the high-voltage power supply 6 is preferably a negative high-frequency DC power supply, the surfactant used in the foam generator 11 is preferably a cationic surfactant (cetyltrimethylammonium bromide), and the impeller speed and the amount of surfactant added are nonlinearly adaptively adjusted according to the front-end flue gas flow, discharge voltage and current.

[0048] In this embodiment, if Figure 2 As shown, the foam distributor 5 includes a foam distribution pipe, and the foam distribution pipe is provided with multiple circles. The foam distribution pipes of all circles and the high-voltage electrodes 2 of all circles are alternately arranged from the inside to the outside, that is, multiple circles of foam distribution pipes and high-voltage electrodes 2 are alternately arranged from the center position of the main shell to the outer edge, and the foam distribution pipe of the innermost circle can be only one; wherein the foam distribution pipe is arranged parallel to the high-voltage electrode 2, and the outlet of the foam distribution pipe is arranged downward close to the high-voltage electrode 2.

[0049] In this embodiment, the high-voltage electrode 2 is separated from the foam distribution pipe by a gas-lifting and liquid-holding component 3; wherein the gas-lifting and liquid-holding component 3 is a component that allows smoke to pass through and mix with foam and run upward, and a plurality of gas-lifting and liquid-holding components 3 are provided, and a gas-lifting and liquid-holding component 3 is provided above each high-voltage electrode 2. Specifically, the gas-lifting and liquid-holding component 3 is made of conductive material, and is a vertically arranged hollow hexagonal prism structure, with an open bottom and a closed top, and the high-voltage electrode 2 extends from the bottom into the corresponding gas-lifting and liquid-holding component 3 and is located at the center of the gas-lifting and liquid-holding component 3; and a plurality of through holes are vertically arranged on the side wall of the gas-lifting and liquid-holding component 3 to form a hexagonal honeycomb structure, so that the charged amine aerosol and the foam can be fully contacted and mixed. Furthermore, the gas-lifting and liquid-holding components 3 of adjacent circles can be connected, and the gap between the gas-lifting and liquid-holding components 3 of adjacent circles is the installation space of the foam distribution pipe.

[0050] In this embodiment, the overall shape of the gas lifting and liquid holding component 3 and the shape of the through holes on the side wall can be selected according to specific needs. For example, the gas lifting and liquid holding component 3 can also be a pentagonal prism structure or a cylindrical structure, and the through holes can be elliptical or diamond holes, and the opening rate is between 60% and 80%.

[0051] In this embodiment, the closest distance between the high-voltage electrode 2 and the inner wall of the gas-lifting and liquid-holding component 3 is 1 / 2 of the distance between the top of the high-voltage electrode 2 and the inner wall of the gas-lifting and liquid-holding component 3 to avoid local discharge breakdown; the charging process of the amine aerosol mainly occurs in the area of ​​the gas-lifting and liquid-holding component 3, so the gas-lifting and liquid-holding component 3 is connected to the grounding wire to ensure good grounding.

[0052] In this embodiment, the high-voltage electrode 2 and the foam distribution pipe are arranged in a ring-shaped spaced manner. The flue gas flows through the gas-raising and liquid-holding component 3 and flows out from the through holes on all sides, so that the amine aerosol in the flue gas and the foam are fully contacted and mixed. The droplets or cleaning water generated by the foam breakage are gathered at the edge and finally fall into the cleaning water collection chamber 10 along the wall of the main shell.

[0053] In this embodiment, the packing layer 7 is a polypropylene packing layer, wherein the packing in the polypropylene packing layer is preferably a polypropylene packing formed by modifying maleic anhydride grafted polypropylene, and the packing has improved hydrophilicity after modification, which is conducive to surface film formation; further, the packing can be a corrugated packing with an inclination angle of 30° or 45°, with a peak height of not less than 20 mm and a porosity of not less than 95%. The above-mentioned packing used in this embodiment is low in cost, easy to process and shape, and corrosion-resistant, which greatly reduces the investment cost, and the weight is much lower than that of metal packing.

[0054] Embodiment 2

[0055] This embodiment provides an amine aerosol removal method, which uses the amine aerosol removal device described in Example 1 and mainly includes the following steps:

[0056] S1. charging the amine aerosol in the flue gas by the charging device, and then contacting and mixing the charged amine aerosol with foam to form a foam mixture, wherein the foam is an ionic foam with a surface charge and has a polarity opposite to that of the charged amine aerosol;

[0057] S2. The amine aerosol in the foam mixture is allowed to aggregate with the foam in the filler layer 7 and then be removed.

[0058] The specific removal process is as follows:

[0059] The flue gas after carbon capture enters the main shell from the flue gas inlet 1, and the high-voltage electrode 2 discharges at high voltage at the gas-lifting and liquid-holding component 3 to ionize the flue gas and charge the amine aerosol in the flue gas. The foam generated by the foam generator 11 is transported to the foam distributor 5 through the foam conveying pipeline. After the foam is output, it contacts and mixes with the flue gas through the through holes around the gas-lifting and liquid-holding component 3. A small part of the amine aerosol in the flue gas is aggregated with the foam and separated in this process, and the remaining part moves upward with the flue gas and foam to reach the packing layer 7. Due to the presence of the packing, the flue gas and the foam are strongly mixed, so most of the amine aerosol in the flue gas is aggregated with the foam in this area and removed.

[0060] As the foam continues to move upward in the packing layer 7, the foam merges and breaks, eventually forming droplets with a particle size of several tens of microns. The droplets of this particle size are separated by the demisting component 9, and the remaining smoke is discharged from the exhaust port.

[0061] As the polymerization process proceeds for a long time in the packing layer 7, organic amines may adhere to the surface of the packing. The packing layer 7 is regularly cleaned by the cleaning device 8, and the cleaned water falls into the cleaning water collection chamber 10 and eventually returns to the foam generator 11 for recycling or direct discharge.

[0062] Embodiment 3

[0063] This embodiment provides a carbon capture system, including an amine carbon capture absorption tower and the amine aerosol removal device described in Embodiment 1, wherein the flue gas inlet 1 of the amine aerosol removal device is connected to the flue gas outlet of the amine carbon capture absorption tower.

[0064] In summary, the present invention starts from the technical principles of electrocoagulation and chemical agglomeration, and innovatively proposes a new technology of amine aerosol charging enhancement and heteropolar ion foam aggregation and separation. Compared with the original foam separation technology, the aerosol charging link is added, and the charged characteristics of the ionic foam surface are utilized to enhance the aerosol-foam aggregation process.

[0065] Moreover, although the present invention utilizes the principle of heteropolar electrocoagulation, it is essentially different from the traditional electrocoagulation, which is specifically reflected in:

[0066] 1) Traditional heteropolar electrocoagulation requires two positive and negative power supplies to charge the particles in the flue gas with opposite polarities in two different flue gas channels, so the structure is complex and the equipment cost is high; while the present invention effectively utilizes the characteristic of ionic foam itself that it can be charged, reduces the use of a set of power supplies, simplifies the process and reduces power consumption.

[0067] 2) Due to the high viscosity of organic amines, they are easily accumulated on the electrode surface and cause abnormal discharge and other problems. However, in the present application, this problem is effectively solved by combining with colloidal foam, and the surface groups of the colloidal foam can also produce a beneficial effect similar to chemical agglomeration with organic amine molecules.

[0068] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An amine aerosol removal device, characterized in that: include: A main shell, wherein the main shell is provided with a smoke inlet and an exhaust port, wherein the smoke inlet is capable of allowing smoke to enter the main shell, and the exhaust port is capable of allowing processed smoke to be discharged; A charging device, the charging device is disposed in the main housing and is capable of charging the amine aerosol in the smoke entering the main housing; A foam generating device, which is capable of generating foam and passing the foam into the main housing so that the foam contacts and mixes with the charged amine aerosol to form a foam mixture; wherein the foam is an ionic foam with a charged surface, and the foam has a polarity opposite to that of the charged amine aerosol; A packing layer, wherein the packing layer is disposed in the main shell, and the amine aerosol in the foam mixture can be aggregated with the foam in the packing layer and removed; The charging device includes a high-voltage electrode, which is electrically connected to a high-voltage power supply; the foam generating device includes a foam generator, which is connected to a foam delivery pipeline, one end of the foam delivery pipeline away from the foam generator extends into the main shell, and is connected to a foam distributor, which is arranged close to the high-voltage electrode; the high-voltage electrode is provided with multiple circles, and the high-voltage electrodes of all circles are arranged in parallel; the foam distributor includes a foam distribution pipe, which is provided with multiple circles, and the foam distribution pipes of all circles and the high-voltage electrodes of all circles are arranged alternately from inside to outside; wherein, the foam distribution pipe is arranged in parallel with the high-voltage electrode, and the outlet of the foam distribution pipe is close to the high-voltage electrode; the high-voltage electrode and the foam distribution pipe are separated by a gas-raising and liquid-holding component, and a plurality of through holes are arranged on the side wall of the gas-raising and liquid-holding component.

2. The amine aerosol removal device according to claim 1, characterized in that: The amine aerosol removal device further comprises a demisting component, which is arranged in the main housing and can remove the foam that passes through the filler layer.

3. The amine aerosol removal device according to claim 2, characterized in that: The smoke inlet is arranged at the bottom of the side wall of the main shell, the exhaust port is arranged at the top of the main shell, the charging device, the packing layer and the demisting component are arranged in the main shell from bottom to top in sequence, and the foam generating device can pass the foam into the charging device.

4. The amine aerosol removal device according to claim 3, characterized in that: The amine aerosol removal device further comprises a cleaning device, which is arranged above the packing layer and can spray cleaning water to clean the packing layer; A cleaning water collecting chamber is also provided at the bottom of the main shell, and the cleaning water collecting chamber can collect cleaning water, and the cleaning water collecting chamber can also be connected to the foam generating device to pass the cleaning water in the cleaning water collecting chamber into the foam generating device.

5. The amine aerosol removal device according to claim 1, characterized in that: The filler layer is a polypropylene filler layer, wherein the filler in the polypropylene filler layer is a polypropylene filler formed by modifying maleic anhydride grafted polypropylene.

6. A method for removing amine aerosols, characterized in that: The amine aerosol removal device according to any one of claims 1 to 5 comprises the following steps: S1. charging the amine aerosol in the flue gas by the charging device, and then contacting and mixing the charged amine aerosol with foam to form a foam mixture, wherein the foam is an ionic foam with a surface charge and has a polarity opposite to that of the charged amine aerosol; S2. The amine aerosol in the foam mixture is allowed to aggregate with the foam in the filler layer and then be removed.

7. A carbon capture system, characterized in that: It comprises an amine carbon capture absorption tower and the amine aerosol removal device according to any one of claims 1 to 5, wherein the flue gas inlet of the amine aerosol removal device is connected to the flue gas outlet of the amine carbon capture absorption tower.

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