Carbon capture system and heat exchange assembly for carbon capture system

Abstract

The invention provides a carbon capture system and a heat exchange assembly for the carbon capture system. The heat exchange assembly comprises an exhaust device, the exhaust device is provided with a first liquid inlet, a second liquid inlet, a first liquid outlet, a second liquid outlet and an exhaust port which are communicated with the internal space, the first liquid inlet is used for directly or indirectly receiving rich liquid from the absorption tower, and the first liquid outlet is used for directly or indirectly conveying part of the rich liquid to the regeneration tower; the exhaust port is used for exhausting gas escaping from the interior of the exhaust device; the heat exchanger communicates with the second liquid inlet and the second liquid outlet and is used for receiving the rich liquid from the second liquid outlet and conveying the rich liquid back into the exhaust device through the second liquid inlet after the rich liquid is subjected to temperature rise and heat exchange in the heat exchanger, and carbon dioxide is desorbed from the heated rich liquid in the exhaust device; the heat of the high-temperature medium in the carbon capture system can be recycled, and the desorption efficiency of carbon dioxide in the rich solution is improved by utilizing the recycled heat.

Description

Technical Field

[0001] This invention relates to the field of gas treatment technology, and in particular to a carbon capture system and a heat exchange component for the carbon capture system. Background Technology

[0002] The large amounts of flue gas generated by factories need to be treated and purified before being released. Carbon capture (CC) is one such method. CC technology not only reduces greenhouse gas emissions but also allows for the collection and utilization of carbon dioxide. CC technology primarily utilizes a lean absorbent solution to react with the flue gas within the reaction space of an absorption tower, thereby absorbing carbon dioxide from the flue gas. The enriched absorbent solution, having absorbed carbon dioxide, is then sent to a regeneration tower, where it is heated and releases carbon dioxide, which is then subsequently stored or utilized.

[0003] Because the entire carbon capture process involves some high-temperature reactions, some high-temperature media are inevitably generated. How to effectively recover and utilize the heat in the carbon capture process is also one of the main directions for improvement of carbon capture systems. Summary of the Invention

[0004] One object of the present invention is to provide a carbon capture system capable of recovering heat and improving carbon dioxide desorption efficiency, as well as a heat exchange component for the carbon capture system.

[0005] Specifically, the present invention provides a heat exchange assembly for a carbon capture system, comprising:

[0006] An exhaust device is provided with a first liquid inlet, a second liquid inlet, a first liquid outlet, a second liquid outlet, and an exhaust port communicating with the internal space. The first liquid inlet is directly or indirectly connected to the absorption tower of the carbon capture system to directly or indirectly receive the rich liquid from the absorption tower. The first liquid outlet is directly or indirectly connected to the regeneration tower of the carbon capture system to directly or indirectly transport a portion of the rich liquid to the regeneration tower. The exhaust port is used to discharge gases escaping from inside the exhaust device.

[0007] A heat exchanger, which is connected to the second liquid inlet and the second liquid outlet, is used to receive the rich liquid from the second liquid outlet and to heat the rich liquid inside it before returning it to the exhaust device through the second liquid inlet.

[0008] Optionally, the exhaust path of the exhaust device is provided with a regulating valve that can adjust the opening degree, and a temperature sensor for detecting the temperature of the rich liquid is provided in the path between the exhaust device and the heat exchanger. The regulating valve is configured to adjust the opening degree according to the detection value of the temperature sensor.

[0009] Optionally, the heat exchanger is connected to the regeneration tower to receive product gas from the regeneration tower for heat exchange with the rich liquid from the exhaust device; or,

[0010] The heat exchanger is used to receive the condensate from the regeneration tower, so as to exchange heat between the condensate and the rich liquid from the exhaust device.

[0011] Optionally, the exhaust device is provided with a heat exchange tube, which directly or indirectly receives lean liquid from the regeneration tower, so that the rich liquid entering the exhaust device exchanges heat with the lean liquid flowing through the heat exchange tube.

[0012] Optionally, the heat exchange assembly further includes multiple lean and rich liquid heat exchangers, which are connected in series between the absorption tower and the regeneration tower, and the exhaust device is provided between at least one pair of adjacent lean and rich liquid heat exchangers.

[0013] Optionally, the exhaust device includes a demister for purifying the gas flowing toward the exhaust port.

[0014] Optionally, the exhaust device includes a first liquid dispersion device and a second liquid dispersion device, wherein the first liquid dispersion device is connected to the first liquid inlet and the second liquid dispersion device is connected to the second liquid inlet.

[0015] Optionally, both the first liquid dispersion device and the second liquid dispersion device include multiple sets of spray heads to spray liquid into the exhaust device via the spray heads.

[0016] Optionally, the first liquid dispersion device and the second liquid dispersion device are distributed in the vertical direction, and the spray head of the first liquid dispersion device and the spray head of the second liquid dispersion device correspond to each other in the vertical direction, and the spraying directions of the spray head of the first liquid dispersion device and the spray head of the second liquid dispersion device are opposite to each other.

[0017] In another aspect of the invention, a carbon capture system is also provided, comprising:

[0018] Absorption tower, which is used to capture carbon dioxide using lean liquor;

[0019] A regeneration tower, used to desorb carbon dioxide from a rich solution; and

[0020] According to any of the heat exchange components mentioned above.

[0021] This invention incorporates an exhaust device and a heat exchanger within a carbon capture system. The exhaust device directly or indirectly receives the rich liquid from the absorption tower, and a portion of the rich liquid entering the exhaust device is directly or indirectly transported to the regeneration tower, while another portion enters the heat exchanger for heat exchange. The rich liquid in the heat exchanger exchanges heat with the high-temperature medium in the carbon capture system, raising its temperature. The heated rich liquid is then sprayed back to the exhaust device. Because the pressure inside the exhaust device is not as high as inside the regeneration tower, the bubble point of the rich liquid inside the exhaust device, i.e., the temperature at which carbon dioxide can be released, is relatively lower. Therefore, the rich liquid, heated by the product gas from the regeneration tower, can release some carbon dioxide upon returning to the exhaust device. In this way, not only can the heat of the high-temperature medium in the carbon capture system be recovered and utilized, but the recovered heat is also used to improve the desorption efficiency of carbon dioxide in the rich liquid.

[0022] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0023] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0024] Figure 1 This is a schematic diagram of a carbon capture system according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of a heat exchange assembly according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of a carbon capture system according to another embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of a heat exchange assembly according to another embodiment of the present invention. Detailed Implementation

[0028] Those skilled in the art should understand that the embodiments described below are merely a part of the embodiments of the present invention, and not all of the embodiments of the present invention. These partial embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0029] In the description of this invention, 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," "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 invention 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 invention.

[0030] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] like Figure 1 and Figure 2 As shown, the carbon capture system includes an absorption tower 100, a regeneration tower 200, and a heat exchange assembly 300. The absorption tower 100 is used to capture carbon dioxide using lean liquor. The regeneration tower 200 is used to desorb carbon dioxide from rich liquor. The heat exchange assembly 300 is disposed between the absorption tower 100 and the regeneration tower 200.

[0032] like Figure 1 and Figure 2 As shown, in one embodiment, the heat exchange assembly 300 includes an exhaust device 310 and a heat exchanger 320. The exhaust device 310 is provided with a first liquid inlet 3101, a second liquid inlet 3102, a first liquid outlet 3103, a second liquid outlet 3104, and an exhaust port 3105 communicating with the internal space. The first liquid inlet 3101 is directly or indirectly connected to the absorption tower 100 of the carbon capture system to directly or indirectly receive the rich liquid from the absorption tower 100. The first liquid outlet 3103 is directly or indirectly connected to the regeneration tower 200 of the carbon capture system to directly or indirectly transport a portion of the rich liquid to the regeneration tower 200. The exhaust port 3105 is used to discharge the gas escaping from inside the exhaust device 310. The heat exchanger 320 is connected to the second inlet 3102 and the second outlet 3104, and is used to receive the rich liquid from the second outlet 3104 and heat the rich liquid inside it before returning it to the exhaust device 310 through the second inlet 3102. In other words, the heat exchanger 320 receives the high-temperature medium from the carbon capture system and exchanges heat with the rich liquid from the exhaust device 310.

[0033] It should be noted that the first liquid inlet, the second liquid inlet, the first liquid outlet, the second liquid outlet, and the vent can be openings on the venting device or pipe openings of pipelines connected to the venting device.

[0034] Reference Figure 1 and Figure 2 As shown, specifically, the exhaust device 310 is a tank structure with a certain internal space. The first inlet 3101 of the exhaust device 310 is directly connected to the absorption tower 100, allowing the rich absorbent liquid after reaction with the flue gas in the absorption tower 100 to flow directly into the exhaust device 310 through the first inlet 3101. The first outlet 3103 of the exhaust device 310 is directly connected to the regeneration tower 200, allowing a portion of the rich liquid in the exhaust device 310 to flow to the regeneration tower 200. Simultaneously, the second outlet 3104 of the exhaust device 310 is connected to the heat exchanger 320, allowing a portion of the rich liquid in the exhaust device 310 to flow to the heat exchanger 320.

[0035] Continue to refer to Figure 1 and Figure 2 As shown, in one embodiment, heat exchanger 320 is connected to regeneration tower 200 to receive product gas from regeneration tower 200 for heat exchange with rich liquid from exhaust device 310. Specifically, the absorbent rich liquid precipitates carbon dioxide under the action of high-temperature steam in regeneration tower 200 and is discharged from regeneration tower 200, which is the product gas. Therefore, the temperature of the product gas generated in regeneration tower 200 is very high. Thus, the product gas generated in regeneration tower 200 is transported to heat exchanger 320, so that the product gas and the rich liquid from exhaust device 310 exchange heat in heat exchanger 320, raising the temperature of the rich liquid. The heated rich liquid is then transported back to exhaust device 310 through second inlet 3102.

[0036] like Figure 1 and Figure 2 As shown, because the exhaust device 310 does not carry high-temperature steam, the pressure is not as high as that inside the regeneration tower 200. Therefore, the bubble point of the rich liquid in the exhaust device 310, that is, the temperature at which carbon dioxide can be released, is relatively low. Thus, when the rich liquid heated by the product gas of the regeneration tower 200 returns to the exhaust device 310, some carbon dioxide can be released.

[0037] In this embodiment, by setting up an exhaust device 310 and a heat exchanger 320 in the carbon capture system, the exhaust device 310 directly or indirectly receives the rich liquid from the absorption tower 100, and a portion of the rich liquid entering the exhaust device 310 is directly or indirectly transported to the regeneration tower 200, while a portion enters the heat exchanger 320 for heat exchange. The rich liquid exchanges heat with the high-temperature medium in the carbon capture system in the heat exchanger 320, thus raising its temperature. The heated rich liquid is then sprayed back into the exhaust device 310. Because the pressure inside the exhaust device 310 is not as high as inside the regeneration tower 200, the bubble point of the rich liquid inside the exhaust device 310, i.e., the temperature at which carbon dioxide can be released, is relatively lower. Therefore, the rich liquid heated by the product gas of the regeneration tower 200 can release some carbon dioxide after returning to the exhaust device 310. In this way, not only can the heat of the high-temperature medium in the carbon capture system be recovered and utilized, but the recovered heat is also used to improve the desorption efficiency of carbon dioxide in the rich liquid.

[0038] It should be noted that in some other embodiments, the heat exchanger can also receive other high-temperature media in the carbon capture system to recover heat. For example, it can be used to receive condensate from the regeneration tower to recover the heat of the condensate by exchanging heat with the rich liquid from the exhaust device, or it can be used to receive flue gas before entering the absorption tower to recover the heat of the flue gas by exchanging heat with the rich liquid from the exhaust device, and so on.

[0039] like Figure 1 and Figure 2 As shown, in one embodiment, the exhaust device 310 is equipped with a heat exchange tube 330. The heat exchange tube 330 directly or indirectly receives lean liquid from the regeneration tower 200, so that the rich liquid entering the exhaust device 310 exchanges heat with the lean liquid flowing through the heat exchange tube 330. Specifically, one end of the heat exchange tube 330 is directly connected to the regeneration tower 200, thereby directly receiving the lean liquid from the regeneration tower 200, which is the lean liquid formed after the rich liquid has desorbed carbon dioxide by the action of high-temperature steam. The other end is directly connected to the absorption tower 100, thereby transporting the lean liquid to the absorption tower 100 for reaction with flue gas again. During the flow of the lean liquid in the heat exchange tube 330, it can exchange heat with the rich liquid in the exhaust device 310, so that the rich liquid in the exhaust device 310 absorbs heat, recovers and utilizes the heat of the lean liquid, and further improves the carbon dioxide desorption efficiency.

[0040] In this embodiment, by setting a heat exchange tube 330 inside the exhaust device 310, the heat exchange tube 330 can directly or indirectly receive the lean liquid from the regeneration tower 200. This allows the rich liquid entering the exhaust device 310 to exchange heat with the lean liquid flowing through the heat exchange tube 330, thereby recovering and utilizing the heat of the lean liquid generated by the regeneration tower 200. In other words, the exhaust device 310 can act as a lean-rich liquid heat exchanger, which not only further improves the carbon dioxide desorption efficiency of the carbon capture system, but also helps to simplify the structure of the carbon capture system.

[0041] like Figure 1 and Figure 2 As shown, the exhaust path of the exhaust device 310 is equipped with a regulating valve 340 capable of adjusting its opening. A temperature sensor (not shown) for detecting the temperature of the rich liquid is installed in the path between the exhaust device 310 and the heat exchanger 320. The temperature sensor can be installed in the pipeline between the exhaust device 310 and the heat exchanger 320, or it can be installed within the exhaust device 310. The regulating valve 340 is configured to adjust its opening based on the detection value of the temperature sensor. Specifically, the opening of the regulating valve 340 increases as the detection value of the temperature sensor decreases.

[0042] Reference Figure 1 and Figure 2 As shown, specifically, the higher the pressure, the higher the bubble point of the rich liquid. Therefore, when the temperature sensor detects a low value, by increasing the opening of the regulating valve 340, the pressure inside the exhaust device 310 can be reduced, thereby lowering the bubble point temperature of the rich liquid, making it easier for the lower-temperature rich liquid to precipitate carbon dioxide.

[0043] In this embodiment, by setting an adjustable valve 340 on the exhaust path of the exhaust device 310 and a temperature sensor for detecting the temperature of the rich liquid on the path between the exhaust device 310 and the heat exchanger 320, the opening of the adjustable valve 340 can be adjusted according to the detection value of the temperature sensor. When the temperature of the rich liquid is low, by increasing the opening of the adjustable valve 340, the pressure inside the exhaust device 310 can be reduced, thereby lowering the bubble point temperature of the rich liquid. This makes it easier for the lower temperature rich liquid to precipitate carbon dioxide, which in turn helps to improve the carbon dioxide desorption efficiency.

[0044] like Figure 1 and Figure 2 As shown, the exhaust device 310 is equipped with a first liquid dispersion device 350 and a second liquid dispersion device 360. The first liquid dispersion device 350 is connected to the first liquid inlet 3101, and the second liquid dispersion device 360 ​​is connected to the second liquid inlet 3102. Specifically, both the first liquid dispersion device 350 and the second liquid dispersion device 360 ​​include multiple sets of spray heads to spray liquid into the exhaust device 310.

[0045] Those skilled in the art will understand that by using a spray head to spray the rich liquid into the exhaust device 310, the surface area of ​​the rich liquid can be increased, allowing carbon dioxide to be released from the rich liquid more effectively, thereby improving the carbon dioxide desorption efficiency.

[0046] It should be noted that in some other embodiments, the liquid dispersion device may also be other diversion devices, such as a pipe with multiple outlets, so that the rich liquid enters the exhaust device from multiple outlets in the form of multiple liquid streams.

[0047] like Figure 1 and Figure 2 As shown, the first liquid dispersion device 350 and the second liquid dispersion device 360 ​​are distributed vertically, and the spray heads of the first liquid dispersion device 350 and the second liquid dispersion device 360 ​​correspond vertically. Their spray directions are opposite to each other. In other words, the rich liquid sprayed by the spray head of the first liquid dispersion device 350 can collide with the rich liquid sprayed by the spray head of the second liquid dispersion device 360. This allows the rich liquid to form smaller droplets, thereby further improving the efficiency of carbon dioxide desorption. Furthermore, it allows the rich liquid heated by the heat exchanger 320 to mix and exchange heat more thoroughly with the by-product from the absorption tower 100, which also helps to improve the efficiency of carbon dioxide desorption.

[0048] like Figure 1 and Figure 2 As shown, the exhaust device 310 is equipped with a demister 370, which is used to purify the gas flowing to the exhaust port 3105. Specifically, the demister 370 can remove impurities other than carbon dioxide from the gas, such as moisture, to ensure the purity of the carbon dioxide gas flowing out of the exhaust device 310 and also help reduce the damage to the exhaust pipe caused by impurities entering the exhaust pipe.

[0049] like Figure 1 and Figure 2 As shown, the exhaust device 310 is equipped with packing material 380, which allows the rich liquid entering the exhaust device 310 to flow to the outlet after passing through the packing material 380. During the process of the rich liquid flowing through the packing material 380, the rich liquid is dispersed on the surface of the packing material 380, thereby increasing the surface area of ​​the rich liquid and further improving the desorption efficiency of carbon dioxide in the rich liquid.

[0050] like Figure 3 and Figure 4 As shown, in another embodiment, the heat exchange assembly 300 further includes a plurality of lean and rich liquid heat exchangers 390, which are connected in series between the absorption tower 100 and the regeneration tower 200, and an exhaust device 310 is provided between at least one pair of adjacent lean and rich liquid heat exchangers 390.

[0051] like Figure 3 and Figure 4 As shown, the heat exchange assembly 300 includes two lean-rich liquid heat exchangers 390 and an exhaust device 310. The rich liquid flow path of the first lean-rich liquid heat exchanger 390 is connected to the rich liquid outlet of the absorption tower 100 and the first inlet 3101 of the exhaust device 310. The rich liquid flow path of the second lean-rich liquid heat exchanger 320 is connected to the first outlet of the exhaust device 310 and the rich liquid inlet of the regeneration tower 200. This allows the rich liquid flowing from the rich liquid outlet of the absorption tower 100 to pass sequentially through the first lean-rich liquid heat exchanger 320, the exhaust device 310, and the second lean-rich liquid heat exchanger 320 before entering the regeneration tower 200 through the rich liquid inlet. In other words, the exhaust device 310 indirectly receives the rich liquid from the absorption tower 100 through the first inlet 3101.

[0052] For ease of description, the lean-rich liquid heat exchanger 390 between the absorption tower 100 and the exhaust device 310 will be referred to as the front lean-rich liquid heat exchanger 390, and the lean-rich liquid heat exchanger 390 between the regeneration tower 200 and the exhaust device 310 will be referred to as the rear lean-rich liquid heat exchanger 390.

[0053] like Figure 3 and Figure 4 As shown, further, the lean liquid flow path of the rear lean-rich liquid heat exchanger 390 is connected to the lean liquid outlet of the regeneration tower 200 and the lean liquid flow path of the front lean-rich liquid heat exchanger 390. The lean liquid flow path of the front lean-rich liquid heat exchanger 390 is then connected to the lean liquid inlet of the absorption tower 100, so that the lean liquid flowing out of the lean liquid outlet of the regeneration tower 200 passes sequentially through the rear and front lean-rich liquid heat exchangers 390 and then enters the absorption tower 100 through the lean liquid inlet. Furthermore, the rich liquid and the lean liquid exchange in the lean-rich liquid heat exchanger 390 achieve heat exchange. The lean-rich liquid heat exchanger 390 can be any heat exchanger capable of exchanging heat between two fluids.

[0054] Reference Figure 3 and Figure 4 The connection between the exhaust device 310 and the heat exchanger 320 is as described above and will not be repeated here.

[0055] In this embodiment, by placing the exhaust device 310 between the two lean and rich liquid heat exchangers 390, the aforementioned technical effects are achieved. Because the exhaust device 310 can receive the rich liquid from the lean and rich liquid heat exchangers 390, the carbon dioxide released during heat exchange between the rich and lean liquids in the heat exchangers 390 is discharged through the exhaust device 310. This further improves the carbon dioxide desorption efficiency while reducing the amount of gas carried in the subsequent rich liquid, effectively minimizing the impact of gas on the operation of the lean and rich liquid heat exchangers 390 and helping to prevent malfunctions caused by excessive gas in the rich liquid. Simultaneously, it also helps to improve the heat exchange effect between the rich and lean liquids.

[0056] It should be noted that in some other embodiments, the number of lean and rich liquid heat exchangers may be three, four, or more. This can be achieved by providing an exhaust device between every two adjacent lean and rich liquid heat exchangers, or by providing an exhaust device every two or more lean and rich liquid heat exchangers.

[0057] It should be noted that in some other embodiments, the exhaust device can also be equipped with a heat exchange tube, so that the heat exchange tube can be connected to the lean liquid flow path of the two lean and rich liquid heat exchangers in the front and rear, thereby improving the lean and rich liquid heat exchange effect.

[0058] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A heat exchange component for a carbon capture system, characterized in that, include: An exhaust device is provided with a first liquid inlet, a second liquid inlet, a first liquid outlet, a second liquid outlet, and an exhaust port that communicate with the internal space. The first liquid inlet is directly or indirectly connected to the absorption tower of the carbon capture system to receive the rich liquid from the absorption tower directly or indirectly. The first liquid outlet is directly or indirectly connected to the regeneration tower of the carbon capture system to directly or indirectly transport a portion of the rich liquid to the regeneration tower. The exhaust port is used to discharge the gas escaping from inside the exhaust device. and A heat exchanger, which is connected to the second liquid inlet and the second liquid outlet, is used to receive the rich liquid from the second liquid outlet and to heat the rich liquid inside it before returning it to the exhaust device through the second liquid inlet.

2. The heat exchange component for a carbon capture system according to claim 1, characterized in that, The exhaust path of the exhaust device is equipped with a regulating valve that can adjust the opening degree. A temperature sensor for detecting the temperature of the rich liquid is provided in the path between the exhaust device and the heat exchanger. The regulating valve is configured to adjust the opening degree according to the detection value of the temperature sensor.

3. The heat exchange component for a carbon capture system according to claim 1, characterized in that, The heat exchanger is connected to the regeneration tower to receive product gas from the regeneration tower for heat exchange with the rich liquid from the exhaust device; or... The heat exchanger is used to receive the condensate from the regeneration tower, so as to exchange heat between the condensate and the rich liquid from the exhaust device.

4. The heat exchange assembly for a carbon capture system according to claim 1, characterized in that, The exhaust device is equipped with a heat exchange tube, which directly or indirectly receives lean liquid from the regeneration tower, so that the rich liquid entering the exhaust device exchanges heat with the lean liquid flowing through the heat exchange tube.

5. The heat exchange assembly for a carbon capture system according to claim 1, characterized in that, The heat exchange assembly also includes multiple lean and rich liquid heat exchangers, which are connected in series between the absorption tower and the regeneration tower, and the exhaust device is provided between at least one pair of adjacent lean and rich liquid heat exchangers.

6. The heat exchange assembly for a carbon capture system according to claim 1, characterized in that, The exhaust device is equipped with a demister, which is used to purify the gas flowing towards the exhaust port.

7. The heat exchange assembly for a carbon capture system according to claim 1, characterized in that, The exhaust device is equipped with a first liquid dispersion device and a second liquid dispersion device. The first liquid dispersion device is connected to the first liquid inlet, and the second liquid dispersion device is connected to the second liquid inlet.

8. The heat exchange assembly for a carbon capture system according to claim 7, characterized in that, Both the first liquid dispersion device and the second liquid dispersion device include multiple sets of spray heads to spray liquid into the exhaust device via the spray heads.

9. The heat exchange assembly for a carbon capture system according to claim 8, characterized in that, The first liquid dispersion device and the second liquid dispersion device are distributed in the vertical direction, and the spray head of the first liquid dispersion device and the spray head of the second liquid dispersion device correspond to each other in the vertical direction. The spraying directions of the spray head of the first liquid dispersion device and the spray head of the second liquid dispersion device are opposite to each other.

10. A carbon capture system, characterized in that, include: Absorption tower, which is used to capture carbon dioxide using lean liquor; A regeneration tower, used to desorb carbon dioxide from rich liquid; as well as The heat exchange component according to any one of claims 1 to 9.

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