A complex solubilization system for carbon dioxide in a liquid

Abstract

The utility model discloses a kind of composite solubilization systems of carbon dioxide in liquid, it is related to lithium extraction technical field.The system includes the gas-liquid mixing device, high-speed shearing pump and stripping reactor in turn communication;Gas-liquid mixing device includes semiconductor refrigeration assembly, device ontology and its inside gas-liquid mixing pipeline;Gas-liquid mixing pipeline is equipped with liquid inlet and first air inlet.Stripping reactor includes reactor ontology and its inside reaction cavity, reactor ontology from inside to outside includes reactor inner layer, thermoelectric chip and reactor outer layer, reactor outer layer and reactor inner layer are respectively connected the hot end and cold end of thermoelectric chip.The utility model realizes composite solubilization by cooling and shearing to liquid and carbon dioxide;Simultaneously, according to energy conversion effect, the high temperature outside stripping reactor is converted into energy that can be used by system, reduce the adverse effect of high temperature outside stripping reactor to internal reaction, further improve the solubility of carbon dioxide in liquid.

Description

Technical Field

[0001] This utility model relates to the field of lithium extraction technology, specifically to a composite solubilization system for carbon dioxide in liquid. Background Technology

[0002] In the back-extraction step of the lithium extraction process from salt lakes, carbon dioxide is introduced into the liquid to generate hydrogen ions and bicarbonate ions, which are then used to produce the target compound, lithium carbonate. However, carbon dioxide dissolves slowly in liquids, requiring a significant amount of time to reach dissolution equilibrium. Therefore, it is necessary to improve the solubility of carbon dioxide in the liquid.

[0003] To achieve the technical effect of increasing the solubility of carbon dioxide in liquids, existing technologies typically employ the following methods: (1) adding chemical additives to the liquid; however, since salt lake brine contains only Li, the chemical additives are not readily available in the liquid. + It also contains Na + K + Mg 2+ Ca 2+ Cl - SO4 2- HCO3 - (1) The presence of multiple ions, so the use of chemical additives may introduce more impurity ions; (2) Increase the contact area between carbon dioxide and liquid in the back-extraction reactor, but this will make the back-extraction reactor too large, increasing manufacturing and maintenance costs; (3) Use a high-speed shear pump to increase the solubility of carbon dioxide based on pressurization and cavitation effects, but this method is not efficient enough; (4) Reduce the inlet liquid temperature of the back-extraction reactor, but because the back-extraction reactor is very large, the lithium extraction plant in the salt lake is often located in a plateau or desert area with high solar radiation intensity and long sunshine hours, the heat absorbed by the back-extraction reactor and the ambient temperature have a great influence on the inlet liquid temperature; In addition, in order to accelerate the fusion of liquid and CO2 gas in the back-extraction reactor, a stirrer is also equipped for stirring, and the temperature will also rise due to frictional heat during the stirring process.

[0004] Therefore, there is an urgent need for a technical solution that can effectively improve the solubility of carbon dioxide in liquids, without introducing foreign ions, and can adapt to the high-temperature environment of the factory area. Utility Model Content

[0005] To address the problems existing in the prior art, the present invention aims to provide a composite solubilization system for carbon dioxide in liquids. This system improves the solubility of carbon dioxide by cooling and pressurizing the liquid using a semiconductor refrigeration component and a high-speed shear pump. Furthermore, the system is designed based on the temperature difference effect to convert the heat absorbed by the outer shell into electrical energy output, thereby maintaining a lower temperature inside the back-extraction reactor and further improving the solubility of carbon dioxide.

[0006] This utility model provides the following technical solution:

[0007] In a first aspect, this utility model provides a composite solubilization system for carbon dioxide in a liquid, which includes a gas-liquid mixing device, a high-speed shear pump and a back-extraction reactor connected in sequence.

[0008] The gas-liquid mixing device includes a device body, a semiconductor refrigeration component, and a gas-liquid mixing pipe disposed inside the device body. The cold end of the semiconductor refrigeration component is disposed inside the device body. One end of the gas-liquid mixing pipe is provided with a liquid inlet, and the other end is connected to the high-speed shear pump. The gas-liquid mixing pipe is provided with a first air inlet.

[0009] The back-extraction reactor includes a reactor body and a reaction chamber inside the reactor body, the reaction chamber being connected to the high-speed shear pump; the reactor body includes an outer reactor layer, an inner reactor layer, and a thermoelectric generator disposed between the outer reactor layer and the inner reactor layer, the outer reactor layer being connected to the hot end of the thermoelectric generator, and the inner reactor layer being connected to the cold end of the thermoelectric generator.

[0010] Furthermore, the liquid is selected from water, aqueous solution, and aqueous slurry.

[0011] Preferably, the gas-liquid mixing device, the high-speed shear pump, and the back-extraction reactor are connected by pipelines.

[0012] Preferably, the semiconductor cooling component uses a semiconductor cooling chip. The semiconductor cooling chips can be connected in series in multiple stages to improve overall cooling performance. The semiconductor cooling chip is a TEC1-127 series semiconductor cooling chip.

[0013] Preferably, it further includes a liquid inlet pipe, which is connected to the liquid inlet, and the liquid inlet pipe is equipped with a liquid inlet valve.

[0014] Furthermore, the thermoelectric generator is electrically connected to the semiconductor refrigeration component, and the electrical energy generated by the thermoelectric generator is used for refrigeration of the semiconductor refrigeration component.

[0015] Furthermore, the thermoelectric generator utilizes the Seebeck effect, which absorbs ambient temperature through the outer layer of the back-extraction reactor, creating a temperature difference between the outer and inner layers of the reactor. This temperature difference between the hot and cold ends of the thermoelectric generator causes electrons to diffuse from the hot end to the cold end, thus creating a potential difference and enabling the direct conversion of thermal energy into electrical energy.

[0016] Preferably, the outer layer of the reactor is made of SUS441 stainless steel (grade 022Cr18NbTi), and the inner layer of the reactor is made of pure titanium.

[0017] Preferably, the thermoelectric material of the thermoelectric generator is a Bi2Te3-based thermoelectric material with an operating temperature of 27℃-177℃.

[0018] Furthermore, the semiconductor refrigeration component utilizes the Peltier effect. When direct current passes through the two different semiconductor materials within the component, heat is absorbed and released at its two ends, respectively, creating a temperature difference. This converts electrical energy into heat energy, achieving a cooling effect at the cold end and a heating effect at the hot end. The cold end of the semiconductor refrigeration component is located inside the device body, which also contains a gas-liquid mixing pipe. Cooling the liquid flowing into this pipe increases the solubility of carbon dioxide in the liquid.

[0019] Furthermore, the hot end of the semiconductor cooling component can be used for heating, achieving high efficiency.

[0020] Furthermore, the thermoelectric generator is provided in multiple forms.

[0021] Furthermore, the gas-liquid mixing pipes are arranged in a curved pattern inside the device body.

[0022] Furthermore, a disperser is provided on the first air inlet, and the disperser has a plurality of micropores that allow gas to pass through, the pore size of which is 50-200 μm. By providing a disperser at the first air inlet, and the disperser having micropores with a pore size of 50-200 μm, carbon dioxide can form micron-sized bubbles, increasing the contact area with the liquid and improving its solubility in the liquid.

[0023] Furthermore, the first air inlet is provided with multiple inlets, and each air inlet is provided with the disperser.

[0024] Furthermore, the gas-liquid mixing device also includes several ultrasonic amplitude transformers, which are disposed inside the gas-liquid mixing pipe. Each ultrasonic amplitude transformer is connected to an ultrasonic generator, which drives the ultrasonic amplitude transformer. By installing ultrasonic amplitude transformers inside the gas-liquid mixing pipe, the ultrasonic waves generated by the ultrasonic generator act on the liquid flowing through the pipe, utilizing the cavitation effect to further refine the CO2 bubbles inside, thereby increasing the gas-liquid contact area and further increasing the solubility of CO2 in the liquid.

[0025] Furthermore, the back-extraction reactor is equipped with a second air inlet, and a stirring device is installed inside the back-extraction reactor. Carbon dioxide gas is introduced through the second air inlet to maintain an excessive supply of carbon dioxide inside the back-extraction reactor, and the stirring device increases the contact area between carbon dioxide and liquid.

[0026] Furthermore, the back-extraction reactor is also equipped with an exhaust port located above the second air inlet. This exhaust port is used to discharge excess carbon dioxide from the back-extraction reactor, thereby maintaining an atmospheric pressure inside the reactor. In addition, the exhaust port can also be used to observe whether carbon dioxide is being discharged stably and continuously, thus determining whether the reaction inside the back-extraction reactor is complete. When carbon dioxide is being discharged stably and continuously, it indicates that the reaction inside the back-extraction reactor has been completed.

[0027] Furthermore, the carbon dioxide composite solubilization system in liquid also includes a reflux pipe, one end of which is connected to the reaction chamber and the other end to the gas-liquid mixing pipe; the reflux pipe is equipped with a reflux valve and a reflux pump. The height of the liquid inlet of the reflux pipe is lower than the height of the second gas inlet in the back-extraction reactor. The carbon dioxide enriched liquid inside the back-extraction reactor is refluxed back to the gas-liquid mixing device through the reflux pipe, realizing the internal circulation of the carbon dioxide enriched liquid throughout the system, thereby further improving the solubility of carbon dioxide in the liquid.

[0028] Furthermore, the back-extraction reactor is also equipped with a drain outlet, from which the solution after the reaction is completed can be discharged.

[0029] Through the above design scheme, the beneficial effects of this utility model are:

[0030] This invention uses a semiconductor cooling component to cool the incoming liquid, and combines this with the pressurization and shearing action of a high-speed shear pump to shear carbon dioxide bubbles in the liquid into micron-sized agglomerates and bubbles, thereby improving the solubility of carbon dioxide. The structure of the back-extraction reactor is designed based on the temperature difference effect, converting the temperature difference between the inside and outside of the reactor into electrical energy. This prevents the external high temperature from affecting the temperature of the liquid inside the reactor, thus maintaining the solubility of CO2 in the liquid. Simultaneously, the generated electrical energy can be used in production or directly for cooling the working environment, comprehensively improving the back-extraction efficiency of lithium ions, reducing energy consumption, and making it environmentally friendly. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the composite solubilization system for carbon dioxide in liquid provided in Embodiment 1 of this utility model.

[0033] Figure 2 This is a top view schematic diagram of the back-extraction reactor provided in Embodiment 1 of this utility model.

[0034] Figure 3 This is a schematic diagram of the connection of the thermoelectric generator provided in Embodiment 1 of this utility model.

[0035] Explanation of the markings in the image:

[0036] 1-Liquid inlet pipe; 2-Gas-liquid mixing device; 210-Device body; 220-Semiconductor refrigeration component; 230-Gas-liquid mixing pipe; 231-First air inlet; 240-Ultrasonic amplitude transformer; 3-High-speed shear pump; 4-Back-extraction reactor; 410-Reactor body; 411-Outer layer of reactor; 412-Inner layer of reactor; 413-Thermoelectric generator; 420-Reaction chamber; 430-Second air inlet; 440-Exhaust port; 450-Liquid outlet pipe; 5-Reflux pipe; 6-Stirring device. Detailed Implementation

[0037] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0039] In the description of this utility model, it should be noted that the terms "first" and "second" are used for descriptive purposes only, to distinguish objects, such as substances, from one another, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. For example, without departing from the scope of the embodiments of this utility model, the first XX can also be referred to as the second XX, and similarly, the second XX can also be referred to as the first XX. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0040] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] Example 1

[0043] Please see Figure 1 The carbon dioxide composite solubilization system shown includes an inlet pipe 1, a gas-liquid mixing device 2, a high-speed shear pump 3, and a back-extraction reactor 4, which are connected in sequence through pipes.

[0044] It should be noted that the liquid in this embodiment is water.

[0045] The inlet pipe 1 is equipped with an inlet valve (not shown in the figure) that can control the inlet flow.

[0046] The gas-liquid mixing device 2 includes a device body 210, a semiconductor cooling component 220, and a gas-liquid mixing pipe 230 disposed inside the device body 210. One end of the gas-liquid mixing pipe 230 has a liquid inlet, which connects to a liquid inlet pipe 1. Liquid is injected into the gas-liquid mixing pipe 230 from the liquid inlet pipe 1 through the liquid inlet. The cold end of the semiconductor cooling component 220 is disposed inside the device body 210, cooling the interior of the device body 210 to form a cooling chamber. The gas-liquid mixing pipe 230 is arranged in a curved pattern within this cooling chamber, thereby extending the residence time of the liquid within the cooling chamber and improving the cooling effect. The gas-liquid mixing device 2 uses the semiconductor cooling component 220 to cool the liquid, maintaining a lower temperature before it enters the high-speed shear pump 3, thereby increasing the solubility of carbon dioxide in the liquid.

[0047] The gas-liquid mixing pipe 230 is equipped with an ultrasonic amplitude transformer 240 and a first air inlet 231 for injecting carbon dioxide into the liquid in the gas-liquid mixing pipe 230.

[0048] In this embodiment, the gas-liquid mixing pipe 230 is provided with four first air inlets 231, each of which is equipped with a disperser (not shown in the figure). The disperser has micropores that allow gas to pass through, and the pore size is 100 μm, so that carbon dioxide is injected into the liquid in the form of tiny bubbles. In other specific embodiments, there may be multiple first air inlets 231, and the pore size of the micropores is maintained between 50-200 μm. By adjusting the pore size of the micropores on the disperser, micron-sized bubbles can be obtained, so that the dissolution rate of carbon dioxide in the liquid reaches a more ideal state.

[0049] In this embodiment, two ultrasonic amplitude transformers 240 are provided, each connected to an ultrasonic generator (not shown in the figure). The ultrasonic waves generated by the generator are applied to the liquid flowing through the gas-liquid mixing pipe 230 via the ultrasonic amplitude transformers 240, thereby utilizing the cavitation effect to further refine the CO2 gas bubbles, increase the gas-liquid contact area, and further increase the solubility of CO2. In other specific embodiments, multiple ultrasonic amplitude transformers 240 may be provided.

[0050] The other end of the gas-liquid mixing pipe 230 is connected to the high-speed shear pump 3, which is used to shear carbon dioxide bubbles in the incoming liquid into micron-sized agglomerates and bubbles to improve the solubility of carbon dioxide.

[0051] The back-extraction reactor 4 includes a reactor body 410 and a reaction chamber 420 inside the reactor body 410, which is connected to the high-speed shear pump 3. Please refer to further details. Figure 2 The reactor body 410 shown includes an outer reactor layer 411, an inner reactor layer 412, and a thermoelectric generator 413 disposed between the outer reactor layer 411 and the inner reactor layer 412. The outer reactor layer 411 absorbs ambient heat (including sunlight and ambient radiant heat) and is connected to the hot end of the thermoelectric generator 413; the inner reactor layer 412 is connected to the cold end of the thermoelectric generator 413. When a temperature difference occurs between the outer reactor layer 411 and the inner reactor layer 412, the thermoelectric generator 413 can function, converting the heat from the outer reactor layer 411 into electrical energy, which can be used for cooling during production or directly for cooling the working environment, thus balancing the working temperature inside the back-extraction reactor 4. In this way, not only can the influence of high external temperatures on the working temperature inside the back-extraction reactor 4 be isolated, but the generated electrical energy can also be directly used for cooling.

[0052] In this embodiment, the outer layer 411 of the reactor is made of SUS411 stainless steel (grade 022Cr18NbTi), the inner layer 412 of the reactor is made of pure titanium, and the thermoelectric material of the thermoelectric generator 413 is bismuth telluride. Bismuth telluride exhibits high electrical conductivity and low thermal conductivity at room temperature, thereby improving the thermoelectric power generation effect.

[0053] In this embodiment, the semiconductor refrigeration component 220 uses a TEC1-12703 semiconductor refrigeration chip, and the thermoelectric generator 413 is electrically connected to the semiconductor refrigeration chip. This allows the temperature difference between the inner and outer layers of the reactor body 410 to be converted into electrical energy by the thermoelectric generator 413 for cooling the cold end of the semiconductor refrigeration chip. The greater the temperature difference between the inner and outer layers of the reactor body 410, the more electrical energy is generated by the thermoelectric generator 413, and the more significant the cooling effect of the semiconductor refrigeration chip on the liquid inside the gas-liquid circulation pipe 230. This results in a lower inlet temperature for the back-extraction reactor 4, thereby balancing the operating temperature inside the back-extraction reactor 4, reducing energy consumption, and promoting environmental friendliness. Further reference... Figure 3 In some embodiments, multiple thermoelectric generators 413 are provided, which can cover the large-volume back-extraction reactor 4. Multiple thermoelectric generators 413 are connected in parallel and / or series to output to the load, thereby balancing voltage and current, avoiding insufficient voltage caused by parallel connection alone and insufficient current caused by series connection alone, and improving the reliability of the device. It should be noted that when the temperature difference between the outer layer 411 and the inner layer 412 of the reactor is small, it indicates that the temperature of the external environment of the back-extraction reactor 4 is not high, and the impact on the reaction inside the reaction chamber 420 is not significant. At this time, the electrical energy generated by the thermoelectric generators 413 is less, enabling the semiconductor cooling component 220 to operate with low power consumption, continuously reducing the inlet temperature of the back-extraction reactor 4, thereby balancing the heat generated by stirring inside the back-extraction reactor 4.

[0054] The back-extraction reactor 4 is equipped with a second air inlet 430 at the top, an exhaust port 440 at the top, and a liquid outlet 450 at the bottom, and contains an internal stirring device 6. The second air inlet 430 allows carbon dioxide to be introduced, achieving an excess supply of carbon dioxide within the back-extraction reactor 4, and, combined with the stirring device 6, increases the contact area between the carbon dioxide and the liquid. The exhaust port 440 discharges excess gas, maintaining atmospheric pressure within the back-extraction reactor 4. The exhaust port 440 also serves to observe whether carbon dioxide is being discharged stably and continuously, thus determining whether the reaction within the back-extraction reactor 4 is complete. When carbon dioxide is being discharged stably and continuously, it indicates that the reaction is complete.

[0055] In this embodiment, the carbon dioxide composite solubilization system in liquid further includes a reflux pipe 5. One end of the reflux pipe 5 is connected to the lower part of the reaction chamber 420, and the other end is connected to the gas-liquid mixing pipe 230. The reflux pipe 5 is equipped with a reflux valve and a reflux pump (neither shown in the figure). The reflux pipe 5 allows the carbon dioxide enriched solution in the back-extraction reactor 4 to flow back to the gas-liquid mixing device 2, thereby forming an internal circulation of the carbon dioxide enriched solution throughout the system, further improving the solubility of carbon dioxide in liquid.

[0056] Specifically, the usage process of the carbon dioxide composite solubilization system in liquid in this embodiment is as follows:

[0057] When the system starts up, carbon dioxide is introduced through the first air inlet 231 and the second air inlet 430 to expel the air inside the system and to continuously introduce carbon dioxide for subsequent reactions. After the air inside the system is expelled, the liquid inlet valve and the ultrasonic generator are opened to power the semiconductor cooling component 220. The liquid inlet valve is opened, and the reflux valve is closed at this time. Water enters the gas-liquid mixing pipe 230 through the liquid inlet pipe 1, and its temperature decreases under the cooling effect of the semiconductor cooling component 220. At the same time, the ultrasonic generator is turned on to drive the ultrasonic amplitude transformer 240. Water mixes with micron-sized carbon dioxide bubbles formed by the disperser through the first air inlet 231 in the gas-liquid mixing pipe 230. Under the action of the ultrasonic amplitude transformer 240, the carbon dioxide bubbles are further refined, thereby increasing the solubility of carbon dioxide in water under the combined action of the disperser, the semiconductor cooling component 220 and the ultrasonic amplitude transformer 240, resulting in a first carbon dioxide-water mixture, which is then discharged from the gas-liquid mixing device 2. High-speed shear pump 3 is activated, and the first carbon dioxide-water mixture enters the pump through a pipe to further shear carbon dioxide bubbles, thereby increasing the solubility of carbon dioxide in water and obtaining a second carbon dioxide-water mixture. Stirring device 6 is activated, and the second carbon dioxide-water mixture enters the reaction chamber 420 through a pipe for back-extraction. Under the action of stirring device 6, it further mixes with the carbon dioxide injected into the reaction chamber 420 through the second air inlet 430, forming a carbon dioxide-enriched liquid. At this time, with a temperature difference between the inside and outside of the back-extraction reactor 4, the thermoelectric generator 413 generates electricity to power the semiconductor refrigeration component 220 for cooling, thus transforming the adverse effect of high external environmental temperature on the solubility of carbon dioxide in water into a favorable factor that improves its solubility. When the liquid level inside the reaction chamber 420 is higher than the liquid inlet of the return pipe 5 but lower than the second air inlet 430 and the exhaust port 440, the liquid inlet valve is closed, stopping the external water intake. Simultaneously, the reflux valve and reflux pump are opened, allowing the carbon dioxide enriched liquid to flow back into the gas-liquid mixing device 2 through the reflux pipe 5 as the inlet liquid. The subsequent steps are repeated to achieve the internal circulation of the carbon dioxide enriched liquid throughout the system, thereby continuously increasing the solubility of carbon dioxide within the system until carbon dioxide is stably and continuously discharged from the exhaust port 440. The reaction is complete, the carbon dioxide in the carbon dioxide enriched liquid reaches saturation, forming a carbon dioxide saturated liquid, which is discharged through the drain port 450, completing the operation of the entire system.

[0058] In this embodiment, the carbon dioxide composite solubilization system in liquid utilizes a semiconductor refrigeration component 220 to cool the liquid and improve carbon dioxide solubility. Furthermore, the high-speed shear pump 3 shears the carbon dioxide bubbles inside the liquid into micron-sized aggregates and bubbles, significantly increasing the contact area between the liquid and carbon dioxide, thus improving carbon dioxide solubility. Simultaneously, the high-speed shear pump 3 alters the fluid's energy form, converting its mechanical energy into pressure energy, thereby increasing internal pressure and further enhancing carbon dioxide solubility. In addition, by designing the reactor body 410 as a multi-layered structure, a thermoelectric generator 413 based on thermoelectric materials is installed between the outer layer 411 and the inner layer 412 of the reactor. The outer layer 411 and the inner layer 412 are connected to the hot and cold ends of the thermoelectric generator 413, respectively, isolating the external high temperature from affecting the operating temperature inside the back-extraction reactor 4. The generated electricity can be used for cooling by the semiconductor refrigeration component 220, further improving the solubility of carbon dioxide in the liquid. The electricity generated by the thermoelectric generator 413 can also be used to power other loads, thereby reducing energy consumption and achieving environmental friendliness. In addition, the hot end of the semiconductor cooling component 220 can be used to heat subsequent reactions, thereby improving efficiency.

[0059] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A composite solubilization system for carbon dioxide in a liquid, characterized in that, It includes a gas-liquid mixing device, a high-speed shear pump, and a back-extraction reactor connected in sequence; The gas-liquid mixing device includes a device body, a semiconductor refrigeration component, and a gas-liquid mixing pipe disposed inside the device body; the cold end of the semiconductor refrigeration component is disposed inside the device body; one end of the gas-liquid mixing pipe is provided with a liquid inlet, and the other end is connected to the high-speed shear pump; the gas-liquid mixing pipe is provided with a first air inlet. The back-extraction reactor includes a reactor body and a reaction chamber inside the reactor body, the reaction chamber being connected to the high-speed shear pump; the reactor body includes an outer reactor layer, an inner reactor layer, and a thermoelectric generator disposed between the outer reactor layer and the inner reactor layer; the outer reactor layer is connected to the hot end of the thermoelectric generator, and the inner reactor layer is connected to the cold end of the thermoelectric generator.

2. The composite solubilization system for carbon dioxide in liquid as described in claim 1, characterized in that, The thermoelectric generator is electrically connected to the semiconductor refrigeration component.

3. The composite solubilization system for carbon dioxide in liquid as described in claim 1, characterized in that, The thermoelectric generator is provided in multiple units.

4. The composite solubilization system for carbon dioxide in liquid as described in claim 1, characterized in that, The gas-liquid mixing pipes are arranged in a curved pattern inside the main body of the device.

5. The composite solubilization system for carbon dioxide in liquid as described in claim 1, characterized in that, The first air inlet is equipped with a disperser, which has a number of micropores that allow gas to pass through. The diameter of the micropores is between 50 and 200 μm.

6. The composite solubilization system for carbon dioxide in liquid as described in claim 5, characterized in that, The first air inlet is provided in multiple ways, and each of the first air inlets is provided with the disperser.

7. The composite solubilization system for carbon dioxide in liquid as described in claim 1, characterized in that, The gas-liquid mixing device also includes several ultrasonic amplitude transformers, which are disposed inside the gas-liquid mixing pipe.

8. The composite solubilization system for carbon dioxide in liquid as described in claim 1, characterized in that, The reactor body is provided with a second air inlet, and the reaction chamber is provided with a stirring device.

9. The composite solubilization system for carbon dioxide in liquid as described in claim 8, characterized in that, The top of the back-extraction reactor is also equipped with an exhaust port.

10. The composite solubilization system for carbon dioxide in liquid as described in any one of claims 1-9, characterized in that, It also includes a reflux pipe, one end of which is connected to the reaction chamber and the other end of which is connected to the gas-liquid mixing pipe; the reflux pipe is equipped with a reflux valve.

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