Device and method for forming carbon dioxide hydrate through continuous layer stripping method

Abstract

The invention relates to a device and a method for forming carbon dioxide hydrate by a continuous layer stripping method, and relates to the technical field of carbon capture. According to the device, the part under the roller is immersed in water, and the roller continuously rotates to continuously dip the water below the roller on the peripheral surface of the roller, so that a water film is formed, the gas / liquid contact area is increased, and the dissolving process of carbon dioxide in the flue waste gas into the water is accelerated; and a scraper is fixedly mounted on the side surface of the roller and can hang the solid hydrate on the peripheral surface of the roller into the material collecting box, and at the moment, the peripheral surface of the roller is exposed again to be used for adhering a water film and continuously generating the solid hydrate, so that efficient capture and separation of the carbon dioxide in the flue waste gas are realized.

Description

Technical Field

[0001] The present application relates to the technical field of carbon capture, and in particular, to an apparatus and method for forming carbon dioxide hydrate by a continuous delamination method. Background Art

[0002] At present, in a large number of basic researches carried out on the hydrate-based carbon capture technology, pure water or a solution is usually used as the base medium for the hydrate formation reaction. Mechanical enhancement and chemical-physical enhancement are used to enhance the dissolution ability of carbon dioxide in the liquid phase system, and combined with certain low-temperature and high-pressure environmental conditions, carbon dioxide is converted into hydrate and confined in the solid hydrate.

[0003] In the existing hydrate-based carbon capture technology, whether forming hydrate in pure water or a solution, or forming hydrate in a porous material, essentially, physical methods (such as stirring, spraying, bubbling, etc.) are used to disturb the liquid phase to increase the gas / liquid contact area, or to make pure water or a solution stably exist in the internal structure of the porous material to obtain a large gas / liquid contact area. After increasing the gas / liquid contact area by physical disturbance methods such as stirring, spraying, and bubbling, surfactants are usually required to increase the dissolution and transport ability of carbon dioxide in the liquid phase. Most surfactants are chemical synthetic materials, which will undoubtedly increase the economic cost and the risk of environmental pollution during use. When using a porous material, for a certain material, its saturated water content is usually fixed. Therefore, in a certain formation reaction process, the ratio between the usage amount of pure water or a solution and the usage amount of the porous material usually remains fixed, that is, during the whole reaction process, the gas / liquid contact area in the porous material basically remains constant. This means that after the type of material used is fixed, due to the fixed porosity inside it and the fixed saturated water content value. Therefore, after the initial water content of the material before the reaction starts is fixed, the amount of pure water or solution contained in the material remains fixed during the whole reaction. After the hydrate formation reaction ends, the solid hydrate structure will adhere and be stored inside the porous material, and it is impossible to separate the hydrate from the porous material, thus unable to maintain the continuity of the formation reaction process.

[0004] In summary, in the traditional hydrate formation method, solid hydrates are usually generated in a liquid aqueous solution phase by means of low temperature and high pressure. However, all traditional formation methods face the same similar problem: the hydrate formation reaction in the liquid phase mainly occurs at the gas / liquid interface. Once the solid hydrate structure is formed, it will hinder the transmission process of gas at the interface into the solution, resulting in a decrease in the formation reaction efficiency, a low final conversion rate of the liquid aqueous solution, and thus a reduction in the use efficiency of the liquid aqueous solution. Summary of the Invention

[0005] The purpose of this application is to provide a device and method for forming carbon dioxide hydrate by a continuous delamination method, which can increase the gas / liquid contact area and improve the formation reaction efficiency of solid hydrate (carbon dioxide hydrate).

[0006] To achieve the above purpose, in a first aspect, the present invention provides a device for forming carbon dioxide hydrate by a continuous delamination method. The device includes a reactor, an air inlet joint, a roller, a drive shaft, a water storage tank, a water injection pipeline, a scraper, an aggregate channel, an aggregate box, and a temperature control vest;

[0007] The roller is horizontally arranged inside the reactor. The drive shaft is connected to the roller, and the drive shaft extends out of the reactor and is connected to a drive component. The drive shaft is used to drive the roller to rotate. The water storage tank is arranged at the bottom of the roller, and at least part of the roller extends into the inside of the water storage tank. One end of the water injection pipeline extends out of the reactor and is communicated with a water injection component, and the other end of the water injection pipeline is used to inject water into the water storage tank. When the roller rotates, the water in the water storage tank can be dipped and wrapped on the outer peripheral surface of the roller. The air inlet joint is arranged on the side wall of the reactor, and the air inlet joint is used to inject flue gas containing carbon dioxide into the reactor. Carbon dioxide in the flue gas reacts with the water on the outer peripheral surface of the roller to generate solid hydrate;

[0008] The scraper is arranged on one side of the roller and has a gap with the outer peripheral surface of the roller. The aggregate channel is arranged below the scraper and extends out of the reactor. The aggregate box is communicated below the aggregate channel. The scraper is used to scrape off the solid hydrate generated on the outer peripheral surface of the roller and concentrate it in the aggregate box through the aggregate channel. The temperature control vest is arranged outside the aggregate box, and the temperature control vest is used to reduce the temperature of the aggregate box and the solid hydrate in the aggregate box, so that the solid hydrate maintains a self-protected state.

[0009] In an optional embodiment, the drive shaft is rotatably and sealingly connected to the side wall of the reactor.

[0010] In an optional embodiment, the device further includes a temperature-controlled water tank device. The drive shaft is connected to the temperature-controlled water tank device outside the reactor, and the temperature-controlled water tank device is used to inject a circulating temperature-controlled medium into the roller to adjust the temperature of the outer surface of the roller to a predetermined temperature value, and the predetermined temperature value is above zero.

[0011] In an optional embodiment, the device further includes an injection pump, an injection pipeline, and a water container;

[0012] The injection pump, the injection pipeline, the water container, and the water injection pipeline are sequentially communicated, and valves are installed on both the injection pipeline and the water injection pipeline.

[0013] In an optional embodiment, the device further includes a ventilation pipeline. One end of the ventilation pipeline is communicated to the water container, the other end of the ventilation pipeline is communicated to the reactor, and a valve is installed on the ventilation pipeline.

[0014] In an alternative embodiment, a gate valve is further provided on the aggregate channel, and starting the gate valve can cut off the pressure connection between the aggregate tank and the reactor.

[0015] In an alternative embodiment, a pressure relief valve is provided on the aggregate tank, and the aggregate tank is connected to the aggregate channel through a fixed clamp.

[0016] In a second aspect, the present invention provides a method for forming carbon dioxide hydrate by a continuous delamination method. The method uses the device of the foregoing embodiment, and the method includes:

[0017] S1: Inject flue gas into the reactor through the air inlet joint to raise the pressure in the reactor to a preset pressure value;

[0018] S2: Start the roller and keep it rotating at a constant speed;

[0019] S3: Inject water into the water storage tank in the reactor through the water injection pipeline;

[0020] S4: Keep the temperature of the aggregate tank below zero through the temperature control vest to freeze the scraped solid hydrate.

[0021] In an alternative embodiment, before the device needs to stop working, the method further includes:

[0022] S5: Reduce the rotation speed of the roller, thereby reducing the formation rate of solid hydrate on its outer surface, and cut off the pressure connection between the aggregate tank and the reactor.

[0023] In an alternative embodiment, after S5, the method further includes:

[0024] S6: Unload the gas pressure in the aggregate tank to atmospheric pressure;

[0025] S7: Separate the aggregate tank from the aggregate channel, and then take out and store the frozen solid hydrate from the aggregate tank in a cold storage.

[0026] Through the above technical solution, the device immerses a part directly below the roller in water. The roller continuously rotates to continuously dip the water below onto the outer peripheral surface of the roller to form a water film, improving the gas / liquid contact area and accelerating the dissolution process of carbon dioxide in the flue gas into the water; a scraper is fixedly installed on the side of the roller, and the scraper can scrape the solid hydrate on the outer peripheral surface of the roller into the aggregate tank. At this time, the outer peripheral surface of the roller is exposed again for attaching the water film and continuing to generate solid hydrate, realizing the efficient capture and separation of carbon dioxide in the flue gas.

[0027] Other features and advantages of the present application will be described in detail in the subsequent specific embodiment section. Brief Description of the Drawings

[0028] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a schematic structural diagram of an apparatus for forming carbon dioxide hydrate by the continuous delamination method provided by an embodiment of the present application.

[0030] Icon: 1 - reactor; 2 - air inlet joint; 3 - roller; 4 - drive shaft; 5 - water storage tank; 6 - water injection pipeline; 7 - scraper; 8 - aggregate channel; 9 - aggregate box; 10 - temperature control vest; 11 - injection pump; 12 - injection pipeline; 13 - ventilation pipeline; 14 - water container; 15 - fixed clamp; 16 - pressure relief valve; 17 - gate valve. Specific embodiments

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0032] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of this application is normally placed. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0034] Please refer to Figure 1, this embodiment provides a device for forming carbon dioxide hydrate by a continuous delamination method (hereinafter referred to as: device). The device includes a reactor 1, an air inlet joint 2, a roller 3, a drive shaft 4, a water sump 5, a water injection pipe 6, a scraper 7, an aggregate channel 8, an aggregate box 9, a temperature control vest 10, an injection pump 11, an injection pipe 12, a ventilation pipe 13, a water container 14 and a temperature control water tank device.

[0035] The roller 3 can be made of stainless steel. The roller 3 is horizontally arranged inside the reactor 1. The drive shaft 4 is connected to the roller 3. The drive shaft 4 extends out of the reactor 1 and is connected to a driving component. The drive shaft 4 is rotatably and sealingly connected to the side wall of the reactor 1. The drive shaft 4 is used to drive the roller 3 to rotate; the drive shaft 4 is connected to the temperature control water tank device outside the reactor 1. The temperature control water tank device is used to inject a circulating temperature control medium into the roller 3 to adjust the temperature of the outer surface of the roller 3 to a predetermined temperature value, and the predetermined temperature value is above zero degrees.

[0036] The water sump 5 is arranged at the bottom of the roller 3. At least part of the roller 3 extends into the inside of the water sump 5. That is to say, at least part of the roller 3 is immersed in the water of the water sump 5 during operation. With the continuous rotation of the roller 3, a thin water film will cover the outer peripheral surface of the roller 3, greatly increasing the contact area between carbon dioxide and water. Therefore, the solid hydrate formation reaction process will quickly proceed on the water film of the roller 3. With the continuous generation of solid hydrate, carbon dioxide in the flue gas is efficiently captured and separated. Moreover, the use of promoters such as surfactants can be avoided, reducing the economic cost and the risk of environmental pollution. The water consumption in the reaction no longer depends on the internal pore volume of the porous material, thus greatly improving the ability to treat carbon dioxide in flue gas.

[0037] Specifically, one end of the water injection pipe 6 extends out of the reactor 1 and is connected to a water injection component. The injection pump 11, the injection pipe 12, the water container 14 and the water injection pipe 6 are connected in sequence. One end of the ventilation pipe 13 is connected to the water container 14, and the other end of the ventilation pipe 13 is connected to the reactor 1. Valves are installed on the injection pipe 12, the water injection pipe 6 and the ventilation pipe 13. The other end of the water injection pipe 6 is used to inject water into the water sump 5; the rotation of the roller 3 can dip the water in the water sump 5 on the outer peripheral surface of the roller 3.

[0038] The air inlet joint 2 is arranged on the side wall of the reactor 1. The air inlet joint 2 is used to inject flue gas containing carbon dioxide into the reactor 1; carbon dioxide in the flue gas reacts with the water on the outer peripheral surface of the roller 3 to form solid hydrate.

[0039] The scraper 7 is arranged on one side of the roller 3 and has a gap with the outer peripheral surface of the roller 3. The aggregate channel 8 is arranged below the scraper 7 and extends out of the reactor 1. The aggregate box 9 is communicated below the aggregate channel 8. The scraper 7 is used to scrape off the solid hydrate generated on the outer peripheral surface of the roller 3 and concentrate it in the aggregate box 9 through the aggregate channel 8. An observation window can also be arranged on the aggregate box 9. The temperature control vest 10 is arranged outside the aggregate box 9. The temperature control vest 10 is used to reduce the temperature of the aggregate box 9 and the solid hydrate in the aggregate box 9, so that the solid hydrate maintains a self-protected state.

[0040] This embodiment also provides a method for forming carbon dioxide hydrate by continuous delamination method (hereinafter referred to as: method). The method uses the above device, and the method includes the following steps:

[0041] S1: Inject flue gas into the reactor 1 through the air inlet joint 2 to raise the pressure in the reactor 1 to a preset pressure value. Among them, the preset pressure value can be: 15 MPa to 20 MPa to adapt to different types of flue gas with a carbon dioxide volume concentration of 5% to 25%.

[0042] S2: Start the roller 3 and keep rotating at a constant speed.

[0043] Among them, the roller 3 is connected to the drive shaft 4 through a sealed rotary joint structure. The drive shaft 4 is connected to the temperature control water tank device outside the reactor 1. The temperature control water tank device is used to inject a circulating temperature control medium into the roller 3 to regulate the temperature of the outer surface of the roller 3 to a predetermined temperature value, and the predetermined temperature value is above zero to prevent water from freezing on the surface of the roller 3 and not generating hydrate.

[0044] S3: Use an injection pump 11 (manual or automatic) to inject water into the water container 14, and open the ventilation pipe 13 between the water container 14 and the reactor 1 to make the air pressure in the water container 14 and the reactor 1 equal, so that the water in the water container 14 can flow into the water storage tank 5 in the reactor 1 through the water injection pipe 6, and the liquid level height in the water storage tank 5 is controlled by manually adjusting the opening degree of the valve on the water injection pipe 6 in the reactor 1, and then the thickness of the water film wrapped on the roller 3 can be adjusted.

[0045] After water is injected into the water storage tank 5, with the continuous rotation of the roller 3, solid hydrate begins to form on the outer peripheral surface of the roller 3. As the formed hydrate layer gradually thickens, the scraper 7 located below the roller 3 will scrape off the solid hydrate accumulated to a preset thickness from the outer peripheral surface of the roller 3 during the rolling process of the roller 3. The scraped solid hydrate will finally fall into the aggregate box 9 under the action of gravity through the aggregate channel 8.

[0046] S4: Make the temperature of the aggregate box 9 below zero through the temperature control vest 10 to freeze the scraped solid hydrate.

[0047] Since the temperature of the aggregate box 9 is in a frozen state below zero degrees Celsius (such as -10°C), once the solid hydrate scraped off from the roller 3 enters the aggregate box 9, it will be quickly frozen and enter the "self-protection" state, that is, the solid hydrate prepared under normal pressure conditions can also maintain stability for a long time without decomposition.

[0048] S5: Reduce the rotation speed of the roller 3, thereby reducing the formation rate of the solid hydrate on its outer surface. Then, start the gate valve 17 on the aggregate channel 8 to cut off the pressure connection between the aggregate box 9 and the reactor 1.

[0049] S6: Open the pressure relief valve 16 on the aggregate box 9 to unload the gas pressure in the aggregate box 9 to normal pressure. Since the temperature of the aggregate box 9 has been regulated to a frozen state below zero degrees Celsius (such as -10°C) by the temperature control vest 10 before, even when the pressure is unloaded to normal pressure, the solid hydrate contained inside the aggregate box 9 can still maintain stability under the "self-protection" effect.

[0050] S7: Open the fixed clamp 15 on the upper part of the aggregate box 9 to separate the aggregate box 9 from the aggregate channel 8. Then, take out and store the frozen solid hydrate from the aggregate box 9 in the cold storage for the next steps of collection, storage, transportation, etc.

[0051] The technical principle of the device and method for forming carbon dioxide hydrate by the continuous stripping method provided in this embodiment: The solid hydrate formation reaction process mainly occurs at the gas / liquid interface. Therefore, increasing the gas / liquid contact area is the key link to improving the formation reaction efficiency. In addition, once the solid hydrate is formed at the gas / liquid contact surface, the formed solid hydrate will hinder the continuous dissolution of the gas in the liquid phase, thereby hindering the continuous progress of the formation reaction. Therefore, the device and method proposed in this embodiment focus on the above two key factors restricting the solid hydrate formation reaction rate, starting from effectively increasing the gas / liquid contact area and quickly cleaning the formed solid hydrate, and comprehensively solving the technical problems restricting the solid hydrate formation reaction rate, and improving the reaction efficiency of treating carbon dioxide in flue gas by the hydrate method.

[0052] The beneficial effects of the device and method for forming carbon dioxide hydrate by the continuous stripping method provided in this embodiment include:

[0053] 1. With the continuous rotation process of the roller 3, the water immersed in its lower end is continuously dipped and coated on the outer peripheral surface of the roller 3, and thus a water film can be formed on the outer peripheral surface of the roller 3, increasing the contact area between the gas and the liquid. In addition, the thickness of the water film coated on its outer peripheral surface can be regulated by adjusting the rotation speed of the roller 3, thereby regulating the rate of the solid hydrate formation reaction and the final water conversion rate.

[0054] 2. Install a scraper 7 fixed to the lower side of the roller 3. The continuously rotating roller 3 can scrape off the generated solid hydrate from the roller 3. After being scraped off, the solid hydrate will fall into the aggregate bin 9 at the lower part of the reactor 1. By using the gate valve 17 to cut off the pressure environment between the aggregate bin 9 and the reactor 1, the aggregate bin 9 filled with solid hydrate at the lower part can be quickly replaced. During the replacement process of the aggregate bin 9, the solid hydrate generation reaction process inside the reactor 1 can always continue, ultimately ensuring that the reaction process of treating carbon dioxide in flue gas by the hydrate method can continuously proceed without interruption, improving the treatment efficiency.

[0055] 3. The reactor 1 has a strong ability to continuously treat carbon dioxide in flue gas waste. Therefore, the reactor 1 has good adaptability and flexibility during actual use. It can be used in series or parallel without limit, and the high-pressure tolerance value of the reactor 1 can be gradually increased. For example, the pressure tolerance value of the starting reactor 1 can be designed to be 5 MPa, and the pressure tolerance value of the last reactor 1 can be increased to 50 MPa. By making full use of the flexibility of the reactor 1, the concentration of carbon dioxide in the treated flue gas waste can be reduced as much as possible. At the same time, by using the method of multiple sets in series and gradually increasing the working pressure, the operating cost can be significantly reduced.

[0056] 4. The thickness of the water film on the outer periphery of the roller 3 can be adjusted by adjusting the rotation speed of the roller 3, improving the contact efficiency between carbon dioxide and water, reducing the dependence of the solid hydrate generation reaction on chemical promoters, reducing the risk of environmental pollution caused by the method of treating carbon dioxide with hydrates, and improving the economy and environmental protection.

[0057] It should be noted that, without conflict, the features in the embodiments of this application can be combined with each other.

[0058] The above are only the preferred embodiments of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. An apparatus for forming carbon dioxide hydrate by a continuous delamination method, characterized in that, The device includes a reactor (1), an air inlet joint (2), a roller (3), a drive shaft (4), a water storage tank (5), a water injection pipeline (6), a scraper (7), an aggregate channel (8), an aggregate bin (9), and a temperature control vest (10); The roller (3) is horizontally arranged inside the reactor (1), the drive shaft (4) is connected to the roller (3), the drive shaft (4) extends out of the reactor (1) and is connected to a driving component, and the drive shaft (4) is used to drive the roller (3) to rotate; the water storage tank (5) is arranged at the bottom of the roller (3), at least part of the roller (3) extends into the water storage tank (5), one end of the water injection pipeline (6) extends out of the reactor (1) and is communicated with a water injection component, and the other end of the water injection pipeline (6) is used to inject water into the water storage tank (5); when the roller (3) rotates, the water in the water storage tank (5) can be dipped and wrapped on the outer peripheral surface of the roller (3); the air inlet joint (2) is arranged on the side wall of the reactor (1), and the air inlet joint (2) is used to inject flue gas containing carbon dioxide into the reactor (1); carbon dioxide in the flue gas reacts with the water on the outer peripheral surface of the roller (3) to generate solid hydrate; The scraper (7) is arranged on one side of the roller (3) and has a gap with the outer peripheral surface of the roller (3), the aggregate channel (8) is arranged below the scraper (7) and extends out of the reactor (1), the aggregate bin (9) is communicated below the aggregate channel (8), and the scraper (7) is used to scrape off the solid hydrate generated on the outer peripheral surface of the roller (3) and concentrate it in the aggregate bin (9) through the aggregate channel (8); the temperature control vest (10) is arranged outside the aggregate bin (9), and the temperature control vest (10) is used to reduce the temperature of the aggregate bin (9) and the solid hydrate in the aggregate bin (9) so that the solid hydrate maintains a self-protected state.

2. The apparatus for forming carbon dioxide hydrate by the continuous delamination method according to claim 1, characterized in that, The drive shaft (4) is rotatably and sealingly connected to the side wall of the reactor (1).

3. The apparatus for forming carbon dioxide hydrate by the continuous delamination method according to claim 1, wherein, The device further includes a temperature control water tank device, the drive shaft (4) is connected to the temperature control water tank device outside the reactor (1), and the temperature control water tank device is used to inject a circulating temperature control medium into the roller (3) to adjust the temperature of the outer surface of the roller (3) to a predetermined temperature value, and the predetermined temperature value is above zero degrees.

4. The apparatus for forming carbon dioxide hydrate by the continuous delamination method according to claim 1, wherein, The device further includes an injection pump (11), an injection pipeline (12), and a water container (14); The injection pump (11), the injection pipeline (12), the water container (14), and the water injection pipeline (6) are connected in sequence, and valves are installed on both the injection pipeline (12) and the water injection pipeline (6).

5. The apparatus for forming carbon dioxide hydrate by the continuous delamination method according to claim 4, wherein, The device further includes a ventilation pipeline (13), one end of the ventilation pipeline (13) is communicated with the water container (14), the other end of the ventilation pipeline (13) is communicated with the reactor (1), and a valve is installed on the ventilation pipeline (13).

6. The apparatus for forming carbon dioxide hydrate by the continuous delamination method according to claim 1, wherein A gate valve (17) is further provided on the aggregate channel (8). Starting the gate valve (17) can cut off the pressure communication between the aggregate tank (9) and the reactor (1).

7. The apparatus for forming carbon dioxide hydrate by the continuous delamination method according to claim 1, characterized in that, A pressure relief valve (16) is provided on the aggregate tank (9), and the aggregate tank (9) is connected to the aggregate channel (8) through a fixed clamp (15).

8. A method for forming carbon dioxide hydrate by a continuous delamination method, characterized in that, The method uses the device described in claim 1, and the method includes: S1: Inject flue gas into the reactor (1) through the air inlet joint (2) to raise the pressure in the reactor (1) to a preset pressure value; S2: Start the roller (3) and rotate it at a constant speed; S3: Inject water into the water storage tank (5) in the reactor (1) through the water injection pipe (6); S4: Keep the temperature of the aggregate tank (9) below zero through the temperature control vest (10) to freeze the scraped solid hydrate.

9. The method for forming carbon dioxide hydrate by the continuous delamination method according to claim 8, wherein, Before the device is required to stop working, the method further includes: S5: Reduce the rotation speed of the roller (3), thereby reducing the formation rate of the solid hydrate on its outer surface, and cut off the pressure communication between the aggregate tank (9) and the reactor (1).

10. The method for forming carbon dioxide hydrate by the continuous delamination method according to claim 9, wherein, After S5, the method further includes: S6: Unload the gas pressure in the aggregate tank (9) to atmospheric pressure; S7: Separate the aggregate tank (9) from the aggregate channel (8), and then take out and store the frozen solid hydrate from the aggregate tank (9) in a cold storage.

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