Carbon dioxide recovery system

Abstract

This application provides a carbon dioxide recovery system, relating to the field of gas treatment technology. The system includes a carbon dioxide recovery subsystem, comprising a tank, a carbon dioxide pipeline, and inlet / outlet pipelines. The tank contains a solvent for dissolving carbon dioxide, and the carbon dioxide pipeline is connected to the tank via the inlet / outlet pipelines. Using the technical solution provided in this application can improve the safety of carbon dioxide emissions.

Description

Technical Field

[0001] This application relates to the field of gas treatment technology, and in particular to a carbon dioxide recovery system. Background Technology

[0002] Carbon capture, utilization and storage (CCUS) is a technology that promises to enable large-scale, low-carbon utilization of fossil fuels.

[0003] In related technologies, supercritical carbon dioxide pipelines are prone to accumulating carbon dioxide gas. When too much carbon dioxide accumulates, it can only be directly discharged into the atmosphere, which obviously affects the safety of carbon dioxide gas emissions. Summary of the Invention

[0004] This application provides a carbon dioxide recovery system that can improve the safety of carbon dioxide emissions. The technical solution provided by this application is as follows:

[0005] According to one aspect of the embodiments of this application, a carbon dioxide recovery system is provided, the system comprising: a carbon dioxide recovery subsystem, wherein:

[0006] The carbon dioxide recovery subsystem includes a tank truck, a carbon dioxide pipeline, and inlet and outlet pipelines. The tank truck contains a solvent for dissolving the carbon dioxide, and the carbon dioxide pipeline is connected to the tank truck through the inlet and outlet pipelines.

[0007] In some embodiments, the solvent is liquid methanol.

[0008] In some embodiments, the temperature of the formaldehyde is less than or equal to -50°C.

[0009] In some embodiments, the ratio of the amount of solvent filled in the tanker truck to the volume of the tanker truck's tank is less than or equal to 70%.

[0010] In some embodiments, the upper pressure limit of the tank is greater than or equal to 2 MPa (Megapascal).

[0011] In some embodiments, the carbon dioxide recovery subsystem further includes a pressure gauge in the tanker's gas phase space.

[0012] In some embodiments, the tanker truck is equipped with a safety valve for releasing overpressure gas.

[0013] In some embodiments, when the carbon dioxide pipeline is vented, the tank truck is connected to the carbon dioxide recovery reserved interface and the safety valve outlet reserved interface via pipelines.

[0014] In some embodiments, the carbon dioxide recovery subsystem further includes a distributor located at the bottom of the tanker compartment of the tanker truck.

[0015] In some embodiments, the system further includes: a carbon dioxide venting subsystem; wherein:

[0016] The carbon dioxide venting subsystem includes a venting riser, a venting pipeline, and a venting valve installed on the venting pipeline.

[0017] The technical solutions provided in this application embodiment may have the following beneficial effects:

[0018] By using solvents filled in tank trucks to dissolve the carbon dioxide that needs to be recycled, the carbon dioxide emissions can be transported to factories that can recycle it due to the flexible location of the tank trucks. Compared with direct emission into the atmosphere, this improves the safety, economy and environmental friendliness of carbon dioxide emissions.

[0019] In addition, because tank trucks can move flexibly, they can adapt to different terrains and distribution patterns of oil and gas wells, thereby improving the flexibility of carbon dioxide recovery in oil and gas wells.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of a carbon dioxide recovery system provided in one embodiment of this application.

[0023] Legend:

[0024] 1: Carbon dioxide pipeline

[0025] 2: Vent riser

[0026] 3: Tanker truck

[0027] 4: Vent valve

[0028] 5-1~5-4: Ball valves

[0029] 6: Reserved flange interface

[0030] 6-1: Reserved interface for carbon dioxide recovery

[0031] 6-2: Safety valve outlet reserved interface

[0032] 7: Safety valve

[0033] 8: Pressure gauge Detailed Implementation

[0034] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of methods consistent with some aspects of this application as detailed in the appended claims.

[0035] Carbon capture, utilization, and storage (CCUS) refers to the capture and purification of carbon dioxide (CO2) emitted during production processes, followed by its reuse and storage in new production processes. As a technology that promises large-scale, low-carbon utilization of fossil fuels, CCUS is an important means of reducing CO2 emissions and achieving sustainable development in the future.

[0036] Venting of supercritical carbon dioxide pipelines is divided into planned venting and emergency venting. Emergency venting is typically carried out to prevent further escalation of an emergency within the station; this type of venting is short-lived, involves small release volumes, has a low probability of occurrence, and is uncontrollable. Planned venting, on the other hand, is conducted to ensure the safety of scheduled maintenance or repairs at the station or along the pipeline. This type of venting is longer-lasting, involves larger release volumes during pipeline maintenance, is highly periodic, and is controllable. However, directly releasing carbon dioxide into the atmosphere causes a rapid increase in atmospheric carbon dioxide levels, exacerbating the greenhouse effect. Furthermore, if safety measures for operators are inadequate, the released carbon dioxide may pose a risk of asphyxiation, making it unsafe.

[0037] Supercritical carbon dioxide long-distance pipeline transportation is a crucial link in the carbon capture, utilization, and storage (CFS) industry chain, connecting CFS capture, storage, and utilization. However, a carbon dioxide venting process occurs during transportation. Carbon dioxide is a major greenhouse gas, and excessive carbon dioxide emissions are considered a major cause of global warming and frequent extreme weather events. Therefore, it is necessary to recover the carbon dioxide released during this process.

[0038] Currently used carbon capture methods mainly include post-combustion capture (PCC), integrated gasification combined cycle (IGCC), and oxygen combustion.

[0039] (1) Main method of post-combustion capture: Capture is carried out after the combustion part of the process. Ethanolamine (C2H7NO, also known as 2-aminoethanol, 2-hydroxyethylamine, monoethanolamine) solvent at a concentration of 0.3 g / g is mainly used to absorb carbon dioxide. The main advantage is that it requires minimal modification, thus meaning minimal investment in modification funds. It is generally considered a more economical approach and is widely used in some regions. However, the regeneration of the ethanolamine solution requires a large amount of energy, and the evaporation of the solvent has some environmental impact.

[0040] (2) Main methods of pre-combustion capture: Conversely to post-combustion capture, pre-combustion capture first introduces oxygen or air to gasify raw materials such as coal and biomass fuels, which then enter the combustion section for reaction. Simultaneously, a certain amount of water vapor is introduced. The final products include carbon dioxide, carbon monoxide (CO), hydrogen (H2), nitrogen (N2), and sulfides. Because it requires gasifying fuels such as coal, both the initial investment and subsequent operating costs are relatively high. The advantages of this method are increased pressure, a higher proportion of carbon dioxide, and a smaller gas flow rate. It may also simultaneously produce energy gases such as hydrogen, thereby reducing investment costs.

[0041] (3) Oxygen combustion: The main method is to separate nitrogen and oxygen from the air and use pure oxygen to burn the fuel, thereby improving combustion efficiency (by about 17%-35%), increasing the purity of carbon dioxide, and reducing the production of byproducts such as carbon monoxide. The key to this technology is to purify the air to obtain a mixture with an oxygen concentration greater than 95%, which is then introduced into the combustion chamber.

[0042] The embodiments of this application can maximize the recovery of carbon dioxide gas released due to planned venting of supercritical carbon dioxide pipelines, reduce atmospheric pollution caused by planned venting, reduce greenhouse gas emissions, and reduce the risk of asphyxiation for operators during carbon dioxide emissions.

[0043] In addition, the technical solution provided in this application has a low cost of carbon dioxide recovery, and the recovered carbon dioxide can be reused, which reduces the cost of the entire carbon capture, utilization and storage industry chain.

[0044] The technical solution of this application will be described and illustrated below through several embodiments.

[0045] Please refer to Figure 1 The diagram illustrates a schematic of a carbon dioxide recovery system according to an embodiment of this application. The system may include: a carbon dioxide recovery subsystem, wherein:

[0046] The carbon dioxide recovery subsystem includes a tank truck (3), a carbon dioxide pipeline (1), and inlet and outlet pipelines. The tank truck (3) contains a solvent for dissolving carbon dioxide, and the carbon dioxide pipeline (1) is connected to the tank truck through the inlet and outlet pipelines.

[0047] In some embodiments, the solvent is liquid methanol (CH3OH). In some embodiments, the solvent is not limited to methanol, but may be other solvents suitable for dissolving carbon dioxide at low temperatures.

[0048] In some embodiments, methanol is the simplest saturated monohydric alcohol, with a molecular weight of 32.04 and a boiling point of 64.7°C. Methanol, also known as "wood alcohol" or "wood spirit," is a colorless, volatile liquid with an alcoholic odor. The minimum toxic dose for human oral ingestion is approximately 100 mg / kg body weight, and oral ingestion of 0.3–1 g / kg can be fatal. Methanol can be used to manufacture formaldehyde and pesticides, and is used as an extractant for organic matter and a denaturant for alcohols. Methanol can be produced by the reaction of carbon monoxide with hydrogen. Methanol can be obtained from coal, particularly from low-quality, high-sulfur coal and coke oven gas recovery; it can also be extracted from biomass (such as timber, organic waste, etc.).

[0049] In some embodiments, methanol production methods include, but are not limited to, the following:

[0050] 1. Industrially, methanol synthesis almost entirely employs the carbon monoxide pressurized catalytic hydrogenation method. The process includes gasification, synthesis and purification, methanol synthesis, and crude methanol distillation (the purification process of crude methanol includes distillation and chemical treatment. Chemical treatment mainly uses alkali to destroy impurities that are difficult to separate during distillation and adjusts the pH value; distillation mainly removes volatile components such as dimethyl ether, as well as non-volatile components such as ethanol, higher alcohols, and water; the purity after crude distillation can generally reach over 98%).

[0051] 2. Industrial methanol is purified by distillation to reduce its water content to below 0.01%. Then, it is treated with sodium hypoiodide to remove acetone. Pure methanol is obtained by further distillation.

[0052] 3. Using industrial methanol as raw material, remove water by atmospheric distillation, control the temperature at the top of the column at 64-65℃, and filter to remove insoluble matter.

[0053] 4. Methanol is separated from pyruvic acid obtained during the dry distillation of wood.

[0054] 5. Using industrial methanol as raw material, a high-purity methanol product is obtained through distillation, ultra-clean filtration, and ultra-clean packaging.

[0055] In some embodiments, the temperature of formaldehyde is less than or equal to -50°C.

[0056] In some embodiments, such as Figure 1 As shown, the solvent in the tank of the tanker truck (3) is low-temperature methanol.

[0057] In some embodiments, tank trucks are road vehicles used for storing and transporting chemically corrosive liquids. The tank of a tank truck comprises a steel-lined plastic tank, which includes a hexagonal lining, i.e., a three-in-one material combining steel, mesh, and plastic. It is made by welding a steel mesh (hexagonal lining) to the surface of a steel body, and then using a rotational molding process to organically combine the steel plate, steel mesh (hexagonal lining), and polyethylene into a single unit. The polyethylene is firmly bonded to the surface of the steel body.

[0058] The plastic lining of tank trucks (i.e., tanks) features seamless construction, leak-proof design, non-toxicity, aging resistance, impact resistance, corrosion resistance, long service life, and compliance with hygiene standards. It overcomes the shortcomings of all-plastic rotomolded tanks, such as poor rigidity, lack of pressure resistance, and poor temperature resistance. The product's inner lining is flat, smooth, and robust. Compared to traditional steel-lined plastic tanks, steel-lined rubber tanks, and steel-lined fiberglass tanks, it offers superior corrosion resistance, leak-proofness, non-peeling, wear resistance, pressure resistance, high temperature resistance, and longer service life. Its price is lower than traditional tanks of the same specifications, making it an ideal container for transporting corrosive liquids. It can be used for transporting chemical solutions below 90℃ by truck.

[0059] This application utilizes the physical property of low-temperature methanol's strong solubility for carbon dioxide gas. By using a low-temperature methanol liquid to recover supercritical carbon dioxide through a planned venting pipeline, environmental pollution can be reduced and energy efficiency improved. Furthermore, the venting process of high-pressure carbon dioxide creates a throttling and temperature drop effect. The low-temperature carbon dioxide entering the methanol after the venting valve partially offsets the heat released during the dissolution of carbon dioxide in the low-temperature methanol, resulting in only a small temperature rise in the methanol after carbon dioxide absorption. This makes the carbon dioxide absorption process of low-temperature methanol sustainable, without significant impact from temperature increases on the absorption process.

[0060] In some embodiments, the low-temperature methanol is in liquid form, with a temperature less than or equal to -50°C. That is, warm methanol is used as the absorbent solvent, utilizing methanol's excellent solubility for acidic gases (such as carbon dioxide) at low temperatures to absorb and remove acidic gases from the feed gas.

[0061] In some embodiments, the carbon dioxide recovery subsystem may also be referred to as a cryogenic methanol tanker system, such as... Figure 1 As shown, the cryogenic methanol tanker system may include: a tanker storage tank (i.e., a tank) capable of carrying cryogenic methanol and bearing pressure, a carbon dioxide venting and recovery inlet pipeline (included in a distributor at the bottom of the tank), a safety valve (7) and inlet and outlet pipelines, and a pressure gauge (8) for the gas phase space of the tanker.

[0062] In some embodiments, such as Figure 1 As shown, the ratio of the amount of solvent filled in the tank truck (3) to the volume of the tank of the tank truck (3) is less than or equal to 70%.

[0063] In some embodiments, the upper pressure limit of the tank is greater than or equal to 2 MPa.

[0064] In some embodiments, such as Figure 1 As shown, the carbon dioxide recovery subsystem also includes a pressure gauge (8) in the gas phase space of the tank truck.

[0065] In some embodiments, the tanker truck (3) is equipped with a safety valve (7) for releasing overpressure gas.

[0066] In some embodiments, such as Figure 1 As shown, when the carbon dioxide pipeline (1) is vented, the tank truck is connected to the carbon dioxide recovery reserved interface (6-1) and the safety valve outlet reserved interface (6-2) through the pipeline.

[0067] In some embodiments, such as Figure 1 As shown, when the carbon dioxide pipeline is scheduled to be vented, a tanker truck (3) loaded with low-temperature methanol (such as low-temperature methanol below -50°C) will be connected to the carbon dioxide recovery reserved interface (6-1) via a temporary pipeline and to the outlet reserved interface (6-2) of the safety valve.

[0068] In some embodiments, the carbon dioxide recovery subsystem further includes a distributor located at the bottom of the tanker compartment inside the tanker truck.

[0069] In some embodiments, a distributor is a widely used device in industrial production, whose main function is to uniformly distribute fluid (gas or liquid) into reactors, packed towers, or other related equipment. Distributors come in various working principles and structural forms, and can be selected and designed according to different process requirements and operating conditions. In this embodiment, the distributor is used to ensure that the low-temperature methanol in the tank is as uniform as possible, that is, the temperature of the low-temperature methanol and the carbon dioxide concentration are as uniform as possible throughout the tank.

[0070] The working principle of a distributor: The basic principle of a distributor is to enable the uniform distribution of fluid within the equipment through specific structural design. For example, in a packed tower, a distributor typically consists of distribution plates, nozzles, pipes, etc., which can uniformly disperse liquid or gas onto the packing layer, thereby improving the efficiency of mass and heat transfer. In a reactor, a distributor can make the reaction process more uniform and stable by increasing the mixing degree and uniformity of the fluid.

[0071] The functions of a distributor include the following aspects:

[0072] (1) Improve mass and heat transfer efficiency: By making the fluid uniformly distributed, the distributor can increase the contact area between the gas and liquid phases, thereby improving the efficiency of mass and heat transfer.

[0073] (2) Improved phase contact: The distributor enables better contact between the gas and liquid phases, which is crucial for improving reaction rate and conversion rate.

[0074] (3) Reduce wall flow and channel flow: In equipment such as packed towers, distributors can reduce the liquid flow towards the tower wall and the uneven flow within the packing layer, thereby improving the stability and efficiency of operation.

[0075] (4) Improve operational flexibility: A well-designed distributor can adapt to different operating conditions, such as changes in flow rate and pressure, thereby improving the operational flexibility and stability of the equipment.

[0076] In summary, distributors are indispensable equipment in industries such as chemical, petroleum, and pharmaceutical. They improve production efficiency and product quality by uniformly distributing fluids.

[0077] In some embodiments, the system further includes: a carbon dioxide venting subsystem; wherein: as Figure 1 As shown, the carbon dioxide venting subsystem includes a venting riser (2), a venting pipeline, and a venting valve (4) installed on the venting pipeline.

[0078] In some embodiments, such as Figure 1As shown, when the carbon dioxide pipeline is scheduled to be vented, the tanker truck loaded with cryogenic methanol is connected to the carbon dioxide recovery reserved interface (6-1) and the safety valve outlet reserved interface (6-2) through a temporary pipeline; then, the ball valve (5-2) is manually closed, and the ball valves (5-3), (5-4), and (5-1) are opened; then, the manual vent valve (4) is opened to a certain degree to release the pressure of the carbon dioxide pipeline (1). After depressurization, the carbon dioxide becomes cryogenic carbon dioxide gas and enters the cryogenic methanol tanker (i.e., the tanker truck (3) mentioned above). Inside the cryogenic methanol tanker, through the distributor at the bottom of the cryogenic methanol tanker, the carbon dioxide gas comes into full contact with the cryogenic methanol and is absorbed and dissolved by the cryogenic methanol. During the process of cryogenic methanol absorbing and dissolving carbon dioxide, a certain amount of heat of dissolution is released. Among them, (5-1), (5-2), (5-3), and (5-4) are ball valves in different positions.

[0079] In some embodiments, (5-1), (5-2), (5-3), and (5-4) are all manual ball valves. In some embodiments, a ball valve refers to a valve in which the opening and closing element (ball) is driven by the valve stem and rotates around the ball valve axis. Ball valves can be used for the regulation and control of fluids (such as carbon dioxide gas). Among them, the hard-seal V-type ball valve has a strong shearing force between its V-shaped ball core and the metal valve seat with hard alloy overlay, making it particularly suitable for media containing fibers, small solid particles, etc. Multi-port ball valves can not only flexibly control the merging, splitting, and switching of the flow direction of media in pipelines, but also close any channel while connecting the other two channels. This type of valve should generally be installed horizontally in pipelines. In some embodiments, ball valves have the advantages of wear resistance, good sealing performance, easy opening and closing, and long service life.

[0080] In some embodiments, (5-1), (5-2), (5-3), and (5-4) may also be ball valves with other actuation methods, such as pneumatic ball valves, electric ball valves, etc.

[0081] In some embodiments, as the amount of carbon dioxide absorbed by the cryogenic methanol increases, the methanol tends to become saturated. Unabsorbed carbon dioxide and other non-condensable gases that cannot be absorbed by the cryogenic methanol accumulate in the gas phase space of the tanker. This accumulation process causes an increase in the tanker's pressure. The overpressurized gas is released through a safety valve into the vent riser and ultimately into the atmosphere. The cryogenic methanol tanker, having absorbed carbon dioxide, returns to the carbon dioxide capture plant, where the absorbed carbon dioxide is released through depressurization and heating. The released carbon dioxide is then captured and utilized.

[0082] In summary, the technical solution provided in this application uses solvents filled in tank trucks to dissolve carbon dioxide that needs to be recycled. Because tank trucks are flexible in location, the emitted carbon dioxide can be transported to factories that can recycle and utilize it. Compared with direct emission into the atmosphere, this improves the safety, economy, and environmental friendliness of carbon dioxide emissions.

[0083] In addition, because tank trucks can move flexibly, they can adapt to different terrains and distribution patterns of oil and gas wells, thereby improving the flexibility of carbon dioxide recovery in oil and gas wells.

[0084] In some embodiments, based on such Figure 1 The carbon dioxide recovery system shown in this application provides a method for recovering carbon dioxide, which may include the following steps:

[0085] 1. Before the planned venting of the carbon dioxide pipeline, prepare several tank trucks (3) capable of carrying cryogenic methanol (such as methanol at -50℃). The tank trucks (3) have a certain pressure-bearing capacity, such as a maximum operating pressure of 2MPa. The cryogenic storage tanks of the tank trucks (3) are equipped with safety valves to release any overpressure gas that may accumulate.

[0086] 2. The low-temperature methanol is injected into the low-temperature storage tank of the tank truck (3) at a temperature of -50℃. The filling volume of the low-temperature methanol is about 70%, leaving space for the absorption of carbon dioxide. At this time, the low-temperature methanol has strong solubility.

[0087] 3. The gas to be vented from the carbon dioxide pipeline is throttled and depressurized via the vent valve (4) on the vent pipeline, and then introduced into the cryogenic tank of the tank truck (3) at a small flow rate to fully contact the cryogenic methanol. The outlet of the safety valve (7) on the tank of the tank truck (3) is connected to the reserved interface of the discharge pipeline on site. Due to the strong solubility of carbon dioxide gas in cryogenic methanol, the carbon dioxide gas will dissolve in the cryogenic methanol, realizing the recovery of carbon dioxide.

[0088] 4. Continuously introduce the gas from the supercritical carbon dioxide pipeline until the low-temperature methanol in the container reaches saturation, and the gas phase pressure in the tank truck (3) begins to rise rapidly. At this point, stop introducing the gas.

[0089] 5. After recovering carbon dioxide, the low-temperature methanol tanker is driven to the carbon dioxide capture plant, where the dissolved carbon dioxide is released by heating or depressurizing to facilitate its recapture and utilization.

[0090] 6. Repeat steps 3-5 above until all the gas planned to be vented from the supercritical carbon dioxide pipeline has been recovered. Throughout the process, the cryogenic methanol tanker remains sealed to prevent the spread of carbon dioxide emissions and protect the safety of operators.

[0091] This application utilizes the strong solubility of low-temperature methanol in carbon dioxide gas to achieve maximum recovery of planned carbon dioxide venting gas. Compared with related technologies, it overcomes the limitation of related technologies that cannot recover planned carbon dioxide venting gas. For example, for a DN300 (Nominal Diameter) supercritical carbon dioxide pipeline operating at 12MPa, venting is required for a pipeline with a valve spacing of 16km (Kilometre). Considering an average annual ground temperature of 10℃, when depressurizing from 12MPa to 2MPa for venting gas recovery, approximately 1000t (ton) of carbon dioxide can be recovered, representing a recovery rate of approximately 95%. Based on a capture cost of 300 yuan / ton of carbon dioxide, a single venting recovery can save approximately 300,000 yuan.

[0092] It should be understood that "multiple" as used in this article refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0093] The above description is merely an exemplary embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A carbon dioxide recovery system, characterized in that, The system includes: a carbon dioxide recovery subsystem, wherein: The carbon dioxide recovery subsystem includes a tank truck, a carbon dioxide pipeline, and inlet and outlet pipelines. The tank truck contains a solvent for dissolving the carbon dioxide, and the carbon dioxide pipeline is connected to the tank truck through the inlet and outlet pipelines.

2. The system according to claim 1, characterized in that, The solvent is liquid methanol.

3. The system according to claim 2, characterized in that, The temperature of the formaldehyde is less than or equal to -50°C.

4. The system according to claim 1, characterized in that, The ratio of the amount of solvent filled in the tanker truck to the volume of the tanker truck's tank is less than or equal to 70%.

5. The system according to claim 4, characterized in that, The pressure limit of the tank is greater than or equal to 2 MPa.

6. The system according to claim 1, characterized in that, The carbon dioxide recovery subsystem also includes a pressure gauge for the gas phase space of the tanker truck.

7. The system according to claim 1, characterized in that, The tanker truck is equipped with a safety valve, which is used to release overpressure gas.

8. The system according to claim 7, characterized in that, When the carbon dioxide pipeline is venting, the tank truck is connected to the carbon dioxide recovery reserved interface and the safety valve outlet reserved interface via pipelines.

9. The system according to claim 1, characterized in that, The carbon dioxide recovery subsystem also includes a distributor located at the bottom of the tanker compartment of the tanker truck.

10. The system according to claim 1, characterized in that, The system further includes: a carbon dioxide venting subsystem; wherein: The carbon dioxide venting subsystem includes a venting riser, a venting pipeline, and a venting valve installed on the venting pipeline.

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