Offshore wind-solar integrated CCUS system

Abstract

The invention provides an offshore wind and light integrated CCUS system, the offshore wind and light integrated CCUS system comprises a mounting platform, an energy supply assembly, a carbon capture assembly and a sealing assembly, the energy supply assembly is arranged on the mounting platform, the energy supply assembly is used for providing power, the carbon capture assembly is arranged on the mounting platform, the carbon capture assembly is electrically connected with the energy supply assembly, and the sealing assembly is arranged on the mounting platform. The carbon capture assembly comprises a capture component and a conveying component, the capture component is used for capturing and treating carbon dioxide from ambient air, the conveying component is used for conveying the captured carbon dioxide, and the storage assembly is connected with the conveying component and used for injecting and storing the carbon dioxide in the seabed geological structure. According to the offshore wind-solar integrated CCUS system, through cooperative work of multiple systems, efficient capture, transportation and storage of carbon dioxide are achieved, meanwhile, offshore renewable energy sources are used for providing power for the whole system, and the environmental protection property and economical efficiency of the system are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of marine carbon capture and storage technology, specifically to a marine integrated wind and solar CCUS system. Background Technology

[0002] Carbon dioxide, as a major greenhouse gas, has led to severe climate change problems due to its massive emissions. Carbon dioxide capture, utilization, and storage (CCUS) technology is considered an effective means of emission reduction. However, existing onshore carbon capture and storage projects face numerous challenges.

[0003] Among related technologies, traditional carbon capture technology still has the following problems: on the operation side, it relies on power grid and fossil energy supply, resulting in high costs, difficulty in achieving net-zero emissions, and large facility footprint; on the storage side, it faces problems such as complex geological conditions and limited storage site selection. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] To this end, embodiments of the present invention propose an integrated marine wind and solar CCUS system. This integrated marine wind and solar CCUS system achieves efficient capture, transport and storage of carbon dioxide through the collaborative work of multiple systems, while utilizing marine renewable energy to power the entire system, significantly improving the system's environmental friendliness and economic efficiency.

[0006] The marine wind and solar integrated CCUS system according to an embodiment of the present invention includes: Installation platform; An energy supply component, which is located on the installation platform, is used to provide power; A carbon capture assembly is provided on the installation platform and electrically connected to the energy supply assembly. The carbon capture assembly includes a capture component and a conveying component. The capture component is used to capture and process carbon dioxide from ambient air, and the conveying component is used to convey the captured carbon dioxide. A storage assembly, connected to the delivery component, for injecting and storing carbon dioxide in seabed geological structures.

[0007] The marine wind-solar integrated CCUS system of this invention relies on marine renewable energy to achieve zero carbon emissions. It efficiently captures and stores carbon dioxide, significantly reducing the concentration of greenhouse gases in the atmosphere. Utilizing renewable energy lowers energy costs and reduces dependence on traditional fossil fuels. Low-energy design and efficient transportation technology reduce the system's operating costs.

[0008] In some embodiments, the energy supply component includes a power generation unit and an energy storage unit, wherein the energy storage unit is used to balance power fluctuations of the power generation unit and store excess electrical energy.

[0009] In some embodiments, the power generation unit includes at least one of a wind power generation unit and a solar power generation unit.

[0010] In some embodiments, the energy storage unit is a hydrogen-based energy storage device or a liquid air energy storage device.

[0011] In some embodiments, the trapping component includes an absorption unit and a desorption unit. The absorption unit uses a chemical adsorbent to react with carbon dioxide in the air to achieve trapping, and the desorption unit regenerates the chemical adsorbent enriched with carbon dioxide to release carbon dioxide gas.

[0012] In some embodiments, the chemical adsorbent is an amine solution, and the absorption unit has an adjustment inlet for introducing seawater to utilize the alkalinity of the seawater to enhance the absorption of carbon dioxide.

[0013] In some embodiments, the conveying component includes a compression liquefaction device and a conveying pipeline, the compression liquefaction device being connected to the trapping component for compressing the trapped carbon dioxide to a liquid or supercritical state; the conveying pipeline is used to convey the compressed carbon dioxide to the storage component.

[0014] In some embodiments, the storage assembly includes a connecting pipe and at least one subsea injection well, the connecting pipe connecting the delivery component and at least one subsea injection well for injecting carbon dioxide into the underground reservoir.

[0015] In some embodiments, a control valve is provided on the connecting pipe to prevent backflow of the sealed medium.

[0016] In some embodiments, the marine wind and solar integrated CCUS system of the present invention further includes a monitoring component, which includes a plurality of monitoring elements connected to at least one of the capture component and the storage component for real-time monitoring of the pressure, temperature and migration status of collected and / or stored carbon dioxide. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the connection of the marine wind and solar integrated CCUS system according to an embodiment of the present invention.

[0018] Figure label: 1. Energy supply components; 11. Power generation unit; 111. Wind power generation unit; 112. Solar power generation unit; 12. Energy storage unit. 2. Carbon capture assembly; 21. Capture component; 22. Conveying component. 3. Sealing components. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] like Figure 1 As shown, the marine wind and solar integrated CCUS system of this invention includes: an installation platform, an energy supply component 1, a carbon capture component 2, and a carbon storage component 3.

[0021] Energy supply component 1 is located on the installation platform and provides power. Carbon capture component 2 is located on the installation platform and is electrically connected to energy supply component 1. Carbon capture component 2 includes a capture element 21 and a conveying element 22. The capture element 21 is used to capture and process carbon dioxide from ambient air, and the conveying element 22 is used to convey the captured carbon dioxide. Storage component 3 is connected to the conveying element 22 for injecting and storing carbon dioxide in seabed geological structures.

[0022] Specifically, such as Figure 1 As shown, the mounting platform serves as the base of the entire system, used to secure and support other components. The energy supply component 1, carbon capture component 2, and carbon storage component 3 are all mounted on this platform. The energy supply component 1, located on the mounting platform, includes renewable energy equipment such as wind power generation devices and solar photovoltaic panels. The energy supply component 1 is electrically connected to the carbon capture component 2 via cable or wireless means, providing the necessary power.

[0023] The carbon capture assembly 2 includes a capture component 21 and a delivery component 22, mounted on an installation platform. The capture component 21 is responsible for capturing carbon dioxide from ambient air, typically using absorbent or membrane separation technology. The delivery component 22 is responsible for transporting the captured carbon dioxide to the storage assembly 3, and may include pumps and piping systems. The storage assembly 3 is connected to the delivery component 22 and is used to inject and store the captured carbon dioxide within a seabed geological structure. The storage assembly 3 may include injection wells and monitoring systems to ensure the safe storage of the carbon dioxide.

[0024] Understandably, by utilizing renewable energy sources such as offshore wind and solar power, energy supply component 1 can provide clean and stable power to the entire system, thereby reducing dependence on the external power grid. This not only reduces operating costs but also lowers carbon emissions. The carbon capture component 2 is designed to efficiently capture carbon dioxide from ambient air, reducing emissions. The integrated design of capture component 21 and delivery component 22 ensures continuous processing and delivery of carbon dioxide. Storage component 3 is located directly within the seabed geological structure, reducing the complexity and site selection constraints of onshore storage. Through seabed injection, geological conditions can be utilized more effectively, reducing storage costs.

[0025] In other words, the marine wind-solar integrated CCUS system of this invention relies on marine renewable energy to achieve zero carbon emissions. It efficiently captures and stores carbon dioxide, significantly reducing the concentration of greenhouse gases in the atmosphere. Utilizing renewable energy lowers energy costs and reduces dependence on traditional fossil fuels. Low-energy design and efficient transportation technology reduce the system's operating costs.

[0026] In some embodiments, the energy supply component 1 includes a power generation unit 11 and an energy storage unit 12, wherein the energy storage unit 12 is used to balance the power fluctuations of the power generation unit 11 and store excess electrical energy.

[0027] Understandably, power generation unit 11 can employ different types of power generation equipment (such as wind power generation, solar power generation, etc.) to convert wind or solar energy in the environment into electrical energy. The main function of energy storage unit 12 is to balance the power fluctuations of power generation unit 11, ensuring the system can operate continuously and stably. It can store excess electrical energy to provide power when the output of power generation unit 11 is insufficient (e.g., when wind speed is low or there is no sunlight at night). Energy storage unit 12 may include battery systems (such as lithium-ion batteries, lead-acid batteries, etc.), flywheels, pump storage systems, or other types of energy storage technologies.

[0028] In other words, the wind and solar power used by the power generation unit 11 are intermittent energy sources, and their output is affected by weather conditions, which may lead to power fluctuations. The energy storage unit 12 can absorb the excess electrical energy generated by the power generation unit 11 and release it when needed, thereby balancing power fluctuations.

[0029] Through the regulation function of the energy storage unit 12, the system can maintain a relatively stable power output, which is crucial for the continuous operation of the carbon capture module 2. The introduction of the energy storage unit 12 allows the system to utilize the electricity generated by the power generation unit 11 more effectively, reducing energy waste caused by power fluctuations. The use of the energy storage unit 12 reduces dependence on the external power grid, lowering the system's operating costs. Simultaneously, by improving the utilization efficiency of renewable energy, the system's environmental impact is further reduced. The introduction of the energy storage unit 12 increases the system's flexibility, enabling it to better adapt to different ocean and climate conditions. System reliability is improved because the normal operation of the carbon capture module 2 can be guaranteed even in situations where renewable energy supply is insufficient.

[0030] In some embodiments, the power generation unit 11 includes at least one of a wind power generation unit 111 and a solar power generation unit 112.

[0031] Understandably, by combining the wind power generation unit 111 and the solar power generation unit 112, the system can obtain electricity from different energy sources, increasing the diversity of energy supply. This diversity helps reduce dependence on a single energy source, thereby improving the system's robustness.

[0032] Wind and solar power have different output characteristics at different times and under different conditions. Combining the two can make energy output more stable. For example, at night or on cloudy days, the output of solar photovoltaic panels may decrease, while the wind power generation unit 111 may still be able to generate electricity.

[0033] Preferably, there are multiple wind power generation units 111 and multiple solar power generation units 112. That is, multiple wind power generation units 111 are arranged around the circumference of the installation platform according to the surrounding environment. The wind power generation units 111 include vertical axis wind turbines to adapt to the changing sea winds. The solar power generation units 112 include multiple solar panels. The solar panels can be installed on the installation platform or on a floating structure around the circumference of the installation platform to maximize the utilization of solar energy.

[0034] In some embodiments, the energy storage unit 12 is a hydrogen-based energy storage device or a liquid air energy storage device.

[0035] Understandably, hydrogen energy storage devices consist of an electrolyzer and a fuel cell. The electrolyzer uses excess electrical energy to split water into hydrogen and oxygen. The hydrogen is stored, and when energy is needed, it is converted back into electrical energy via the fuel cell. In other words, hydrogen has a high energy density and can store a large amount of energy. The hydrogen conversion process produces only water and no carbon emissions. Hydrogen energy storage systems can respond quickly to changes in energy demand.

[0036] Liquid air energy storage systems utilize excess electrical energy to compress and cool air into a liquid state, which is then stored in an insulated container. When energy is needed, the liquid air is pumped back into a gaseous state and generates electricity through an expansion turbine. Liquid air has a much smaller volume than gaseous air, thus allowing it to store significantly more energy. The system's storage capacity can be easily expanded as needed. Liquid air energy storage systems also boast a long cycle life and low maintenance costs.

[0037] In other words, both types of energy storage devices can effectively store excess electrical energy and release it when needed, thereby improving the overall energy efficiency of the system. Through the regulating function of energy storage unit 12, the system can better cope with the intermittency of renewable energy and maintain a stable power supply. By adopting these advanced energy storage technologies, the system can rely less on fossil fuels. These energy storage technologies also help integrate more renewable energy into the grid, thereby promoting the green transformation of the energy structure.

[0038] In some embodiments, the trapping component 21 includes an absorption unit and a desorption unit. The absorption unit uses a chemical adsorbent to react with carbon dioxide in the air to achieve trapping, and the desorption unit regenerates the chemical adsorbent enriched with carbon dioxide to release carbon dioxide gas.

[0039] Understandably, the absorption unit utilizes a chemical adsorbent (such as amine compounds, alkaline solutions, etc.) to react chemically with carbon dioxide in the air. When air passes through the absorption unit, carbon dioxide molecules come into contact with the adsorbent and are captured, forming stable compounds.

[0040] Chemical adsorbents typically exhibit high selectivity for carbon dioxide, effectively distinguishing and capturing carbon dioxide molecules. The absorption unit can capture most of the carbon dioxide in the air, improving capture efficiency. The absorption unit can be adjusted according to different operating conditions (such as temperature, pressure, and flow rate) to optimize the capture effect.

[0041] The primary function of the desorption unit is to regenerate the carbon dioxide-enriched chemisorbent, that is, to release the carbon dioxide from the adsorbent through physical or chemical methods. In other words, the desorption unit effectively releases carbon dioxide from the adsorbent for reuse. By optimizing the desorption process, energy consumption during regeneration can be reduced. The desorption unit can produce high-purity carbon dioxide gas, which is crucial for subsequent storage or utilization processes.

[0042] Therefore, the integrated design of the absorption and desorption units ensures efficient carbon dioxide capture and adsorbent recycling, thereby improving the overall system capture efficiency. Optimizing the adsorption and desorption processes reduces system energy consumption and operating costs. The coordinated operation of the absorption and desorption units ensures continuous system operation and minimizes downtime.

[0043] In some embodiments, the chemical adsorbent is an amine solution, and the absorption unit has an adjustment inlet for introducing seawater to utilize the alkalinity of the seawater to enhance the absorption of carbon dioxide.

[0044] Understandably, amine solutions are commonly used chemisorbents. They react chemically with carbon dioxide to form stable carbamates, thereby capturing carbon dioxide. The choice of amine solution depends on factors such as its capture efficiency, cost, regeneration performance, and environmental impact. Amine solutions exhibit high selectivity and high capture efficiency, effectively capturing carbon dioxide from the air. After treatment in the desorption unit, the amine solution can be regenerated and reused.

[0045] The absorption unit's regulating inlet is designed to allow seawater to enter; the alkalinity of seawater enhances the absorption capacity of the amine solution for carbon dioxide. Seawater contains naturally occurring alkaline substances, such as bicarbonates and carbonates, which can react with carbon dioxide to form carbonates, thereby increasing the solubility of carbon dioxide.

[0046] In other words, the addition of seawater increases the solubility of carbon dioxide in the absorption unit, thereby enhancing the capture capacity of the amine solution. Utilizing the natural alkalinity of seawater reduces the consumption of chemisorbents, lowering system operating costs. Using seawater as an enhancer reduces the use of chemical additives, helping to mitigate the system's environmental impact.

[0047] Therefore, by combining the alkalinity of the amine solution and seawater, the system can more effectively capture carbon dioxide, improving capture efficiency. Utilizing the natural properties of seawater to enhance capture capacity reduces the consumption of chemisorbents and operating costs. The system design takes environmental factors into account, reducing the use of chemical additives and lowering the overall environmental impact of the system.

[0048] In some embodiments, the conveying component 22 includes a compression liquefaction device and a conveying pipeline. The compression liquefaction device is connected to the trapping component 21 for compressing the trapped carbon dioxide to a liquid or supercritical state. The conveying pipeline is used to convey the compressed carbon dioxide to the storage component 3.

[0049] Understandably, the main function of a compression liquefaction unit is to compress captured carbon dioxide into a liquid or supercritical state. The compressor compresses the carbon dioxide gas to a high pressure, and then the cooling system lowers its temperature, causing it to liquefy or reach a supercritical state.

[0050] Liquid or supercritical carbon dioxide has a much smaller volume than its gaseous state, making transportation more efficient. Although compression requires energy, transporting liquid or supercritical carbon dioxide is generally less energy-intensive than transporting gaseous carbon dioxide. The risk of leakage during transportation is also lower for liquid or supercritical carbon dioxide.

[0051] The delivery pipeline is used to transport the carbon dioxide processed by the compressed liquefaction unit to the storage assembly 3. The pipeline material needs to be able to withstand high pressure and have good corrosion resistance.

[0052] The pipeline design ensures the safe transport of carbon dioxide under high pressure. Pipeline transport reduces carbon emissions and environmental impact during transportation. Pipeline transport is generally more economical than other modes of transport, such as ships or trucks.

[0053] In other words, the combined use of the compression liquefaction unit and the delivery pipeline enables the efficient and safe delivery of carbon dioxide to the storage location in a liquid or supercritical state. By improving delivery efficiency, the system can reduce long-term operating costs. The system design takes environmental impact into account, reducing the system's environmental impact by minimizing leakage and carbon emissions during transportation. The design of the delivery component 22 allows for adjustment of delivery pressure and flow rate according to actual needs to adapt to different operating conditions and environmental requirements.

[0054] In some embodiments, the storage component 3 includes a connecting pipe and at least one subsea injection well, the connecting pipe connecting the delivery component 22 and at least one subsea injection well for injecting carbon dioxide into the underground reservoir.

[0055] Specifically, the connecting pipeline is used to connect the delivery component 22 to the subsea injection well, forming a delivery channel for carbon dioxide from the offshore platform to the subsea reservoir. The pipeline material must be able to withstand high pressure and corrosion to ensure the safety and stability of the carbon dioxide during delivery.

[0056] Understandably, the design of the connecting pipelines ensures the safe transport of carbon dioxide under high pressure. High-pressure and corrosion-resistant pipeline materials and technologies help reduce the risk of leakage during transport. Subsea injection wells effectively sequester carbon dioxide within underground reservoirs, reducing its emissions into the atmosphere. Selecting suitable geological structures as sequestration sites ensures the long-term safety of carbon dioxide storage. Injection wells are typically equipped with monitoring devices to monitor the carbon dioxide injection process and the condition of the underground reservoir.

[0057] In some embodiments, a control valve is provided on the connecting pipe to prevent backflow of the sealed medium.

[0058] Understandably, the control valve is installed on the connecting pipeline, typically at the inlet of the subsea injection well. The valve can be controlled automatically or manually; preferably, the control valve is automatically controlled to ensure that carbon dioxide flows in only one direction during injection, i.e., from the delivery pipeline to the subsea injection well.

[0059] In other words, the control valve is designed to prevent carbon dioxide from flowing back into the delivery pipeline during or after storage, ensuring system safety. The valve can regulate the pressure in the injection well to adapt to different geological conditions and injection requirements. In emergencies, the control valve can be quickly closed to cut off the flow of carbon dioxide, preventing potential leaks or accidents.

[0060] In some embodiments, the marine wind and solar integrated CCUS system of the present invention further includes a monitoring component, which includes multiple monitoring elements connected to at least one of the capture component and the storage component 3, for real-time monitoring of the pressure, temperature and migration status of the collected and / or stored carbon dioxide.

[0061] Specifically, the monitoring element can be connected to the collection component, or the monitoring element can be connected to the storage component 3, or both the collection component and the storage component 3 can be equipped with monitoring elements. The configuration of the monitoring components can be adjusted according to different operational requirements and environmental conditions to improve the adaptability and reliability of the system.

[0062] Understandably, the monitoring components include pressure sensors, temperature sensors, and migration monitoring equipment. Pressure sensors are used to monitor the carbon dioxide pressure in the capture and storage components 3. These sensors provide real-time pressure data to help the system control pressure and ensure safe operation. Temperature sensors are used to monitor the carbon dioxide temperature in the capture and storage components 3. Temperature data is crucial for ensuring that carbon dioxide is captured and stored under appropriate conditions. Migration monitoring equipment is used to monitor the migration status of carbon dioxide in the underground reservoir. This may include technologies such as seismic monitoring, ground subsidence monitoring, and underground fluid monitoring.

[0063] In other words, the monitoring component can collect real-time data on carbon dioxide pressure, temperature, and migration status, providing crucial information for system operation. Through real-time monitoring, the component can issue timely warnings when anomalies are detected, helping operators take measures to prevent accidents. Monitoring data can help operators optimize the capture and storage process, improving the overall efficiency and performance of the system. The monitoring component not only monitors the state of carbon dioxide but also its environmental impact, ensuring that the storage process does not adversely affect the marine environment. For storage component 3, the monitoring component can perform long-term monitoring to ensure the long-term stability of carbon dioxide in the underground reservoir.

[0064] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0065] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0066] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0067] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0068] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0069] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A marine landscape integrated CCUS system, characterized in that, include: Installation platform; An energy supply component, which is located on the installation platform, is used to provide power; A carbon capture assembly is provided on the installation platform and electrically connected to the energy supply assembly. The carbon capture assembly includes a capture component and a conveying component. The capture component is used to capture and process carbon dioxide from ambient air, and the conveying component is used to convey the captured carbon dioxide. A storage assembly, connected to the delivery component, for injecting and storing carbon dioxide in seabed geological structures.

2. The integrated marine wind and solar CCUS system according to claim 1, characterized in that, The energy supply components include a power generation unit and an energy storage unit, wherein the energy storage unit is used to balance the power fluctuations of the power generation unit and store excess electrical energy.

3. The integrated marine wind and solar CCUS system according to claim 2, characterized in that, The power generation unit includes at least one of a wind power generation unit and a solar power generation unit.

4. The integrated marine wind and solar CCUS system according to claim 3, characterized in that, The energy storage unit is a hydrogen-based energy storage device or a liquid air energy storage device.

5. The marine wind and solar integrated CCUS system according to any one of claims 1-4, characterized in that, The capture component includes an absorption unit and a desorption unit. The absorption unit uses a chemical adsorbent to react with carbon dioxide in the air to achieve capture. The desorption unit regenerates the chemical adsorbent that has been enriched with carbon dioxide to release carbon dioxide gas.

6. The marine wind and solar integrated CCUS system according to claim 5, characterized in that, The chemical adsorbent is an amine solution, and the absorption unit has an adjustment inlet for introducing seawater to enhance the absorption of carbon dioxide by utilizing the alkalinity of the seawater.

7. The integrated marine wind and solar CCUS system according to claim 6, characterized in that, The conveying component includes a compression liquefaction device and a conveying pipeline. The compression liquefaction device is connected to the trapping component to compress the trapped carbon dioxide to a liquid or supercritical state. The conveying pipeline is used to convey the compressed carbon dioxide to the storage component.

8. The integrated marine wind and solar CCUS system according to claim 7, characterized in that, The storage assembly includes a connecting pipe and at least one subsea injection well, the connecting pipe connecting the delivery component and at least one subsea injection well for injecting carbon dioxide into the underground reservoir.

9. The integrated marine wind and solar CCUS system according to claim 8, characterized in that, The connecting pipe is equipped with a control valve to prevent backflow of the sealed medium.

10. The marine wind and solar integrated CCUS system according to claim 9, characterized in that, It also includes a monitoring component comprising multiple monitoring elements connected to at least one of the capture component and the storage component for real-time monitoring of the pressure, temperature and migration status of the collected and / or stored carbon dioxide.

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