An ocean renewable energy-driven carbon storage system

Abstract

The present invention discloses an ocean renewable energy-driven carbon storage system, which includes a photosynthesis reaction system, a microbial carbon pump system, a microalgae percolation capture system, and a transmission system; the photosynthesis reaction system includes a plurality of floating reactors arranged on the sea surface, and each of the floating reactors is used to accommodate carbon-fixing microalgae; the microbial carbon pump system includes a carbon storage container; the microalgae percolation capture system is used to collect the carbon-fixing microalgae in the plurality of floating reactors into the carbon storage container located on the sea surface; the transmission system is used to transfer the carbon storage container located on the sea surface to the seabed for storage. The present invention aims to solve the problems of unstable carbon storage and limited timeliness in the existing carbon storage technology.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon storage, and particularly to an ocean renewable energy-driven carbon storage system. Background Art

[0002] Approximately 83% of the global carbon cycle needs to be completed through the ocean. Marine phytoplankton (mainly algae) accounts for only 1% of the biomass of land plants, but contributes approximately 50% of the global annual atmospheric carbon dioxide absorption. The organic matter produced by surface ocean algae absorbing atmospheric carbon dioxide is transported to deep-sea seawater or seabed sediments through the biological carbon pump (BCP), and is transformed into a stable form of solid carbonate through the microbial carbon pump (MCP) under anaerobic conditions and the action of microorganisms, storing the original atmospheric carbon dioxide for over a thousand years. However, more than 99% of the organic matter of surface ocean algae is metabolized and consumed by the respiration of various marine microorganisms during the sedimentation process, producing carbon dioxide and returning it to the atmosphere. Summary of the Invention

[0003] The main object of the present invention is to propose an ocean renewable energy-driven carbon storage system, aiming to solve the problems of unstable carbon storage and limited timeliness in the existing carbon storage technology.

[0004] To achieve the above object, an ocean renewable energy-driven carbon storage system proposed by the present invention includes:

[0005] A photosynthesis reaction system, including a plurality of floating reactors disposed on the sea surface, and each of the floating reactors is used to contain carbon-fixing microalgae;

[0006] A microbial carbon pump system, including a carbon storage container;

[0007] A microalgae filtration and capture system for collecting the carbon-fixing microalgae in the plurality of floating reactors into a carbon storage container disposed on the sea surface; and,

[0008] A transmission system for transporting the carbon storage container disposed on the sea surface to the seabed for storage.

[0009] Optionally, the photosynthesis reaction system includes:

[0010] A reaction enclosure disposed on the sea surface, enclosing a reaction area; and,

[0011] A connecting pipe assembly for connecting two adjacent floating reaction containers in a first direction;

[0012] Wherein, the plurality of floating reactors and the connecting pipe assembly are disposed in the reaction area.

[0013] Optionally, the plurality of floating reactors include a plurality of open - type floating photoreactors and / or a plurality of closed - type floating photoreactors.

[0014] Optionally, the microalgae filtration and capture system includes:

[0015] An offshore clean - energy operation vessel;

[0016] A vacuum filtration container provided on the offshore clean - energy operation vessel, the vacuum filtration container including a plurality of zero - carbon material hollow algae - filtering members, each of the zero - carbon material hollow algae - filtering members being used to fix the carbon - sequestering microalgae collected; and

[0017] A power device provided on the offshore clean - energy operation vessel for transporting the carbon - sequestering microalgae in the floating reactor into the zero - carbon material hollow algae - filtering members;

[0018] Wherein, the carbon storage container includes the zero - carbon material hollow algae - filtering members.

[0019] Optionally, the material of the zero - carbon material hollow algae - filtering members includes at least one of mixed sandy soil, cohesive soil, olivine, alkaline minerals, and industrial waste residues.

[0020] Optionally, the zero - carbon material hollow algae - filtering members are formed by 3D printing.

[0021] Optionally, the power device includes a water suction pump and a drainage pump, which are located at both ends of the vacuum filtration container. The water suction pump is used to suck the carbon - sequestering microalgae in the floating reactor, and the drainage pump is used to discharge the seawater filtered by the vacuum filtration container.

[0022] Optionally, the transmission system includes a carbon storage cartridge for sealing the zero - carbon material hollow algae - filtering members.

[0023] Optionally, an accommodation cavity is formed in the carbon storage cartridge, and the accommodation cavity is used to fill the zero - carbon material hollow algae - filtering members containing microalgae.

[0024] Optionally, the sum of the gravity of the carbon storage cartridge and the zero - carbon material hollow algae - filtering members containing microalgae is greater than the buoyancy of seawater.

[0025] In the technical solution of the present invention, the carbon-fixing microalgae in the light reaction system convert carbon dioxide in the environment into organic matter through photosynthesis and store it in their bodies. Subsequently, the microalgae percolation capture system collects the carbon-fixing microalgae that have absorbed carbon dioxide into a carbon storage container for sequestration. The transmission system then transfers the carbon storage container located on the sea surface to the seabed (i.e., the microbial carbon pump system) for storage, completing carbon storage. The marine renewable energy-driven carbon storage system provided by the present invention is based on the marine system, uses marine clean energy as the driving force, converts carbon dioxide into organic matter through the photosynthesis of microalgae, stores carbon dioxide in the microalgae, fixes the microalgae in the carbon storage container, buries the carbon storage container in the seabed sediments through the transmission system, and under the action of biochemical reactions, converts the microalgae organic matter and fillers inside it into stable carbonates under the action of the microbio-carbon pump. It has a high carbon dioxide conversion rate and a long carbon storage time limit, and can effectively solve the carbon dioxide problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0027] Figure 1 It is a schematic structural diagram of an embodiment of the marine renewable energy-driven carbon storage system provided by the present invention;

[0028] Figure 2 is Figure 1 a schematic structural diagram of an embodiment of the reaction system;

[0029] Figure 3 is Figure 1 a schematic structural diagram of an embodiment of the microalgae percolation capture system in;

[0030] Figure 4 is Figure 1 a schematic structural diagram of an embodiment of the carbon storage cartridge case in.

[0031] Explanation of the reference numerals in the drawings:

[0032]

[0033]

[0034] The realization of the object, functional features and advantages of the present invention will be further described in conjunction with the embodiments with reference to the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, then the directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the drawings). If the specific posture changes, then the directional indications will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, then the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes the scenario of A, or the scenario of B, or the scenario where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0038] Approximately 83% of the global carbon cycle needs to be completed through the ocean. Marine phytoplankton (mainly algae) accounts for only 1% of the biomass of land plants, but contributes approximately 50% of the global annual atmospheric carbon dioxide absorption. The organic matter produced by surface ocean algae absorbing carbon dioxide from the atmosphere is transported to deep-sea seawater or seafloor sediments through the biological carbon pump (BCP), and is transformed into a stable form of solid carbonate through the microbial carbon pump (MCP) under anaerobic conditions and the action of microorganisms, storing the original atmospheric carbon dioxide for more than a thousand years. However, more than 99% of the organic matter of surface ocean algae will be metabolized and consumed by the respiration of various marine microorganisms during the sedimentation process, producing carbon dioxide and returning it to the atmosphere.

[0039] In view of this, the present invention provides a marine renewable energy-driven carbon storage system. Figures 1 to 4An embodiment of a marine renewable energy-driven carbon storage system provided by the present invention will be described below with reference to specific drawings mainly for the marine renewable energy-driven carbon storage system.

[0040] Please refer to Figure 1 , the marine renewable energy-driven carbon storage system 100 includes a photosynthesis reaction system 1, a microbial carbon pump system 2, a microalgae percolation capture system 3, and a transmission system 4; the photosynthesis reaction system 1 includes a plurality of floating reactors 11 arranged on the sea surface, and each of the floating reactors 11 is used to contain carbon-fixing microalgae; the microbial carbon pump system 2 includes a carbon storage container 21; the microalgae percolation capture system 3 is used to collect the carbon-fixing microalgae in the plurality of floating reactors 11 into the carbon storage container 21 located on the sea surface; the transmission system 4 is used to transfer the carbon storage container 21 located on the sea surface to the seabed for storage.

[0041] In the technical solution of the present invention, the carbon-fixing microalgae in the photosynthesis reaction system 1 convert carbon dioxide in the environment into organic matter through photosynthesis and store it in their bodies. Subsequently, the microalgae percolation capture system 3 collects the carbon-fixing microalgae that have absorbed carbon dioxide into the carbon storage container 21 for storage, and then the transmission system 4 transfers the carbon storage container 21 located on the sea surface to the seabed (i.e., the microbial carbon pump system 2) for storage to complete carbon storage; the marine renewable energy-driven carbon storage system 100 provided by the present invention is based on the marine system, uses marine clean energy as the driving force, converts carbon dioxide into organic matter through the photosynthesis of microalgae, stores carbon dioxide in microalgae, fixes the microalgae in the carbon storage container 21, buries the carbon storage container 21 in the seabed sediment through the transmission system 4, and under the action of biochemical reactions, converts the microalgae organic matter and fillers inside it into stable carbonates under the action of the micro-biological carbon pump. It has a high carbon dioxide conversion rate and a long carbon storage time limit, and can effectively solve the carbon dioxide problem.

[0042] It should be noted that in this embodiment, the marine renewable energy-driven carbon storage system 100 stores carbon based on the marine system. The marine system includes the sea surface, sea water, and seabed. The photosynthesis reaction system 1 and the microalgae percolation capture system 3 are arranged on the sea surface, the transmission system 4 is arranged in the sea water, and the microbial carbon pump system 2 is arranged on the seabed.

[0043] Please refer to Figure 1 and Figure 2, in order to prevent the carbon-fixing microalgae from dispersing on the sea surface due to environmental factors and other reasons, in this embodiment, the light reaction system 1 includes a reaction fence 12 and a connecting pipe assembly; the reaction fence 12 is arranged on the sea surface and encloses a reaction area; the connecting pipe assembly is used to connect two adjacent floating reaction vessels in a first direction. Among them, a plurality of the floating reactors 11 and the connecting pipe assembly are arranged in the reaction area. The connecting pipe assembly includes a plurality of suspended flexible connecting pipes 13. Specifically, during actual operation, a plurality of the floating reactors 11 are arranged in the reaction area, and in the first direction, two adjacent floating reactors 11 are connected by the suspended flexible connecting pipes 13, so as to facilitate the carbon-fixing microalgae in each floating reactor 11 to be captured by the microalgae filtration and capture system 3. It should be noted that the connection method between the two floating reactors 11 is not limited, as long as they can be connected. For example, the two floating reactors 11 are connected by one suspended flexible connecting pipe 13; for example, the two floating reactors 11 are connected by a plurality of suspended flexible connecting pipes 13. The specific connection method can be selected according to the actual situation.

[0044] Furthermore, please continue to refer to Figure 2 , the specific type of the floating reactor 11 is not limited, as long as it can meet the photosynthesis of the carbon-fixing microalgae; in one embodiment, a plurality of the floating reactors 11 are a plurality of open-type floating photoreactors 111; in another embodiment, a plurality of the floating reactors 11 are a plurality of closed-type floating photoreactors 112; in still another embodiment, a plurality of the floating reactors 11 are a plurality of open-type floating photoreactors 111 and a plurality of closed-type floating photoreactors 112.

[0045] In this embodiment, the open-type floating photoreactor 111 and the closed-type floating photoreactor 112 can meet the high-density growth of algal strains and algae bacteria in the closed and open culture modes on the sea, absorb carbon dioxide in the air, and realize the large-scale cultivation and carbon absorption of carbon-fixing microalgae on the sea; the suspended flexible connecting pipe 13 is used to fix and connect a single floating reactor 11, and the light reaction fence 12 is used to construct a large-scale light reaction field. Compared with onshore microalgae cultivation, the marine renewable energy-driven carbon storage system 100 provided by the present invention greatly reduces the cultivation cost, thus making the carbon storage solution of carbon-fixing microalgae a reality.

[0046] Please refer to Figure 1 and Figure 3, the microalgae percolation capture system 3 includes an offshore clean energy operation vessel 31, a vacuum filtration container 32, and a power device 33; the vacuum filtration container 32 is provided on the offshore clean energy operation vessel 31, and the vacuum filtration container 32 includes a plurality of zero-carbon material hollow algae filtration components 321, and each of the zero-carbon material hollow algae filtration components 321 is used to fix the collected carbon-fixing microalgae; the power device 33 is provided on the offshore clean energy operation vessel 31 to transport the carbon-fixing microalgae in the floating reactor 11 into the zero-carbon material hollow algae filtration components 321; wherein, the carbon storage container 21 includes the zero-carbon material hollow algae filtration components 321. Specifically, the microalgae percolation capture system 3 further includes an offshore wind turbine 34, and the offshore wind turbine 34 is used to provide power for the offshore clean energy operation vessel 31 and all the devices thereon. The vacuum filtration container 32 has a certain space for placing the zero-carbon material hollow algae filtration components 321. In the actual operation process, the power device 33 absorbs the carbon-fixing microalgae in the floating reactor 11 and transports the carbon-fixing microalgae into the zero-carbon material hollow algae filtration components 321 for storage.

[0047] Further, in order to ensure that the carbon-fixing microalgae can be stably stored in the zero-carbon material hollow algae filtration components 321, the material of the zero-carbon material hollow algae filtration components 321 includes at least one of mixed sand, clay, olivine, alkaline minerals, and industrial waste residues. In one embodiment, solid fillers 42 such as mixed sand, clay, olivine, alkaline minerals, and industrial waste residues are filled in the zero-carbon material hollow algae filtration components 321 in a certain proportion. Specifically, the solid fillers 42 include 30% mixed sand, 10% clay, 15% olivine, 25% alkaline minerals, and 20% industrial waste residues.

[0048] Further, in one embodiment, fillers that can be added in advance to degrade and transform carbon-fixing microalgae into carbonate rock fillers and bacteria, etc., can effectively optimize the microbio-carbon pump process in nature through human engineering. The carbon-fixing microalgae that capture carbon dioxide in the zero-carbon material hollow algae filtration components 321 are transformed into stable carbonate rock under the action of the microbio-carbon pump to achieve permanent storage of carbon dioxide in the seabed.

[0049] Even further, in this embodiment, the zero-carbon material hollow algae filtration components 321 are formed by 3D printing.

[0050] Please continue to refer to Figure 3, the power device 33 includes a water suction pump 331 and a drainage pump 332, which are located at both ends of the vacuum filter container 32. The water suction pump 331 is used to suck the carbon-fixing microalgae in the floating reactor 11, and the drainage pump 332 is used to discharge the seawater filtered by the vacuum filter container 32. In this embodiment, the power device 33 further includes a connecting pipe 333 and a flange connecting valve 334. The connecting pipe 333 is used to connect the zero-carbon material hollow algae-filtering component 321, the water suction pump 331 and the drainage pump 332. The flange connecting valve 334 is used to connect the pipelines between the connecting pipe 333, the zero-carbon material hollow algae-filtering component 321, the water suction pump 331 and the drainage pump 332. In this embodiment, the carbon-fixing microalgae that absorb carbon dioxide in the light reaction system 1 are absorbed into the zero-carbon material hollow algae-filtering component 321 under the pumping pressure of the water suction pump 331, and the carbon-fixing microalgae are enriched in the solid filler 42 through the percolation effect under the driving force of the pumping pressure.

[0051] It should be noted that the specific structure of the transmission system 4 is not limited, as long as it can ensure that the carbon storage container 21 on the sea surface is transferred to the seabed for storage. In this embodiment, considering the cost and the environmental protection of the ocean, the transmission system 4 can be the ocean itself, and the transmission can be completed by using the principle that gravity is greater than buoyancy (that is, the gravity of the carbon storage shell 41 is greater than the buoyancy of the seawater in the ocean).

[0052] Please refer to Figure 1 and Figure 4 , in this embodiment, in order to prevent the zero-carbon material hollow algae-filtering component 321 from cracking during the process of sinking to the seabed, the transmission system 4 includes a carbon storage shell 41, which is used to seal the zero-carbon material hollow algae-filtering component 321 and protect the zero-carbon material hollow algae-filtering component 321 from being damaged.

[0053] The specific setting form of the carbon storage shell 41 is not limited, as long as it can wrap the zero-carbon material hollow algae-filtering component 321 containing microalgae; in one embodiment, an accommodation cavity is formed in the carbon storage shell 41, and the accommodation cavity is used to fill the zero-carbon material hollow algae-filtering component containing microalgae; in another embodiment, please refer to Figure 4, a first chamber 411, a second chamber 412, and a third chamber 413 are formed in the carbon storage cartridge 41 and arranged in sequence in the up-down direction. The first chamber 411 and the third chamber 413 are filled with solid filler 42, and the second chamber 412 is used to fill the zero-carbon material hollow algae-filtering member 321 containing microalgae. In this embodiment, in order to ensure that the zero-carbon material hollow algae-filtering member 321 can smoothly sink to the seabed, the gravity of the carbon storage cartridge 41 needs to be greater than the buoyancy of seawater. Therefore, the first chamber 411 and the third chamber 413 are filled with solid filler 42. On the one hand, it can increase the weight of the carbon storage cartridge 41, and on the other hand, it can also protect the zero-carbon material hollow algae-filtering member 321 located in the second chamber 412 and prevent it from cracking.

[0054] Furthermore, in order to ensure that the carbon storage container 21 can be smoothly sealed in the seabed, the sum of the gravity of the carbon storage cartridge 41 and the zero-carbon material hollow algae-filtering member 321 containing microalgae is greater than the buoyancy of seawater. In this embodiment, when the carbon-fixing microalgae in the vacuum collection and filtration container 32 fill the zero-carbon material hollow algae-filtering member 321, this filler rich in carbon-fixing microalgae is sealed in the carbon storage cartridge 41 printed by 3D printing assembly technology through assembly technology. Due to the action of the solid filler 42 in the carbon storage cartridge 41, its gravity in water can be designed to be much greater than its buoyancy, and its own weight can carry the microalgae to quickly penetrate and bury into the seabed sediment (soft mud); at the same time, the carbon storage cartridge 41 can also effectively protect the carbon-fixing microalgae from being preyed by the marine biological chain during the settlement process and prevent the occurrence of the traditional biological pump process.

[0055] Furthermore, the carbon storage cartridge 41 carries the zero-carbon material hollow algae-filtering member 321 that captures carbon dioxide and the carbon-fixing microalgae and penetrates into the seabed sediment and cracks, and the solid filler 42 undergoes carbonate conversion under the action of microorganisms in the natural environment.

[0056] Even further, in this embodiment, the solid filler 42 can be pre-added with substances that can degrade and transform microalgae into carbonate rock filler and bacteria, etc., which can effectively optimize the micro-biological carbon pump process in nature through human engineering. The carbon-fixing microalgae that capture carbon dioxide in the zero-carbon material hollow algae-filtering member 321 are transformed into stable carbonate rock under the action of the micro-biological carbon pump to achieve permanent storage of carbon dioxide in the seabed.

[0057] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An ocean renewable energy-driven carbon storage system, characterized in that, Comprising: A light reaction system, including a plurality of floating reactors arranged on the sea surface, and each of the floating reactors is used to accommodate carbon-fixing microalgae; A microbial carbon pump system, including a carbon storage container; A microalgae filtration and capture system for collecting the carbon-fixing microalgae in the plurality of floating reactors into the carbon storage container located on the sea surface; And A transmission system for transporting the carbon storage container located on the sea surface to the seabed for storage; The light reaction system includes: A reaction fence arranged on the sea surface, enclosing a reaction area; and A connecting pipe assembly for connecting two adjacent floating reaction vessels in a first direction; Wherein, the plurality of floating reactors and the connecting pipe assembly are arranged in the reaction area; The plurality of floating reactors include a plurality of open-type floating photoreactors and / or a plurality of closed-type floating photoreactors; The microalgae filtration and capture system includes: An offshore clean energy operation ship; A vacuum filtration and collection container arranged on the offshore clean energy operation ship, the vacuum filtration and collection container includes a plurality of zero-carbon material hollow algae-filtering members, and each of the zero-carbon material hollow algae-filtering members is used to fix the collected carbon-fixing microalgae; and A power device arranged on the offshore clean energy operation ship for transporting the carbon-fixing microalgae in the floating reactor to the zero-carbon material hollow algae-filtering member; Wherein, the carbon storage container includes the zero-carbon material hollow algae-filtering member; The material of the zero-carbon material hollow algae-filtering member includes at least one of mixed sandy soil, cohesive soil, olivine, alkaline minerals, and industrial waste residue.

2. The marine renewable energy-driven carbon storage system according to claim 1, wherein The zero-carbon material hollow algae-filtering member is formed by 3D printing.

3. The marine renewable energy-driven carbon storage system according to claim 1, wherein The power device includes a water suction pump and a drainage pump, which are respectively located at both ends of the vacuum filtration and collection container. The water suction pump is used to suck the carbon-fixing microalgae in the floating reactor, and the drainage pump is used to discharge the seawater filtered by the vacuum filtration and collection container.

4. The marine renewable energy-driven carbon storage system according to claim 1, wherein The transmission system includes a carbon storage cartridge for sealing the zero-carbon material hollow algae-filtering member.

5. The marine renewable energy-driven carbon storage system according to claim 4, wherein, An accommodation cavity is formed in the carbon storage cartridge, and the accommodation cavity is used to fill the zero-carbon material hollow algae-filtering member containing microalgae.

6. The marine renewable energy-driven carbon storage system according to claim 5, characterized in that, The sum of the gravity of the carbon storage cartridge and the zero-carbon material hollow algae-filtering member containing microalgae is greater than the buoyancy of seawater.

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