Floating type marine carbon capture-conversion reactor
By designing a floating carbon capture-conversion reactor in the ocean, using ultrasonic vibration and electrolysis technology to capture and convert carbon dioxide in seawater into methanol, the problems of high energy consumption and complex operation in the existing technology are solved, and high efficiency is achieved. Simplified carbon capture and conversion effects.
Patent Information
- Application Number
- CN202420989302.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The existing carbon dioxide extraction technology in seawater has the problems of high energy consumption, complex operation and difficulty in scale, especially the difficulty of converting carbon into methanol.
A floating marine carbon capture-conversion reactor was designed, using ultrasonic vibration plates, platinum electrode plates, diffusion layer of porous carbon materials, and floating cathodes of copper-based single-atom catalysts to transfer carbon dioxide in seawater through ultrasonic vibration and electrolysis processes. Capture and convert to high value product methanol.
It realizes efficient capture and conversion of carbon dioxide in seawater, simplifies the equipment structure, reduces energy consumption, and has strong scalability and large-scale production potential, and can continuously synthesize high-value products.
Smart Images
Figure CN222250181U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ocean carbon capture and carbon conversion, and in particular to a floating ocean carbon capture-conversion reactor. Background Art
[0002] The ocean is a treasure trove of carbon content. Currently, the ocean absorbs 30-40% of all human carbon emissions each year. The total amount of carbon dioxide in seawater is 14 times that in the air, and the concentration is more than 100 times that in the air. The world's largest atmospheric carbon dioxide "sink" is the ocean. If the carbon in seawater is captured and processed, it will absorb more carbon from the air to rebalance the concentration, and the cost of liquid phase enrichment and desorption is much lower than that of the gas phase.
[0003] Since the carbon in seawater mostly exists in the form of carbonic acid, bicarbonate and carbonate, it is difficult for carbon dioxide to escape directly from seawater in the form of gas, and carbon capture and carbon resource utilization are relatively difficult. Current carbon conversion technologies mostly convert carbon dioxide into products such as carbon monoxide, methane and formic acid, while the carbon conversion of methanol is relatively difficult.
[0004] The schemes for extracting dissolved carbon dioxide from seawater in the prior art are as follows: for example, CN201911287574.0 A seawater acidification device and method for improving the purity of CO-2 extracted from seawater adopts a high-energy consumption acidification and degassing device group; CN200810071896.7 A method for extracting dissolved carbon dioxide from seawater and carbon dioxide from carbonates, the present invention directly converts carbon dioxide extracted by ultrasound using a complex process flow;
[0005] CN201420744897.4 All-weather photoelectrocatalytic carbon dioxide reduction reaction device, CN202410233026.4 A multi-effect water removal carbon dioxide electrocatalytic reduction device and CN202222611609.5 A novel structure of carbon dioxide reduction experimental device using traditional electrode technology;
[0006] CN201420581434.0 is a device for preparing carbon monoxide by electrochemical catalytic reduction of carbon dioxide at a phase interface, CN202023117422.7 is a device for gas phase electrolytic reduction of carbon dioxide, and CN202122553459.2 is a reaction device for catalytic reduction of carbon dioxide all use gas diffusion electrodes.
[0007] In summary, the existing technology for extracting dissolved carbon dioxide from seawater uses relatively complex equipment, and has problems such as high energy consumption, complex operation, and difficulty in scalability. Therefore, the present application provides a floating ocean carbon capture-conversion reactor to solve the above problems. Utility Model Content
[0008] The purpose of the utility model is to solve the problems existing in the prior art of extracting dissolved carbon dioxide in seawater, and further provide a floating ocean carbon capture-conversion reactor.
[0009] The technical solution adopted by the utility model to solve the above problems is: a floating marine carbon capture-conversion reactor, the reactor comprising an ultrasonic vibration plate, a fixed anode plate and a floating cathode arranged inside an outer shell; the ultrasonic vibration plates are respectively installed on the left and right side walls of the outer shell, the fixed anode plate is connected to the bottom of the outer shell, the floating cathode is arranged on the upper part of the fixed anode plate, and the top of the outer shell is movably connected to a top cover.
[0010] Preferably, the fixed anode plate is a platinum electrode plate.
[0011] Preferably, the floating cathode comprises a catalytic layer, a diffusion layer and a hydrophobic structure; the catalytic layer, the diffusion layer and the hydrophobic structure are arranged on a main board of the floating cathode in sequence from top to bottom, and the main board is connected to the inner wall of the housing.
[0012] Preferably, the catalytic layer is a single-atom catalyst mainly based on copper.
[0013] Preferably, the diffusion layer is made of porous carbon material.
[0014] Preferably, the hydrophobic structure is a needle-shaped structure of a hydrophobic material.
[0015] Preferably, one end of the top cover is rotatably connected to the outer shell via a rotating shaft, and the other end is provided with a fixed slot.
[0016] Preferably, a solar photovoltaic panel is arranged outside the top cover.
[0017] Preferably, a water outlet pipe is provided at the rear of the housing.
[0018] Preferably, a front plate is further provided at the front of the housing, and a water inlet pipe is provided on the front plate.
[0019] The utility model has the following beneficial technical effects:
[0020] The reactor of the utility model is provided with ultrasonic vibration plates on both sides, and the vibration causes carbon dioxide to overflow in the form of bubbles. Needle-shaped hydrophobic materials are connected under the cathode to provide more nucleation sites, which promote the formation of bubbles and participate in the reaction at the cathode through the diffusion layer. The gas diffusion layer in the cathode uses porous carbon materials to construct porous carbon materials suitable for the passage of carbon dioxide so as to capture carbon dioxide in the form of bubbles in time. The utility model can effectively promote the carbon in the form of carbonates, bicarbonates, etc. in seawater to overflow and be captured in the form of carbon dioxide.
[0021] The utility model discloses a novel floating reactor, which can directly electrolyze the captured carbon dioxide at the cathode to synthesize effective products. A floating cathode that integrates a diffusion layer and a specific catalytic layer for efficiently adsorbing carbon dioxide is arranged inside the reactor, and electrolyzes carbon dioxide to produce high-value products while floating with the inflow and outflow of seawater. The cathode electrocatalytic reduction of carbon dioxide adopts a copper-based single-atom catalyst, which can convert carbon dioxide into green methanol with high selectivity. The floating cathode electrolyzes carbon dioxide while floating with the inflow and outflow of seawater, and continuously and efficiently electrolyzes carbon dioxide at the three-phase interface to improve the yield.
[0022] The utility model has a new type of floating reactor, and the electrochemical unit is modularized and can be used in series and systematically. It has strong scalability and can continuously synthesize high-value products after large-scale deployment. After multiple reactors are connected in series, the seawater pipeline outlets can be connected together, which is convenient for centralized treatment of all the seawater after the reaction, and the extraction of pure methanol by means of photothermal conversion and the like. The utility model has a simple structure and is easy to produce on a large scale. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a structural schematic diagram of the utility model;
[0024] Figure 2 It is a structural schematic diagram of the front plate of the utility model;
[0025] Figure 3 It is a schematic diagram of the structure of the floating cathode of the utility model;
[0026] Figure 4 It is a systematic structural schematic diagram of the utility model;
[0027] In the figure, 1. water outlet pipe; 2. ultrasonic vibration plate; 3. top cover; 4. fixed slot; 5. fixed anode plate; 6. floating cathode; 7. hydrophobic structure; 8. rotating shaft; 9. outer shell; 10. front plate; 11. water inlet pipe; 12. catalyst layer; 13. diffusion layer; 14. reactor; 15. water outlet pipe. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments of the specification. The specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0029] Specific implementation method 1: Combination Figures 1 to 4The present embodiment is described as a floating marine carbon capture-conversion reactor, wherein the reactor 14 comprises an ultrasonic vibration plate 2, a fixed anode plate 5 and a floating cathode 6 which are arranged inside a shell 9; the ultrasonic vibration plates 2 are respectively installed on the left and right side walls of the shell 9, the fixed anode plate 5 is connected to the bottom of the shell 9, the floating cathode 6 is arranged on the upper part of the fixed anode plate 5, and a top cover 3 is movably connected to the top of the shell 9.
[0030] In a preferred example, the fixed anode plate 5 is a platinum electrode plate.
[0031] In a preferred example, the floating cathode 6 includes a catalytic layer 12 , a diffusion layer 13 and a hydrophobic structure 7 ; the catalytic layer 12 , the diffusion layer 13 and the hydrophobic structure 7 are sequentially arranged on a main board of the floating cathode from top to bottom, and the main board is connected to the inner wall of the outer shell 9 .
[0032] In a preferred example, the catalytic layer 12 is a single-atom catalyst mainly based on copper.
[0033] In a preferred example, the diffusion layer 13 is made of porous carbon material.
[0034] In a preferred example, the hydrophobic structure 7 is a needle-shaped structure of a hydrophobic material.
[0035] In a preferred example, one end of the top cover 3 is rotatably connected to the housing 9 via a rotating shaft 8, and the other end is provided with a fixed slot 4.
[0036] In a preferred example, a solar photovoltaic panel is disposed on the outside of the top cover 3 .
[0037] In a preferred example, a water outlet pipe 1 is provided at the rear of the housing 9 .
[0038] In a preferred example, a front plate 10 is further provided at the front of the housing 9 , and a water inlet pipe 11 is provided on the front plate 10 .
[0039] Specific implementation method 2: Combination Figures 1 to 4 The present embodiment is a novel floating marine carbon capture-conversion reactor. The front and rear sides of the reactor body are respectively provided with pipes connected to its inner cavity, which are respectively the seawater inlet pipe and the Figure 2 The water inlet pipe 11 and the seawater discharge pipe Figure 1 The outlet pipe 1.
[0040] See also Figure 1As shown, the internal structure of the reactor consists of the following parts: ultrasonic vibration plates 2 are installed on both sides of the reactor body to provide ultrasonic vibration to make carbon dioxide overflow in the form of bubbles for subsequent capture and conversion. The top of the reactor body is a top cover 3 containing a solar panel, and a fixed card slot 4 and a rotating shaft 8 are designed for opening and closing. The fixed card slot 4 is a convex structure, and a pit matching it is provided on the outer shell 9. A fixed anode plate 5 of a platinum electrode plate is provided at the bottom of the reactor as an anode. A floating cathode 6 integrating a diffusion layer and a specific catalytic layer for efficient adsorption of carbon dioxide is provided inside the reactor body. It rises and falls with the rise and fall of the water level, and a needle-shaped hydrophobic material 7 is provided at the bottom to provide more nucleation sites, promote the formation of bubbles and go to the catalytic layer to participate in the cathode reaction. The hydrophobic material 7 is preferably made of PTFE and copper.
[0041] See also Figure 2 As shown, the front plate 10 of the reactor is composed of a water inlet pipe 11 and a plastic plate.
[0042] See also Figure 3 As shown, the floating cathode of the reactor consists of three parts. From top to bottom, there are a catalytic layer 12, a diffusion layer 13 and a needle-shaped hydrophobic structure 7. The catalytic layer 12 uses a copper-based single-atom catalyst, which can convert carbon dioxide into green methanol with high selectivity. The diffusion layer 13 uses a porous carbon material to construct a porous carbon material suitable for carbon dioxide to pass through, so as to capture carbon dioxide in the form of bubbles in time. The needle-shaped hydrophobic structure 7 uses hydrophobic materials, such as PTFE and copper, to provide more nucleation sites, promote the formation of bubbles and participate in the reaction at the cathode through the diffusion layer.
[0043] See also Figure 4 As shown, the system device of the reactor is composed of multiple reactors 14 connected in series. A water pump is connected to the front end of the water inlet pipe 11 to control the entry of seawater. The outlet pipe 1 of each reactor 14 can be connected to the outlet pipe 15 to centrally process all the seawater after the reaction and extract pure methanol by means of photothermal conversion.
[0044] Other components and connection relationships are the same as those in the first specific implementation mode.
[0045] The working principle of this utility model:
[0046] The reactor of the utility model is provided with ultrasonic vibration plates 2 on both sides, and the vibration causes carbon dioxide to overflow in the form of bubbles. The lower part of the floating cathode 6 is connected to a needle-shaped hydrophobic material to provide more nucleation sites, promote the formation of bubbles and participate in the reaction at the cathode through the diffusion layer. The gas diffusion layer 13 in the cathode is made of porous carbon material, and a porous carbon material suitable for carbon dioxide to pass through is constructed so as to capture carbon dioxide in the form of bubbles in time.
[0047] The new floating reactor of the utility model can directly electrolyze the captured carbon dioxide at the cathode to synthesize effective products. A floating cathode integrating a diffusion layer 13 and a specific catalytic layer 12 for efficiently adsorbing carbon dioxide is arranged inside the reactor, and carbon dioxide is electrolyzed to produce high-value products while floating with the inflow and outflow of seawater. The cathode electrocatalytic reduction of carbon dioxide adopts a copper-based single-atom catalyst, which can convert carbon dioxide into green methanol with high selectivity. The floating cathode 6 can electrolyze carbon dioxide while floating with the inflow and outflow of seawater, and continuously and efficiently electrolyze carbon dioxide at the three-phase interface.
[0048] The utility model discloses a novel floating reactor, in which the electrochemical unit is modularized and can be used in series and systematically, with strong scalability. After large-scale deployment, high-value products can be continuously synthesized. After multiple reactors 14 are connected in series, the seawater pipeline outlet can be connected to the water outlet pipeline 15 together, which is convenient for centralized treatment of all the seawater after the reaction, and the extraction of pure methanol by means of photothermal conversion and the like.
[0049] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A floating ocean carbon capture-conversion reactor, characterized in that: The reactor (14) comprises an ultrasonic vibration plate (2), a fixed anode plate (5) and a floating cathode (6) arranged inside a housing (9); Ultrasonic vibration plates (2) are respectively installed on the left and right side walls of the housing (9). The fixed anode plate (5) is connected to the bottom of the housing (9), the floating cathode (6) is arranged on the upper part of the fixed anode plate (5), and the top of the housing (9) is movably connected to a top cover (3).
2. The floating ocean carbon capture-conversion reactor according to claim 1, characterized in that: The fixed anode plate (5) is a platinum electrode plate.
3. The floating ocean carbon capture-conversion reactor according to claim 1, characterized in that: The floating cathode (6) comprises a catalytic layer (12), a diffusion layer (13) and a hydrophobic structure (7); The catalytic layer (12), the diffusion layer (13) and the hydrophobic structure (7) are arranged in sequence from top to bottom on a main board of the floating cathode, and the main board is connected to the inner side wall of the outer shell (9).
4. The floating ocean carbon capture-conversion reactor according to claim 3, characterized in that: The catalytic layer (12) is a single-atom catalyst mainly based on copper.
5. The floating ocean carbon capture-conversion reactor according to claim 3, characterized in that: The diffusion layer (13) is made of porous carbon material.
6. The floating ocean carbon capture-conversion reactor according to claim 3, characterized in that: The hydrophobic structure (7) is a needle-shaped structure of a hydrophobic material.
7. The floating ocean carbon capture-conversion reactor according to claim 1, characterized in that: One end of the top cover (3) is rotatably connected to the outer shell (9) via a rotating shaft (8), and the other end is provided with a fixed slot (4).
8. The floating ocean carbon capture-conversion reactor according to claim 1, characterized in that: A solar photovoltaic panel is arranged outside the top cover (3).
9. The floating ocean carbon capture-conversion reactor according to claim 1, characterized in that: A water outlet pipe (1) is arranged at the rear of the housing (9).
10. The floating ocean carbon capture-conversion reactor according to claim 1, characterized in that: The front part of the housing (9) is also provided with a front plate (10), and the front plate (10) is provided with a water inlet pipe (11).