An extraterrestrial carbon dioxide reduction experimental device

Abstract

The present invention belongs to the field of experimental devices and relates to an extraterrestrial carbon dioxide reduction experimental device, comprising an anode end plate, an intermediate component, and a cathode end plate arranged in sequence; the anode end plate, the intermediate component, and the cathode end plate are secured by a self-locking bolt assembly; an anode membrane electrode is disposed between the anode end plate and the intermediate component; a cathode membrane electrode is disposed between the cathode end plate and the intermediate component; and the anode membrane electrode and the cathode membrane electrode are secured by a membrane electrode support plate. The device is easy to assemble and disassemble, highly integrated, and can effectively recycle carbon dioxide to produce oxygen in extraterrestrial space.

Description

Technical Field

[0001] The present invention belongs to the field of experimental devices and relates to an extraterrestrial carbon dioxide reduction experimental device. In extraterrestrial space, electric energy is loaded on the carbon dioxide reduction experimental device, and carbon dioxide is reduced to hydrocarbons and releases oxygen under the action of a catalyst in a solution. Background Art

[0002] The carbon dioxide reduction reaction is an electrochemical reaction. Because humans need large quantities of oxygen for life and experiments in outer space and on planetary surfaces, transporting oxygen from Earth is prohibitively expensive. One way to obtain oxygen is through carbon dioxide resource recycling. Studying this chemical reaction requires an experimental setup. Considering experiments in outer space or on planetary surfaces, the required experimental setup should be simple to assemble and reusable.

[0003] The Sabatier method currently uses hydrogen to convert carbon dioxide into methane and water, and then uses a water electrolysis device to generate oxygen, allowing for the effective recycling of carbon dioxide. However, the Sabatier reaction device has the following disadvantages: ① The high temperature during carbon dioxide conversion, which can reach 250-450°C; ② The reactor structure is complex, requiring a supporting liquid circulation loop and components. The system has too many components, making the entire device heavy and complex to install; and ③ The experimental cost is too high. Summary of the Invention

[0004] In view of the shortcomings of the above-mentioned prior art, an extraterrestrial space carbon dioxide reduction experimental device is provided. The device of the present invention is easy to assemble and disassemble, has high integration, and can meet the needs of effectively recycling carbon dioxide to produce oxygen in extraterrestrial space.

[0005] The technical solutions provided by the present invention are as follows:

[0006] An extraterrestrial space carbon dioxide reduction experimental device comprises an anode end plate, an intermediate component and a cathode end plate arranged in sequence; the anode end plate, the intermediate component and the cathode end plate are fixed by a self-locking bolt group; an anode membrane electrode is arranged between the anode end plate and the intermediate component; a cathode membrane electrode is arranged between the cathode end plate and the intermediate component; the anode membrane electrode and the cathode membrane electrode are fixed by a membrane electrode support plate.

[0007] Furthermore, surface sealing rings are provided on both sides of the anode membrane electrode, and one side of the cathode membrane electrode is coated with a catalyst; the side of the anode membrane electrode coated with the catalyst faces the anode end plate, and the other side is attached to the membrane electrode support plate on the left side of the middle component; surface sealing rings are provided on both sides of the cathode membrane electrode, and one side of the cathode membrane electrode is coated with a catalyst; the side of the cathode membrane electrode coated with the catalyst faces the cathode end plate, and the other side is attached to the membrane electrode support plate on the right side of the middle component.

[0008] Furthermore, the anode end plate and the cathode end plate are both provided with wiring holes, flow channel grooves and internal flow channels, and a group of through holes are evenly distributed around them.

[0009] Furthermore, the middle component is provided with a liquid storage space and an internal flow channel, and a group of through holes are evenly distributed around it.

[0010] Furthermore, protruding cones are provided on the left and right sides of the middle component, and a conical sealing ring is provided on the cone; a fluid infusion hole is provided above the middle component for injecting carbon dioxide solution; and a one-way valve is provided in the fluid infusion hole.

[0011] Furthermore, a sealing groove is provided on the inner side of the cathode end plate, a wire sealing ring group and an organic glass plate are arranged in the sealing groove, and through holes are evenly distributed around the cathode end plate; the wire sealing ring group is composed of two U-shaped sealing rings; and an observation port is provided on the cathode end plate.

[0012] Furthermore, an insulating isolation plate is provided on a side of the anode end plate away from the middle component, and an insulating isolation plate is provided on a side of the cathode end plate away from the middle component.

[0013] Furthermore, an exhaust hole is provided above the anode end plate and the cathode end plate, and the exhaust hole is provided with a pressure relief valve.

[0014] Furthermore, the surfaces of the bolts in the self-locking bolt group are insulated and covered with heat shrink tubing.

[0015] The present invention also provides a method for reducing carbon dioxide in extraterrestrial space. Using the above-mentioned device, a saturated carbon dioxide solution is injected into the intermediate component. The carbon dioxide solution flows through the internal flow channel of the intermediate component to the flow channels of the anode end plate and the cathode end plate respectively. The carbon dioxide solution then impregnates the catalyst-coated parts of the anode membrane electrode and the cathode membrane electrode; the anode end plate and the cathode end plate are connected to an external DC power supply to prepare oxygen.

[0016] Beneficial effects

[0017] This experimental device has built-in liquid storage space. The carbon dioxide solution is evenly distributed to the reaction areas of the anode and cathode membrane electrodes through internal flow channels, eliminating the need for circulation components. The entire experimental device has a simple structure and is easy to assemble. The gas-liquid distribution and flow state can be observed through the observation window on the cathode end plate.

[0018] This device is easy to assemble and disassemble and has high integration. It can effectively recycle carbon dioxide to produce oxygen in extraterrestrial space and can be repeatedly disassembled and assembled by researchers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1A three-dimensional diagram of an extraterrestrial carbon dioxide reduction experimental device;

[0020] Figure 2 This is a structural diagram of an extraterrestrial carbon dioxide reduction experimental device;

[0021] Figure 3 This is an exploded diagram of the structure of an extraterrestrial carbon dioxide reduction experimental device;

[0022] Figure 4 This is a structural diagram of the anode end plate of an extraterrestrial carbon dioxide reduction experimental device.

[0023] Figure 5 This is a structural diagram of the middle component of an extraterrestrial carbon dioxide reduction experimental device.

[0024] Figure 6 This is a structural diagram of the cathode end plate of an extraterrestrial carbon dioxide reduction experimental device.

[0025] Figure numerals: 1. Self-locking bolt group; 2. Insulating isolation plate; 3. Anode end plate; 4. Pressure relief valve; 5. Face sealing ring; 6. Anode membrane electrode; 7. Membrane electrode support plate; 8. Conical sealing ring; 9. Intermediate component; 10. One-way valve; 11. Cathode membrane electrode; 12. Organic glass plate; 13. Wire sealing ring group; 14. Cathode end plate. DETAILED DESCRIPTION

[0026] Example 1

[0027] The invention relates to an extraterrestrial carbon dioxide reduction experimental device. In extraterrestrial space, electric energy is applied to the device, and carbon dioxide is reduced to hydrocarbons and releases oxygen under the action of a catalyst in a solution.

[0028] like Figures 1 to 3 As shown, an extraterrestrial carbon dioxide reduction experimental device comprises an anode end plate 3, an intermediate component 9 and a cathode end plate 14 arranged in sequence. The anode end plate 3, the intermediate component 9 and the cathode end plate 14 are fixed by a self-locking bolt group 1.

[0029] The anode end plate 3 has a wiring hole, a flow channel groove, and an internal flow channel, with a set of through holes evenly distributed around it. An anode membrane electrode 6 is disposed between the anode end plate 3 and the intermediate component 9. Face sealing rings 5 ​​are provided on both sides of the anode membrane electrode 6, and the anode membrane electrode 6 is positioned between the two face sealing rings 5. The sealing rings 5 ​​provide a seal to prevent gas and liquid leakage. One side of the anode membrane electrode 6 is coated with iridium carbon as a catalyst. During assembly, the iridium carbon-coated side of the anode membrane electrode 6 faces the anode end plate 3, while the other side abuts the membrane electrode support plate 7 on the left side of the intermediate component 9.

[0030] The intermediate component 9 has its own liquid storage space and internal flow channel, with a set of through holes evenly distributed around it. The left and right sides of the intermediate component 9 are provided with protruding cones, each of which is equipped with a conical sealing ring; two conical sealing rings 8 are respectively placed on the protruding cones on the left and right sides of the lower part of the intermediate component 9. Two membrane electrode support plates 7 are respectively tightly attached to the left and right sides of the intermediate component. A refill hole is provided above the intermediate component for injecting carbon dioxide solution; a one-way valve 10 is installed in the refill hole to prevent leakage of the carbon dioxide solution.

[0031] A cathode membrane electrode 11 is provided between the cathode end plate 14 and the intermediate component 9. The anode membrane electrode 6 and the cathode membrane electrode 11 are fixed by a membrane electrode support plate 7. The cathode end plate 14 has a wiring hole, a flow channel groove and an internal flow channel, and a group of through holes are evenly distributed around it. Surface sealing rings 5 ​​are provided on both sides of the cathode membrane electrode 11. The cathode membrane electrode 11 is placed between the two surface sealing rings 5. The sealing ring 5 plays a sealing role to prevent gas and liquid from leaking out; one side of the cathode membrane electrode 11 is coated with catalyst nano-silver powder; during assembly, the side of the cathode membrane electrode 11 coated with nano-silver powder faces the cathode end plate 14, and the other side is attached to the membrane electrode support plate 7 on the right side of the intermediate component 9.

[0032] The cathode end plate 14 has a sealing groove on its inner side, within which a wire sealing ring assembly 13 and a plexiglass plate 12 are positioned. The wire sealing ring assembly 13 is adhered to the sealing groove in the center of the cathode end plate 14 using silicone, and the plexiglass plate 12 is then placed flat against the wire sealing ring assembly 13. Through holes are evenly distributed around the cathode end plate 14. The wire sealing ring assembly 13 is composed of two U-shaped sealing rings, which provide a seal to prevent gas and liquid leakage.

[0033] An insulating isolation plate 2 is provided on the left side of the anode end plate 3, and an insulating isolation plate 2 is provided on the right side of the cathode end plate 14. An observation port is provided on the cathode end plate. Vents are provided above the anode end plate 3 and the cathode end plate 14, each of which is equipped with a pressure relief valve 4.

[0034] The surface of the bolts in the self-locking bolt group 1 needs to be insulated, and a layer of heat shrink tubing can be applied.

[0035] according to Figures 1 to 6 As shown, the bolts in the self-locking bolt group 1 are passed through the cathode end plate 14, the middle component 9, and the anode end plate 3 from the right in sequence, and then the self-locking nuts in the self-locking bolt group 1 are locked to lock the experimental device.

[0036] A saturated carbon dioxide solution is injected into the intermediate component 9 through the one-way valve 10. The carbon dioxide solution can flow into the flow channels of the anode end plate 3 and the cathode end plate 14 respectively through the internal flow channels of the intermediate component 9. The carbon dioxide solution will impregnate the catalyst-coated parts of the anode membrane electrode 6 and the cathode membrane electrode 11.

[0037] Working Principle: Connect the anode end plate 3 and cathode end plate 14 of the CO2 reduction experimental device to an external DC power supply to generate oxygen. By connecting relevant experimental instruments and setting experimental parameters, data such as the CO2 reaction rate and oxygen production can be measured. The reaction process can be observed through the observation port on the cathode end plate 14.

Claims

1. A method for reducing carbon dioxide in extraterrestrial space, characterized in that: An extraterrestrial carbon dioxide reduction experimental device is used, which includes an anode end plate, an intermediate component, and a cathode end plate arranged in sequence; the anode end plate, the intermediate component, and the cathode end plate are fixed by a self-locking bolt group; an anode membrane electrode is provided between the anode end plate and the intermediate component; a cathode membrane electrode is provided between the cathode end plate and the intermediate component; the anode membrane electrode and the cathode membrane electrode are fixed by a membrane electrode support plate; Surface sealing rings are provided on both sides of the anode membrane electrode, and one side of the cathode membrane electrode is coated with a catalyst; the side of the anode membrane electrode coated with the catalyst faces the anode end plate, and the other side is attached to the membrane electrode support plate on the left side of the middle component; surface sealing rings are provided on both sides of the cathode membrane electrode, and one side of the cathode membrane electrode is coated with a catalyst; the side of the cathode membrane electrode coated with the catalyst faces the cathode end plate, and the other side is attached to the membrane electrode support plate on the right side of the middle component; the middle component is provided with a liquid storage space and an internal flow channel, and a group of through holes are evenly distributed around it; protruding cones are provided on the left and right sides of the middle component, and a conical sealing ring is provided on the cone; a liquid infusion hole is provided above the middle component for injecting carbon dioxide solution; a one-way valve is provided in the liquid infusion hole; The extraterrestrial carbon dioxide reduction method includes: injecting a saturated carbon dioxide solution into an intermediate component, the carbon dioxide solution flowing through the internal flow channel of the intermediate component to the flow channels of the anode end plate and the cathode end plate respectively, and then impregnating the catalyst-coated parts of the anode membrane electrode and the cathode membrane electrode with the carbon dioxide solution; connecting the anode end plate and the cathode end plate to an external DC power supply to produce oxygen.

2. The method for reducing extraterrestrial carbon dioxide according to claim 1, wherein: The anode end plate and the cathode end plate are both provided with wiring holes, flow channel grooves and internal flow channels, and a group of through holes are evenly distributed around them.

3. The method for reducing extraterrestrial carbon dioxide according to claim 1, wherein: There is a sealing groove on the inner side of the cathode end plate, in which a wire sealing ring group and an organic glass plate are arranged, and through holes are evenly distributed around the cathode end plate; the wire sealing ring group is composed of two U-shaped sealing rings; an observation port is provided on the cathode end plate.

4. The method for reducing extraterrestrial carbon dioxide according to claim 1, wherein: An insulating isolation plate is provided on the side of the anode end plate away from the middle component, and an insulating isolation plate is provided on the side of the cathode end plate away from the middle component.

5. The method for reducing extraterrestrial carbon dioxide according to claim 1, wherein: An exhaust hole is provided above the anode end plate and the cathode end plate, and a pressure relief valve is provided on the exhaust hole.

6. The method for reducing extraterrestrial carbon dioxide according to claim 1, wherein: The surfaces of the bolts in the self-locking bolt group are insulated and the outsides are covered with heat shrink tubes.

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