A device for synergistically decomposing carbon dioxide using plasma and catalyst

Abstract

The invention discloses a device for cooperatively decomposing carbon dioxide by plasma and catalyst, and relates to the technical field of carbon dioxide reuse. The device comprises: a support part and a reaction part, wherein the reaction part is assembled on the support part, and a photocatalytic reaction component and a plasma catalytic reaction component are arranged in the reaction part, wherein an exchange joint is arranged between the photocatalytic reaction component and the plasma catalytic reaction component, and a polymer semipermeable membrane is also installed in the exchange joint. In the present application, carbon dioxide gas can first enter the plasma catalytic reaction component to be cracked into smaller molecules or free radicals, such as CO, O, C, etc. These intermediate products are more likely to participate in further chemical reactions, and then the intermediate products are introduced into the photocatalytic reaction component for further conversion reaction, thereby improving the conversion efficiency of carbon dioxide, and the photocatalyst will not be directly placed in the plasma catalytic reaction component, and can be used for a long time with high efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon dioxide reuse, and more specifically, to a device for cooperatively decomposing carbon dioxide using plasma and a catalyst. Background Art

[0002] With the progress of human life, a large amount of non-renewable energy is used, mainly coal, oil, etc., and a large amount of greenhouse gases are produced during the use. Among them, carbon dioxide is the main greenhouse gas, and the content of carbon dioxide in the atmosphere has increased significantly in recent years. Therefore, how to effectively control the concentration of carbon dioxide in the atmosphere has become a common problem faced by the world.

[0003] With reference to the Chinese patent case with application publication number CN113975946A, a method for synergistic conversion of carbon dioxide by plasma and photocatalyst is disclosed, which belongs to the field of comprehensive utilization of carbon dioxide. The method is mainly: in a plasma catalytic device with a plasma power supply power of 60W, 0.01g of photocatalyst is added, carbon dioxide is passed at a flow rate of 50mL / min, and a plasma discharge reaction is performed for 10min to reduce carbon dioxide to carbon monoxide. The advantages of the present invention are: simple process, easy operation, low cost, and beneficial to industrial production, but in this scheme, the plasma catalytic device and the photocatalyst coexist in a reactor, and the photocatalyst used is mainly perovskite and metal oxide. When the plasma catalytic device is working, the metal oxide catalyst may suffer structural damage due to long-term high temperature, strong electron flow or free radical attack, resulting in decreased activity or inactivation, and it is also possible to form sediments or impurities on the catalyst surface, and these pollutants may cover the active sites, thereby affecting the performance of the catalyst, resulting in a reduced service life of the photocatalyst, and frequent replacement is required to increase the cost of use.

[0004] Based on the above problems, we provide a device for synergistically decomposing carbon dioxide by plasma and catalyst. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a device for cooperatively decomposing carbon dioxide by using plasma and catalyst.

[0006] The present invention provides a plasma and catalyst synergistic decomposition device for carbon dioxide using the following technical solutions:

[0007] A device for decomposing carbon dioxide by synergistically using plasma and catalyst, comprising:

[0008] The support part and the reaction part, the reaction part is assembled on the support, and the reaction part is provided with a photocatalytic reaction component and a plasma catalytic reaction component:

[0009] The photocatalytic reaction assembly includes a photocatalytic reactor, a metal crucible is inserted in the photocatalytic reactor, a porous foam is arranged in the metal crucible, and the porous foam is filled with a photocatalyst. A discharge pipe is also connected to the bottom of the front end of the photocatalytic reactor, and a control valve is installed on the discharge pipe;

[0010] The plasma catalytic reaction assembly comprises a plasma catalytic reaction kettle, a tail cover is arranged on the tail end of the plasma catalytic reaction kettle, a power transmission line and a gas delivery pipe are connected to the tail cover, a safety valve is installed on the gas delivery pipe, and a plasma generator is installed in the plasma catalytic reaction kettle;

[0011] Among them, an exchange joint is arranged between the photocatalytic reaction component and the plasma catalytic reaction component, the exchange joint is sealedly connected with the photocatalytic reaction kettle and the plasma catalytic reaction kettle, and a polymer semipermeable membrane is also installed in the exchange joint.

[0012] Preferably, a kettle mouth ring is also installed on the front end of the photocatalytic reaction kettle, and a kettle cover is installed on the inner thread of the kettle mouth ring. The kettle cover has a through hole in the middle and a window piece is arranged inside. The window piece is a sapphire window piece. A window pressure plate is also installed at the front end of the kettle cover, and the kettle cover and the kettle mouth ring are thickened.

[0013] Preferably, the pores inside the porous foam are arranged to be sparse at the front and dense at the back, and the photocatalyst filled inside the porous foam is a copper oxide catalyst or a palladium-copper oxide composite catalyst.

[0014] Preferably, the plasma generator comprises an electrode ring and an electrode rod, the electrode ring and the electrode rod do not contact each other, and the positive and negative poles of the power transmission line in the tail cover are electrically connected to the electrode ring and the electrode rod respectively.

[0015] Preferably, the plasma generator further comprises a plurality of positive induction rods (a) uniformly arranged on the electrode ring and a plurality of negative induction rods (a) uniformly arranged on the outer surface of the electrode rods, and the positive induction rods (a) correspond to the negative induction rods (a) one by one.

[0016] Preferably, the plasma generator further comprises a positive electrode spiral electric rod (b) spirally connected to the electrode ring and a negative electrode spiral electric rod (b) spirally connected to the electrode rod, wherein the trajectories of the positive electrode spiral electric rod (b) correspond to those of the negative electrode spiral electric rod (b) and the number of spiral turns is at least one.

[0017] Preferably, the bracket portion includes a fixed table plate and a movable table plate, and four adjusting screws are arranged through the fixed table plate and the movable table plate. The adjusting screws are arranged at the corner position of the fixed table plate or the movable table plate, and a plurality of positioning nuts are threadedly mounted on the adjusting screws. The positioning nuts are distributed on both sides of the fixed table plate or the movable table plate, and a placement hole is also provided at the center of the movable table plate for installing the photocatalytic reactor.

[0018] Preferably, a kettle body bracket is installed at the front end of the photocatalytic reactor, a bolt member is penetrated at the corner of the kettle body bracket, and a positioning hole for the bolt member to pass through is opened on the movable table.

[0019] Preferably, the bracket part also includes a lifting platform, a hinge seat is installed on the top of the lifting platform, a focusing disk is installed on the hinge seat, and four fixing rods extend from the edge of the focusing disk toward the center, and the fixing rods are connected to the fixed platform.

[0020] In summary, the present invention includes the following beneficial technical effects:

[0021] 1. The reaction part in the present application includes a photocatalytic reaction component and a plasma catalytic reaction component. The carbon dioxide gas can first enter the plasma catalytic reaction component. The high-energy electrons in the plasma can collide with the carbon dioxide molecules to break them into smaller molecules or free radicals, such as CO, O, C, etc. These intermediates are more likely to participate in further chemical reactions. The intermediates are then introduced into the photocatalytic reaction component for further conversion reactions, thereby improving the conversion efficiency of carbon dioxide. In addition, the photocatalyst will not be directly placed in the plasma catalytic reaction component, so it can be used for a long time and is relatively efficient.

[0022] 2. In the present application, the plasma catalytic reaction component and the photocatalytic reaction component are connected through an exchange joint, and the polymer semipermeable membrane arranged in the exchange joint can filter the gas. When the carbon dioxide undergoes the catalytic reaction of the plasma, it will be broken down into smaller molecules or free radicals, such as CO, O, C, etc. These intermediate products can pass through the polymer semipermeable membrane and enter the photocatalytic reaction component for further conversion reaction due to their small molecular structure. However, the hydrocarbons or alcohols generated after the reaction have a large molecular structure and cannot pass through the polymer semipermeable membrane, so they will accumulate in the photocatalytic reactor and the products will be discharged through the discharge pipe.

[0023] 3. The support part in the present application also includes a lifting platform, and the focusing disk is installed on the lifting platform through a hinged seat. The overall inclination angle of the support part can be adjusted, and the photocatalytic reactor can be kept at a certain inclination angle. When hydrocarbons or alcohols are generated, they will flow to the discharge pipe at the front end of the photocatalytic reactor, and finally be discharged outward through the discharge pipe, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a schematic diagram of the support part and the reaction part of the present invention;

[0026] Figure 3 It is a decomposition schematic diagram of the reaction part structure of the present invention;

[0027] Figure 4 It is an exploded schematic diagram of the internal structure of the kettle cover of the present invention;

[0028] Figure 5 is a cross-sectional schematic diagram of the exchange joint structure of the present invention;

[0029] Figure 6 is a schematic diagram of a plasma generator of the present invention;

[0030] Figure 7 is another schematic diagram of the plasma generator of the present invention;

[0031] Figure 8 The present invention Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0032] Description of reference numerals: 1. bracket; 11. adjusting screw; 1101. positioning nut; 12. fixed platen; 13. movable platen; 14. focusing disc; 15. hinged seat; 16. lifting platform; 2. reaction part; 21. photocatalytic reaction component; 2101. photocatalytic reaction kettle; 2102. metal crucible; 2103. porous foam; 2104. discharge pipe; 2105. control valve; 2106. kettle bracket; 2107. bolt; 2108. kettle mouth ring; 2109. Kettle cover; 2110, window piece; 2111, window pressure plate; 22, plasma catalytic reaction component; 2201, plasma catalytic reaction kettle; 2202, tail cover; 2203, power transmission line; 2204, gas transmission pipe; 2205, electrode ring; 2205a, positive electrode induction rod; 2205b, positive electrode spiral rod; 2206, electrode rod; 2206a, negative electrode induction rod; 2206b, negative electrode spiral rod; 23, exchange connector; 2301, polymer semipermeable membrane. DETAILED DESCRIPTION

[0033] The following is combined with Figures 1 to 8 The present invention is described in further detail.

[0034] It should be noted that the drawings are schematic and not to scale. For the sake of clarity and convenience, the relative sizes and proportions of the parts shown in the drawings are exaggerated or reduced in size, and any size is only illustrative and not restrictive. In addition, the same reference symbol is used for the same structure, element or accessory appearing in more than two figures to reflect similar features.

[0035] Embodiment 1

[0036] The present invention discloses a device for cooperatively decomposing carbon dioxide using plasma and catalyst. Figures 1 to 8A plasma and catalyst synergistically decomposes carbon dioxide, comprising a support part 1 and a reaction part 2, wherein the reaction part 2 is assembled on the support part 1, and a photocatalytic reaction component 21 and a plasma catalytic reaction component 22 are arranged in the reaction part 2, wherein an exchange joint 23 is arranged between the photocatalytic reaction component 21 and the plasma catalytic reaction component 22, and the exchange joint 23 is sealedly connected with a photocatalytic reaction kettle 2101 and a plasma catalytic reaction kettle 2201, and a polymer semipermeable membrane 2301 is also installed in the exchange joint 23, and the polymer semipermeable membrane 2301 is made of polydimethylsiloxane material, which can be used for The gas is filtered, and when carbon dioxide undergoes a catalytic reaction of plasma, it will be broken down into smaller molecules or free radicals, such as CO, O, C, etc. These intermediate products can pass through the polymer semipermeable membrane 2301 to enter the photocatalytic reaction component 21 for further conversion reaction due to their smaller molecular structure. The hydrocarbons or alcohols generated after the reaction have larger molecular structures and cannot pass through the polymer semipermeable membrane 2301, and will accumulate in the photocatalytic reactor 2101. The products can be discharged through the discharge pipe 2104, which is more convenient, and the photocatalyst will not be directly placed in the plasma catalytic reaction component 22, so it can be used for a long time and is more efficient.

[0037] Reference Figure 3 , 48. The photocatalytic reaction component 21 includes a photocatalytic reactor 2101, a metal crucible 2102 and a discharge pipe 2104. The metal crucible 2102 is inserted into the photocatalytic reactor 2101, and the front and rear openings of the metal crucible 2102 are set. A porous foam 2103 is also arranged in the metal crucible 2102. The foam pores inside the porous foam 2103 are arranged in a sparse front and dense back manner. The porous foam 2103 is filled with a photocatalyst. The photocatalyst filled in the porous foam 2103 is a copper oxide catalyst. The discharge pipe 2104 is installed on the bottom of the front end of the photocatalytic reactor 2101, and a control valve 2105 is installed on the discharge pipe 2104. Specifically, a kettle mouth ring 2108 is also installed on the front end of the photocatalytic reactor 2101. The kettle mouth ring 2108 is threaded with a kettle cover 2109. The kettle cover 2109 is threaded with a kettle cover 2109. 09 has a through hole in the middle and a window piece 2110 is arranged inside. The window piece 2110 is made of sapphire. A window pressure plate 2111 is also installed at the front end of the kettle cover 2109. The kettle cover 2109 and the kettle mouth ring 2108 are thickened. The window plate 2111 can be conveniently replaced by the window pressure plate 2111. When the window piece 2110 is stained, it can be removed for cleaning. The sapphire view film can adapt to high temperature and high pressure environment, and it is convenient for strong light to pass through for catalytic reaction. The photocatalyst filled in the porous foam 2103 can promote the conversion of more carbon dioxide into hydrocarbon compounds. The porous foam 2103 adopts a sparse front and dense back structure arrangement to enhance the structural strength of the porous foam, and more photocatalysts can be filled in the loose gaps to increase the contact area between the photocatalyst and carbon dioxide and enhance the reaction effect.

[0038] Reference Figure 3 , 6The plasma catalytic reaction assembly 22 includes a plasma catalytic reaction kettle 2201 and a tail cover 2202. The tail cover 2202 is connected with a power transmission line 2203 and a gas delivery pipe 2204. A safety valve is installed on the gas delivery pipe 2204. A plasma generator is installed in the plasma catalytic reaction kettle 2201. The plasma generator includes an electrode ring 2205 and an electrode rod 2206. The electrode ring 2205 and the electrode rod 2206 do not contact each other, and the positive and negative electrodes of the power transmission line 2203 in the tail cover 2202 are electrically connected to the electrode ring 2205 and the electrode rod 2206 respectively. The plasma generator also includes a uniformly arranged There are multiple positive induction rods 2205a on the electrode ring 2205 and multiple negative induction rods 2206a evenly arranged on the outer surface of the electrode rod 2206, and the positive induction rods 2205a correspond to the negative induction rods 2206a one by one. Specifically, multiple positive induction rods 2205a are arranged on the electrode ring 2205, and multiple negative induction rods 2206a are arranged on the electrode rod 2206. The positive induction rods 2205a correspond to the negative induction rods 2206a one by one, which can accelerate the generation of plasma. After the carbon dioxide gas is introduced, they can fully contact with the carbon dioxide gas for catalytic cracking.

[0039] Embodiment 2

[0040] Reference Figure 3 , 4 8. The photocatalytic reaction component 21 includes a photocatalytic reactor 2101, a metal crucible 2102 and a discharge pipe 2104. The metal crucible 2102 is inserted into the photocatalytic reactor 2101, and the front and rear openings of the metal crucible 2102 are set. A porous foam 2103 is also set in the metal crucible 2102. The foam pores inside the porous foam 2103 are set in a sparse front and dense back manner. The porous foam 2103 is filled with a photocatalyst. The photocatalyst filled in the porous foam 2103 is a palladium-copper oxide composite catalyst. The discharge pipe 2104 is installed on the bottom of the front end of the photocatalytic reactor 2101, and a control valve 2105 is installed on the discharge pipe 2104. Specifically, the palladium-copper oxide composite catalyst is used as the photocatalyst, which can promote the conversion of more carbon dioxide gas into alcohol compounds, and with the cooperation of the exchange joint 23, the photocatalyst will not be directly placed in the plasma catalytic reaction component 22, and can be used for a long time and is relatively efficient; refer to Figure 3 , 7The plasma catalytic reaction assembly 22 includes a plasma catalytic reaction kettle 2201 and a tail cover 2202. The tail cover 2202 is connected with a power transmission line 2203 and a gas delivery pipe 2204. A safety valve is installed on the gas delivery pipe 2204. A plasma generator is installed in the plasma catalytic reaction kettle 2201. The plasma generator includes an electrode ring 2205 and an electrode rod 2206. The electrode ring 2205 and the electrode rod 2206 do not contact each other, and the positive and negative poles of the power transmission line 2203 in the tail cover 2202 are electrically connected to the electrode ring 2205 and the electrode rod 2206 respectively. The plasma generator also includes a spirally connected The positive spiral electric rod 2205b is connected to the electrode ring 2205, and the negative spiral electric rod 2206b is spirally connected to the electrode rod 2206. The trajectories of the positive spiral electric rod 2205b and the negative spiral electric rod 2206b correspond to each other and the number of spiral turns is at least one. Similarly, in order to ensure the acceleration of plasma generation, after the introduction of carbon dioxide gas, it can fully contact with the carbon dioxide gas for catalytic cracking. The positive spiral electric rod 2205b and the negative spiral electric rod 2206b are respectively arranged on the electrode ring 2205 and the electrode rod 2206, which can increase the area of ​​plasma generation, thereby accelerating the generation of plasma.

[0041] Embodiment 3

[0042] Reference Figure 1 , 2 On the basis of the first and second embodiments, the bracket part 1 includes a fixed platform 12 and a movable platform 13, and four adjusting screws 11 are arranged through the fixed platform 12 and the movable platform 13. The adjusting screws 11 are arranged at the angle position of the fixed platform 12 and the movable platform 13, and a plurality of positioning nuts 1101 are threadedly mounted on the adjusting screws 11. The positioning nuts 1101 are distributed on both sides of the fixed platform 12 or the movable platform 13. A placement hole is also provided at the center of the movable platform 13 for installing the photocatalytic reactor 2101. The bracket part 1 also includes a lifting platform 16, and a hinged seat 15 is installed on the top of the lifting platform 16. A focusing disk 14 is installed on the hinged seat 15, and four fixing rods extend toward the center from the edge of the focusing disk 14, and the fixing rods are connected to the fixed platform 12.

[0043] During operation, the reaction unit 2 can be installed on the movable table 13. By installing the kettle body bracket 2106 at the front end of the photocatalytic reactor 2101, a bolt 2107 is passed through the corner of the kettle body bracket 2106, and a positioning hole for the bolt 2107 to pass through is opened on the movable table 13. The reaction unit 2 can be conveniently fixed on the movable table 13. Through the cooperation of the positioning nut 1101, the position of the movable table 13 can be adjusted so that the light reflected from the focusing disk 14 can be concentrated and irradiated on the window sheet 2110. In addition, through the cooperation of the hinge seat 15 and the lifting platform seat 16, the inclination angle of the bracket part 1 can also be adjusted, and the photocatalytic reactor 2101 can be kept at a certain inclination angle. When hydrocarbons or alcohols are generated, they will flow to the discharge pipe 2104 at the front end of the photocatalytic reactor 2101, and finally be discharged outward through the discharge pipe 2104, which is more convenient.

[0044] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0045] The implementation principle of a plasma and catalyst synergistic decomposition device of carbon dioxide in an embodiment of the present invention is as follows: when in use, first install the lifting platform 16 outdoors to keep it exposed to sunlight, adjust the angle of the focusing disk 14, and keep the focusing disk 14 facing the sunlight, then the photocatalytic reactor 2101 and the plasma catalytic reactor 2201 can be docked together through the exchange joint 23, and the front end of the photocatalytic reactor 2101 is inserted into the placement hole in the center of the movable platform 13, keep the reactor body bracket 2106 attached to the front side of the movable platform 13, and fix it by inserting the bolt member 2107 into the positioning hole on the movable platform 13. In addition, due to the cooperation of the positioning nut 1101, the position of the movable platform 13 on the adjusting screw 11 can be adjusted, so as to keep the front end of the photocatalytic reactor 2101 able to focus light stably; then, carbon dioxide gas can be transported to the plasma catalytic reactor 2201 through the gas delivery pipe 2204. In order to enhance the conversion efficiency of carbon dioxide gas, a mixed gas of carbon dioxide and hydrogen can also be introduced, and the plasma generator can be powered through the delivery line 2203, so that the electrode ring 2205 and the electrode rod 2206 have positive and negative charges respectively. When carbon dioxide undergoes the catalytic reaction of the plasma, it will be broken down into smaller molecules. ions or free radicals, such as CO, O, C, etc., and a polymer semipermeable membrane 2301 is also provided in the exchange joint 23, and the polymer semipermeable membrane 2301 can filter the gas. The small molecules or free radicals generated by the decomposition of carbon dioxide can pass through the polymer semipermeable membrane 2301 due to their small molecular structure and enter the photocatalytic reactor 2101 for further conversion reaction. However, the hydrocarbons or alcohols generated after the reaction in the photocatalytic reactor 2101 have large molecular structures and cannot pass through the polymer semipermeable membrane, and will accumulate in the photocatalytic reactor 2101, and the products will be discharged through the discharge pipe; and the photocatalytic reaction component 21 adopts a sapphire viewing plate, which can be suitable for In response to the high temperature and high pressure environment, it is convenient for strong light to pass through for catalytic reaction. Strong light can enter the photocatalytic reactor 2101 through the window piece 2110. The porous foam 2103 is filled with photocatalysts. Under the irradiation of strong light, carbon dioxide gas molecules can be activated to convert them into hydrocarbon or alcohol compounds. With the cooperation of the articulated seat 15 and the lifting platform seat 16, the inclination angle of the bracket part 1 can also be adjusted, and the photocatalytic reactor 2101 can be kept at a certain inclination angle. When hydrocarbons or alcohols are generated, they will flow to the discharge pipe 2104 at the front end of the photocatalytic reactor 2101, and finally be discharged outward through the discharge pipe 2104, which is more convenient.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for decomposing carbon dioxide by synergistic use of plasma and catalyst, It is characterized in that The invention comprises a support part (1) and a reaction part (2), wherein the reaction part (2) is assembled on the support part (1), and a photocatalytic reaction component (21) and a plasma catalytic reaction component (22) are arranged in the reaction part (2): The photocatalytic reaction assembly (21) comprises a photocatalytic reaction kettle (2101), a metal crucible (2102) is inserted into the photocatalytic reaction kettle (2101), a porous foam (2103) is arranged in the metal crucible (2102), and the porous foam (2103) is filled with a photocatalyst; a discharge pipe (2104) is also connected to the bottom of the front end of the photocatalytic reaction kettle (2101), and a control valve (2105) is installed on the discharge pipe (2104); The plasma catalytic reaction assembly (22) comprises a plasma catalytic reaction kettle (2201); a tail cover (2202) is arranged on the tail end of the plasma catalytic reaction kettle (2201); a power transmission line (2203) and a gas delivery pipe (2204) are connected to the tail cover (2202); a safety valve is installed on the gas delivery pipe (2204); and a plasma generator is installed in the plasma catalytic reaction kettle (2201); An exchange joint (23) is provided between the photocatalytic reaction component (21) and the plasma catalytic reaction component (22); a sealed connection is maintained between the exchange joint (23) and the photocatalytic reaction kettle (2101) and the plasma catalytic reaction kettle (2201); and a polymer semipermeable membrane (2301) is also installed in the exchange joint (23).

2. The plasma and catalyst synergistically decompose carbon dioxide device according to claim 1, Features: The front end of the photocatalytic reaction kettle (2101) is also equipped with a kettle mouth ring (2108), and the kettle mouth ring (2108) is internally threaded with a kettle cover (2109). The kettle cover (2109) has a through hole in the middle and is provided with a window plate (2110) inside. The window plate (2110) is a sapphire window plate. A window pressure plate (2111) is also installed at the front end of the kettle cover (2109). The kettle cover (2109) and the kettle mouth ring (2108) are thickened.

3. The plasma and catalyst synergistic decomposition device of carbon dioxide according to claim 1, Features: The foam pores inside the porous foam (2103) are arranged to be sparse at the front and dense at the back, and the photocatalyst filled inside the porous foam (2103) is a copper oxide catalyst or a palladium-copper oxide composite catalyst.

4. The plasma and catalyst synergistic decomposition device of carbon dioxide according to claim 1, Features: The plasma generator comprises an electrode ring (2205) and an electrode rod (2206), the electrode ring (2205) and the electrode rod (2206) do not contact each other, and the positive and negative poles of the power transmission line (2203) in the tail cover (2202) are electrically connected to the electrode ring (2205) and the electrode rod (2206) respectively.

5. The device for decomposing carbon dioxide by synergistically combining plasma and catalyst according to claim 4, Features: The plasma generator further comprises a plurality of positive electrode induction rods (2205a) uniformly arranged on the electrode ring (2205) and a plurality of negative electrode induction rods (2206a) uniformly arranged on the outer surface of the electrode rod (2206), the positive electrode induction rods (2205a) corresponding to the negative electrode induction rods (2206a) one by one.

6. The device for decomposing carbon dioxide by plasma and catalyst according to claim 4, Features: The plasma generator also includes a positive electrode spiral electric rod (2205b) spirally connected to the electrode ring (2205) and a negative electrode spiral electric rod (2206b) spirally connected to the electrode rod (2206), wherein the positive electrode spiral electric rod (2205b) and the negative electrode spiral electric rod (2206b) have corresponding trajectories and have at least one spiral turn.

7. The device for decomposing carbon dioxide by synergistically combining plasma and catalyst according to claim 1, Features: The support portion (1) comprises a fixed platform (12) and a movable platform (13), four adjusting screws (11) are provided through the fixed platform (12) and the movable platform (13), the adjusting screws (11) are provided at the angled positions of the fixed platform (12) and the movable platform (13), and a plurality of positioning nuts (1101) are threadedly mounted on the adjusting screws (11), the positioning nuts (1101) are arranged on both sides of the fixed platform (12) or the movable platform (13), and a placement hole is provided at the center of the movable platform (13) for installing the photocatalytic reactor (2101).

8. The device for decomposing carbon dioxide by synergistically combining plasma and catalyst according to claim 7, Features: A kettle body bracket (2106) is also installed at the front end of the photocatalytic reaction kettle (2101), a bolt member (2107) is also penetrated at the corner of the kettle body bracket (2106), and a positioning hole for the bolt member (2107) to pass through is opened on the movable table (13).

9. The device for decomposing carbon dioxide by synergistic plasma and catalyst according to claim 7, Features: The support portion (1) further comprises a lifting platform (16), a hinge seat (15) being mounted on the top of the lifting platform (16), a focusing disk (14) being mounted on the hinge seat (15), and four fixing rods extending from the edge of the focusing disk (14) towards the center, the fixing rods being connected to the fixing platform (12).

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