Electrolysis reactor

Abstract

The invention relates to the technical field of reaction equipment, and discloses an electrolysis reactor which comprises a reactor main body, an ionic membrane, an anode electrode, a gas diffusion electrode and a throttling structure, and the reactor main body is provided with an inner cavity. The ionic membrane is vertically arranged in the inner cavity, and an anode cavity is formed in one side of the ionic membrane. The anode electrode is arranged in the anode chamber, the gas diffusion electrode is vertically arranged in the inner cavity, and a cathode chamber is formed between the side, away from the anode chamber, of the ionic membrane and the gas diffusion electrode. A gas cavity is formed in one side, deviating from the ionic membrane, of the gas diffusion electrode. The throttling structure is arranged in the gas chamber and is suitable for throttling the gas, so that the pressure of the gas is gradually reduced from bottom to top, and the pressure difference between the gas in the gas chamber and the cathode electrolyte in the cathode chamber at each height in the vertical direction is smaller than the specified pressure. Therefore, the diffusion rate of the gas to the cathode chamber is prevented from being too high, the preparation rate is prevented from being influenced, and the preparation rate is always high.

Description

Technical Field

[0001] This application relates to the field of reaction equipment technology, specifically to an electrolytic reactor. Background Technology

[0002] Electrochemical preparation of chemicals is often carried out in an electrolytic reactor, which has an anode chamber, a cathode chamber, and a gas chamber. The anode chamber contains the anolyte and an anode electrode connected to the positive terminal of the power supply. The cathode chamber contains the catholyte and a cathode electrode connected to the negative terminal of the power supply. The gas chamber allows gas to flow and diffuse into the cathode chamber. When electricity is applied, cations generated by the electrolysis of the anolyte migrate through the ion-exchange membrane to the cathode electrode, gain electrons, and react with the gas diffused from the gas chamber to the cathode chamber.

[0003] In the electrochemical preparation of chemicals, an excessively high gas diffusion rate into the cathode chamber reduces the preparation rate. Since both the cathode electrolyte and the gas in the gas chamber flow upwards, and because the pressure of the liquid decreases with increasing height, the pressure difference between the gas and the cathode electrolyte gradually increases from bottom to top. Excessive pressure difference at higher positions leads to a lower preparation rate.

[0004] Therefore, how to solve or improve the problem of low preparation rate caused by excessive pressure difference between gas and cathode electrolyte at higher positions in the electrolytic reactor has become an important technical problem to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, this application provides an electrolysis reactor to solve the problem that the preparation rate is low due to the excessive pressure difference between the gas and the cathode electrolyte at a higher position in the electrolysis reactor.

[0006] In a first aspect, this application provides an electrolysis reactor, comprising: The reactor body has an internal cavity; An ion exchange membrane is vertically disposed within the inner cavity, and an anode chamber is formed on one side of the ion exchange membrane. The anode chamber is adapted to allow anolyte to flow in a vertical direction. The anode electrode is disposed within the anode chamber; A gas diffusion electrode is vertically disposed in the inner cavity. A cathode chamber is formed between the side of the ion membrane away from the anode chamber and the gas diffusion electrode. The cathode chamber is adapted to allow cathodic electrolyte to flow in the vertical direction. A gas chamber is formed on the side of the gas diffusion electrode away from the ion membrane. The gas chamber is adapted to allow gas to flow in from bottom to top. A throttling structure is provided in the gas chamber to throttle the gas so that the pressure difference between the gas and the cathode electrolyte in the vertical direction is less than a specified pressure.

[0007] In one optional implementation, the throttling structure includes: Multiple airways are arranged sequentially along the vertical direction, and adjacent airways are staggered along the vertical direction. Multiple flow channels, with two adjacent air channels connected through one of the flow channels.

[0008] In one optional implementation, the throttling structure further includes: A porous dielectric plate is disposed within the gas chamber and one side is in contact with the gas diffusion electrode; Multiple spacers are connected between the side of the porous dielectric plate away from the gas diffusion electrode and the inner wall of the gas chamber. Each spacer is arranged in sequence along the vertical direction, and a flow channel is formed between two adjacent spacers. Each spacer has a gas passage, and the gas passages on two adjacent spacers are staggered.

[0009] In one alternative implementation, it further includes: Multiple detection ports are provided, each of which is connected to the gas chamber, and the detection ports are arranged sequentially along the vertical direction.

[0010] In one optional embodiment, the reactor body further includes an inlet chamber and an outlet chamber, the inlet chamber being connected to the bottom of the gas chamber and the outlet chamber being connected to the top of the gas chamber. The electrolysis reactor further includes: An air inlet, which communicates with the air intake chamber; The air outlet is connected to the air outlet chamber.

[0011] In one optional embodiment, the reactor body includes: The anode cavity is provided with the anode chamber; The cathode cavity has the cathode chamber and is connected to the anode cavity, and the ion membrane is sandwiched between the anode cavity and the cathode cavity; The gas chamber has a gas cavity and is connected to the side of the cathode chamber opposite to the anode chamber. The gas diffusion electrode is sandwiched between the cathode chamber and the gas chamber.

[0012] In one alternative implementation, it further includes: The first washer includes a main body and a protrusion connected to the main body. A first step is provided on the gas cavity. One side of the gas diffusion electrode abuts against the gas cavity and is located inside the first step. The main body of the first washer is sandwiched between the cathode cavity and the gas cavity. The protrusion extends to the inside of the first step and abuts against the side of the gas diffusion electrode away from the gas cavity. A second step is provided on the cathode cavity. The second step abuts against the side of the gas diffusion electrode away from the gas cavity.

[0013] In one alternative implementation, it further includes: A first support member is disposed in the cathode chamber and connected to the cathode chamber body. The first support member is attached to the side of the gas diffusion electrode opposite to the gas chamber. The second support is disposed in the cathode cavity and connected to the cathode cavity body. The anode electrode and the second support are respectively abutted against the two sides of the ion membrane.

[0014] In one alternative implementation, it further includes: The second gasket is formed by pressing one side of the ion membrane between it and the cathode cavity, and another second gasket is formed by pressing the other side of the ion membrane between it and the anode cavity.

[0015] In one alternative implementation, it further includes: A fixed bracket is connected to the reactor body and is used to fix the reactor body.

[0016] This application provides an electrolysis reactor in which a throttling structure is installed in the gas chamber. As the gas flows upwards within the gas chamber, the throttling structure effectively restricts the flow, causing the gas pressure to gradually decrease from bottom to top. This ensures that the pressure difference between the gas in the gas chamber and the cathode electrolyte in the cathode chamber is less than a specified pressure at all vertical heights. This avoids an excessively large pressure difference between the gas in the gas chamber and the cathode electrolyte in the cathode chamber, thus preventing excessively rapid gas diffusion into the cathode chamber and consequently preventing any impact on the preparation rate, resulting in a consistently high preparation rate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this application, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the structure of an electrolytic reactor according to an embodiment of this application; Figure 2 This is a cross-sectional schematic diagram of an electrolytic reactor according to an embodiment of this application; Figure 3 for Figure 2 A magnified view of part A in the diagram; Figure 4 for Figure 2 A magnified view of part B in the diagram; Figure 5 This is a schematic diagram of the gas chamber structure of an electrolysis reactor according to an embodiment of this application; Figure 6 for Figure 5 A magnified view of part of C; Figure 7 for Figure 5 A magnified view of part of D; Figure 8 This is a schematic diagram of the gas outlet structure of an electrolytic reactor according to an embodiment of this application; Figure 9 This is a schematic diagram of the air inlet structure of an electrolytic reactor according to an embodiment of this application; Figure 10 This is a schematic diagram of the anode chamber structure of an electrolytic reactor according to an embodiment of this application; Figure 11 This is a schematic diagram of the cathode chamber structure of an electrolytic reactor according to an embodiment of this application.

[0019] Explanation of reference numerals in the attached figures: 1. Ion exchange membrane; 2. Anode electrode; 3. Reactor body; 301. Anode chamber; 302. Cathode chamber; 303. Gas chamber; 31. Anode body; 32. Cathode body; 321. Second step; 33. Gas chamber; 331. Inlet chamber; 332. Outlet chamber; 333. First step; 4. Gas diffusion electrode; 5. Detection port; 6. Inlet; 7. Outlet; 8. Second gasket; 9. First support; 10. Second support; 11. First gasket; 111. Body; 112. Protrusion; 12. Fixing bracket; 13. Anode inlet; 14. Anode outlet; 15. Cathode inlet; 16. Cathode outlet; 17. Gas channel; 18. Flow channel; 19. Porous dielectric plate; 20. Spacer. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] The following is combined Figures 1 to 11 This describes an embodiment of the present application.

[0022] According to embodiments of this application, in one aspect, an electrolysis reactor is provided, such as... Figures 1 to 11 As shown, it includes the reactor body 3, ion membrane 1, anode electrode 2, gas diffusion electrode 4, and throttling structure.

[0023] The reactor body 3 has an inner cavity. An ion-exchange membrane 1 is vertically disposed within the inner cavity and connected to the reactor body 3. The ion-exchange membrane 1 has a first side and a second side. The first side of the ion-exchange membrane 1 forms an anode chamber 301, which is adapted to allow vertical flow of the anolyte along the anolyte. An anode electrode 2 is disposed within the anode chamber 301, and the anolyte is electrolyzed after energization.

[0024] A gas diffusion electrode 4 is vertically disposed within the inner cavity and connected to the reactor body 3. A cathode chamber 302 is formed between the second side of the ion membrane 1, i.e., the side facing away from the anode chamber 301, and the gas diffusion electrode 4. The cathode chamber 302 allows the cathode electrolyte to flow vertically. A gas chamber 303 is formed on the side of the gas diffusion electrode 4 facing away from the ion membrane 1, and is suitable for gas to flow upwards. A throttling structure is disposed within the gas chamber 303, which is adapted to throttle the gas flow so that the pressure gradually decreases as the gas flows upwards. This ensures that the pressure difference between the gas in the gas chamber 303 and the cathode electrolyte in the cathode chamber 302 at all heights along the vertical direction is less than a specified pressure. This prevents an excessively large pressure difference between the gas in the gas chamber 303 and the cathode electrolyte in the cathode chamber 302, thus preventing the gas diffusion rate into the cathode chamber 302 from being too fast, thereby avoiding any impact on the preparation rate and ensuring a consistently high preparation rate.

[0025] The gas diffusion electrode 4 is a specially designed porous membrane electrode with characteristics such as porosity, water resistance, conductivity, high active surface area, and high catalytic activity, and is widely used in the field of electrochemistry. The gas diffusion electrode 4 typically consists of a gas diffusion layer, a current collector layer, and a catalytic layer. The gas diffusion layer allows gas to pass through smoothly while preventing electrolyte leakage. The current collector layer collects electrons and conducts current, while also supporting the electrode structure. The catalytic layer provides active sites for electrochemical reactions, promoting the reduction reaction between the gas and the electrolyte.

[0026] Specifically, when using this electrolytic reactor to prepare formic acid from carbon dioxide, the gas introduced into the gas chamber 303 is carbon dioxide, and both the anolyte and the catholyte are aqueous solutions. The anolyte 2 is connected to the positive terminal of the power supply, and the gas diffusion electrode 4 is connected to the negative terminal of the power supply.

[0027] After energization, the water in the anode chamber 301 is electrolyzed, and the reaction equation is as follows:

[0028] When carbon dioxide flows through the gas chamber 303, it diffuses into the cathode chamber 302 via the gas diffusion electrode 4. At the same time, electrons move toward the gas diffusion electrode 4, and the following reaction occurs:

[0029] This allows carbon dioxide to be converted into formic acid, enabling the reuse of emitted carbon dioxide and reducing carbon emissions.

[0030] Because the throttling structure is located in the gas chamber 303, the carbon dioxide flow within the gas chamber 303 is throttled. This causes the pressure of the carbon dioxide to gradually decrease as it flows upwards within the gas chamber 303. Since the pressure of the water in the cathode chamber 302 also gradually decreases upwards, the pressure difference between the carbon dioxide and the water in the cathode chamber 302 at all vertical heights is less than a specified pressure. This prevents the gas from diffusing too quickly into the cathode chamber 302, thus avoiding any impact on the preparation rate and ensuring a consistently high formic acid preparation rate.

[0031] In one embodiment, such as Figures 5 to 7 As shown, the throttling structure includes multiple air passages 17 and flow channels 18, with each air passage 17 arranged sequentially along the vertical direction. Along the vertical direction, adjacent air passages 17 are staggered. Adjacent air passages 17 are connected by a flow channel 18.

[0032] With this configuration, as gas flows through the gas chamber 303, it passes through each gas channel 17 sequentially. Because adjacent gas channels 17 are staggered, when gas flows out of one gas channel 17 and before entering another adjacent gas channel 17, it needs to pass through a flow channel 18. When gas flows from flow channel 18 into gas channel 17, it undergoes a throttling process, resulting in a pressure reduction. Since the gas channels 17 are arranged vertically, as gas flows upwards, it undergoes a throttling process each time it enters a gas channel 17 from a flow channel 18, causing the gas pressure to gradually decrease. This, combined with the decreasing liquid pressure in the cathode chamber 302 from bottom to top, ensures that the pressure difference between the gas in the gas chamber 303 and the cathode electrolyte in the cathode chamber 302 at all heights along the vertical direction is less than a specified pressure.

[0033] In one embodiment, such as Figures 5 to 8 As shown, the throttling structure also includes a porous dielectric plate 19 and multiple spacers 20. The porous dielectric plate 19 is disposed in the gas chamber 303 and connected to the reactor body 3. One side of the porous dielectric plate 19 is attached to the gas diffusion electrode 4, providing support for the gas diffusion electrode 4.

[0034] Porous media are materials composed of a solid framework and interconnected pore spaces. These pores can be occupied by gases, liquids, or multiphase fluids, and interconnected channels must exist between the pores to support fluid transport. This allows gases to pass through the porous media normally.

[0035] Each spacer 20 is connected between the side of the porous dielectric plate 19 facing away from the gas diffusion electrode 4 and the inner wall of the gas chamber 303, and the spacers 20 are arranged sequentially in the vertical direction, so that a flow channel 18 is formed between every two adjacent spacers 20. Each spacer 20 has an air passage 17, so that the air passage 17 connects two adjacent flow channels 18. The air passages 17 on two adjacent spacers 20 are all connected to the same flow channel 18, and the air passages 17 on two adjacent spacers 20 are staggered.

[0036] After entering from the bottom of the gas chamber 303, the gas flows sequentially through each gas channel 17 and flow channel 18 and upwards. When gas enters a flow channel 18 from one gas channel 17, because the next gas channel 17 is staggered from the first, the gas must flow through the flow channel 18 before entering the next gas channel 17. As the gas flows from the flow channel 18 into the next gas channel 17, the flow area decreases, thereby throttling the gas and reducing the pressure. In this way, as the gas continues to flow, it is throttled multiple times, and the pressure gradually decreases.

[0037] In some embodiments, such as Figures 5 to 7 As shown, multiple air passages 17 can be provided on each partition 20 to increase gas flow efficiency. For two adjacent partitions 20, the air passages 17 on them are staggered, that is, any air passage 17 on one partition 20 is staggered from any air passage 17 on another adjacent partition 20.

[0038] In one embodiment, such as Figures 1 to 4 As shown, the electrolysis reactor also includes multiple detection ports 5, each of which is connected to the gas chamber 303. These detection ports 5 are arranged sequentially along the vertical direction. By connecting pressure sensing elements to each detection port 5, the pressure of the gas within the gas chamber 303 at different heights can be detected. This facilitates monitoring of the gas pressure within the gas chamber 303 and ensures that the pressure difference between the gas in the gas chamber 303 and the cathode electrolyte in the cathode chamber 302 at each height along the vertical direction is less than a specified pressure.

[0039] In one embodiment, such as Figure 8 and Figure 9 As shown, the reactor body 3 also has an inlet chamber 331 and an outlet chamber 332. The inlet chamber 331 is located at the bottom of the reactor body 3 and communicates with the bottom of the gas chamber 303. The outlet chamber 332 is located at the top of the reactor body 3 and communicates with the top of the gas chamber 303.

[0040] The electrolysis reactor also includes an inlet 6 and an outlet 7. The inlet 6 is connected to the reactor body 3 and communicates with the inlet chamber 331, while the outlet 7 is connected to the reactor body 3 and communicates with the outlet chamber 332. Thus, when gas is introduced through the inlet 6, it first flows to the inlet chamber 331, then enters from the bottom of the gas chamber 303, flows through the gas chamber 303, enters the outlet chamber 332, and is then discharged from the outlet 7. This allows for gas circulation within the gas chamber 303, making gas introduction more convenient.

[0041] In one embodiment, such as Figures 8 to 11 As shown, the reactor body 3 includes an anode chamber 31, a cathode chamber 32, and a gas chamber 33. An anode chamber 301 is formed in the anode chamber 31, and a cathode chamber 302 is formed in the cathode chamber 32. The anode chamber 31 and the cathode chamber 32 are connected, and an ion exchange membrane 1 is sandwiched between the anode chamber 31 and the cathode chamber 32, thus separating the anode chamber 301 and the cathode chamber 302. Ions in the anode chamber 301 can pass through the ion exchange membrane 1 and enter the cathode chamber 302.

[0042] A gas chamber 303 is formed on the gas chamber 33, and the gas chamber 33 is connected to the side of the cathode chamber 32 opposite to the anode chamber 31. A gas diffusion electrode 4 is sandwiched between the gas chamber 33 and the cathode chamber 32, thus separating the gas chamber 33 and the cathode chamber 32. Gas in the gas chamber 33 can pass through the gas diffusion electrode 4 and enter the cathode chamber 32.

[0043] In some embodiments, mounting holes are provided on the anode cavity 31, cathode cavity 32, and gas cavity 33. After aligning the mounting holes on the anode cavity 31, cathode cavity 32, and gas cavity 33 in sequence, bolts are passed through and fixed to secure them, thereby fixing the anode cavity 31 and cathode cavity 32 together, and clamping the ion membrane 1 between the anode cavity 31 and cathode cavity 32. At the same time, the gas cavity 33 is fixedly connected to the cathode cavity 32, and the gas diffusion electrode 4 is clamped between the gas cavity 33 and cathode cavity 32.

[0044] In some embodiments, the air inlet 6 is connected to the bottom of the gas chamber 33 and communicates with the air inlet 331, and the air outlet 7 is connected to the top of the gas chamber 33 and communicates with the air outlet 332.

[0045] In some embodiments, such as Figure 1 and Figure 2 As shown, the electrolytic reactor also includes an anode inlet 13 and an anode outlet 14. The anode inlet 13 is connected to the bottom of the anode cavity 31 and communicates with the bottom of the anode chamber 301, while the anode outlet 14 is connected to the anode cavity 31 and communicates with the anode chamber 301. Thus, after the anode electrolyte is introduced through the anode inlet 13, it flows into the bottom of the anode chamber 301, then through the chamber, and finally exits through the anode outlet 14, allowing the anode electrolyte to circulate within the anode chamber 301 and making the introduction of the anode electrolyte more convenient.

[0046] In some embodiments, such as Figure 1 and Figure 2 As shown, the electrolysis reactor also includes a cathode inlet 15 and a cathode outlet 16. The cathode inlet 15 is connected to the bottom of the cathode cavity 32 and communicates with the bottom of the cathode chamber 302, while the cathode outlet 16 is connected to the cathode cavity 32 and communicates with the cathode chamber 302. Thus, after the cathode electrolyte is introduced through the cathode inlet 15, it flows into the bottom of the cathode chamber 302, then through the cathode chamber 302, and finally exits through the cathode outlet 16, allowing the cathode electrolyte to circulate within the cathode chamber 302 and making the introduction of cathode electrolyte more convenient.

[0047] In one embodiment, such as Figures 1 to 4 As shown, the electrolysis reactor also includes a first gasket 11. The first gasket 11 includes a main body 111 and a protrusion 112 connecting the main body 111, such that the cross-section of the first gasket 11 is L-shaped.

[0048] A first step 333 is provided on the side of the gas cavity 33 near the cathode cavity 32. One side of the gas diffusion electrode 4 abuts against the gas cavity 33 and is located inside the first step 333. After the cathode cavity 32 and the gas cavity 33 are connected, the main body 111 of the first washer 11 is sandwiched between the cathode cavity 32 and the gas cavity 33. The protrusion 112 of the first washer 11 extends to the inside of the first step 333 and abuts against the side of the gas diffusion electrode 4 away from the gas cavity 33, thereby pressing the gas diffusion electrode 4 tightly against the gas cavity 33.

[0049] A second step 321 is provided on the side of the cathode cavity 32 near the gas cavity 33, and the second step 321 abuts against the side of the gas diffusion electrode 4 away from the gas cavity 33.

[0050] The gas diffusion electrode 4 is clamped between the second step portion 321 and the gas cavity 33 to form a first seal, preventing the cathode electrolyte from leaking outwards across the second step portion 321. Even if the cathode electrolyte leaks through the gas diffusion electrode 4 to the outside of the second step portion 321, the protrusion 112 of the first gasket 11 presses the gas diffusion electrode 4 against the gas cavity 33 to form a second seal, preventing the cathode electrolyte from continuing to leak beyond the protrusion 112 of the first gasket 11. Even if the cathode electrolyte leaks again through the gas diffusion electrode 4 to the outside of the protrusion 112 of the first gasket 11, the main body 111 of the first gasket 11 is clamped between the cathode cavity 32 and the gas cavity 33 to form a third seal, preventing the cathode electrolyte from leaking between the cathode cavity 32 and the gas cavity 33.

[0051] This configuration, with its three seals, prevents leakage of the cathode electrolyte and effectively avoids leakage of the cathode electrolyte through the gas diffusion electrode 4.

[0052] The first washer 11 can be made of rubber or plastic.

[0053] In one embodiment, such as Figures 1 to 4 As shown, the electrolysis reactor also includes a first support member 9 and a second support member 10. The first support member 9 is disposed in the cathode chamber 302 and connected to the cathode chamber 32. The first support member 9 is attached to the side of the gas diffusion electrode 4 away from the gas chamber 303.

[0054] Since the porous dielectric plate 19 supports the gas passage 17 on the side of the gas diffusion electrode 4 near the gas chamber 303, the first support member 9 and the porous dielectric plate 19 support the gas diffusion electrode 4 on both sides, respectively, thus achieving rigid support for the gas diffusion electrode 4.

[0055] The first support member 9 can be a diamond-shaped mesh or other wire mesh. A first mounting groove is provided on the inner wall of the cathode chamber 302, and the first support member 9 is inserted into the first mounting groove.

[0056] The second support member 10 is disposed in the cathode chamber 302 and connected to the cathode cavity 32. The anode electrode 2 and the second support member 10 abut against the two sides of the ion membrane 1 respectively, thereby supporting the ion membrane 1 on both sides and effectively supporting the ion membrane 1.

[0057] The second support member 10 can be a diamond-shaped mesh or other wire mesh. A second mounting groove is provided on the inner wall of the cathode chamber 302, and the second support member 10 is inserted into the second mounting groove.

[0058] The anode electrode 2 includes interconnected DSA electrodes and a support mesh, which can be a diamond mesh or other wire mesh. A third mounting groove is provided on the inner wall of the anode chamber 301, and the anode electrode 2 is inserted into the third mounting groove.

[0059] In one embodiment, such as Figure 8 and Figure 9 As shown, the electrolysis reactor also includes two second gaskets 8. One second gasket 8 is pressed between one side of the ion exchange membrane 1 and the cathode cavity 32, and the other second gasket 8 is pressed between the other side of the ion exchange membrane 1 and the anode cavity 31. Thus, the second gaskets 8 act as a seal between the cathode cavity 32 and the anode cavity 31, preventing leakage of the cathode electrolyte or anolyte from between the cathode cavity 32 and the anode cavity 31.

[0060] The material of the second washer 8 can be rubber or plastic.

[0061] In one embodiment, the electrolytic reactor further includes a fixing bracket 12, which is connected to the reactor body 3. When using the electrolytic reactor, fixing the fixing bracket 12 at the installation location can fix the reactor body 3, making installation more convenient.

[0062] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by this application.

Claims

1. An electrolytic reactor, characterized in that, include: The reactor body (3) is provided with an inner cavity; An ion membrane (1) is vertically disposed in the inner cavity, and an anode chamber (301) is formed on one side of the ion membrane (1). The anode chamber (301) is adapted to allow anolyte to flow in the vertical direction. An anode electrode (2) is disposed within the anode chamber (301); A gas diffusion electrode (4) is vertically disposed in the inner cavity. A cathode chamber (302) is formed between the side of the ion membrane (1) away from the anode chamber (301) and the gas diffusion electrode (4). The cathode chamber (302) is adapted to allow the cathode electrolyte to flow in the vertical direction. A gas chamber (303) is formed on the side of the gas diffusion electrode (4) away from the ion membrane (1). The gas chamber (303) is adapted to allow gas to flow from bottom to top. A throttling structure is provided in the gas chamber (303) to throttle the gas so that the pressure difference between the gas and the cathode electrolyte in the vertical direction is less than a specified pressure.

2. The electrolytic reactor according to claim 1, characterized in that, The throttling structure includes: Multiple airways (17) are arranged sequentially in the vertical direction, and adjacent airways (17) are staggered in the vertical direction; Multiple flow channels (18), with two adjacent air passages (17) connected through one of the flow channels (18).

3. The electrolytic reactor according to claim 2, characterized in that, The throttling structure also includes: A porous dielectric plate (19) is disposed in the gas chamber (303) and one side is attached to the gas diffusion electrode (4); Multiple spacers (20) are connected between the side of the porous dielectric plate (19) away from the gas diffusion electrode (4) and the inner wall of the gas chamber (303). Each spacer (20) is arranged in sequence along the vertical direction. The flow channel (18) is formed between two adjacent spacers (20). Each spacer (20) is provided with a gas channel (17). The gas channels (17) on two adjacent spacers (20) are staggered.

4. The electrolytic reactor according to claim 1, characterized in that, Also includes: Multiple detection ports (5) are provided, each of which is connected to the gas chamber (303), and each of the detection ports (5) is arranged sequentially in the vertical direction.

5. The electrolytic reactor according to claim 1, characterized in that, The reactor body (3) is further provided with an inlet chamber (331) and an outlet chamber (332). The inlet chamber (331) is connected to the bottom of the gas chamber (303), and the outlet chamber (332) is connected to the top of the gas chamber (303). The electrolytic reactor also includes: The air inlet (6) is connected to the air intake chamber (331); The air outlet (7) is connected to the air outlet chamber (332).

6. The electrolytic reactor according to claim 1, characterized in that, The reactor body (3) includes: The anode cavity (31) is provided with the anode chamber (301); The cathode cavity (32) has the cathode chamber (302) and is connected to the anode cavity (31). The ion membrane (1) is sandwiched between the anode cavity (31) and the cathode cavity (32). The gas cavity (33) has the gas chamber (303) and is connected to the side of the cathode cavity (32) away from the anode cavity (31). The gas diffusion electrode (4) is sandwiched between the cathode cavity (32) and the gas cavity (33).

7. The electrolytic reactor according to claim 6, characterized in that, Also includes: The first washer (11) includes a main body (111) and a protrusion (112) connected to the main body (111). A first step (333) is provided on the gas cavity (33). One side of the gas diffusion electrode (4) abuts against the gas cavity (33) and is located inside the first step (333). The main body (111) of the first washer (11) is sandwiched between the cathode cavity (32) and the gas cavity (33). The protrusion (112) extends to the inside of the first step (333) and abuts against the side of the gas diffusion electrode (4) away from the gas cavity (33). A second step (321) is provided on the cathode cavity (32). The second step (321) abuts against the side of the gas diffusion electrode (4) away from the gas cavity (33).

8. The electrolytic reactor according to claim 6, characterized in that, Also includes: The first support member (9) is disposed in the cathode chamber (302) and connected to the cathode cavity (32). The first support member (9) is attached to the side of the gas diffusion electrode (4) away from the gas chamber (303). The second support member (10) is disposed in the cathode chamber (302) and connected to the cathode cavity (32). The anode electrode (2) and the second support member (10) respectively abut against the two sides of the ion membrane (1).

9. The electrolytic reactor according to claim 6, characterized in that, Also includes: A second gasket (8) is pressed between one side of the ion membrane (1) and the cathode cavity (32), and another second gasket (8) is pressed between the other side of the ion membrane (1) and the anode cavity (31).

10. The electrolytic reactor according to claim 1, characterized in that, Also includes: A fixed bracket (12) is connected to the reactor body (3) and is used to fix the reactor body (3).

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