Electro-optical micro-channel reactor

Abstract

The invention discloses an electro-optical micro-channel reactor. Belongs to the technical field of reactors, the electro-optical microchannel reactor comprises a core assembly, a shell assembly and a conductive assembly, the core assembly comprises a light-transmitting conductive plate, a microchannel plate and an electrode plate, the microchannel plate is provided with a fluid groove, and the fluid groove penetrates through the microchannel plate in the thickness direction of the microchannel plate. The micro-channel plate is clamped between the light-transmitting current-conducting plate and the electrode plate, the light-transmitting current-conducting plate, the fluid groove and the electrode plate jointly define a fluid channel, the shell assembly is provided with a light-transmitting hole, the light-transmitting hole is opposite to the light-transmitting current-conducting plate, the current-conducting assembly comprises an anode conductor and a cathode conductor, one of the anode conductor and the cathode conductor is connected with the light-transmitting current-conducting plate, and the other of the anode conductor and the cathode conductor is connected with the electrode plate. The electro-optical micro-channel reactor not only can realize the integrated design of electro-catalytic reaction and photocatalytic reaction, but also can reduce ohmic drop and luminous flux attenuation effect by shortening the distance between the electrodes, and can effectively improve the chemical reaction rate.

Description

Technical Field

[0001] The invention relates to the technical field of reactors, and in particular to an electro-optical microchannel reactor. Background Art

[0002] In the fields of fine chemicals and drug synthesis, green, efficient and economical synthesis strategies are the key factors that determine the production process. In order to achieve highly selective green synthesis methods, electrocatalysis and photocatalysis technologies have received extensive attention and application.

[0003] However, individual electrocatalytic and photocatalytic technologies are limited by the high ohmic drop between electrodes, overoxidation, and the use of excessive oxidants, and still need further development. Electro-photocatalysis is a new synthetic strategy that integrates the advantages of electrocatalysis and photocatalysis. It uses electrocatalysis to generate oxidizing agents in situ to solve the problem of excessive photocatalytic oxidants. However, in related technologies, existing reactors can usually only achieve electrocatalysis or photocatalysis independently, and cannot simultaneously utilize the synergistic effects of electrocatalysis and photocatalysis to further increase the reaction rate. Summary of the invention

[0004] The present invention aims to solve at least one of the above technical problems in the prior art to a certain extent. To this end, the present invention proposes an electro-optical microchannel reactor, which can simultaneously realize the electrocatalytic and photocatalytic processes, and can also use microchannels to reduce the ohmic drop between electrodes, thereby effectively improving the electro-optical catalytic efficiency.

[0005] According to an embodiment of the present invention, the electro-optical microchannel reactor comprises: a core component, a shell component and a conductive component, wherein the core component comprises: a light-transmitting conductive plate, a microchannel plate and an electrode plate, wherein the microchannel plate is provided with a fluid groove, wherein the fluid groove penetrates the microchannel plate in the thickness direction of the microchannel plate, wherein the microchannel plate is sandwiched between the light-transmitting conductive plate and the electrode plate, wherein the light-transmitting conductive plate, the fluid groove and the electrode plate jointly define a fluid channel; wherein the shell component is sleeved on the outer side of the core component, wherein the shell component has a light-transmitting hole and an interface hole, wherein the light-transmitting hole is opposite to the light-transmitting conductive plate, and the interface hole is connected to both ends of the fluid channel; wherein the conductive component comprises an anode conductor and a cathode conductor, wherein one of the anode conductor and the cathode conductor is passed through the shell component and connected to the light-transmitting conductive plate, and the other of the two is passed through the shell component and connected to the electrode plate.

[0006] The electro-optical microchannel reactor according to the embodiment of the present invention can not only realize the integrated design of photocatalytic reaction and electrocatalytic reaction, but also reduce the ohmic drop and light flux attenuation effect by shortening the distance between electrodes, thereby effectively improving the chemical reaction rate.

[0007] According to some embodiments of the present invention, the fluid grooves are arranged in a meandering manner on the microchannel plate.

[0008] According to some embodiments of the present invention, the light-transmitting conductive plate or the electrode plate is provided with a medium inlet, and the interface hole is connected to one end of the fluid channel through the medium inlet; the light-transmitting conductive plate or the electrode plate is provided with a medium outlet, and the interface hole is connected to the other end of the fluid channel through the medium outlet.

[0009] According to some embodiments of the present invention, the material of the light-transmitting conductive plate is at least one of FTO glass and ITO glass; or the light-transmitting conductive plate includes: a stacked glass layer and a coating layer, the material of the glass layer is at least one of FTO glass or ITO glass, and the material of the coating layer is at least one of platinum, titanium dioxide, and tungsten trioxide.

[0010] According to some embodiments of the present invention, the electrode plate is made of at least one of graphite, platinum, titanium, nickel, and stainless steel.

[0011] According to some embodiments of the present invention, the material of the microchannel plate is at least one of PTFE, PEEK and PP.

[0012] According to some embodiments of the present invention, the shell assembly includes: a first clamping member, a second clamping member and a fastener, the first clamping member is located on the side of the light-transmitting conductive plate away from the microchannel plate, and the first clamping member has the light-transmitting hole; the second clamping member is located on the side of the electrode plate away from the microchannel plate, and the second clamping member has the interface hole; the first clamping member and the second clamping member are connected by the fastener.

[0013] According to some embodiments of the present invention, the first clamping member includes: a first outer frame layer and a first insulating layer arranged in a stacked manner, a first mounting groove is provided on a side of the first insulating layer facing the light-transmitting conductive plate, and at least a portion of the light-transmitting conductive plate is located in the first mounting groove; the second clamping member includes: a second outer frame layer and a second insulating layer arranged in a stacked manner, a second mounting groove is provided on a side of the second insulating layer facing the electrode plate, and at least a portion of the electrode plate is located in the second mounting groove.

[0014] According to some embodiments of the present invention, the first clamping member further includes: an inner buffer layer, the inner buffer layer is located in the first mounting groove, and the inner buffer layer overlaps the edge of the light-transmitting conductive plate.

[0015] According to some embodiments of the present invention, the first clamping member further includes: a first outer buffer layer, which is sandwiched between the first outer frame layer and the first insulating layer; the second clamping member further includes: a second outer buffer layer, which is sandwiched between the second outer frame layer and the second insulating layer.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a stereoscopic diagram of an electro-optical microchannel reactor according to an embodiment of the present invention;

[0018] Figure 2 The explosion of the electro-optical microchannel reactor according to the embodiment of the present invention Figure 1 ;

[0019] Figure 3 The explosion of the electro-optical microchannel reactor according to the embodiment of the present invention Figure 2 .

[0020] Reference numerals:

[0021] Core assembly 1; light-transmitting conductive plate 11; microchannel plate 12; fluid slot 121; electrode plate 13; medium inlet 131; medium outlet 132;

[0022] Shell assembly 2; first clamping member 21; first outer frame layer 211; first insulating layer 212; first mounting groove 2121; inner buffer layer 213; first outer buffer layer 214; light transmission hole 215; second clamping member 22; second outer frame layer 221; second insulating layer 222; second mounting groove 2221; second outer buffer layer 223; interface hole 224; first sub-interface 2241; second sub-interface 2242;

[0023] Electro-optical microchannel reactor 10. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0025] In the description of the present invention, it is necessary to understand that the terms "length", "width", "thickness", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Combine the following Figure 1-Figure 3 The electro-optical microchannel reactor 10 according to an embodiment of the present invention is described in detail.

[0029] Reference Figure 1-Figure 3 As shown, the electro-optical microchannel reactor 10 according to an embodiment of the present invention includes: a core component 1, a shell component 2 and a conductive component. The core component 1 includes: a light-transmitting conductive plate 11, a microchannel plate 12 and an electrode plate 13. The microchannel plate 12 is provided with a fluid groove 121. In the thickness direction of the microchannel plate 12, the fluid groove 121 penetrates the microchannel plate 12. The microchannel plate 12 is sandwiched between the light-transmitting conductive plate 11 and the electrode plate 13. The light-transmitting conductive plate 11, the fluid groove 121 and the electrode plate 13 jointly define a fluid channel. The shell component 2 is sleeved on the outside of the core component 1. The shell component 2 has a light-transmitting hole 215 and an interface hole 224. The light-transmitting hole 215 is opposite to the light-transmitting conductive plate 11, and the interface hole 224 is connected to both ends of the fluid channel. The conductive component includes an anode conductor and a cathode conductor. One of the anode conductor and the cathode conductor is penetrated by the shell component 2 and connected to the light-transmitting conductive plate 11, and the other of the two is penetrated by the shell component 2 and connected to the electrode plate 13.

[0030] It can be understood that the light-transmitting conductive plate 11 not only allows light to pass through, but also has conductivity. The shell component 2 has a light-transmitting hole 215 and an interface hole 224. Reactants participating in the chemical reaction can flow in the fluid channel. The interface hole 224 is connected to both ends of the fluid channel. One end of the fluid channel is the inlet end, and the other end is the outlet end. The reactants can flow into the fluid channel through the interface hole 224 and the inlet end in turn. The products generated by the reaction of the reactants can flow out of the fluid channel through the outlet end, and then flow out to the outside of the electro-optical microchannel reactor 10 through the interface hole 224. The light-transmitting hole 215 allows light to pass through the shell component 2. The light-transmitting hole 215 is opposite to the light-transmitting conductive plate 11. Light can pass through the light-transmitting hole 215 and penetrate the light-transmitting conductive plate 11 to irradiate the reactants in the fluid channel, so as to photocatalyze the reactants by light, realize photocatalytic reaction, and increase the chemical reaction rate.

[0031] The anode conductor is suitable for connecting to the positive pole of a power source outside the electro-optical microchannel reactor 10, and the cathode conductor is suitable for connecting to the negative pole of the power source. When the anode conductor is connected to the positive pole of the power source and the cathode conductor is connected to the negative pole of the power source, the light-transmitting conductive plate 11 and the electrode plate 13 can be charged, and an electric field is formed between the light-transmitting conductive plate 11 and the electrode plate 13, so as to utilize electrical energy to electrocatalyze the reactants in the fluid channel, realize an electrocatalytic reaction, and increase the chemical reaction rate.

[0032] The fluid channel can realize flow chemical reaction, that is, the reactants continuously flow from the inlet end to the outlet end of the fluid channel while participating in the chemical reaction, which can improve the efficiency of mass transfer and heat transfer and facilitate the full reaction of the reactants.

[0033] In addition, the microchannel plate 12 is sandwiched between the light-transmitting conductive plate 11 and the electrode plate 13. The light-transmitting conductive plate 11, the microchannel plate 12 and the electrode plate 13 can form a sandwich structure. The microchannel plate 12 is thinner, which can shorten the distance between the light-transmitting conductive plate 11 and the electrode plate 13, that is, shorten the distance between the electrodes, reduce the ohmic drop and light flux attenuation effects, and thus effectively increase the chemical reaction rate.

[0034] The thickness direction of the microchannel plate 12 can be Figure 2 and Figure 3 In the left and right directions, the reactants can be fluids such as gas, liquid, gas-liquid mixture, etc., the anode conductor and the cathode conductor can be foils, and the anode conductor and the cathode conductor can also be wires.

[0035] The electro-optical microchannel reactor 10 according to the embodiment of the present invention can not only realize the integrated design of photocatalytic reaction and electrocatalytic reaction, but also reduce the ohmic drop and light flux attenuation effect by shortening the distance between electrodes, thereby effectively improving the chemical reaction rate.

[0036] In some embodiments of the present invention, the fluid grooves 121 are arranged in a zigzag manner on the microchannel plate 12, which is beneficial for the reactants to fully react in the fluid channel.

[0037] It is understandable that the zigzag arrangement of the fluid grooves 121 is relatively long, which can increase the length of the fluid channel, thereby increasing the flow time of the reactants in the fluid channel, thereby increasing the reaction time of the reactants, which is conducive to the full reaction of the reactants.

[0038] The flow channel grooves may be arranged in an "S"-shaped meandering arrangement, or the flow channel grooves may be arranged in a plane spiral meandering arrangement.

[0039] In some embodiments of the present invention, the light-transmitting conductive plate 11 or the electrode plate 13 is provided with a medium inlet 131, and the interface hole 224 is connected to one end of the fluid channel through the medium inlet 131; the light-transmitting conductive plate 11 or the electrode plate 13 is provided with a medium outlet 132, and the interface hole 224 is connected to the other end of the fluid channel through the medium outlet 132.

[0040] It can be understood that the light-transmitting conductive plate 11 or the electrode plate 13 is provided with a medium inlet 131, that is, the medium inlet 131 can be provided on the light-transmitting conductive plate 11, and the medium inlet 131 can also be provided on the electrode plate 13. The light-transmitting conductive plate 11 or the electrode plate 13 is provided with a medium outlet 132, that is, the medium outlet 132 can be provided on the light-transmitting conductive plate 11, and the medium outlet 132 can also be provided on the electrode plate 13. The medium inlet 131 and the medium outlet 132 can be flexibly arranged.

[0041] In some specific embodiments, referring to Figure 2 and Figure 3 As shown, the medium inlet 131 and the medium outlet 132 are both provided on the electrode plate 13 , which facilitates the processing of the medium inlet 131 and the medium outlet 132 .

[0042] In some embodiments of the present invention, the material of the light-transmitting conductive plate 11 is at least one of FTO glass (fluorine-doped tin oxide transparent conductive glass) and ITO glass (indium-doped tin oxide conductive glass), or the light-transmitting conductive plate 11 includes: a stacked glass layer and a coating layer, the material of the glass layer is at least one of FTO glass or ITO glass, and the material of the coating layer is at least one of platinum, titanium dioxide, and tungsten trioxide.

[0043] In some embodiments, the material of the light-transmitting conductive plate 11 is at least one of FTO glass and ITO glass. Both FTO glass and ITO glass are transparent glass, which can allow light emitted by the light source to pass through. FTO glass and ITO glass also have high conductivity, which enables the light-transmitting conductive plate 11 to participate in electro-photocatalytic reactions under the action of light and current.

[0044] Among them, the light-transmitting conductive plate 11 can be a single-layer structure, and its material is one of FTO glass and ITO glass. When the material of the light-transmitting conductive plate 11 is FTO glass, the cost of FTO glass is relatively low, which is beneficial to reducing the production cost of the light-transmitting conductive plate 11. FTO glass has good light transmittance (more than 80%) and low resistivity, ensuring that light can be effectively transmitted to the reactants, and at the same time can withstand the current density required for the reaction without material degradation. It is suitable for catalytic reactions that require the simultaneous participation of light and electrical energy. When the material of the light-transmitting conductive plate 11 is ITO glass, the light transmittance of ITO glass is relatively high, which is beneficial to improving the photocatalytic efficiency and can be used in reactions requiring high current density.

[0045] The light-transmitting conductive plate 11 may also be a multi-layer structure, in which one layer is FTO glass and the other layer is ITO glass. The light transmittance and resistivity of the light-transmitting conductive plate 11 made of multi-layer composite materials can be adjusted.

[0046] In other embodiments, the light-transmitting conductive plate 11 includes: a stacked glass layer and a coating layer, the glass layer is made of at least one of FTO glass or ITO glass, and the coating layer is made of at least one of platinum, titanium dioxide, and tungsten trioxide. That is, the light-transmitting conductive plate 11 is a multi-layer structure, one layer is a glass layer, and the other layer is platinum, titanium dioxide, or tungsten trioxide. Platinum, titanium dioxide, and tungsten trioxide can reduce the resistivity of the light-transmitting conductive plate 11. The light-transmitting conductive plate 11 of the multi-layer composite material can adjust its light transmittance, resistivity, and photocatalytic activity. Among them, the thickness of the coating layer is less than 10 microns, the thickness of the coating layer is relatively thin, and the coating layer can be a mesh structure, which can effectively improve the light transmittance of the light-transmitting conductive plate 11.

[0047] In some embodiments of the present invention, the material of the electrode plate 13 is at least one of graphite, platinum, titanium, nickel, and stainless steel. Graphite, platinum, titanium, nickel, and stainless steel all have good conductivity, ensuring that electrical energy can be effectively transferred to the reactants to facilitate the electrocatalytic reaction.

[0048] In some embodiments, the material of the electrode plate 13 is graphite. The electrode plate 13 made of graphite has good conductivity, and is resistant to high temperature and electrochemical corrosion, which can reduce the risk of corrosion of the electrode plate 13. The cost of graphite is relatively low, which can reduce the production cost of the electrode plate 13, which is beneficial to improving the economy of the electro-optical micro-channel reactor. Graphite is also easy to process, which is beneficial to reducing the difficulty of processing the electrode plate 13. In addition, graphite can provide electrons in the electrocatalytic reaction and participate in the reaction.

[0049] In other embodiments, the material of the electrode plate 13 is at least one of platinum, titanium, nickel, and stainless steel. For example, the electrode plate 13 is a platinum electrode, a titanium mesh electrode, a nickel electrode, or a stainless steel electrode. For another example, the electrode plate 13 is a multi-layer structure electrode, one layer of which is made of stainless steel, and the other layer is made of platinum, titanium, or nickel, so as to adjust its conductivity, structural strength, and corrosion resistance through the multi-layer composite material electrode plate 13. Platinum, titanium mesh, nickel, and stainless steel have high chemical stability in strong acid and alkali environments, which can effectively reduce the risk of corrosion of the electrode plate 13, and platinum, titanium mesh, nickel, and stainless steel have high electrical conductivity, so as to facilitate electrocatalytic reactions.

[0050] In some embodiments of the present invention, the material of the microchannel plate 12 is at least one of PTFE (polytetrafluoroethylene), PEEK (polyetheretherketone) and PP (polypropylene). PTFE, PEEK and PP have excellent chemical corrosion resistance, can remain stable in high acid and alkali environments, and can reduce the risk of corrosion of the microchannel plate 12.

[0051] In some embodiments, the material of the microchannel plate 12 is PTFE. PTFE has a low friction coefficient, which is beneficial to reducing the resistance to the flow of reactants in the fluid channel, so as to facilitate the smooth flow of reactants and reduce the risk of fluid channel blockage. PTFE exhibits strong inertness in chemical reactions and can withstand a variety of strong acids, strong bases and organic solvents, thereby reducing the risk of corrosion of the microchannel plate 12.

[0052] In other embodiments, the material of the microchannel plate 12 is PEEK, which has high mechanical strength, which is beneficial to improving the structural stability of the microchannel plate 12. PEEK also has good mechanical stability under high pressure and high temperature, and is suitable for extreme reaction conditions of high pressure and high temperature.

[0053] In some other embodiments, the material of the microchannel plate 12 is PP, which has a relatively low cost, thereby reducing the manufacturing cost of the microchannel plate 12 and improving the economy of the electro-optical microchannel reactor.

[0054] In addition, the microchannel plate 12 may also be a multi-layer structure, wherein one layer is made of PTFE material and the other layer is made of PEEK or PP material, so that the structural strength and corrosion resistance of the microchannel plate 12 can be adjusted through the multi-layer composite material.

[0055] In some embodiments of the present invention, reference Figure 1-Figure 3As shown, the shell assembly 2 includes: a first clamping member 21, a second clamping member 22 and a fastener, the first clamping member 21 is located on the side of the light-transmitting conductive plate 11 away from the microchannel plate 12, the first clamping member 21 has a light-transmitting hole 215, the second clamping member 22 is located on the side of the electrode plate 13 away from the microchannel plate 12, the second clamping member 22 has an interface hole 224, the first clamping member 21 and the second clamping member 22 are connected by fasteners so that the core assembly 1 is clamped between the first clamping member 21 and the second clamping member 22.

[0056] It can be understood that when the first clamping member 21 and the second clamping member 22 are connected by fasteners, the first clamping member 21 and the second clamping member 22 jointly clamp the microchannel plate 12. At the same time, the first clamping member 21 presses against the light-transmitting conductive plate 11 to make the light-transmitting conductive plate 11 fit with the left end surface of the microchannel plate 12, and the second clamping member 22 presses against the electrode plate 13 to make the electrode plate 13 fit with the right end surface of the microchannel plate 12, so that the light-transmitting conductive plate 11, the microchannel plate 12 and the electrode plate 13 form a whole, that is, the core assembly 1, the light-transmitting conductive plate 11 and the electrode plate 13 are respectively fitted with the left end surface and the right end surface of the microchannel plate 12, which is conducive to ensuring the sealing of the fluid channel and reducing the risk of leakage of reactants and products in the fluid channel.

[0057] In some embodiments, the fasteners may be screws, or bolts and nuts, which can ensure the connection strength between the first clamp 21 and the second clamp 22, and facilitate the first clamp 21 and the second clamp 22 to stably and reliably clamp the core assembly 1.

[0058] In other embodiments, the fastener can be a clamp. When the clamp is clamped, the first clamp 21 and the second clamp 22 jointly clamp the core assembly 1. When the clamp is loosened, the first clamp 21 and the second clamp 22 can be separated from the core assembly 1, which facilitates the disassembly and replacement of the core assembly 1, thereby facilitating the production and maintenance of the electro-optical microchannel reactor 10.

[0059] In some embodiments of the present invention, reference Figure 2 and Figure 3 As shown, the first clamping member 21 includes: a first outer frame layer 211 and a first insulating layer 212 arranged in a stacked manner, a first mounting groove 2121 is provided on the side of the first insulating layer 212 facing the light-transmitting conductive plate 11, and at least a portion of the light-transmitting conductive plate 11 is located in the first mounting groove 2121, and the second clamping member 22 includes: a second outer frame layer 221 and a second insulating layer 222 arranged in a stacked manner, a second mounting groove 2221 is provided on the side of the second insulating layer 222 facing the electrode plate 13, and at least a portion of the electrode plate 13 is located in the second mounting groove 2221.

[0060] It can be understood that at least part of the light-transmitting conductive plate 11 is located in the first mounting groove 2121 of the first insulating layer 212, and the first mounting groove 2121 can wrap the light-transmitting conductive plate 11. When the light-transmitting conductive plate 11 is powered on, the first insulating layer 212 can play a role of insulating protection, reduce the risk of leakage, and is beneficial to improving the safety of the electro-optical microchannel reactor 10, and the side wall of the first mounting groove 2121 can limit the light-transmitting conductive plate 11, which can reduce the risk of shaking or falling off of the light-transmitting conductive plate 11. At least part of the electrode plate 13 is located in the second mounting groove 2221 of the second insulating layer 222, and the second mounting groove 2221 can wrap the electrode plate 13. When the electrode plate 13 is powered on, the second insulating layer 222 can play a role of insulating protection, reduce the risk of leakage, and is beneficial to improving the safety of the electro-optical microchannel reactor 10, and the side wall of the second mounting groove 2221 can limit the electrode plate 13, which can reduce the risk of shaking or falling off of the electrode plate 13.

[0061] In some embodiments of the present invention, reference Figure 2 and Figure 3 As shown, the first clamping member 21 also includes: an inner buffer layer 213, the inner buffer layer 213 is located in the first mounting groove 2121, and the inner buffer layer 213 overlaps the edge of the light-transmitting conductive plate 11, the inner buffer layer 213 can play a role in vibration reduction and buffering, and can reduce the impact force on the light-transmitting conductive plate 11, thereby helping to reduce the risk of damage to the light-transmitting conductive plate 11.

[0062] In some embodiments of the present invention, reference Figure 2 and Figure 3 As shown, the first clamping member 21 also includes: a first outer buffer layer 214, the first outer buffer layer 214 is sandwiched between the first outer frame layer 211 and the first insulating layer 212, and the second clamping member 22 also includes: a second outer buffer layer 223, the second outer buffer layer 223 is sandwiched between the second outer frame layer 221 and the second insulating layer 222, the first outer buffer layer 214 and the second outer buffer layer 223 can play a role in vibration reduction and buffering, when the electro-optical microchannel reactor 10 is impacted, the first outer buffer layer 214 and the second outer buffer layer 223 can absorb the impact force, which can reduce the impact force transmitted to the core assembly 1, thereby effectively reducing the risk of damage to the core assembly 1.

[0063] In some embodiments of the present invention, the material of the first outer frame layer 211 and the second outer frame layer 221 can both be stainless steel. Stainless steel has high strength and can reduce the risk of deformation of the first outer frame layer 211 and the second outer frame layer 221, which is beneficial to ensuring the structural stability of the electro-optical microchannel reactor 10.

[0064] In some embodiments of the present invention, the material of the inner buffer layer 213, the first outer buffer layer 214 and the second outer buffer layer 223 can be at least one of silicone, fluororubber, and EPDM rubber. Among them, silicone has strong chemical inertness and is suitable for use in various chemical environments. Fluororubber has good chemical resistance and high temperature resistance and is suitable for strong acid, strong alkali or high temperature chemical environments. Fluororubber can maintain physical properties at high temperatures. EPDM rubber has good heat resistance and weather resistance and is suitable for mild chemical environments.

[0065] In some embodiments of the present invention, reference Figure 2 As shown, the interface hole 224 may include a first sub-interface 2241 and a second sub-interface 2242. The first sub-interface 2241 is connected to the inlet end of the fluid channel through the medium inlet 131, and the second sub-interface 2242 is connected to the outlet end of the fluid channel through the medium outlet 132. The pipeline for providing reactants can pass through the second outer frame layer 221, the second outer buffer layer 223 and the second insulating layer 222 in sequence through the first sub-interface 2241, and is connected to the inlet end of the fluid channel through an inverted cone joint. During the flow of the reactants in the fluid channel, the reactants receive light irradiated from the light-transmitting conductive plate 11 and electrical energy between the light-transmitting conductive plate 11 and the electrode plate 13. The reactants flow to the outlet end of the fluid channel while receiving the action of light and electrical energy in the fluid channel, and then flow out through the second sub-interface 2242 through the second insulating layer 222, the second outer buffer layer 223 and the second outer frame layer 221 in sequence.

[0066] In some specific embodiments of the present invention, the first outer frame layer 211, the first outer buffer layer 214, the first insulating layer 212, the inner buffer layer 213, the light-transmitting conductive plate 11, the microchannel plate 12, the electrode plate 13, the second insulating layer 222, the second outer buffer layer 223 and the second mounting groove 2221 are stacked in sequence to form a multi-layer fastening structure, and a certain layer of the structure can be directly replaced to achieve the maintenance effect, which is convenient for maintenance.

[0067] The size of the fluid channel is in the range of 100μm to 2mm, and the liquid content and the fluid channel structure can be changed by replacing the microchannel plate 12. The material of the light-transmitting conductive plate 11 is FTO glass, and its thickness is in the range of 1mm to 2mm. The thickness of its surface conductive layer can be adjusted according to the current density requirements of the reaction system. The material of the electrode plate 13 is graphite, and the thickness of the electrode plate 13 is 2mm. The material of the inner buffer layer 213, the first outer buffer layer 214 and the second outer buffer layer 223 is silicone, and the thickness is in the range of 0.1mm to 2mm. The material of the first outer frame layer 211 and the second outer frame layer 221 are both stainless steel, and the thickness is above 2.5mm, which can be adjusted according to the number of layers and the fastening conditions of the multiple layers.

[0068] According to the electro-optical microchannel reactor 10 of the embodiment of the present invention, the advantages of electrocatalysis and photocatalysis are cleverly combined through the innovative design of the integrated electro-optical microchannel reactor 10, the structure of the fluid channel is optimized, and the ohmic drop between electrodes and the light flux attenuation effect are reduced. At the same time, materials with high chemical stability and conductivity are selected, such as FTO glass, PTFE and graphite electrodes, to ensure the corrosion resistance of the electro-optical microchannel reactor 10 in a variety of chemical environments, which is beneficial to improving the service life of the electro-optical microchannel reactor 10. By optimizing the design of the electro-optical microchannel reactor 10 and adopting a multi-layer tightly fixed method, each component of the electro-optical microchannel reactor 10 can be easily replaced, thereby reducing the manufacturing and maintenance costs of the electro-optical microchannel reactor 10 and ensuring the high stability of the electro-optical microchannel reactor 10.

[0069] The precise design of the fluid channel (channel width is 100μm to 1mm) increases the contact area between the reactants and the electrodes (i.e., the transparent conductive plate 11 and the electrode plate 13), and enhances the mass transfer and heat transfer efficiency, thereby greatly improving the reaction rate and repeatability. The electro-optical microchannel reactor 10 uses moderately priced FTO glass, graphite electrodes and PTFE materials, and reduces production and maintenance costs through a multi-layer fastening structure. The electro-optical microchannel reactor 10 of this embodiment has good economy, and the replaceable microchannel plate 12 can ensure that the reactants can be evenly distributed between the light source and the electrode, and also optimizes the mass transfer and heat transfer efficiency, which can solve the problem of uneven local reactions.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0071] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An electro-optical microchannel reactor, characterized in that: include: A core component (1), the core component (1) comprising: a light-transmitting conductive plate (11), a microchannel plate (12) and an electrode plate (13); the microchannel plate (12) is provided with a fluid groove (121); in the thickness direction of the microchannel plate (12), the fluid groove (121) penetrates the microchannel plate (12); the microchannel plate (12) is sandwiched between the light-transmitting conductive plate (11) and the electrode plate (13); the light-transmitting conductive plate (11), the fluid groove (121) and the electrode plate (13) jointly define a fluid channel; A shell component (2), the shell component (2) being sleeved on the outer side of the core component (1), the shell component (2) having a light-transmitting hole (215) and an interface hole (224), the light-transmitting hole (215) being opposite to the light-transmitting conductive plate (11), and the interface hole (224) being connected to both ends of the fluid channel; A conductive component, the conductive component comprising an anode conductor and a cathode conductor, one of the anode conductor and the cathode conductor being arranged through the shell component (2) and connected to the light-transmitting conductive plate (11), and the other of the anode conductor and the cathode conductor being arranged through the shell component (2) and connected to the electrode plate (13).

2. The electro-optical microchannel reactor according to claim 1, characterized in that: The fluid grooves (121) are arranged in a zigzag manner on the microchannel plate (12).

3. The electro-optical microchannel reactor according to claim 1, characterized in that: The light-transmitting conductive plate (11) or the electrode plate (13) is provided with a medium inlet (131), and the interface hole (224) is connected to one end of the fluid channel through the medium inlet (131); The light-transmitting conductive plate (11) or the electrode plate (13) is provided with a medium outlet (132), and the interface hole (224) is connected to the other end of the fluid channel through the medium outlet (132).

4. The electro-optical microchannel reactor according to claim 1, characterized in that: The material of the light-transmitting conductive plate (11) is at least one of FTO glass and ITO glass; Alternatively, the light-transmitting conductive plate (11) comprises: a glass layer and a coating layer which are stacked, the glass layer is made of at least one of FTO glass or ITO glass, and the coating layer is made of at least one of platinum, titanium dioxide, and tungsten trioxide.

5. The electro-optical microchannel reactor according to claim 1, characterized in that: The material of the electrode plate (13) is at least one of graphite, platinum, titanium, nickel and stainless steel.

6. The electro-optical microchannel reactor according to claim 1, characterized in that: The material of the microchannel plate (12) is at least one of PTFE, PEEK and PP.

7. The electro-optical microchannel reactor according to any one of claims 1 to 6, characterized in that: The housing assembly (2) comprises: A first clamping member (21), the first clamping member (21) being located on a side of the light-transmitting conductive plate (11) away from the microchannel plate (12), the first clamping member (21) having the light-transmitting hole (215); a second clamping member (22), the second clamping member (22) being located on a side of the electrode plate (13) away from the microchannel plate (12), the second clamping member (22) having the interface hole (224); A fastener, wherein the first clamping member (21) and the second clamping member (22) are connected via the fastener.

8. The electro-optical microchannel reactor according to claim 7, characterized in that: The first clamping member (21) comprises: a first outer frame layer (211) and a first insulating layer (212) which are stacked, a first mounting groove (2121) being provided on a side of the first insulating layer (212) facing the light-transmitting conductive plate (11), and at least a portion of the light-transmitting conductive plate (11) being located in the first mounting groove (2121); The second clamping member (22) comprises: a second outer frame layer (221) and a second insulating layer (222) which are stacked, and a second mounting groove (2221) is provided on a side of the second insulating layer (222) facing the electrode plate (13), and at least a portion of the electrode plate (13) is located in the second mounting groove (2221).

9. The electro-optical microchannel reactor according to claim 8, characterized in that: The first clamping member (21) further comprises: an inner buffer layer (213), the inner buffer layer (213) being located in the first mounting groove (2121), and the inner buffer layer (213) overlapping the edge of the light-transmitting conductive plate (11).

10. The electro-optical microchannel reactor according to claim 9, characterized in that: The first clamping member (21) further comprises: a first outer buffer layer (214), wherein the first outer buffer layer (214) is sandwiched between the first outer frame layer (211) and the first insulating layer (212); The second clamping member (22) further comprises: a second outer buffer layer (223), wherein the second outer buffer layer (223) is sandwiched between the second outer frame layer (221) and the second insulating layer (222).

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