Multi-channel photo-thermal integrated catalytic reactor and working method thereof
By designing a multi-channel photothermal integrated catalytic reactor, the problem of low efficiency in single-channel photocatalytic reactors was solved, enabling efficient activation and performance testing of multiple samples, improving experimental efficiency and data accuracy, and meeting the needs of high-throughput catalytic research.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SOUTH CHINA UNIV OF TECH
- Filing Date
- 2025-11-27
- Publication Date
- 2026-06-23
Smart Images
Figure CN121446418B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of photothermal catalysis technology, and in particular to a multi-channel integrated photothermal catalytic reactor and its operating method. Background Technology
[0002] In gas-solid phase catalytic reaction research, catalyst activation and reaction performance testing are two crucial steps. Existing photocatalytic reactors are mostly single-channel designs, capable of processing only one catalyst at a time. Since catalysts typically require prolonged high-temperature activation under a specific atmosphere, the single-channel approach necessitates processing multiple samples sequentially, resulting in long experimental cycles, low efficiency, and difficulty in rapidly and reliably comparing the performance of various catalysts.
[0003] In recent years, although some multi-channel heating devices have been proposed for parallel heat treatment of multiple samples, their functions are mainly limited to thermocatalysis and cannot meet the needs of photocatalysis or photothermal catalysis experiments. In the study of photothermal coupled catalysis mechanisms, how to balance efficient activation of multiple samples with photocatalytic performance testing remains a technical challenge. Existing technologies still have significant shortcomings in terms of the feasibility of multi-channel photocatalysis experiments, temperature control accuracy, experimental safety, and data reliability.
[0004] Therefore, there is an urgent need for a novel reaction device that can achieve efficient catalyst activation under multi-channel conditions and combine it with a light source for photocatalytic and photothermal catalytic performance testing, so as to improve experimental efficiency, ensure data accuracy, and meet the needs of high-throughput catalysis research. Summary of the Invention
[0005] The present invention aims to at least solve one of the aforementioned technical problems existing in the prior art. To this end, this application proposes a multi-channel photothermal integrated catalytic reactor, which can simultaneously activate samples under different atmospheres and temperatures, thereby comparing the catalytic performance of samples under different conditions.
[0006] This application also proposes a working method for the aforementioned multi-channel photothermal integrated catalytic reactor.
[0007] The multi-channel photothermal integrated catalytic reactor according to a first aspect embodiment of this application includes:
[0008] The reactor body includes at least four independent reaction chambers, each made of an inert material. The two ends of each reaction chamber are an inlet and an outlet, respectively. A catalyst support structure is provided inside each reaction chamber.
[0009] A temperature control system includes heating furnaces, the number of which is the same as the number of reaction chambers and they are arranged in a one-to-one correspondence, and the heating furnaces cover the reaction chambers;
[0010] A photoexcitation system includes a laser and a displacement mechanism, wherein the displacement mechanism drives the laser to move between the various reaction cavities, and the laser emitted by the laser can penetrate into the reaction cavity;
[0011] A gas delivery system, which is connected to the gas inlet of each of the reaction chambers to deliver gas;
[0012] A detection system is connected to the gas outlet of each of the reaction chambers to analyze the exhaust gas after the reaction.
[0013] The multi-channel photothermal integrated catalytic reactor according to the embodiments of this application has at least the following beneficial effects: by setting at least four independent reaction chambers, multiple independent catalytic experiments can be carried out, thereby providing a more intuitive analysis of the experimental effects of the catalytic reaction under different conditions. Moreover, the temperature control system and the photoexcitation system can independently transfer heat and light energy to each reaction chamber, enabling the conduct of thermocatalysis, photocatalysis, or photothermal catalysis experiments to achieve different experimental objectives.
[0014] According to some embodiments of this application, the reaction chamber includes a first pipe section and a second pipe section that are interconnected. The internal diameter of the first pipe section is larger than the internal diameter of the second pipe section. The catalyst support structure is disposed at the junction of the first pipe section and the second pipe section. The end of the first pipe section is the gas inlet end, and the end of the second pipe section is the gas outlet end.
[0015] According to some embodiments of this application, the catalyst support structure is a quartz wool block, which is plugged at the connection between the first pipe segment and the second pipe segment, and the catalyst is filled on the quartz wool block.
[0016] According to some embodiments of this application, the temperature control system further includes a temperature sensor and a temperature controller. There are multiple temperature sensors, which are respectively disposed in each reaction chamber, and each temperature sensor is electrically connected to the temperature controller.
[0017] According to some embodiments of this application, a transparent optical window is provided at the end of the reaction cavity, through which the laser emitted by the laser can enter.
[0018] According to some embodiments of this application, the displacement mechanism includes a lifting seat, a rotating seat, a translation stage, and a support structure. The rotating seat is mounted on the lifting seat, the translation stage is mounted on the rotating seat, the support structure is mounted on the translation stage, and the laser is mounted on the support structure. The lifting seat drives the rotating seat to move in the vertical direction, the rotating seat drives the translation stage to rotate, and the translation stage drives the support structure to translate.
[0019] According to some embodiments of this application, the photoexcitation system further includes an infrared thermal imager, which is oriented toward the sample and is used to collect temperature data of the sample after it has been irradiated by a laser.
[0020] According to some embodiments of this application, the gas delivery system includes a gas storage tank, an inlet valve group, and a bubbler connected to each other. The gas from the gas storage tank is output to the inlet valve group, which can directly output the gas to each of the reaction chambers, or the inlet valve group outputs the gas to the bubbler to mix with methanol and water vapor before outputting the mixed gas to each of the reaction chambers.
[0021] According to some embodiments of this application, the gas delivery system further includes a flow controller, the number of which is consistent with the number of the reaction chambers and is set in a one-to-one correspondence. The flow controller is disposed between the inlet valve group and the reaction chamber, and the flow controller is used to control the amount of gas output to the reaction chamber.
[0022] The working method according to the second aspect of the present application is applied to the above-mentioned multi-channel photothermal integrated catalytic reactor, including a thermocatalytic experimental method, a photocatalytic experimental method, and a photothermal catalytic experimental method.
[0023] The thermocatalytic experimental method includes:
[0024] Add a catalyst to the catalyst support structure;
[0025] Install the reaction chamber and seal it;
[0026] Start the heating furnace to raise the temperature of each of the reaction chambers;
[0027] The gas delivery system is activated, and the gas delivery system supplies gas to each of the reaction chambers, where the gas reacts under the action of a catalyst.
[0028] The gas after the reaction is discharged through the outlet to the detection system, which detects and analyzes the gas after the reaction.
[0029] The photocatalytic experimental method includes:
[0030] Add a catalyst to the catalyst support structure;
[0031] Install the reaction chamber and seal it;
[0032] The optical excitation system is activated, and the laser projects a laser beam onto the reaction cavity;
[0033] The gas delivery system is activated, and the gas delivery system supplies gas to each of the reaction chambers, where the gas reacts under the action of a catalyst.
[0034] The gas after the reaction is discharged through the outlet to the detection system, which detects and analyzes the gas after the reaction.
[0035] The photothermal catalysis experimental method includes:
[0036] Add a catalyst to the catalyst support structure;
[0037] Install the reaction chamber and seal it;
[0038] Start the heating furnace to raise the temperature of each of the reaction chambers;
[0039] The optical excitation system is activated, and the laser projects a laser beam onto the reaction cavity;
[0040] The gas delivery system is activated, and the gas delivery system supplies gas to each of the reaction chambers, where the gas reacts under the action of a catalyst.
[0041] The reacted gas is discharged through the outlet to the detection system, which detects and analyzes the reacted gas.
[0042] The working method according to the embodiments of this application has at least the following beneficial effects: by turning on and off the heating furnace and the photoexcitation system, it is possible to select to carry out thermal catalysis experiments, photocatalysis experiments or photothermal catalysis experiments, and it is possible to simultaneously activate samples under different atmospheres and temperatures, and to carry out more types of catalytic experiments.
[0043] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0044] The accompanying drawings are used to provide a further understanding of the technical solutions disclosed in this application and form part of the specification. They are used together with the embodiments disclosed in this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions disclosed in this application.
[0045] Figure 1 This is a three-dimensional view of the multi-channel photothermal integrated catalytic reactor according to the first aspect of this application;
[0046] Figure 2 This is a schematic diagram of the structure of the multi-channel photothermal integrated catalytic reactor according to the first aspect of this application;
[0047] Figure 3This is a schematic diagram of the reaction chamber in the multi-channel photothermal integrated catalytic reactor according to the first aspect of this application.
[0048] Reference numerals: 110-Reaction chamber, 111-Inlet, 112-Outlet, 113-Catalyst support structure, 1131-Catalyst, 114-First pipe section, 115-Second pipe section, 116-Optical window, 210-Heating furnace, 220-Temperature sensor, 310-Laser, 321-Lifting seat, 322-Rotating seat, 323-Translation stage, 324-Support structure, 330-Infrared thermal imager. Detailed Implementation
[0049] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0050] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0051] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0052] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.
[0053] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0054] In gas-solid phase catalytic reaction research, catalyst activation and reaction performance testing are two crucial steps. Existing photocatalytic reactors are mostly single-channel designs, capable of processing only one catalyst at a time. Since catalysts typically require prolonged high-temperature activation under a specific atmosphere, the single-channel approach necessitates processing multiple samples sequentially, resulting in long experimental cycles, low efficiency, and difficulty in rapidly and reliably comparing the performance of various catalysts.
[0055] In recent years, although some multi-channel heating devices have been proposed for parallel heat treatment of multiple samples, their functions are mainly limited to thermocatalysis and cannot meet the needs of photocatalysis or photothermal catalysis experiments. In the study of photothermal coupled catalysis mechanisms, how to balance efficient activation of multiple samples with photocatalytic performance testing remains a technical challenge. Existing technologies still have significant shortcomings in terms of the feasibility of multi-channel photocatalysis experiments, temperature control accuracy, experimental safety, and data reliability.
[0056] Therefore, there is an urgent need for a novel reaction device that can achieve efficient catalyst activation under multi-channel conditions and combine it with a light source for photocatalytic and photothermal catalytic performance testing, so as to improve experimental efficiency, ensure data accuracy, and meet the needs of high-throughput catalysis research.
[0057] To address this issue, this application proposes a multi-channel photothermal integrated catalytic reactor. By setting up at least four independent reaction chambers, multiple independent catalytic experiments can be conducted, allowing for a more intuitive analysis of the experimental effects of the catalytic reaction under different conditions. Furthermore, the temperature control system and photoexcitation system can independently transfer heat and light energy to each reaction chamber, enabling the conduct of thermocatalysis, photocatalysis, or photothermal catalysis experiments to achieve different experimental objectives.
[0058] In addition, this application also proposes a working method for the above-mentioned multi-channel photothermal integrated catalytic reactor. By turning on and off the heating furnace and the photoexcitation system, it is possible to select to carry out thermal catalysis, photocatalysis or photothermal catalysis experiments. Moreover, it can realize the simultaneous activation of samples under different atmospheres and temperatures, and can carry out more types of catalytic experiments.
[0059] The multi-channel photothermal integrated catalytic reactor in the first aspect of this application includes a reactor body, a temperature control system, a photoexcitation system, a gas supply system, and a detection system. The reactor body primarily serves to conduct the catalytic reaction, providing a sealed environment for the reaction. The temperature control system heats the reactor body to activate the sample, and the photoexcitation system projects a laser beam onto the reactor body for photocatalytic experiments. Photothermal catalytic experiments can be performed when both the temperature control system and the photoexcitation system are activated simultaneously. The gas supply system delivers gas to the reactor body for the reaction, and the detection system collects the reacted gas for subsequent detection and analysis.
[0060] Specifically, refer to Figure 1 and Figure 2 The reactor body includes at least four independent reaction chambers 110. The reaction chambers 110 are made of an inert material to avoid the material of the reaction chambers 110 affecting the catalytic experiment process. In this embodiment, the reaction chamber 110 is specifically a quartz tube structure with excellent light transmittance. (Refer to...) Figure 3 The reaction chamber 110 has an inlet end 111 and an outlet end 112 at its two ends, and a catalyst support structure 113 is disposed inside the reaction chamber 110. The catalyst support structure 113 is used to support the catalyst 1131, so that the catalyst 1131 is fixed inside the reaction chamber 110 and comes into full contact with the flowing gas to carry out a catalytic reaction. During the experiment, the gas enters the reaction chamber 110 from the inlet end 111 and reacts fully with the catalyst 1131 therein. Then the gas after the reaction flows out from the outlet end 112.
[0061] It is easy to understand that, in order to avoid other structures, the air intake pipe in this embodiment is located on one side of the air intake end 111, and the air outlet pipe is located on one side of the air outlet end 112.
[0062] The temperature control system includes heating furnaces 210, the number of which is the same as the number of reaction chambers 110 and they are arranged in a one-to-one correspondence. The heating furnaces 210 cover the reaction chambers 110, so that heat can be evenly transferred from the surface of the reaction chambers 110 to their interior, thus achieving uniform heating. The heating furnace 210 is specifically a tubular heating furnace.
[0063] The photoexcitation system includes a laser 310 and a displacement mechanism. The displacement mechanism drives the laser 310 to move between the various reaction cavities 110, allowing the laser emitted by the laser 310 to penetrate into each reaction cavity 110. Thus, the displacement mechanism can be used to adjust the laser 310 to irradiate a portion of the reaction cavities 110 for photocatalytic experiments.
[0064] The gas supply system is connected to the gas inlet 111 of each reaction chamber 110 to supply gas and serve as the raw material for the reaction. The detection system is connected to the gas outlet 112 of each reaction chamber 110 to analyze the gas discharged after the reaction.
[0065] Furthermore, sealing strips are provided at all seams in the reaction chamber 110 to improve the sealing performance of the reaction chamber 110.
[0066] Furthermore, the reaction chamber 110 includes a first pipe section 114 and a second pipe section 115 that are interconnected. The end of the first pipe section 114 is the gas inlet 111, and the end of the second pipe section 115 is the gas outlet 112. The gas first enters the first pipe section 114 and then enters the second pipe section 115. The internal diameter of the first pipe section 114 is larger than that of the second pipe section 115. On the one hand, the larger diameter of the first pipe section 114 is more suitable for mixing the gas evenly, preparing for sufficient contact between the mixed gas and the catalyst 1131. On the other hand, the larger diameter of the first pipe section 114 can receive more light, thus facilitating the full entry of light in photocatalysis or photothermal catalysis experiments and reducing light loss during irradiation. The catalyst support structure 113 is located at the junction of the first pipe section 114 and the second pipe section 115. The mixed gas passes through the catalyst support structure 113 and reacts fully with the catalyst 1131 on it. The reacted gas is discharged outward through the second pipe section 115.
[0067] Furthermore, in some embodiments, the catalyst support structure 113 is a mesh structure, and the catalyst 1131 is placed on the mesh catalyst support structure 113. The gas passes through the mesh and simultaneously comes into full contact with the catalyst 1131, completing the catalytic experiment. In this embodiment, the catalyst support structure 113 is a quartz wool block, which is an inert and porous quartz material. The catalyst 1131 is filled on the quartz wool block, which is plugged at the connection between the first pipe section 114 and the second pipe section 115.
[0068] Furthermore, the temperature control system also includes temperature sensors 220 and a temperature controller. Multiple temperature sensors 220 are installed in each reaction chamber 110, and each temperature sensor 220 can be a thermocouple. Each temperature sensor 220 is electrically connected to the temperature controller, which monitors the temperature within each reaction chamber 110 and regulates the heating temperature of the furnace 210. Therefore, when analyzing the effect of temperature on the catalytic reaction, the temperature of each reaction chamber 110 can be set to a different temperature; or when analyzing the effect of other factors on the catalytic reaction, the temperature of each reaction chamber 110 can be adjusted to be uniform to avoid the influence of temperature on the experimental results.
[0069] Furthermore, a transparent optical window 116 is provided at the end of the reaction chamber 110, allowing the laser emitted by the laser 310 to enter through the optical window 116. This allows the laser energy to act on the gas and catalyst 1131 within the reaction chamber 110, influencing the catalytic reaction. Specifically, the optical window 116 is made of CaF2 or quartz material, possessing high transmittance characteristics.
[0070] Specifically, the displacement mechanism includes a lifting seat 321, a rotating seat 322, a translation stage 323, and a support structure 324. The rotating seat 322 is mounted on the lifting seat 321, the translation stage 323 is mounted on the rotating seat 322, the support structure 324 is mounted on the translation stage 323, and the laser 310 is mounted on the support structure 324. The lifting seat 321 drives the rotating seat 322 to move vertically, the rotating seat 322 drives the translation stage 323 to rotate, and the translation stage 323 drives the support structure 324 to translate. Thus, the laser 310 can move vertically and horizontally, facilitating its movement to each reaction cavity 110.
[0071] Furthermore, the photoexcitation system also includes an infrared thermal imager 330, which is oriented towards the sample and used to collect temperature data of the sample after laser irradiation, thereby enabling closed-loop control of the output power of the laser 310. Therefore, when studying the effect of light on the catalytic reaction, the power of the laser 310 can be adjusted to change the light intensity on different reaction chambers 110; or, when analyzing the influence of other factors on the catalytic reaction, the light intensity projected onto each reaction chamber 110 can be adjusted to be consistent to avoid the influence of light factors on the experimental results.
[0072] Furthermore, the gas delivery system includes interconnected gas storage tanks, inlet valve assemblies, and bubblers. The gas from the gas storage tanks is output to the inlet valve assemblies, which can directly output the gas to each reaction chamber; or the inlet valve assemblies output the gas to the bubbler to mix with methanol and water vapor before outputting the mixed gas to each reaction chamber.
[0073] Specifically, the gas storage tank can transport different types of gases and mixed gases to the inlet valve assembly. The inlet valve assembly can directly transport single-component or mixed gases of the same or different types into the reaction chamber, or it can transport a methanol-water vapor mixture into the reaction chamber via a bubbler. The bubbler enables multiphase reactions from liquid-solid to gas-solid phases. It mixes methanol and water with the gas output from the gas storage tank, or it bubblees out other volatile liquids with high saturated vapor pressure and generates a mixed vapor that enters the inlet valve assembly.
[0074] Furthermore, the gas storage tank can store and output high-purity ammonia, argon, hydrogen, or methane, and a bubbler can output a mixture of methanol vapor and water vapor. When investigating the effect of gas composition on the catalytic reaction, the type of gas output to different reaction chambers 110 can be controlled by adjusting the inlet valve assembly; or, when analyzing the influence of other factors on the catalytic reaction, the type of gas input to each reaction chamber 110 can be kept consistent to avoid the influence of gas type factors on the experimental results.
[0075] Furthermore, the gas supply system also includes flow controllers. The number of flow controllers is the same as the number of reaction chambers 110 and they are set one-to-one. The flow controllers are set between the inlet valve group and the reaction chambers 110. The flow controllers are used to control the amount of gas output to the reaction chambers 110, thereby regulating the total amount of gas participating in the reaction in each reaction chamber 110.
[0076] Furthermore, the detection system includes at least one of gas chromatography (GC) and mass spectrometry (MS) analyzers, and the post-reaction gases of each reaction chamber 110 are independently introduced into the detection system to avoid mutual interference that could affect the experimental results.
[0077] The working method in the second aspect of this application is applied to the above-mentioned multi-channel photothermal integrated catalytic reactor, including a thermocatalytic experimental method, a photocatalytic experimental method, and a photothermal catalytic experimental method.
[0078] The thermocatalytic experimental methods include:
[0079] S110. Add catalyst 1131 to catalyst support structure 113;
[0080] S120. Install and seal the reaction chamber 110;
[0081] S130. Start the heating furnace 210 to raise the temperature of each reaction chamber 110;
[0082] S140. Start the gas supply system, which delivers gas to each reaction chamber 110, and the gas reacts under the action of catalyst 1131;
[0083] S150. The gas after the reaction is discharged to the detection system through the gas outlet 112. The detection system detects and analyzes the gas after the reaction.
[0084] Photocatalytic experimental methods include:
[0085] S210. Add catalyst 1131 to catalyst support structure 113;
[0086] S220. Install and seal the reaction chamber 110;
[0087] S230. Start the optical excitation system, and the laser 310 projects a laser beam onto the reaction cavity 110;
[0088] S240. Start the gas supply system, which delivers gas to each reaction chamber 110, and the gas reacts under the action of catalyst 1131;
[0089] S250. The gas after the reaction is discharged to the detection system through the gas outlet 112. The detection system detects and analyzes the gas after the reaction.
[0090] Photothermal catalysis experimental methods include:
[0091] S310. Add catalyst 1131 to catalyst support structure 113;
[0092] S320. Install and seal the reaction chamber 110;
[0093] S330. Start the heating furnace 210 to raise the temperature of each reaction chamber 110;
[0094] S340. Start the optical excitation system, and laser 310 projects laser light into reaction cavity 110;
[0095] S350. Start the gas supply system, which delivers gas to each reaction chamber 110, and the gas reacts under the action of catalyst 1131;
[0096] S360. The gas after the reaction is discharged to the detection system through the gas outlet 112. The detection system detects and analyzes the gas after the reaction.
[0097] Furthermore, when conducting photocatalytic experiments, the heating furnace 210 can also be activated to promote sample activation, thereby meeting different sample processing needs and obtaining better experimental results.
[0098] In accordance with the principle of single-variable experiments, when conducting comparative experiments on a single factor, all other factors within each reaction chamber 110 should be kept consistent. For example, when conducting comparative experiments on catalyst 1131, the types of catalyst 1131 in each reaction chamber 110 should be differentiated, while the temperature, light intensity, gas type, and gas output should remain consistent. When conducting comparative experiments on gas types, the types of gases introduced into each reaction chamber 110 should be differentiated, while the type of catalyst 1131, the amount of catalyst 1131 filled, the temperature, light intensity, and gas output should remain consistent. Comparative experiments on other factors should follow the above principles and will not be elaborated further here.
[0099] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.
Claims
1. A multi-channel photothermal integrated catalytic reactor, characterized in that, include: The reactor body includes at least four independent reaction chambers, each made of an inert material. The two ends of each reaction chamber are an inlet and an outlet, respectively. A catalyst support structure is provided inside each reaction chamber. A temperature control system includes heating furnaces, the number of which is the same as the number of reaction chambers and they are arranged in a one-to-one correspondence, and the heating furnaces cover the reaction chambers; A photoexcitation system includes a laser and a displacement mechanism, wherein the displacement mechanism drives the laser to move between the various reaction cavities, and the laser emitted by the laser can penetrate into the reaction cavity; A gas delivery system, which is connected to the gas inlet of each of the reaction chambers to deliver gas; A detection system is connected to the gas outlet of each of the reaction chambers to analyze the exhaust gas after the reaction. The reaction chamber includes a first pipe section and a second pipe section that are interconnected. The internal diameter of the first pipe section is larger than the internal diameter of the second pipe section. The catalyst support structure is disposed at the junction of the first pipe section and the second pipe section. The end of the first pipe section is the gas inlet end, and the end of the second pipe section is the gas outlet end. The displacement mechanism includes a lifting seat, a rotating seat, a translation stage, and a support structure. The rotating seat is mounted on the lifting seat, the translation stage is mounted on the rotating seat, the support structure is mounted on the translation stage, and the laser is mounted on the support structure. The lifting seat drives the rotating seat to move vertically, the rotating seat drives the translation stage to rotate, and the translation stage drives the support structure to translate. The gas delivery system includes interconnected gas storage tanks, inlet valve groups, and bubblers. Gas from the gas storage tanks is output to the inlet valve groups, which can directly output gas to each of the reaction chambers, or the inlet valve groups can output gas to the bubblers to mix with methanol and water vapor before outputting the mixed gas to each of the reaction chambers.
2. The multi-channel photothermal integrated catalytic reactor according to claim 1, characterized in that: The catalyst support structure is a quartz wool block, which is inserted at the connection between the first pipe section and the second pipe section, and the catalyst is filled on the quartz wool block.
3. The multi-channel photothermal integrated catalytic reactor according to claim 1, characterized in that: The temperature control system also includes temperature sensors and a temperature controller. There are multiple temperature sensors, which are respectively installed in each reaction chamber, and each temperature sensor is electrically connected to the temperature controller.
4. The multi-channel photothermal integrated catalytic reactor according to claim 1, characterized in that: The end of the reaction chamber is provided with a transparent optical window, through which the laser emitted by the laser can enter.
5. The multi-channel photothermal integrated catalytic reactor according to claim 1, characterized in that: The photoexcitation system also includes an infrared thermal imager, which is oriented toward the sample and is used to collect temperature data of the sample after it has been irradiated by a laser.
6. The multi-channel photothermal integrated catalytic reactor according to claim 1, characterized in that: The gas delivery system also includes a flow controller. The number of flow controllers is the same as the number of reaction chambers and they are set one-to-one. The flow controller is located between the inlet valve group and the reaction chamber. The flow controller is used to control the amount of gas output to the reaction chamber.
7. A method for operating the multi-channel photothermal integrated catalytic reactor according to any one of claims 1 to 6, characterized in that, This includes thermocatalysis experimental methods, photocatalysis experimental methods, and photothermal catalysis experimental methods; The thermocatalytic experimental method includes: Add a catalyst to the catalyst support structure; Install the reaction chamber and seal it; Start the heating furnace to raise the temperature of each of the reaction chambers; The gas delivery system is activated, and the gas delivery system supplies gas to each of the reaction chambers, where the gas reacts under the action of a catalyst. The gas after the reaction is discharged through the outlet to the detection system, which detects and analyzes the gas after the reaction. The photocatalytic experimental method includes: Add a catalyst to the catalyst support structure; Install the reaction chamber and seal it; The optical excitation system is activated, and the laser projects a laser beam onto the reaction cavity; The gas delivery system is activated, and the gas delivery system supplies gas to each of the reaction chambers, where the gas reacts under the action of a catalyst. The gas after the reaction is discharged through the outlet to the detection system, which detects and analyzes the gas after the reaction. The photothermal catalysis experimental method includes: Add a catalyst to the catalyst support structure; Install the reaction chamber and seal it; Start the heating furnace to raise the temperature of each of the reaction chambers; The optical excitation system is activated, and the laser projects a laser beam onto the reaction cavity; The gas delivery system is activated, and the gas delivery system supplies gas to each of the reaction chambers, where the gas reacts under the action of a catalyst. The reacted gas is discharged through the outlet to the detection system, which detects and analyzes the reacted gas.