High-throughput evaluation device and evaluation method suitable for heterogeneous thermocatalytic system
By designing a high-throughput evaluation device suitable for heterogeneous thermocatalytic systems, and utilizing a reactor, heating platform, and infrared thermal imager, rapid and large-scale screening of catalysts was achieved, solving the problem of low evaluation efficiency in existing technologies and realizing highly efficient catalyst evaluation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ORDOS LABORATORY
- Filing Date
- 2025-12-04
- Publication Date
- 2026-04-24
AI Technical Summary
Existing technologies are insufficient for high-speed and large-scale screening of catalysts and are incompatible with continuous and batch evaluation methods, resulting in low efficiency in catalyst evaluation.
Design a high-throughput evaluation device suitable for heterogeneous thermocatalytic systems, including a reactor, a heating platform, a temperature control system, and an infrared thermal imager. It can perform continuous and intermittent evaluations simultaneously. It can achieve efficient screening by capturing the temperature changes of catalyst sites in real time through a two-dimensional catalyst array and an infrared thermal imager.
It enables rapid and large-scale screening of catalysts, improves evaluation efficiency, is compatible with multiple evaluation methods, has wide applicability, has a simple process that is easy to automate, and provides sufficient data collection.
Smart Images
Figure CN121917601A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of catalyst evaluation technology, and in particular to a high-throughput evaluation device and method suitable for heterogeneous thermocatalytic systems. Background Technology
[0002] High-throughput experimental screening techniques for catalytic oxidation processes have developed novel pathways distinct from traditional methods, enabling catalyst screening under specific temperature conditions. Traditional performance evaluation methods for catalytic oxidation catalysts typically involve loading particulate catalysts into quartz reaction tubes, conducting the reaction under controlled temperature and atmosphere, and then analyzing the tail gas composition using chromatography or other quantitative detection methods, with the feed gas conversion rate at different temperatures serving as the evaluation index. This evaluation method and index are difficult to directly apply to high-throughput evaluation. Therefore, numerous studies have utilized the enthalpy change of chemical reactions, developing high-throughput evaluation methods employing techniques such as infrared thermography.
[0003] Infrared thermal imaging is primarily used in heterogeneous thermocatalytic oxidation systems with significant thermal effects. The reaction gas reacts on the catalyst surface, generating heat that causes a temperature rise at the catalyst site. This heat is directly proportional to the molar amount of reactant gas consumed and the conversion rate. Therefore, by capturing the temperature rise at the catalyst site, the conversion rate of the catalyst under the given test conditions can be reflected, thus evaluating the catalyst's performance. One thermal imaging evaluation system places a catalyst chip coating in an ultra-high vacuum reaction chamber. After heating to a baseline temperature, the reaction gas is dynamically introduced into the chamber. The temperature of the catalyst chip coating is monitored using an infrared thermal imager, enabling parallel thermal imaging detection of the CO (carbon monoxide) oxidation reaction on a planar catalyst. However, existing catalyst evaluation equipment is limited by evaluation conditions and is unsuitable for evaluating high-speed and large-scale catalysts, nor can it accommodate both continuous and intermittent evaluation methods. Significant progress remains to be made in developing an infrared thermal imaging evaluation method for rapid and large-scale thermocatalytic oxidation catalysts. Summary of the Invention
[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, one objective of this invention is to provide a high-throughput evaluation device suitable for heterogeneous thermocatalytic systems, capable of high-speed and large-scale catalyst screening, employing both continuous and batch evaluation methods, with a simple process and wide applicability.
[0005] A high-throughput evaluation device for heterogeneous thermocatalytic systems according to a first aspect of the present invention includes: a reactor, a heating stage, a temperature control system, and an infrared thermal imager.
[0006] The bottom of the reactor is suitable for placing a two-dimensional catalyst array prepared on the same planar substrate. The inlet pipe and outlet pipe are respectively connected to the opposite sides of the reactor. The top of the reactor is provided with an infrared window facing the two-dimensional catalyst array. The reactor is placed on the heating platform for heating the entire reactor. The temperature control system is coupled to the heating platform and is used to control the bottom temperature of the reactor, while simultaneously measuring and recording the temperature below the two-dimensional catalyst array in real time. The infrared thermal imager is positioned above the infrared display window to capture the temperature changes at each catalyst site in the two-dimensional catalyst array in real time.
[0007] The high-throughput evaluation device for heterogeneous thermocatalytic systems in this invention has the following advantages: First, it can systematically and rapidly screen catalysts for catalytic oxidation reactions with significant thermal effects, which is more efficient than traditional catalyst screening methods. Multiple catalysts, such as hundreds of catalysts, are prepared in parallel on the same planar substrate to form a two-dimensional catalyst array. The catalysts at each site simultaneously contact the continuously flowing reaction gas to undergo thermocatalytic reactions, allowing for simultaneous testing of the performance of multiple catalysts in a single experiment. Second, it is compatible with both continuous and batch evaluation, making it suitable for a wide range of applications. Third, it offers a rich selection of reactions and broad applicability. The internal temperature of the reactor can be controlled at different set temperatures through a temperature control system. As long as the temperature change of the catalytic reaction can be captured by an infrared thermal imager, its catalytic activity can be evaluated using the high-throughput evaluation device for heterogeneous thermocatalytic systems. Higher catalyst activity indicates a larger reaction rate per unit time, a stronger thermal effect, and a more pronounced temperature signal. Fourth, the entire process is simple and easy to use; it can achieve automated and digital control, with temperature and other data automatically recorded by a computer. Operation is mainly performed via computer, and a sufficient amount of data can be collected.
[0008] In some embodiments, the catalysts at each catalyst site in the two-dimensional catalyst array are different from each other, and the two-dimensional catalyst array contains no fewer than 80 types of catalysts.
[0009] In some embodiments, the reactor is a customized batch reactor, comprising an upper part and a lower part; the upper part and the lower part are detachably sealed and fixed.
[0010] In some embodiments, the inner bottom of the reactor is provided with a first limiting groove adapted to place the planar substrate, so as to fix the planar substrate.
[0011] In some embodiments, the heating platform is provided with a second limiting groove adapted to place the reactor, so as to fix the reactor.
[0012] In some embodiments, the temperature control system includes a thermocouple; the thermocouple is located in the third limiting groove of the heating stage and is adapted to be inserted into the temperature measuring groove at the bottom of the reactor to measure and record the temperature below the two-dimensional catalyst array in real time.
[0013] In some embodiments, it is suitable for coupling with a batch reaction system; the batch reaction system is connected to the inlet pipe and the outlet pipe respectively; the batch reaction system realizes the internal vacuuming of the reactor and the pre-storage of a certain amount of high-pressure reaction gas before the reaction, and inputs a certain amount of high-pressure reaction gas into the reactor when the reaction is required.
[0014] In some embodiments, the intermittent reaction system includes a first trachea, a second trachea, a first relay, a second relay, a third relay, a fourth relay, a first pressure gauge, a second pressure gauge, and a vacuum pump; The inlet end of the first trachea is used to introduce reaction gas, and the outlet end of the first trachea is connected to the inlet pipe; the first relay and the second relay are sequentially arranged on the first trachea from the inlet end to the outlet end of the first trachea. The inlet end of the second trachea is connected to the outlet end of the trachea, and the outlet end of the second trachea is connected to the outside. The third and fourth relays are sequentially arranged on the second air tube from the inlet to the outlet. The fourth relay is also connected to a vacuum pump. The first relay is also connected to the second air tube and is located downstream of the fourth relay. The first pressure gauge and the second pressure gauge are installed on the first trachea and located upstream and downstream of the second relay, respectively.
[0015] A second aspect of this invention provides a high-throughput evaluation method suitable for heterogeneous thermocatalytic systems. This method uses the high-throughput evaluation device suitable for heterogeneous thermocatalytic systems from the first aspect of this invention for continuous evaluation, and includes the following steps: Couple the high-throughput evaluation device suitable for heterogeneous thermocatalytic systems with a batch reaction system; The planar substrate on which the two-dimensional catalyst array is prepared is placed inside the reactor, and the airtightness is checked; The reactor is heated by the temperature control system and the heating platform. After the internal temperature of the reactor stabilizes at the set temperature, the pipeline is purged with inert gas. The infrared thermal imager is turned on to record the initial temperature of each catalyst site in the two-dimensional catalyst array when there is no reaction. Then, the reaction gas is continuously introduced at a set flow rate, and the temperature of each catalyst site in the two-dimensional catalyst array is recorded in real time by the infrared thermal imager, thereby obtaining the temperature difference of each catalyst site in the two-dimensional catalyst array.
[0016] Since the high-throughput evaluation method for heterogeneous thermocatalytic systems in the second aspect of the present invention utilizes the high-throughput evaluation device for heterogeneous thermocatalytic systems in the first aspect of the present invention, the combustion method for combustion purification treatment of sintering flue gas in the second aspect of the present invention has essentially the same technical effects as the high-throughput evaluation device for heterogeneous thermocatalytic systems in the first aspect of the present invention, and will not be described again here.
[0017] A third aspect of this invention proposes another high-throughput evaluation method suitable for heterogeneous thermocatalytic systems. This method uses the high-throughput evaluation device suitable for heterogeneous thermocatalytic systems according to the first aspect of this invention for intermittent evaluation, and includes the following steps: The planar substrate on which the two-dimensional catalyst array is prepared is placed inside the reactor, and the airtightness is checked; The reactor is heated by the temperature control system and the heating platform. After the internal temperature of the reactor stabilizes at the set temperature, inert gas is introduced through the intermittent reaction system to purge the pipeline. The reactor is evacuated using the intermittent reaction system; The batch reaction system was purged using a reactor; A fixed amount of high-pressure reaction gas is pre-stored in the intermittent reaction system; The infrared thermal imager is turned on to record the initial temperature of each catalyst site in the two-dimensional catalyst array when there is no reaction. Then, a fixed amount of high-pressure reaction gas pre-stored in the intermittent reaction system is continuously introduced at a set flow rate. The temperature of each catalyst site in the two-dimensional catalyst array is recorded in real time by the infrared thermal imager, thereby obtaining the temperature difference of each catalyst site in the two-dimensional catalyst array.
[0018] Since the high-throughput evaluation method for heterogeneous thermocatalytic systems in the third aspect embodiment of the present invention utilizes the high-throughput evaluation device for heterogeneous thermocatalytic systems in the first aspect embodiment of the present invention, the combustion method for combustion purification treatment of sintering flue gas in the third aspect embodiment of the present invention has essentially the same technical effect as the high-throughput evaluation device for heterogeneous thermocatalytic systems in the first aspect embodiment of the present invention, and will not be described again here.
[0019] Additional aspects and advantages of the invention 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 the invention. Attached Figure Description
[0020] Figure 1 This is a structural perspective diagram of the continuous high-throughput evaluation device for heterogeneous thermocatalytic systems of the present invention. Figure 2 This is a schematic diagram of the intermittent reaction system of the high-throughput evaluation device for heterogeneous thermocatalytic systems according to the present invention.
[0021] A high-throughput evaluation device 1000 suitable for heterogeneous thermocatalytic systems includes: a reactor 1; an infrared window 103; an inlet pipe 201; an outlet pipe 202; a heating platform 3; an infrared thermal imager 4; a catalyst array 5; a planar substrate 6; a batch reaction system 100; a first gas pipe 1001; a second gas pipe 1002; a first relay 2001; a second relay 2002; a third relay 2003; a fourth relay 2004; a first pressure gauge 3001; a second pressure gauge 3002; and a vacuum pump 4001. Detailed Implementation
[0022] Embodiments of the present invention 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 the present invention, and should not be construed as limiting the present invention.
[0023] The following is combined Figures 1 to 2 This invention describes a high-throughput evaluation device 1000 suitable for heterogeneous thermocatalytic systems.
[0024] like Figure 1 and Figure 2 As shown, a high-throughput evaluation device 1000 for heterogeneous thermocatalytic systems according to an embodiment of the present invention includes a reactor 1, an inlet pipe 201, an outlet pipe 202, a heating platform 3, a temperature control system (not shown in the figure), and an infrared thermal imager 4.
[0025] The reactor 1 has a bottom inner section suitable for placing a two-dimensional catalyst array 5 prepared on a planar substrate 6. The two-dimensional catalyst array 5 is prepared in parallel on the same planar substrate 6. Compared with existing technologies, this method simplifies the preparation process, reduces time, and is suitable for large-scale preparation. Furthermore, approximately one hundred catalysts can be placed on the surface of the same planar substrate 6, facilitating the simultaneous screening and evaluation of hundreds of catalysts on the same substrate 6. An inlet pipe 201 and an outlet pipe 202 are connected to opposite sides of the reactor 1, allowing the reaction gas to continuously flow through the two-dimensional catalyst array on the same planar substrate 6, which is beneficial for high-speed and large-scale catalyst evaluation. An infrared window 103 is located at the top of the reactor 1, directly opposite the two-dimensional catalyst array 5.
[0026] The reactor 1 is placed on the heating platform 3, that is, the heating platform 3 is located outside the reactor 1 and is used to heat the reactor 1 as a whole.
[0027] The temperature control system is coupled to the heating platform 3 to control the bottom temperature of the reactor 1, while simultaneously measuring and recording the temperature below the two-dimensional catalyst array 5 in real time.
[0028] The infrared thermal imager 4 is positioned above the infrared window 103 to capture the temperature changes of each catalyst site in the two-dimensional catalyst array 5 in real time.
[0029] During operation, the temperature control system continuously monitors the temperature of the heating platform 3 in real time, ensuring that the entire reactor 1 reaches the set temperature. Simultaneously, the system continuously monitors the temperature below the catalyst array 5 to ensure temperature stability within the reactor 1. The reaction gas enters the reactor 1 through the inlet pipe 201 and undergoes a thermocatalytic reaction with the catalyst at each catalyst site as it flows through the two-dimensional catalyst array 5. The gas is then discharged through the outlet pipe 202. The infrared thermal imager 4 captures the temperature changes of each catalyst site in real time through the infrared window 103 (e.g., highly active catalyst sites exhibit more significant temperature changes due to faster exothermic reactions). By analyzing the temperature changes at each catalyst site, the performance indicators of the catalyst at each site can be obtained. Furthermore, based on the temperature distribution map captured by the infrared thermal imager 4, catalysts for catalytic oxidation reactions with significant thermal effects can be systematically and rapidly screened on a large scale.
[0030] The inlet pipe 201 and outlet pipe 202 of the high-throughput evaluation device 1000 for heterogeneous thermocatalytic systems in this embodiment of the invention are connected to the batch reaction system 100, making it suitable for continuous evaluation methods, as detailed below: The planar substrate 6 on which the two-dimensional catalyst array 5 is prepared is placed in the reactor 1, and the airtightness is checked.
[0031] The reactor 1 is heated by the temperature control system and the heating platform 3. After the internal temperature of the reactor 1 stabilizes at the set temperature, the pipeline is purged with inert gas.
[0032] Infrared thermal imager 4 is turned on to record the initial temperature of each catalyst site in the two-dimensional catalyst array 5 when there is no reaction. Then, reaction gas is continuously introduced at a set flow rate, and the temperature of each catalyst site in the two-dimensional catalyst array 5 is recorded in real time by infrared thermal imager 4, thereby obtaining the temperature difference of each catalyst site in the two-dimensional catalyst array 5. The higher the temperature rise, the better the performance, and the performance of the catalyst at each catalyst site can be compared horizontally.
[0033] The high-throughput evaluation device 1000 for heterogeneous thermocatalytic systems according to embodiments of the present invention is also applicable to batch evaluation methods, as detailed below: A high-throughput evaluation device 1000 suitable for heterogeneous thermocatalytic systems is coupled to a batch reaction system 100.
[0034] The planar substrate 6 on which the two-dimensional catalyst array 5 is prepared is placed in the reactor 1, and the airtightness is checked.
[0035] The reactor 1 is heated by the temperature control system and the heating platform 3. After the internal temperature of the reactor 1 stabilizes at the set temperature, inert gas is introduced through the intermittent reaction system 100 to purge the pipeline.
[0036] The reactor 1 is evacuated by the batch reaction system 100.
[0037] The batch reaction system 100 was purged using reactor 1.
[0038] A predetermined amount of high-pressure reaction gas is pre-stored in the batch reaction system 100.
[0039] Infrared thermal imager 4 is activated to record the initial temperature of each catalyst site in the two-dimensional catalyst array 5 when there is no reaction. Then, a pre-stored quantitative high-pressure reaction gas from the batch reaction system 100 is continuously introduced at a set flow rate. The infrared thermal imager 4 records the temperature of each catalyst site in the two-dimensional catalyst array 5 in real time, thereby obtaining the temperature difference of each catalyst site in the two-dimensional catalyst array 5. A higher temperature indicates better performance, allowing for a horizontal comparison of the catalyst performance at each catalyst site.
[0040] The high-throughput evaluation device 1000 for heterogeneous thermocatalytic systems of this invention has the following advantages: First, it can systematically and rapidly screen catalysts for catalytic oxidation reactions with significant thermal effects, which is more efficient than traditional catalyst screening methods. Multiple catalysts, such as hundreds of catalysts, are prepared in parallel on the same planar substrate 6 to form a two-dimensional catalyst array. The catalysts at each catalyst site simultaneously contact the continuously flowing reaction gas to undergo thermocatalytic reactions, allowing for simultaneous testing of the performance of multiple catalysts in a single experiment. Second, it is compatible with both continuous and intermittent evaluation, making it suitable for a wide range of applications. Third, it offers a rich selection of reactions and broad applicability. The internal temperature of the reactor 1 can be controlled at different set temperatures through a temperature control system. As long as the temperature change of the catalytic reaction can be captured by the infrared thermal imager 4, its catalytic activity can be evaluated using the high-throughput evaluation device 1000 for heterogeneous thermocatalytic systems. Higher catalyst activity indicates a larger reaction rate per unit time, a stronger thermal effect, and a more pronounced temperature signal. Fourth, the entire process is simple and easy to use; it can achieve automated and digital control, with temperature and other data automatically recorded by a computer. Operation is mainly performed via computer, and a sufficient amount of data can be collected.
[0041] In some embodiments, the catalysts at each catalyst site in the two-dimensional catalyst array 5 are different from each other, and the two-dimensional catalyst array 5 contains no fewer than 80 types of catalysts, for example, 80, 100, 150, or 200 types of catalysts. This facilitates the efficient evaluation of large quantities of catalysts.
[0042] In some embodiments, reactor 1 is a customized batch reactor. Batch reactors offer high safety and ensure stable internal temperature, which is beneficial for improving the efficiency of the thermocatalytic reaction. Reactor 1 includes an upper part and a lower part, which are detachably sealed and fixed. This facilitates the placement and removal of the two-dimensional catalyst array 5 and the planar substrate 6 while ensuring the airtightness of reactor 1.
[0043] In some embodiments, the inner bottom of the reactor 1 is provided with a first limiting groove (not shown in the figure) adapted to place the planar substrate 6 to fix the planar substrate 6. The first limiting groove can fix the planar substrate 6 in the correct position and prevent the planar substrate 6 from shifting, so that the two-dimensional catalyst array 5 is not or partially out of the field of view of the infrared thermal imager 4. On the other hand, it can accurately and quickly place the planar substrate 6 in the correct position.
[0044] In some embodiments, the heating platform 3 is provided with a second limiting groove (not shown in the figure) adapted to place the reactor 1 to fix the reactor 1. The second limiting groove ensures that the center of the reactor 1 is aligned with the heating area of the heating platform 3 to prevent displacement.
[0045] In some embodiments, the temperature control system includes a thermocouple (not shown in the figure); the thermocouple is located in the third limiting groove (not shown in the figure) of the heating platform 3 and is adapted to be inserted into the temperature measuring groove 7 at the outer bottom of the reactor 1 to measure and record the temperature below the two-dimensional catalyst array 5 in real time. The thermocouple inserted into the temperature measuring groove 7 at the outer bottom of the reactor 1 can directly measure the actual temperature below the catalyst array. The third limiting groove also prevents the thermocouple from shifting.
[0046] In some embodiments, such as Figures 1 to 2 As shown, a high-throughput evaluation device 1000 suitable for heterogeneous thermocatalytic systems is adapted to be coupled with a batch reaction system 100. The batch reaction system 100 is connected to an inlet pipe 201 and an outlet pipe 202. The batch reaction system 100 performs internal vacuuming of the reactor 1 and pre-stores a fixed amount of high-pressure reaction gas before the reaction, and inputs a fixed amount of high-pressure reaction gas into the reactor 1 when a reaction is required. Pre-vacuuming removes impurities from the reactor 1, avoiding catalyst contamination or interference with the reaction, and improving the accuracy of the evaluation. Pre-stores a fixed amount of high-pressure reaction gas before the reaction to perform batch evaluation of the two-dimensional catalyst array in the reactor 1.
[0047] In some embodiments, the intermittent reaction system 100 includes a first trachea 1001, a second trachea 1002, a first relay 2001, a second relay 2002, a third relay 2003, a fourth relay 2004, a first pressure gauge 3001, a second pressure gauge 3002, and a vacuum pump 4001.
[0048] The inlet end of the first trachea 1001 is used to introduce reaction gas, and the outlet end of the first trachea 1001 is connected to the inlet pipe 201; the first relay 2001 and the second relay 2002 are sequentially arranged on the first trachea 1001 from the inlet end to the outlet end of the first trachea 1001.
[0049] The inlet end of the second trachea 1002 is connected to the outlet end of the trachea 202, and the outlet end of the second trachea 1002 is connected to the outside.
[0050] The third relay 2003 and the fourth relay 2004 are sequentially arranged on the second air pipe 1002 from the inlet end to the outlet end of the second air pipe 1002. The fourth relay 2004 is also connected to the vacuum pump 4001. The first relay 2001 is also connected to the second air pipe 1002 and is located downstream of the fourth relay 2004.
[0051] The first pressure gauge 3001 and the second pressure gauge 3002 are installed on the first trachea 1001 and are located upstream and downstream of the second relay 2002, respectively.
[0052] The high-throughput evaluation device 1000 for heterogeneous thermocatalytic systems in this example is capable of performing intermittent evaluations, as detailed below: The high-throughput evaluation device 1000, suitable for heterogeneous thermocatalytic systems, is coupled with the batch reaction system 100. The planar substrate 6 on which the two-dimensional catalyst array 5 is prepared is placed in the reactor 1, and the airtightness is checked.
[0053] Reactor 1 is heated by a temperature control system and heating platform 3. Once the internal temperature of reactor 1 stabilizes at the set temperature, inert gas is introduced through intermittent reaction system 100 to purge the pipeline. At this time, the first relay 2001, the second relay 2002, and the third relay 2003 are in the open state, the fourth relay 2004 is in the closed state, and the vacuum pump 4001 is turned off. Inert gas enters the pipeline through the first gas pipe 1001, enters reactor 1 through the inlet pipe 201, flows out of reactor 1 through the outlet pipe 202, and finally exits the pipeline through the second gas pipe 1002, thus purging the internal gas and eliminating the influence of impurities.
[0054] The intermittent reaction system 100 evacuates reactor 1. At this time, the second relay 2002, the third relay 2003, and the fourth relay 2004 in the channel are in the open state, the first relay 2001 is in the closed state, and the vacuum pump 4001 is turned on. At this time, the internal pipeline is closed to the outside, and the gas in the pipeline can be completely evacuated.
[0055] Reactor 1 is used to purge the batch reaction system 100. At this time, the first relay 2001, the second relay 2002, the third relay 2003, and the fourth relay 2004 are in the closed state, and the vacuum pump 4001 is turned off. The reaction gas enters the pipeline through the first gas pipe 1001 and exits the pipeline directly through the second gas pipe 1002, thereby purging the upstream pipeline and eliminating the influence of the gas in the upstream pipeline.
[0056] A predetermined amount of high-pressure reaction gas is pre-stored in the intermittent reaction system 100. At this time, the first relay 2001 is in the open state, while the second relay 2002, the third relay 2003, and the fourth relay 2004 are in the closed state, and the vacuum pump 4001 is turned off. The reaction gas enters the pipeline through the first gas pipe 1001 and is pre-stored in the gas path between the two valves corresponding to the first relay 2001 and the second relay 2002, thereby obtaining a predetermined amount of high-pressure reaction gas.
[0057] Infrared thermal imager 4 is turned on to record the initial temperature of each catalyst site in the two-dimensional catalyst array 5 when there is no reaction. Then, a predetermined amount of high-pressure reaction gas pre-stored in the batch reaction system 100 is continuously introduced at a set flow rate. At this time, the second relay 2002 is in the open state, while the first relay 2001, third relay 2003, and fourth relay 2004 are in the closed state, and the vacuum pump 4001 is turned off. The pre-stored reaction gas then rapidly enters the reactor 1 under negative pressure and reacts. The temperature of each catalyst site in the two-dimensional catalyst array 5 is recorded in real time by infrared thermal imager 4, thus obtaining the temperature difference of each catalyst site in the two-dimensional catalyst array 5.
[0058] In summary, the batch reaction system 100 is used to create a batch reaction environment and is directly connected to the reactor 1 via a gas pipeline. The batch reaction system 100 can achieve vacuum pressure extraction and pre-pressurization of the reactant gas inside the reactor 1, i.e., pre-store a certain pressure of gas. This allows the pre-stored high-pressure reactant gas to rapidly enter the reactor 1 under negative pressure, thereby initiating a batch reaction and enabling infrared thermal imaging evaluation. This method can further improve the significance of the results. Figure 2 As shown, when pipelines ① and ② are connected, the corresponding relay is in the open state and the computer control state is "1"; when pipelines ② and ③ are connected, the corresponding relay is in the closed state and the computer control state is "0"; the first pressure gauge 3001 is used to measure the pressure of the pre-stored reaction gas, and the second pressure gauge 3002 is used to measure the pressure of the gas inside reactor 1, which can confirm the airtightness of the device.
[0059] A second aspect of the present invention also proposes a high-throughput evaluation method suitable for heterogeneous thermocatalytic systems. This evaluation method utilizes the high-throughput evaluation device 1000 suitable for heterogeneous thermocatalytic systems according to the first aspect of the present invention for continuous evaluation, and includes the following steps: The planar substrate 6 on which the two-dimensional catalyst array 5 is prepared is placed in the reactor 1, and the airtightness is checked.
[0060] The reactor 1 is heated by the temperature control system and the heating platform 3. After the internal temperature of the reactor 1 stabilizes at the set temperature, the pipeline is purged with inert gas.
[0061] Infrared thermal imager 4 is turned on to record the initial temperature of each catalyst site in the two-dimensional catalyst array 5 when there is no reaction. Then, reaction gas is continuously introduced at a set flow rate, and the temperature of each catalyst site in the two-dimensional catalyst array 5 is recorded in real time by infrared thermal imager 4, thus obtaining the temperature difference of each catalyst site in the two-dimensional catalyst array 5. The difference between the real-time temperature and the initial temperature gives the temperature rise at the catalyst site. The higher the temperature rise, the better the performance, allowing for a horizontal comparison of catalyst performance.
[0062] Since the high-throughput evaluation method for heterogeneous thermocatalytic systems in the second aspect of the present invention utilizes the high-throughput evaluation device 1000 for heterogeneous thermocatalytic systems in the first aspect of the present invention, the high-throughput evaluation method for heterogeneous thermocatalytic systems in the second aspect of the present invention has essentially the same technical effects as the high-throughput evaluation device 1000 for heterogeneous thermocatalytic systems in the first aspect of the present invention, and will not be described again here.
[0063] A third aspect of the present invention also proposes another high-throughput evaluation method suitable for heterogeneous thermocatalytic systems. This evaluation method utilizes the high-throughput evaluation device 1000 suitable for heterogeneous thermocatalytic systems according to the first aspect of the present invention for intermittent evaluation, and includes the following steps: The high-throughput evaluation device 1000, suitable for heterogeneous thermocatalytic systems, is coupled with the batch reaction system 100. The planar substrate 6 on which the two-dimensional catalyst array 5 is prepared is placed in the reactor 1, and the airtightness is checked.
[0064] Reactor 1 is heated by a temperature control system and heating platform 3. Once the internal temperature of reactor 1 stabilizes at the set temperature, inert gas is introduced through intermittent reaction system 100 to purge the pipeline. Specifically, the inert gas is introduced through intermittent reaction system 100 and the pipeline is purged with inert gas as follows: first relay 2001, second relay 2002, and third relay 2003 are in the open state, fourth relay 2004 is in the closed state, and vacuum pump 4001 is turned off. Inert gas enters first gas pipe 1001 from the inlet end, enters inlet pipe 201 from the outlet end of first gas pipe 1001, then enters reactor 1, flows out of reactor 1 from outlet pipe 202, and finally exits the pipeline through second gas pipe 1002, thus purging the internal gas and eliminating the influence of impurities.
[0065] The reactor 1 is evacuated by the intermittent reaction system 100. At this time, the second relay 2002, the third relay 2003, and the fourth relay 2004 are in the open state, the first relay 2001 is in the closed state, and the vacuum pump 4001 is turned on. At this time, the internal pipeline is closed to the outside, and the gas in the pipeline can be completely evacuated.
[0066] Reactor 1 is used to purge the batch reaction system 100. At this time, the first relay 2001, the second relay 2002, the third relay 2003, and the fourth relay 2004 are in the closed state, and the vacuum pump 4001 is turned off. The reaction gas enters the pipeline through the first gas pipe 1001 and exits the pipeline directly through the second gas pipe 1002, thereby purging the upstream pipeline and eliminating the influence of the gas in the upstream pipeline.
[0067] A predetermined amount of high-pressure reaction gas is pre-stored in the intermittent reaction system 100. At this time, the first relay 2001 is in the open state, while the second relay 2002, the third relay 2003, and the fourth relay 2004 are in the closed state, and the vacuum pump 4001 is turned off. The reaction gas enters the pipeline through the first gas pipe 1001 and is pre-stored in the gas path between the two valves corresponding to the first relay 2001 and the second relay 2002, thereby obtaining a predetermined amount of high-pressure reaction gas.
[0068] Infrared thermal imager 4 is turned on to record the initial temperature of each catalyst site in the two-dimensional catalyst array 5 when there is no reaction. Then, a predetermined amount of high-pressure reaction gas pre-stored in the batch reaction system 100 is continuously introduced at a set flow rate. At this time, the second relay 2002 is in the open state, while the first relay 2001, third relay 2003, and fourth relay 2004 are in the closed state, and the vacuum pump 4001 is turned off. The pre-stored reaction gas then rapidly enters the reactor 1 under negative pressure and reacts. The temperature of each catalyst site in the two-dimensional catalyst array 5 is recorded in real time by infrared thermal imager 4, thus obtaining the temperature difference of each catalyst site in the two-dimensional catalyst array 5.
[0069] It should be noted that the actual evaluation process consists of the steps described above. Multiple "inert gas purging" and "vacuuming" steps are required to ensure the gas path within the device is completely purged and to eliminate the influence of other gaseous impurities. Then, a "reaction gas purging" step is performed to eliminate the influence of the gas in the preceding pipeline. Following this, the "reaction gas pre-storage" stage and the "reaction" stage are conducted. Once the reaction occurs, infrared imaging testing can be performed. Finally, a "vacuuming" stage is performed to remove the reaction tail gas and prevent interference.
[0070] Since the high-throughput evaluation method for heterogeneous thermocatalytic systems in the third aspect embodiment of the present invention utilizes the high-throughput evaluation device 1000 for heterogeneous thermocatalytic systems in the first aspect embodiment of the present invention, the high-throughput evaluation method for heterogeneous thermocatalytic systems in the third aspect embodiment of the present invention has essentially the same technical effects as the high-throughput evaluation device 1000 for heterogeneous thermocatalytic systems in the first aspect embodiment of the present invention, and will not be described again here.
[0071] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. 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.
[0072] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.
[0073] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0074] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0075] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" of the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0076] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A high-throughput evaluation device suitable for heterogeneous thermocatalytic systems, characterized in that, include: The reactor has an inner bottom adapted to hold a two-dimensional catalyst array prepared on the same planar substrate, and an inlet pipe and an outlet pipe are respectively connected to opposite sides of the reactor. The top of the reactor is provided with an infrared window facing the two-dimensional catalyst array. A heating platform on which the reactor is placed for heating the entire reactor; A temperature control system, coupled to the heating platform, is used to control the bottom temperature of the reactor and simultaneously measure and record the temperature below the two-dimensional catalyst array in real time. An infrared thermal imager is positioned above the infrared display window to capture the temperature changes at each catalyst site in the two-dimensional catalyst array in real time.
2. The high-throughput evaluation device for heterogeneous thermocatalytic systems according to claim 1, characterized in that, The catalysts at each catalyst site in the two-dimensional catalyst array are different from each other, and the two-dimensional catalyst array contains no fewer than 80 types of catalysts.
3. The high-throughput evaluation device for heterogeneous thermocatalytic systems according to claim 1, characterized in that, The reactor is a customized batch reactor, which includes an upper part and a lower part; the upper part and the lower part are detachably sealed and fixed.
4. The high-throughput evaluation device for heterogeneous thermocatalytic systems according to claim 1, characterized in that, The reactor has a first limiting groove at its inner bottom to accommodate the planar substrate and fix the planar substrate in place.
5. The high-throughput evaluation device for heterogeneous thermocatalytic systems according to claim 1, characterized in that, The heating platform is provided with a second limiting groove adapted to place the reactor, so as to fix the reactor.
6. The high-throughput evaluation device for heterogeneous thermocatalytic systems according to claim 1, characterized in that, The temperature control system includes a thermocouple; the thermocouple is located in the third limiting groove of the heating platform and is adapted to be inserted into the temperature measuring groove at the bottom of the reactor to measure and record the temperature below the two-dimensional catalyst array in real time.
7. The high-throughput evaluation device for heterogeneous thermocatalytic systems according to claim 1, characterized in that, Suitable for coupling with a batch reaction system; the batch reaction system is connected to the inlet pipe and the outlet pipe respectively; the batch reaction system realizes the internal vacuuming of the reactor and the pre-stored quantitative high-pressure reaction gas before the reaction, and inputs a quantitative high-pressure reaction gas into the reactor when the reaction is required.
8. The high-throughput evaluation device for heterogeneous thermocatalytic systems according to claim 7, characterized in that, The intermittent reaction system includes a first trachea, a second trachea, a first relay, a second relay, a third relay, a fourth relay, a first pressure gauge, a second pressure gauge, and a vacuum pump; The inlet end of the first trachea is used to introduce reaction gas, and the outlet end of the first trachea is connected to the inlet pipe; the first relay and the second relay are sequentially arranged on the first trachea from the inlet end to the outlet end of the first trachea. The inlet end of the second trachea is connected to the outlet end of the trachea, and the outlet end of the second trachea is connected to the outside. The third and fourth relays are sequentially arranged on the second air tube from the inlet to the outlet. The fourth relay is also connected to a vacuum pump. The first relay is also connected to the second air tube and is located downstream of the fourth relay. The first pressure gauge and the second pressure gauge are installed on the first trachea and located upstream and downstream of the second relay, respectively.
9. A high-throughput evaluation method applicable to heterogeneous thermocatalytic systems, characterized in that, Continuous evaluation using the high-throughput evaluation device for heterogeneous thermocatalytic systems as described in any one of claims 1 to 8 includes the following steps: Couple the high-throughput evaluation device suitable for heterogeneous thermocatalytic systems with a batch reaction system; The planar substrate on which the two-dimensional catalyst array is prepared is placed inside the reactor, and the airtightness is checked; The reactor is heated by the temperature control system and the heating platform. After the internal temperature of the reactor stabilizes at the set temperature, the pipeline is purged with inert gas. The infrared thermal imager is turned on to record the initial temperature of each catalyst site in the two-dimensional catalyst array when there is no reaction. Then, the reaction gas is continuously introduced at a set flow rate, and the temperature of each catalyst site in the two-dimensional catalyst array is recorded in real time by the infrared thermal imager, thereby obtaining the temperature difference of each catalyst site in the two-dimensional catalyst array.
10. A high-throughput evaluation method applicable to heterogeneous thermocatalytic systems, characterized in that, Intermittent evaluation using the high-throughput evaluation device for heterogeneous thermocatalytic systems as described in any one of claims 1 to 8 includes the following steps: The planar substrate on which the two-dimensional catalyst array is prepared is placed inside the reactor, and the airtightness is checked; The reactor is heated by the temperature control system and the heating platform. After the internal temperature of the reactor stabilizes at the set temperature, inert gas is introduced through the intermittent reaction system to purge the pipeline. The reactor is evacuated using the intermittent reaction system; The batch reaction system was purged using a reactor; A fixed amount of high-pressure reaction gas is pre-stored in the intermittent reaction system; The infrared thermal imager is turned on to record the initial temperature of each catalyst site in the two-dimensional catalyst array when there is no reaction. Then, a fixed amount of high-pressure reaction gas pre-stored in the intermittent reaction system is continuously introduced at a set flow rate. The temperature of each catalyst site in the two-dimensional catalyst array is recorded in real time by the infrared thermal imager, thereby obtaining the temperature difference of each catalyst site in the two-dimensional catalyst array.