Method, system, device and medium for determining the cyclic regeneration stability of catalyst

Abstract

The present invention specifically relates to a method, system, device, and medium for determining the cyclic regeneration stability of a catalyst. The cyclic regeneration stability determination method includes controlling the addition of a catalyst to a reactor, controlling the start-up of a gasifier and a cooler, obtaining a loading amount, determining a reaction gas inlet amount, a reaction liquid feed amount, a purge gas inlet amount, a regeneration gas inlet amount, and a regeneration liquid feed amount, controlling the start-up of all pipeline feeds, controlling the start-up of a purge gas flowmeter, controlling the start-up of a gas analyzer, and sampling and stopping sampling, controlling the start-up of all feed pumps and heating mechanisms, obtaining a real-time temperature, and if the real-time temperature is equal to a preset temperature threshold, controlling the reaction three-way valve, the regeneration three-way valve, and the feed three-way valve to start valve cutting, obtaining a first time point, and cutting the valve according to a preset valve cutting time and valve cutting sequence, obtaining a second time point if a stop sampling signal is received, and determining the cyclic regeneration stability of the catalyst based on the first time point, the second time point, and the number of valve cutting cycles.

Description

Technical Field

[0001] The present invention belongs to the technical field of catalysts, and in particular relates to a method, system, equipment and medium for determining the cyclic regeneration stability of a catalyst. Background Art

[0002] Chemical chain reaction is a common reaction mode in the field of catalytic technology. Its reaction mode can be simply understood as follows: after the catalyst converts substance A into the target product, it becomes inactivated, and then the catalyst is regenerated by substance B. After the catalyst regains its activity, it enters the next cycle. Therefore, the chemical chain reaction mode is particularly widely used for catalysts with deactivation phenomena, such as blast furnace gas desulfurization reaction, heavy oil catalytic cracking, chemical chain methane oxidative coupling reaction, chemical chain methane dry gas (steam) reforming reaction, etc. At present, the application scenarios of this reaction mode are mainly the evaluation of catalyst reactions that are not permanently deactivated and the evaluation of catalysts for redox reactions.

[0003] The stability of a catalyst's reaction-regeneration cycle is a key performance indicator. Industrial applications often require catalyst replacement cycles, impacting the operating costs of the device. The catalyst regeneration stability evaluation process involves three phases: reaction, inert gas purge, and regeneration. This requires frequent switching between different gases, which can be cumbersome and prone to errors, leading to unreliable experimental results. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a method, system, equipment and medium for determining the cyclic regeneration stability of a catalyst, so as to solve the above-mentioned technical problems such as the need to frequently switch between different gases, the tedious manual switching involved in the operation process and the high probability of operational errors, resulting in poor reliability of experimental results.

[0005] In the first aspect, the present invention provides a method for determining the cyclic regeneration stability of a catalyst, wherein the catalyst is a catalyst based on a chemical chain reaction, and the cyclic regeneration stability determination method is performed in an online system, wherein the online system comprises a feed pipe, a reactor, a cooler and a gas-liquid separator connected in sequence, wherein the feed pipe comprises a reaction gas inlet pipe, a reaction liquid inlet pipe, a purge gas inlet pipe, a regeneration gas inlet pipe and a regeneration liquid inlet pipe, wherein the reaction liquid inlet pipe and the regeneration liquid inlet pipe are both provided with a gasifier and a feed pump, wherein the reaction gas inlet pipe, the purge gas inlet pipe, the reaction liquid inlet pipe and the connecting pipe between the reactor are provided with a gasifier and a feed pump. A reaction three-way valve is provided, a regeneration three-way valve is provided on the connecting pipe between the regeneration gas inlet pipe and the regeneration liquid inlet pipe and the reactor, a feed three-way valve is provided on the connecting pipe between the reaction three-way valve and the regeneration three-way valve and the reactor, the gas-liquid separator is provided with a gas outlet and a waste liquid outlet, the reactor is provided with a heating mechanism, the gas outlet is connected to a gas analyzer, the reaction gas inlet pipe, the purge gas inlet pipe, and the regeneration gas inlet pipe are respectively provided with a reaction gas flowmeter, a purge gas flowmeter, and a regeneration gas flowmeter, the gas analyzer, the reactor, the reaction three-way valve, the regeneration three-way valve, and the feed three-way valve are all electrically connected to a controller;

[0006] The cyclic regeneration stability determination method includes:

[0007] controlling the addition of catalyst into the reactor, and controlling the startup of the gasifier and the cooler;

[0008] Obtaining the loading amount of the catalyst;

[0009] Control the reaction three-way valve and the regeneration three-way valve so that the reaction three-way valve and the regeneration three-way valve are switched to be connected to the purge gas inlet pipe, and the feed three-way valve is switched to be connected to the reaction gas inlet pipe and the reaction liquid inlet pipe;

[0010] According to the loading amount, the reaction gas feed amount, the reaction liquid feed amount, the purge gas feed amount, the regeneration gas feed amount and the regeneration liquid feed amount are determined;

[0011] Control and start all pipeline feeds so that the purge gas enters the reactor after passing through the reaction three-way valve and the feed three-way valve in sequence for pre-reaction purge;

[0012] Control and start the purge gas flow meter to purge the reaction gas pipeline before the reaction;

[0013] Control the feed three-way valve and the regeneration three-way valve to allow the purge gas to purge the regeneration pipeline;

[0014] The outlet of the control reaction three-way valve is connected to the inlet of the feed three-way valve, and the inlet of the regeneration three-way valve is connected to the regeneration gas flow meter;

[0015] Control the start-up of the gas analyzer, and start and stop sampling according to the preset sampling interval, sampling duration and sampling stop duration;

[0016] Control and start all feed pumps and heating mechanisms;

[0017] Obtaining the real-time temperature of the catalyst bed in the reactor;

[0018] If the real-time temperature is equal to the preset temperature threshold, the reaction three-way valve, the regeneration three-way valve, and the feed three-way valve are controlled to start valve cutting, and a first time point when the valve cutting starts is obtained;

[0019] Control the reaction three-way valve, regeneration three-way valve and feed three-way valve to cut valves according to the preset cutting time and cutting sequence;

[0020] If a stop sampling signal is received, the reaction three-way valve, the regeneration three-way valve and the feed three-way valve are controlled to be closed, and the second time point and the number of valve cutting cycles when the reaction three-way valve, the regeneration three-way valve and the feed three-way valve are closed are obtained;

[0021] The cyclic regeneration stability of the catalyst is determined according to the first time point, the second time point and the number of valve cutting cycles.

[0022] In an exemplary embodiment of the present application, all valves that need to perform valve cutting actions within the same time period complete valve cutting at the start of the time period at the same time. In an exemplary embodiment of the present application, determining the cyclic regeneration stability of the catalyst includes:

[0023] Determining a catalyst regeneration time according to the first time point and the second time point;

[0024] The cyclic regeneration stability of the catalyst is determined based on the cyclic regeneration time and the number of valve cutting cycles.

[0025] In an exemplary embodiment of the present application, determining the amount of reactant gas fed includes:

[0026] The reaction gas intake volume is determined according to the catalyst loading volume and the preset first target space velocity.

[0027] In an exemplary embodiment of the present application, determining the reaction liquid feed amount includes:

[0028] The reaction liquid feed rate is determined according to the catalyst loading amount and the preset second target space velocity.

[0029] In an exemplary embodiment of the present application, determining the purge gas intake amount includes:

[0030] The purge gas intake volume is determined according to the catalyst loading volume and a preset third target space velocity.

[0031] In an exemplary embodiment of the present application, determining the regeneration gas intake amount includes:

[0032] The regeneration gas intake volume is determined according to the catalyst loading volume and the preset fourth target space velocity.

[0033] In an exemplary embodiment of the present application, determining the regeneration liquid feed rate includes:

[0034] The regeneration liquid feed rate is determined according to the catalyst loading amount and the preset fifth target space velocity.

[0035] In an exemplary embodiment of the present application, the duration of purging the regeneration pipeline is 10-60 minutes;

[0036] In an exemplary embodiment of the present application, the duration of purging the reaction gas pipeline is 10-60 minutes.

[0037] In the second aspect, the present application also provides a catalyst cyclic regeneration stability determination system, wherein the catalyst is a catalyst based on a chemical chain reaction, and the cyclic regeneration stability determination system is carried out in an online system, wherein the online system comprises a feed pipe, a reactor, a cooler and a gas-liquid separator connected in sequence, wherein the feed pipe comprises a reaction gas inlet pipe, a reaction liquid inlet pipe, a purge gas inlet pipe, a regeneration gas inlet pipe and a regeneration liquid inlet pipe, wherein the reaction liquid inlet pipe and the regeneration liquid inlet pipe are both provided with a gasifier and a feed pump, wherein the reaction gas inlet pipe, the purge gas inlet pipe, the reaction liquid inlet pipe and the connecting pipe between the reactor are provided with a gasifier and a feed pump. A reaction three-way valve is provided, a regeneration three-way valve is provided on the connecting pipe between the regeneration gas inlet pipe and the regeneration liquid inlet pipe and the reactor, a feed three-way valve is provided on the connecting pipe between the reaction three-way valve and the regeneration three-way valve and the reactor, the gas-liquid separator is provided with a gas outlet and a waste liquid outlet, the reactor is provided with a heating mechanism, the gas outlet is connected to a gas analyzer, the reaction gas inlet pipe, the purge gas inlet pipe, and the regeneration gas inlet pipe are respectively provided with a reaction gas flowmeter, a purge gas flowmeter, and a regeneration gas flowmeter, the gas analyzer, the reactor, the reaction three-way valve, the regeneration three-way valve, and the feed three-way valve are all electrically connected to a controller;

[0038] The cyclic regeneration stability determination system includes:

[0039] a first control module, configured to control the addition of a catalyst into the reactor, and control the startup of a gasifier and a cooler;

[0040] A first acquisition module is used to obtain the loading amount of the catalyst;

[0041] The second control module is used to control the reaction three-way valve and the regeneration three-way valve to switch the reaction three-way valve and the regeneration three-way valve to be connected to the purge gas inlet pipe, and switch the feed three-way valve to be connected to the reaction gas inlet pipe and the reaction liquid inlet pipe;

[0042] A first determining module is used to determine the reaction gas feed amount, the reaction liquid feed amount, the purge gas feed amount, the regeneration gas feed amount and the regeneration liquid feed amount according to the loading amount;

[0043] The third control module is used to control the start of all pipeline feeds so that the purge gas enters the reactor after passing through the reaction three-way valve and the feed three-way valve in sequence to perform pre-reaction purge;

[0044] The fourth control module is used to control the start of the purge gas flow meter to purge the reaction gas pipeline before the reaction;

[0045] A fifth control module is used to control the feed three-way valve and the regeneration three-way valve so that the purge gas can purge the regeneration pipeline;

[0046] a sixth control module, configured to control the outlet of the reaction three-way valve to be in communication with the inlet of the feed three-way valve, and the inlet of the regeneration three-way valve to be in communication with the regeneration gas flow meter;

[0047] The seventh control module is used to control the start of the gas analyzer and to perform sampling and stop sampling according to the preset sampling interval, sampling duration and sampling stop duration;

[0048] An eighth control module is used to control and start all feed pumps and heating mechanisms;

[0049] The second acquisition module is used to obtain the real-time temperature of the catalyst bed in the reactor;

[0050] a ninth control module, for controlling the reaction three-way valve, the regeneration three-way valve, and the feed three-way valve to start valve cutting if the real-time temperature is equal to a preset temperature threshold, and obtaining a first time point when the valve cutting starts;

[0051] A tenth control module is used to control the reaction three-way valve, the regeneration three-way valve and the feed three-way valve to cut the valves according to the preset cutting time and cutting sequence;

[0052] The eleventh control module is used to control the closing of the reaction three-way valve, the regeneration three-way valve and the feed three-way valve if a stop sampling signal is received, and obtain the second time point and the number of valve cutting cycles when the reaction three-way valve, the regeneration three-way valve and the feed three-way valve are closed;

[0053] The second determining module is configured to determine the cyclic regeneration stability of the catalyst according to the first time point, the second time point, and the number of valve cutting cycles.

[0054] In a third aspect, the present application further provides an electronic device, comprising:

[0055] one or more processors;

[0056] A storage device is used to store one or more programs, which, when executed by the one or more processors, enables the electronic device to implement the method for determining the cyclic regeneration stability of the catalyst as described above.

[0057] In a fourth aspect, the present application also provides a computer-readable storage medium, characterized in that a computer program is stored thereon, and when the computer program is executed by a processor of a computer, the computer executes the method for determining the cyclic regeneration stability of the catalyst as described above.

[0058] As described above, the method, system, device and medium for determining the cyclic regeneration stability of the catalyst of the present invention have the following beneficial effects:

[0059] The present invention controls the addition of catalyst into the reactor, controls the start-up of the gasifier and the cooler, obtains the filling amount of the catalyst, controls the reaction three-way valve and the regeneration three-way valve so that the reaction three-way valve and the regeneration three-way valve are switched to be connected with the purge gas inlet pipe, switches the feed three-way valve to be connected with the reaction gas inlet pipe and the reaction liquid inlet pipe, determines the reaction gas inlet amount, the reaction liquid feed amount, the purge gas inlet amount, the regeneration gas inlet amount and the regeneration liquid feed amount according to the filling amount, controls the start-up of all pipeline feeds so that the purge gas enters the reactor after passing through the reaction three-way valve and the feed three-way valve in sequence, performs pre-reaction purge, controls the start-up of the purge gas flowmeter to purge the reaction gas pipeline before the reaction, controls the feed three-way valve and the regeneration three-way valve so that the purge gas purges the regeneration pipeline, controls the outlet of the reaction three-way valve to be connected with the inlet of the feed three-way valve, and the inlet of the regeneration three-way valve to be connected with the regeneration gas flowmeter, controls the start-up of the gas analyzer, and performs sampling according to the preset Sampling and stopping sampling are carried out according to the interval duration, sampling duration and sampling stop duration, all feed pumps and heating mechanisms are controlled to start, and the real-time temperature of the catalyst bed in the reactor is obtained. If the real-time temperature is equal to the preset temperature threshold, the reaction three-way valve, the regeneration three-way valve and the feed three-way valve are controlled to start valve cutting, and the first time point when the valve cutting starts is obtained. The reaction three-way valve, the regeneration three-way valve and the feed three-way valve are controlled to cut the valve according to the preset valve cutting duration and valve cutting sequence. If a stop sampling signal is received, the reaction three-way valve, the regeneration three-way valve and the feed three-way valve are controlled to be closed, and the second time point and the valve cutting cycle number when the reaction three-way valve, the regeneration three-way valve and the feed three-way valve are closed are obtained. According to the first time point, the second time point and the valve cutting cycle number, the cyclic regeneration stability of the catalyst is determined. That is, the present application automatically switches the gas source by setting the switching program of the above three-way valves, thereby improving the reliability of the experimental results, improving the experimental efficiency and accelerating the response speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The accompanying drawings are incorporated into and constitute a part of the specification, illustrating embodiments consistent with the present application and, together with the specification, serving to explain the principles of the present application. It is obvious that the drawings described below are merely some embodiments of the present application, and a person of ordinary skill in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0061] Figure 1 A flow chart of a method for determining the cyclic regeneration stability of a catalyst shown as an exemplary embodiment of the present application;

[0062] Figure 2 for Figure 1 A schematic diagram of the structure of the hardware device on which the illustrated embodiment relies;

[0063] Figure 3 for Figure 1 A flow chart for determining the cyclic regeneration stability of a catalyst in an exemplary embodiment is shown;

[0064] Figure 4 A block diagram of a catalyst cyclic regeneration stability determination system according to an exemplary embodiment of the present application is shown;

[0065] Figure 5 A schematic diagram of the structure of a computer system suitable for implementing an electronic device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0066] The following describes the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will readily appreciate the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0067] It should be noted that the illustrations provided in the following embodiments are merely schematic illustrations of the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, quantity, and proportion of each component may be changed arbitrarily, and the component layout may also be more complex.

[0068] It should be understood that in the description of the present invention, if there are terms such as "upper" and "lower" indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0069] In the following description, numerous details are discussed to provide a more thorough explanation of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the embodiments of the present invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring the embodiments of the present invention.

[0070] See also Figure 1 , Figure 1 This is a flow chart of a method for determining the cyclic regeneration stability of a catalyst, as shown in an exemplary embodiment of the present application. The cyclic regeneration stability determination method is used to determine the cyclic regeneration stability of a catalyst based on a chemical chain reaction, and the cyclic regeneration stability determination method is performed in an online system.

[0071] like Figure 2 As shown, the online system includes a feed pipeline, a reactor 11, a cooler 13 and a gas-liquid separator 16 connected in sequence, and the feed pipeline includes a reaction gas inlet pipe, a reaction liquid inlet pipe, a purge gas inlet pipe, a regeneration gas inlet pipe and a regeneration liquid inlet pipe.

[0072] Please continue reading Figure 2 The reaction gas inlet pipe, the reaction liquid inlet pipe, and the purge gas inlet pipe are connected to a reaction three-way valve 8, wherein the reaction gas inlet pipe and the reaction liquid inlet pipe are connected to port 8a of the reaction three-way valve 8 via a common main pipe. A reaction gas flowmeter 1 is provided on the connecting pipe between the reaction gas inlet pipe and the main pipe. The reaction gas flowmeter 1 adopts a gas flowmeter. The gas flowmeter is of existing technology and will not be described in detail here. A reaction liquid vaporizer 2 and a reaction liquid feed pump 3 are provided on the connecting pipe between the reaction liquid inlet pipe and the main pipe. The purge gas inlet pipe is connected to port 8b of the reaction three-way valve 8. A purge gas flowmeter 4 is provided on the connecting pipe between the purge gas inlet pipe and the reaction three-way valve 8. The purge gas flowmeter 4 adopts a gas flowmeter. The gas flowmeter is of existing technology and will not be described in detail here. The reaction three-way valve 8 is connected to the first end of the reactor 11. A feed three-way valve 9 is provided on the connecting pipe between the 8c port of the reaction three-way valve 8 and the reactor 11. The 8c port of the reaction three-way valve 8 is connected to the 9a port of the feed three-way valve 9.

[0073] Please continue reading Figure 2 The regeneration liquid inlet pipe and the regeneration gas inlet pipe are connected to port 10b of the regeneration three-way valve 10 through the main pipeline. Port 10a of the regeneration three-way valve 10 is connected to the purge gas inlet pipe. The connecting pipe between the regeneration liquid inlet pipe and the main pipeline is equipped with a regeneration liquid vaporizer 6 and a regeneration liquid feed pump 7. The connecting pipe between the regeneration gas inlet pipe and the main pipeline is equipped with a regeneration gas flowmeter 5. The regeneration gas flowmeter 5 adopts a gas flowmeter. The gas flowmeter is conventional and will not be described in detail here. Port 10c of the regeneration three-way valve 10 is connected to port 9b of the feed three-way valve 9.

[0074] Please continue reading Figure 2 The first end of the reactor 11 is connected to the 9c port of the feed three-way valve 9, and the second end of the reactor 11 is connected to the first end of the cooler 13. A stop valve 12 is provided on the connecting pipe between the reactor 11 and the cooler 13. The reactor 11 can be a fixed bed reactor. The reactor 11 is provided with a heating mechanism 17. The heating mechanism 17 can be a heating furnace or the like. The heating furnace is a prior art and will not be described in detail here. The cooler 13 can be a condenser or the like. The cooler 13 is connected to a water cooler 14 so that low-temperature circulating water is input into the water cooler 13 through the water cooler 14, thereby cooling the material entering the cooler 13.

[0075] Please continue reading Figure 2 The gas-liquid separator 16 is used to separate the gas and liquid of the reacted material. The gas-liquid separator 16 has a gas outlet and a waste liquid outlet. The gas outlet is connected to a gas analyzer 18, which can be a gas chromatograph. A back pressure valve 15 is provided on the connecting pipe between the gas analyzer 18 and the gas-liquid separator 16.

[0076] Please continue reading Figure 2 The gas analyzer 18, the reactor 11, the reaction three-way valve 8, the regeneration three-way valve 10 and the feed three-way valve 9 are all electrically connected to a controller 19, which can be a PLC controller or the like.

[0077] like Figure 1 As shown, in an exemplary embodiment of the present application, the method for determining the cyclic regeneration stability includes at least steps S101 to S102.

[0078] Step S115 is described in detail as follows:

[0079] Step S101. Controlling the addition of catalyst to the reactor, and controlling the start-up of the gasifier and the cooler;

[0080] Specifically, in this embodiment, the water cooling machine is controlled to start at the same time;

[0081] In this application, the specific type of catalyst needs to be determined according to the specific test requirements;

[0082] Step S102. Obtaining the loading amount of the catalyst;

[0083] Step S103. Control the reaction three-way valve and the regeneration three-way valve so that the reaction three-way valve and the regeneration three-way valve are switched to be connected to the purge gas inlet pipe, and the feed three-way valve is switched to be connected to the reaction gas inlet pipe and the reaction liquid inlet pipe;

[0084] Step S104. Determine the reaction gas feed rate, reaction liquid feed rate, purge gas feed rate, regeneration gas feed rate, and regeneration liquid feed rate based on the loading amount;

[0085] Specifically, the reaction gas intake volume is determined according to the catalyst loading amount and the preset first target space velocity. Specifically, the product of the two is the reaction gas intake volume.

[0086] The reaction liquid feed amount is determined according to the catalyst loading amount and the preset second target space velocity. Specifically, the product of the two is the reaction liquid feed amount.

[0087] The purge gas intake volume is determined according to the catalyst loading amount and the preset third target space velocity. Specifically, the product of the two is the purge gas intake volume.

[0088] The regeneration gas intake volume is determined according to the catalyst loading amount and the preset fourth target space velocity. Specifically, the product of the two is the regeneration gas intake volume.

[0089] The regeneration liquid feed rate is determined based on the catalyst loading amount and the preset fifth target space velocity. Specifically, the product of the two is the regeneration liquid feed rate.

[0090] Step S105. Control and start all pipeline feeds so that the purge gas enters the reactor after passing through the reaction three-way valve and the feed three-way valve in sequence for pre-reaction purge;

[0091] Step S106. Control and start the purge gas flow meter to purge the reaction gas pipeline before the reaction;

[0092] Exemplarily, the duration of pre-reaction purge of the reaction gas pipeline is 10-60 minutes.

[0093] Step S107. Control the feed three-way valve and the regeneration three-way valve to allow the purge gas to purge the regeneration pipeline;

[0094] Exemplarily, the duration of purging the regeneration pipeline is 10-60 minutes;

[0095] Step S108. Control the outlet of the reaction three-way valve to be connected to the inlet of the feed three-way valve, and the inlet of the regeneration three-way valve to be connected to the regeneration gas flow meter;

[0096] Step S109. Control the start of the gas analyzer and perform sampling and stop sampling according to the preset sampling interval, sampling duration, and sampling stop duration;

[0097] Step S110. Control and start all feed pumps and heating mechanisms;

[0098] Step S111. Obtaining the real-time temperature of the catalyst bed in the reactor;

[0099] Step S112. If the real-time temperature is equal to the preset temperature threshold, the program for controlling the reaction three-way valve, the regeneration three-way valve, and the feed three-way valve is started, and the first time point when the valve cutting program starts is obtained;

[0100] In the present application, valves that need to perform valve cutting actions within the same time period all complete valve cutting at the start time of the time period at the same time.

[0101] Step S113. Control the reaction three-way valve, the regeneration three-way valve, and the feed three-way valve to cut the valves according to the preset cutting time and cutting sequence;

[0102] Exemplarily, the valve cutting procedure is as follows:

[0103] 1) Time period t1 is the reaction stage. The reaction three-way valve is switched to connect 8a to 8c. The regeneration three-way valve remains unchanged to connect 10a to 10c. The feed three-way valve is switched to connect 9a to 9c. The reaction gas enters the reactor through 8a, 8c, 9a, and 9c in sequence for reaction evaluation.

[0104] 2) Time period t2 is the reaction line purge stage, the reaction three-way valve is switched to connect 8b to 8c, the regeneration three-way valve and the feed three-way valve remain unchanged, and the purge gas enters the reactor through 8b, 8c, 9a, and 9c in sequence to purge the reaction line;

[0105] 3) Time period t3 is the regeneration stage. The regeneration three-way valve and the feed three-way valve are switched simultaneously, so that 10b is connected to 10c, and 9b is connected to 9c. The reaction three-way valve remains unchanged. At this time, the regeneration gas enters the reactor through 10b, 10c, 9b, and 9c in sequence to regenerate the catalyst;

[0106] 4) Time period t4 is the regeneration pipeline purge stage. The regeneration three-way valve is switched to connect 10a to 10c. The reaction three-way valve and the feed three-way valve remain unchanged. At this time, the purge gas enters the reactor through 10a, 10c, 9b, and 9c in sequence to purge the regeneration pipeline. After this stage, the evaluation of one cycle is completed;

[0107] 5) Time period t5 is the reaction stage of the next cycle. The reaction three-way valve and the feed three-way valve are switched simultaneously to connect 8a to 8c, 10a to 10c, and 9a to 9c. The connection status is consistent with time period t1. The valve switching steps 2) to 4) are then repeated.

[0108] Step S114. If a stop sampling signal is received, the reaction three-way valve, the regeneration three-way valve, and the feed three-way valve are controlled to be closed, and a second time point and a number of valve cutting cycles when the reaction three-way valve, the regeneration three-way valve, and the feed three-way valve are closed are obtained;

[0109] Step S115: Determine the cyclic regeneration stability of the catalyst according to the first time point, the second time point and the number of valve cutting cycles.

[0110] See also Figure 3 , Figure 3 for Figure 1 A flow chart for determining the cyclic regeneration stability of a catalyst in an exemplary embodiment is shown.

[0111] In related technologies, the catalyst regeneration stability evaluation process involves four stages: reaction, reaction line purge, regeneration, and regeneration line purge, typically switched manually. After analyzing these related technologies, the inventors found that the manual switching involved was cumbersome and prone to operational errors, resulting in unreliable experimental results. Therefore, considering that the catalyst is added to the reactor by controlling, the gasifier and the cooler are started, the filling amount of the catalyst is obtained, the reaction three-way valve and the regeneration three-way valve are controlled, so that the reaction three-way valve and the regeneration three-way valve are switched to be connected with the reaction gas inlet pipe and the purge gas inlet pipe, the feed three-way valve is switched to be connected with the reaction liquid inlet pipe, and the reaction gas inlet amount, the reaction liquid feed amount, the purge gas inlet amount, the regeneration gas inlet amount and the regeneration liquid feed amount are determined according to the filling amount, all pipeline feeds are controlled to be started, so that the purge gas enters the reactor after passing through the reaction three-way valve and the feed three-way valve in turn, and purges before the reaction, the purge gas flowmeter is controlled to be started to purge the reaction gas pipeline before the reaction, the feed three-way valve and the regeneration three-way valve are controlled to make the purge gas purge the regeneration pipeline, the outlet of the reaction three-way valve is controlled to be connected with the inlet of the feed three-way valve, and the inlet of the regeneration three-way valve is connected with the regeneration gas flowmeter, the gas analyzer is controlled to be started, and according to the preset The sampling interval, sampling duration and sampling stop time are used to perform sampling and stop sampling, control the start of all feed pumps and heating mechanisms, obtain the real-time temperature of the catalyst bed in the reactor, and if the real-time temperature is equal to the preset temperature threshold, control the reaction three-way valve, regeneration three-way valve and feed three-way valve to start valve cutting, obtain the first time point when valve cutting starts, control the reaction three-way valve, regeneration three-way valve and feed three-way valve to cut the valve according to the preset valve cutting time and valve cutting sequence, if a stop sampling signal is received, control the closing of the reaction three-way valve, regeneration three-way valve and feed three-way valve, obtain the second time point and valve cutting cycle number when the reaction three-way valve, regeneration three-way valve and feed three-way valve are closed, and determine the cyclic regeneration stability of the catalyst according to the first time point, the second time point and the valve cutting cycle number, that is, the present application automatically switches the gas source by setting the above three-way valve switching program, thereby improving the reliability of the experimental results, improving the experimental efficiency and increasing the response speed.

[0112] like Figure 3 As shown, in an exemplary embodiment of the present application, Figure 1 The process of determining the cyclic regeneration stability of the catalyst in the illustrated embodiment includes steps S3101 to S302, which are described in detail as follows:

[0113] Step S301. Determine the catalyst regeneration time according to the first time point and the second time point;

[0114] Specifically, the value obtained by subtracting the first time point from the second time point is the catalyst regeneration time;

[0115] Step S302: Determine the catalyst regeneration stability based on the regeneration time and the number of valve cutting cycles.

[0116] It should be noted that, in this application, the number of valve cutting cycles is the value obtained by dividing the number of valve cutting cycles of any one of the reaction three-way valve, the regeneration three-way valve, or the feed three-way valve by 2;

[0117] For example, in the present application, the number of valve cutting cycles and the cyclic regeneration time are used as evaluation indicators of the cyclic regeneration stability of the catalyst.

[0118] In a specific embodiment, the specific steps for cyclic regeneration stability of the catalyst (specifically a chemical chain methane oxidative coupling catalyst) are as follows:

[0119] Supply CH4 and O2 to the reaction gas flowmeter 1 and the regeneration gas flowmeter 5 respectively, fill 1g of oxygen carrier catalyst into the reactor 11, turn off the reaction liquid feed pump 3 and the regeneration liquid feed pump 7, turn off the reaction liquid vaporizer 2 and the regeneration liquid vaporizer 6, control the low-temperature circulating water temperature of the water chiller 14 to 5°C and turn on the circulating water;

[0120] The reaction gas inlet volume is determined based on the catalyst loading amount of 1 g and the preset first target space velocity of 10 mL / g / min. Specifically, the product of the two is the reaction gas inlet volume of 10 mL / min.

[0121] Since this embodiment does not involve liquid raw materials, the reaction liquid feed amount is determined based on the catalyst loading amount of 1g and the preset second target space velocity of 0mL / g / min. Specifically, the product of the two is the reaction liquid feed amount of 0mL / min;

[0122] The purge gas intake volume is determined based on the catalyst loading amount of 1 g and the preset third target space velocity of 50 mL / g / min. Specifically, the product of the two is the purge gas intake volume of 50 mL / min.

[0123] Since this embodiment does not involve liquid regeneration material, the regeneration gas intake volume is determined based on the catalyst loading amount 1g and the preset fourth target space velocity 0mL / g / min. Specifically, the product of the two is the regeneration gas intake volume 0mL / min.

[0124] The regeneration liquid feed rate is determined based on the catalyst loading amount of 1 g and the preset fifth target space velocity of 10 mL / g / min. Specifically, the product of the two is the regeneration liquid feed rate of 10 mL / min.

[0125] Control so that the upper inlet of the reaction three-way valve 8 (i.e., port 8a) is closed, and the lower inlet of the reaction three-way valve 8 (i.e., port 8b) is opened; the upper inlet of the feed three-way valve 9 (i.e., port 9a) is opened, and the lower inlet of the feed three-way valve 9 (i.e., port 9b) is closed; the upper inlet of the regeneration three-way valve 10 (i.e., port 10a) is opened, and the lower inlet of the regeneration three-way valve 10 (i.e., port 10b) is closed;

[0126] Control and start all feed pumps and heating mechanisms;

[0127] Obtaining the real-time temperature of the catalyst bed in the reactor;

[0128] If the real-time temperature is equal to the preset temperature threshold of 750°C, the reaction three-way valve, the regeneration three-way valve, and the feed three-way valve are controlled to start valve cutting, and the first time point when the valve cutting starts is obtained;

[0129] The reaction three-way valve, regeneration three-way valve and feed three-way valve are controlled to cut the valves according to the preset cutting time and cutting sequence, wherein the preset three-way valve group cutting program is: when the cutting program starts, the reaction three-way valve 8 and the feed three-way valve 9 are switched at the same time, and the feeding reaction starts, and the feeding lasts for 10 minutes (t1 is the reaction stage duration); the reaction three-way valve 8 is switched again, and the reaction pipeline purge stage is entered, and the purge lasts for 10 minutes (t2 is the purge stage duration); the feed three-way valve 9 and the regeneration three-way valve 10 are switched at the same time, and the regeneration stage is entered, and the regeneration lasts for 30 minutes (t3 is the regeneration stage duration); the regeneration three-way valve 10 is switched, and the regeneration pipeline purge stage is entered, and the purge lasts for 10 minutes (t4 is the purge stage duration), completing one cycle.

[0130] Control the start of the gas analyzer and set the sampling to start when the valve cutting program is started, the sampling interval is preset to 50 minutes, the sampling duration is preset to 10 minutes, and the sampling stop threshold (the sampling stop signal in this embodiment is preset to the CH4 conversion rate falling below 10%);

[0131] After 10 minutes of reaction, the CH4 conversion rate of the oxygen-carrying catalyst dropped from 90% to nearly 0%, indicating that the available lattice oxygen in the catalyst was completely consumed in the CH4 atmosphere after 10 minutes. After 10 minutes of O2 regeneration of the oxygen-carrying catalyst, the O2 conversion rate in the tail gas dropped from 51% to nearly 0%, indicating that the catalyst was completely regenerated after 10 minutes of O2 oxidation.

[0132] Upon receiving a stop sampling signal (CH4 conversion rate drops below 10%), the reaction three-way valve, the regeneration three-way valve, and the feed three-way valve are controlled to close, and the second time point and the number of valve cutting cycles when the reaction three-way valve, the regeneration three-way valve, and the feed three-way valve are closed are obtained;

[0133] Determining the catalyst regeneration time according to the first time point and the second time point, specifically, the catalyst regeneration time is obtained by subtracting the first time point from the second time point;

[0134] The catalyst's cyclic regeneration stability is determined based on the number of valve cutting cycles (i.e., the number of valve cutting cycles of one of the reaction three-way valve, regeneration three-way valve, or feed three-way valve divided by 2, which is also the number of times the catalyst is recycled) and the cyclic regeneration time. Specifically, the number of valve cutting cycles and the cyclic regeneration time are used as evaluation indicators of the catalyst's cyclic regeneration stability.

[0135] See also Figure 4 , Figure 4 A block diagram of a catalyst regeneration stability determination system according to an exemplary embodiment of the present invention is shown. The catalyst is a catalyst based on a chemical chain reaction. Figure 2 The system is shown online.

[0136] like Figure 4 As shown, in an exemplary embodiment of the present application,

[0137] The cyclic regeneration stability determination system M400 includes:

[0138] The first control module M401 is used to control the addition of catalyst to the reactor and control the start-up of the gasifier and the cooler;

[0139] The first acquisition module M402 is used to obtain the loading amount of the catalyst;

[0140] The second control module M403 is used to control the reaction three-way valve and the regeneration three-way valve to switch the reaction three-way valve and the regeneration three-way valve to be connected to the purge gas inlet pipe, and switch the feed three-way valve to be connected to the reaction gas inlet pipe and the reaction liquid inlet pipe;

[0141] The first determination module M404 is used to determine the reaction gas feed amount, the reaction liquid feed amount, the purge gas feed amount, the regeneration gas feed amount, and the regeneration liquid feed amount according to the loading amount;

[0142] The third control module M405 is used to control the start of all pipeline feeds so that the purge gas enters the reactor after passing through the reaction three-way valve and the feed three-way valve in sequence for pre-reaction purge;

[0143] The fourth control module M406 is used to control the start of the purge gas flow meter to purge the reaction gas pipeline before the reaction;

[0144] The fifth control module M407 is used to control the feed three-way valve and the regeneration three-way valve so that the purge gas can purge the regeneration pipeline;

[0145] The sixth control module M408 is used to control the outlet of the reaction three-way valve to be connected to the inlet of the feed three-way valve, and the inlet of the regeneration three-way valve to be connected to the regeneration gas flow meter;

[0146] The seventh control module M409 is used to control the start of the gas analyzer and to perform sampling and stop sampling according to the preset sampling interval, sampling duration and sampling stop duration;

[0147] The eighth control module M410 is used to control and start all feed pumps and heating mechanisms;

[0148] The second acquisition module M411 is used to obtain the real-time temperature of the catalyst bed in the reactor;

[0149] The ninth control module M412 is used to control the reaction three-way valve, the regeneration three-way valve, and the feed three-way valve to start valve switching if the real-time temperature is equal to the preset temperature threshold, and obtain the first time point when the valve switching starts;

[0150] The tenth control module M413 is used to control the reaction three-way valve, the regeneration three-way valve and the feed three-way valve to cut the valves according to the preset cutting time and cutting sequence;

[0151] The eleventh control module M414 is used to control the closing of the reaction three-way valve, the regeneration three-way valve and the feed three-way valve upon receiving the stop sampling signal, and obtain the second time point and the number of valve cutting cycles when the reaction three-way valve, the regeneration three-way valve and the feed three-way valve are closed;

[0152] The second determining module M415 is configured to determine the cyclic regeneration stability of the catalyst according to the first time point, the second time point, and the number of valve cutting cycles.

[0153] It should be noted that the catalyst recycling stability determination system provided in the above embodiment and the catalyst recycling stability determination method provided in the above embodiment are of the same concept, wherein the specific manner in which each module and unit performs operations has been described in detail in the method embodiment and will not be repeated here. In actual applications, the catalyst recycling stability determination system provided in the above embodiment can allocate the above functions to different functional modules as needed, that is, divide the internal structure of the device into different functional modules to complete all or part of the functions described above, and this is not limited here.

[0154] Another aspect of the present application is a computer-readable storage medium storing a computer program. When executed by a computer processor, the computer program causes the computer to perform the aforementioned method for determining the cyclic regeneration stability of a catalyst. The computer-readable storage medium may be included in the electronic device described in the above embodiments, or may exist independently and not be incorporated into the electronic device.

[0155] Figure 5 The following is a schematic diagram showing the structure of a computer system suitable for implementing an electronic device according to an embodiment of the present application. Figure 5 The computer system 500 of the electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0156] like Figure 5 As shown, the computer system 500 includes a central processing unit (CPU) 501, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 502 or the program loaded from the storage part 508 to the random access memory (RAM) 503, such as executing the method described in the above embodiment. Various programs and data required for system operation are also stored in the RAM 503. The CPU 501, ROM 502 and RAM 503 are connected to each other via a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.

[0157] The following components are connected to the I / O interface 505: an input section 506 including a keyboard, a mouse, and the like; an output section 507 including devices such as a cathode ray tube (CRT), a liquid crystal display (LCD), and a speaker; a storage section 508 including a hard disk and the like; and a communication section 509 including a network interface card such as a LAN (Local Area Network) card or a modem. The communication section 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to the I / O interface 505 as needed. Removable media 511, such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory, is installed in the drive 510 as needed, so that computer programs read therefrom can be installed into the storage section 1108 as needed.

[0158] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a computer program for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via the communication section 509, and / or installed from a removable medium 511. When the computer program is executed by the central processing unit (CPU) 501, the various functions defined in the system of the present application are executed.

[0159] It should be noted that the computer-readable medium shown in the embodiments of the present application can be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media can include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, which carries a computer-readable computer program. This propagated data signal can take a variety of forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. A computer program embodied on a computer-readable medium may be transmitted using any suitable medium, including but not limited to wireless, wired, or any suitable combination thereof.

[0160] The flowcharts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present application. Among them, each box in the flowchart or block diagram can represent a module, program segment, or part of the code, and the above-mentioned module, program segment, or part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart, can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0161] The units involved in the embodiments described in this application may be implemented by software or hardware, and the units described may also be set in a processor. In some cases, the names of these units do not constitute limitations on the units themselves.

[0162] Another aspect of the present application provides a computer-readable storage medium having a computer program stored thereon. When executed by a computer processor, the computer program causes the computer to perform the aforementioned method for determining the cyclic regeneration stability of a catalyst. The computer-readable storage medium may be included in the electronic device described in the above embodiments, or may exist independently and not be incorporated into the electronic device.

[0163] Another aspect of the present application provides a computer program product or computer program, comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the method for determining the cyclic regeneration stability of the catalyst provided in each of the above embodiments.

[0164] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, any equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A method for determining the cyclic regeneration stability of a catalyst, wherein the catalyst is a catalyst based on a chemical chain reaction, and the cyclic regeneration stability determination method is performed in an online system, wherein the online system comprises a feed pipe, a reactor, a cooler and a gas-liquid separator connected in sequence, wherein the feed pipe comprises a reaction gas inlet pipe, a reaction liquid inlet pipe, a purge gas inlet pipe, a regeneration gas inlet pipe and a regeneration liquid inlet pipe, wherein the reaction liquid inlet pipe and the regeneration liquid inlet pipe are both provided with a gasifier and a feed pump, and the connecting pipes between the reaction gas inlet pipe, the purge gas inlet pipe, the reaction liquid inlet pipe and the reactor are provided with a reaction inlet pipe. A three-way valve, a regeneration three-way valve is provided on the connecting pipe between the regeneration gas inlet pipe and the regeneration liquid inlet pipe and the reactor, a feed three-way valve is provided on the connecting pipe between the reaction three-way valve and the regeneration three-way valve and the reactor, the gas-liquid separator is provided with a gas outlet and a waste liquid outlet, the reactor is provided with a heating mechanism, the gas outlet is connected to a gas analyzer, the reaction gas inlet pipe, the purge gas inlet pipe and the regeneration gas inlet pipe are respectively provided with a reaction gas flowmeter, a purge gas flowmeter and a regeneration gas flowmeter, the gas analyzer, the reactor, the reaction three-way valve, the regeneration three-way valve and the feed three-way valve are all connected to a controller; The cyclic regeneration stability determination method includes: controlling the addition of catalyst into the reactor, and controlling the startup of the gasifier and the cooler; Obtaining the loading amount of the catalyst; Control the reaction three-way valve and the regeneration three-way valve so that the reaction three-way valve and the regeneration three-way valve are switched to be connected to the purge gas inlet pipe, and the feed three-way valve is switched to be connected to the reaction gas inlet pipe and the reaction liquid inlet pipe; According to the loading amount, the reaction gas feed amount, the reaction liquid feed amount, the purge gas feed amount, the regeneration gas feed amount and the regeneration liquid feed amount are determined; Control and start all pipeline feeds so that the purge gas enters the reactor after passing through the reaction three-way valve and the feed three-way valve in sequence for pre-reaction purge; Control and start the purge gas flow meter to purge the reaction gas pipeline before the reaction; Control the feed three-way valve and the regeneration three-way valve to allow the purge gas to purge the regeneration pipeline; The outlet of the control reaction three-way valve is connected to the inlet of the feed three-way valve, and the inlet of the regeneration three-way valve is connected to the regeneration gas flow meter; Control the start-up of the gas analyzer, and start and stop sampling according to the preset sampling interval, sampling duration and sampling stop duration; Control and start all feed pumps and heating mechanisms; Obtaining the real-time temperature of the catalyst bed in the reactor; If the real-time temperature is equal to the preset temperature threshold, the reaction three-way valve, the regeneration three-way valve, and the feed three-way valve are controlled to start valve cutting, and a first time point when the valve cutting starts is obtained; Control the reaction three-way valve, regeneration three-way valve and feed three-way valve to cut valves according to the preset cutting time and cutting sequence; If a stop sampling signal is received, the reaction three-way valve, the regeneration three-way valve and the feed three-way valve are controlled to be closed, and the second time point and the number of valve cutting cycles when the reaction three-way valve, the regeneration three-way valve and the feed three-way valve are closed are obtained; The cyclic regeneration stability of the catalyst is determined according to the first time point, the second time point and the number of valve cutting cycles.

2. The method for determining cyclic regeneration stability according to claim 1, wherein: All valves that need to be cut off in the same time period will complete the cutting off at the same time at the start time of the time period.

3. The method for determining cyclic regeneration stability according to claim 1, wherein: Determine the catalyst's cyclic regeneration stability, including: Determining a catalyst regeneration time according to the first time point and the second time point; The cyclic regeneration stability of the catalyst is determined based on the cyclic regeneration time and the number of valve cutting cycles.

4. The method for determining cyclic regeneration stability according to claim 1, wherein: Determine the reagent gas inlet volume, including: Determining the reaction gas intake rate according to the catalyst loading amount and a preset first target space velocity; and / or, determining the reaction solution feed amount, comprising: The reaction liquid feed rate is determined according to the catalyst loading amount and the preset second target space velocity.

5. The method for determining cyclic regeneration stability according to claim 1, wherein: Determine the purge gas intake volume, including: The purge gas intake volume is determined according to the catalyst loading volume and a preset third target space velocity.

6. The method for determining cyclic regeneration stability according to claim 1, wherein: Determine the regeneration gas intake volume, including: The regeneration gas intake volume is determined according to the catalyst loading volume and the preset fourth target space velocity.

7. The method for determining cyclic regeneration stability according to claim 1, characterized in that: Determine the regeneration liquid feed rate, including: Determining the regeneration liquid feed rate according to the catalyst loading amount and the preset fifth target space velocity; and / or, the duration of purging the regeneration pipeline is 10-60 minutes; And / or, the duration of purging the reaction gas pipeline is 10-60 minutes.

8. A catalyst cyclic regeneration stability determination system, wherein the catalyst is a catalyst based on a chemical chain reaction, and the cyclic regeneration stability determination system is carried out in an online system, wherein the online system comprises a feed pipe, a reactor, a cooler and a gas-liquid separator connected in sequence, wherein the feed pipe comprises a reaction gas inlet pipe, a reaction liquid inlet pipe, a purge gas inlet pipe, a regeneration gas inlet pipe and a regeneration liquid inlet pipe, wherein the reaction liquid inlet pipe and the regeneration liquid inlet pipe are both provided with a gasifier and a feed pump, and the connecting pipes between the reaction gas inlet pipe, the purge gas inlet pipe, the reaction liquid inlet pipe and the reactor are provided with a reaction three A regeneration three-way valve is provided on the connecting pipe between the regeneration gas inlet pipe and the regeneration liquid inlet pipe and the reactor, a feed three-way valve is provided on the connecting pipe between the reaction three-way valve and the regeneration three-way valve and the reactor, the gas-liquid separator is provided with a gas outlet and a waste liquid outlet, the reactor is provided with a heating mechanism, the gas outlet is connected to a gas analyzer, the reaction gas inlet pipe, the purge gas inlet pipe and the regeneration gas inlet pipe are respectively provided with a reaction gas flowmeter, a purge gas flowmeter and a regeneration gas flowmeter, the gas analyzer, the reactor, the reaction three-way valve, the regeneration three-way valve and the feed three-way valve are all electrically connected to a controller; The cyclic regeneration stability determination system includes: a first control module, configured to control the addition of a catalyst into the reactor, and control the startup of a gasifier and a cooler; A first acquisition module is used to obtain the loading amount of the catalyst; The second control module is used to control the reaction three-way valve and the regeneration three-way valve to switch the reaction three-way valve and the regeneration three-way valve to be connected to the purge gas inlet pipe, and switch the feed three-way valve to be connected to the reaction gas inlet pipe and the reaction liquid inlet pipe; A first determining module is used to determine the reaction gas feed amount, the reaction liquid feed amount, the purge gas feed amount, the regeneration gas feed amount and the regeneration liquid feed amount according to the loading amount; The third control module is used to control the start of all pipeline feeds so that the purge gas enters the reactor after passing through the reaction three-way valve and the feed three-way valve in sequence to perform pre-reaction purge; The fourth control module is used to control the start of the purge gas flow meter to purge the reaction gas pipeline before the reaction; A fifth control module is used to control the feed three-way valve and the regeneration three-way valve so that the purge gas can purge the regeneration pipeline; a sixth control module, configured to control the outlet of the reaction three-way valve to be in communication with the inlet of the feed three-way valve, and the inlet of the regeneration three-way valve to be in communication with the regeneration gas flow meter; The seventh control module is used to control the start of the gas analyzer and to perform sampling and stop sampling according to the preset sampling interval, sampling duration and sampling stop duration; An eighth control module is used to control and start all feed pumps and heating mechanisms; The second acquisition module is used to obtain the real-time temperature of the catalyst bed in the reactor; a ninth control module, for controlling the reaction three-way valve, the regeneration three-way valve, and the feed three-way valve to start valve cutting if the real-time temperature is equal to a preset temperature threshold, and obtaining a first time point when the valve cutting starts; A tenth control module is used to control the reaction three-way valve, the regeneration three-way valve and the feed three-way valve to cut the valves according to the preset cutting time and cutting sequence; The eleventh control module is used to control the closing of the reaction three-way valve, the regeneration three-way valve and the feed three-way valve if a stop sampling signal is received, and obtain the second time point and the number of valve cutting cycles when the reaction three-way valve, the regeneration three-way valve and the feed three-way valve are closed; The second determining module is configured to determine the cyclic regeneration stability of the catalyst according to the first time point, the second time point, and the number of valve cutting cycles.

9. An electronic device, characterized in that: The electronic device comprises: one or more processors; A storage device for storing one or more programs, which, when executed by the one or more processors, enables the electronic device to implement the method for determining the cyclic regeneration stability of the catalyst as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that A computer program is stored thereon, and when the computer program is executed by a processor of a computer, the computer is caused to execute the method for determining the cyclic regeneration stability of the catalyst according to any one of claims 1 to 7.

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