A method for controlling desorption temperature of a zeolite wheel for liquid injection exhaust gas treatment

Abstract

The application discloses a kind of for liquid injection exhaust gas treatment zeolite rotary desorption temperature process control method, it is related to exhaust gas desorption temperature control technical field, including: collection and binding adsorption zone, desorption zone and heat accumulation oxidation device operating data, generate zeolite adsorption material parameter record, heat accumulation oxidation device operating boundary data and historical operating data;Calculate entering adsorption amount, replacement discharge amount and actual retention adsorption amount, generate the actual retention adsorption amount record of desorption temperature section;Call historical operating data to train desorption release prediction model, output current desorption area desorption temperature process;According to current desorption area desorption temperature process, carry out desorption hot air heating, keep and cool down, correct the desorption temperature section holding time of next rotary angle interval, rewrite historical operating data, update model training data;Realize stable desorption release process, reduce residual adsorption amount, improve the pertinence and reliability of closed loop correction result.

Description

Technical Field

[0001] This invention relates to the field of waste gas desorption temperature control technology, and in particular to a method for controlling the desorption temperature process of a zeolite rotor for treating liquid-injected waste gas. Background Technology

[0002] The liquid injection process in the production of power batteries and energy storage batteries generates low-concentration, high-volume waste gas containing various volatile organic compounds. In engineering, a combination of zeolite rotor adsorption concentration and regenerative thermal oxidation device is usually used for treatment. The zeolite rotor retains organic components in the adsorption zone, and then enters the desorption zone with the rotor rotation. The adsorption group is decomposed and concentrated by the desorption hot air, and then sent to the regenerative thermal oxidation device to complete high-temperature oxidation. The desorption process is generally controlled by heating, holding and cooling according to the set temperature, rotor speed and operating experience.

[0003] However, conventional control methods still have room for improvement. On the one hand, the desorption temperature process is usually based on a fixed temperature range or empirical operating parameters, and the actual retained adsorption amount in the current desorption zone and the differences in desorption temperature of each injected waste gas component are relatively limited. On the other hand, there is still room to further improve the correlation between the desorption release amount and the mass concentration of the concentrated waste gas at the inlet of the regenerative oxidizer, the combustion chamber temperature of the regenerative oxidizer, and the pressure recovery period at the inlet of the regenerative oxidizer. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the present invention provides a method for controlling the desorption temperature process of a zeolite rotor for treating liquid-injected waste gas, which solves the problems of insufficient matching between the desorption temperature process and the actual adsorption load in the local area of ​​the rotor, and insufficient coordination between the desorption release process and the operating boundary of the regenerative oxidation device in the existing technology.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: This invention provides a method for controlling the desorption temperature process of a zeolite rotor in the treatment of liquid-injected waste gas. The method includes: collecting and binding operating data from the adsorption zone, desorption zone, and regenerative thermal oxidation device; generating basic operating data; screening historical stable operating records; performing mixed liquid-injected waste gas breakthrough tests, stepped temperature rise desorption tests, and cyclic desorption tests on candidate zeolite adsorbent materials; generating zeolite adsorbent material parameter records, regenerative thermal oxidation device operating boundary data, and historical operating data; reading historical operating data to form continuous angle records and rotor angle intervals; identifying the current desorption zone and tracing back to the previous adsorption period; calculating the amount of adsorption entering, the amount of displaced and discharged, and the actual amount of adsorption retained; and dividing the desorption temperature range. Generate records of the actual adsorption amount retained in the desorption temperature range; based on the records of the actual adsorption amount retained in the desorption temperature range, the parameter records of the zeolite adsorption material, and the operating boundary data of the regenerative oxidation device, calculate the allowable desorption release amount for each control period, generate candidate desorption temperature processes, call historical operating data to train the desorption release prediction model, screen candidate desorption temperature processes, and output the desorption temperature process of the current desorption region; execute the desorption hot air heating, holding, and cooling according to the desorption temperature process of the current desorption region, collect desorption feedback data and regenerative oxidation device feedback data, correct the holding time of the desorption temperature range in the next rotor angle interval, write back historical operating data, update the model training data, and generate closed-loop correction results.

[0007] As a preferred embodiment of the zeolite rotor desorption temperature process control method for treating liquid injection waste gas according to the present invention, the step of generating basic operating data and screening historical stable operating records includes: collecting and binding operating data of the adsorption zone, desorption zone and regenerative thermal oxidation device, generating basic operating data, reading the permissible mass concentration at the outlet of the regenerative thermal oxidation device, screening operating segments based on the basic operating data and the permissible mass concentration at the outlet of the regenerative thermal oxidation device, and generating historical stable operating records.

[0008] As a preferred embodiment of the zeolite rotor desorption temperature process control method for treating liquid-injected waste gas according to the present invention, the generation of zeolite adsorption material parameter records, regenerative thermal oxidation device operating boundary data, and historical operating data includes: preparing mixed liquid-injected waste gas samples based on basic operating data; performing mixed liquid-injected waste gas breakthrough tests, step-heating desorption tests, and cyclic desorption tests on candidate zeolite adsorption materials to obtain the inflow adsorption amount, displacement discharge amount, desorption heating power, desorption duration, desorption completion temperature, desorption amount per unit time, material tolerance temperature upper limit, and cyclic adsorption capacity retention amount; calculating the unit desorption energy consumption value based on the inflow adsorption amount, displacement discharge amount, desorption heating power, and desorption duration; determining the zeolite adsorption material; organizing the desorption completion temperature, desorption amount per unit time, material tolerance temperature upper limit, unit desorption energy consumption value, and cyclic adsorption capacity retention amount to generate zeolite adsorption material parameter records; generating regenerative thermal oxidation device operating boundary data based on historical stable operating records; and linking the basic operating data, zeolite adsorption material parameter records, and regenerative thermal oxidation device operating boundary data to generate historical operating data.

[0009] As a preferred embodiment of the zeolite rotor desorption temperature process control method for treating liquid injection waste gas according to the present invention, the step of identifying the current desorption region and tracing back the previous adsorption period includes: organizing the zeolite rotor angle position, zeolite rotor speed, adsorption zone angle range, and desorption zone angle range from historical operating data according to the sampling time to form a continuous angle record and rotor angle interval; based on the desorption zone angle range, identifying the rotor angle interval that enters the desorption zone angle range in the continuous angle record to determine the current desorption region; and searching backward along the zeolite rotor rotation direction to find the sampling time when the current desorption region entered the adsorption zone angle range and the sampling time when it left the adsorption zone angle range to generate the previous adsorption period.

[0010] As a preferred embodiment of the zeolite rotor desorption temperature process control method for treating liquid-injected waste gas according to the present invention, the step of dividing the desorption temperature segment and generating a record of the actual retained adsorption amount of the desorption temperature segment includes: retrieving the mass concentration of the component at the inlet of the adsorption zone, the mass concentration of the component at the outlet of the adsorption zone, and the treatment air volume of the adsorption zone during the previous adsorption period; calculating the amount of adsorption entering, the amount of displaced and discharged, and the actual retained adsorption amount to obtain the actual retained adsorption amount of each liquid-injected waste gas component; based on the actual retained adsorption amount of each liquid-injected waste gas component, the desorption completion temperature of each liquid-injected waste gas component, and the temperature deviation of the repeated step-heating desorption test, sorting according to the desorption completion temperature and comparing the desorption completion temperature difference of adjacent liquid-injected waste gas components to generate a desorption temperature segment; summarizing the actual retained adsorption amount of each liquid-injected waste gas component within the same desorption temperature segment, determining the actual retained adsorption amount of the desorption temperature segment and the corresponding temperature of the desorption temperature segment, binding the current desorption area number and the previous adsorption period, and generating a record of the actual retained adsorption amount of the desorption temperature segment.

[0011] As a preferred embodiment of the zeolite rotor desorption temperature process control method for treating liquid injection waste gas according to the present invention, the calculation of the allowable desorption release amount for each control period includes: reading the actual retained adsorption amount of each liquid injection waste gas component recorded in the actual retained adsorption amount record of each desorption temperature segment, the actual retained adsorption amount of each desorption temperature segment, the zeolite adsorption material parameter record, the operating boundary data of the regenerative oxidation device, and historical operating data; calculating the lower heating value per unit mass of the desorbed waste gas; performing combustion chamber temperature boundary calculation, inlet concentrated waste gas mass concentration boundary calculation, and pressure recovery period identification; and generating the allowable desorption release amount and pressure recovery period marker for each control period.

[0012] As a preferred embodiment of the zeolite rotor desorption temperature process control method for treating liquid-injected waste gas according to the present invention, the step of generating candidate desorption temperature processes and training a desorption release prediction model by calling historical operating data includes: generating candidate desorption temperature processes based on the allowable desorption release amount for each control period, the actual retained adsorption amount in the desorption temperature segment, the corresponding temperature of the desorption temperature segment, the desorption amount per unit time at different desorption temperatures, the upper limit of the material's tolerance temperature, the actual heating rate record in the historical operating data, and the residence time of the current desorption region in the desorption zone; training the desorption release prediction model through historical operating data, wherein the desorption temperature processes in the historical operating data are uniformly represented by the desorption hot air inlet temperature according to the corresponding records of inlet and outlet temperatures, and inputting the candidate desorption temperature processes into the desorption release prediction model to obtain the predicted desorption release amount for each control period, the predicted combustion chamber temperature for each control period, the predicted fuel consumption, and the predicted residual adsorption amount.

[0013] As a preferred embodiment of the zeolite rotor desorption temperature process control method for liquid injection waste gas treatment described in this invention, the process of screening candidate desorption temperatures and outputting the current desorption temperature of the desorption region includes: screening candidate desorption temperatures based on the comparison results of the predicted desorption release amount and the allowable desorption release amount for each control period, the pressure recovery period marker, the predicted combustion chamber temperature for each control period, the upper limit of the combustion chamber operating temperature of the regenerative oxidation device, and the upper limit of the material tolerance temperature; sorting the candidates according to the predicted fuel consumption and the predicted residual adsorption amount; and outputting the current desorption temperature of the desorption region.

[0014] As a preferred embodiment of the zeolite rotor desorption temperature process control method for treating liquid injection waste gas according to the present invention, the step of executing desorption hot air heating, holding, and cooling according to the current desorption zone desorption temperature process includes: reading the current desorption zone desorption temperature process and pressure recovery period marker, executing desorption hot air heating, holding, and cooling, collecting desorption feedback data and regenerative oxidation device feedback data, and generating the current desorption zone execution feedback record; performing actual desorption amount calculation and residual adsorption amount calculation on the current desorption zone execution feedback record; when the desorption zone angle range corresponds to multiple rotor angle intervals in the same control period, determining the equivalent actual desorption amount belonging to the current desorption zone according to the angle overlap ratio between the rotor angle interval corresponding to the current desorption zone and the desorption zone angle range; combining the actual retained adsorption amount of each liquid injection waste gas component, calculating the actual desorption amount of each liquid injection waste gas component and the residual adsorption amount of each liquid injection waste gas component; summarizing the residual ratio of the desorption temperature segment, and generating the current desorption zone residual accounting record.

[0015] As a preferred embodiment of the zeolite rotor desorption temperature process control method for treating liquid injection waste gas according to the present invention, the steps of correcting the holding time of the desorption temperature segment in the next rotor angle interval, writing back historical operating data, and updating model training data include: correcting the holding time of the desorption temperature segment in the next rotor angle interval based on the current residual accounting record of the desorption region; judging the release exceeding limit, peak conflict, and emission compliance status based on the actual desorption release amount, actual desorption release peak time, allowable desorption release amount for each control period, pressure recovery period marker, volatile organic compound mass concentration at the outlet of the regenerative oxidation device, and allowable mass concentration at the outlet of the regenerative oxidation device in the current desorption region execution feedback record, and generating an operation feedback judgment record; and writing back historical operating data and updating model training data based on the holding time of the desorption temperature segment in the next rotor angle interval and the operation feedback judgment record to generate a closed-loop correction result.

[0016] The beneficial effects of this invention are as follows: By identifying the current desorption region and tracing back to the previous adsorption period, the amount of adsorption entering, the amount of displaced and discharged, and the actual amount of adsorption retained are calculated, forming a record of the actual amount of adsorption retained in the desorption temperature range, providing a quantifiable control basis for determining the desorption temperature process in the current desorption region; by calculating the allowable desorption release amount for each control period, candidate desorption temperature processes are generated and screened, so that the heating, holding, and cooling of the desorption hot air are constrained by the zeolite adsorption material parameter record and the operating boundary data of the regenerative oxidation device, thereby achieving a stable desorption release process, reducing the residual adsorption amount, and improving the pertinence and reliability of the closed-loop correction results. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a flowchart of a method for controlling the desorption temperature process of a zeolite rotor used in liquid injection waste gas treatment.

[0019] Figure 2 This is a flowchart for generating the preceding adsorption phase.

[0020] Figure 3 A flowchart for generating records of the actual adsorption amount retained within the desorption temperature range.

[0021] Figure 4 This is a flowchart for generating the desorption temperature process in the current desorption region.

[0022] Figure 5 This is a comparison chart of desorption release amounts.

[0023] Figure 6 This is a comparison chart of combustion chamber temperatures in a regenerative oxidation device. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0027] Reference Figures 1-6 This is one embodiment of the present invention, which provides a method for controlling the desorption temperature process of a zeolite rotor for treating liquid injection waste gas, comprising the following steps: S1. Collect and bind the operating data of the adsorption zone, desorption zone and regenerative thermal oxidation device, generate basic operating data, screen historical stable operating records, and perform mixed liquid injection waste gas breakthrough test, stepped temperature rise desorption test and cyclic desorption test on candidate zeolite adsorbent materials to generate zeolite adsorbent material parameter records, regenerative thermal oxidation device operating boundary data and historical operating data.

[0028] Collect and bind the operating data of the adsorption zone, desorption zone, and regenerative thermal oxidation device to generate basic operating data. Read the permitted mass concentration at the outlet of the regenerative thermal oxidation device. Based on the basic operating data and the permitted mass concentration at the outlet of the regenerative thermal oxidation device, filter the operating segments and generate historical stable operating records.

[0029] Furthermore, operational data for the treatment of liquid injection waste gas are collected. Specifically, the mass concentration of components at the inlet of the adsorption zone, the air volume treated in the adsorption zone, the temperature and humidity of the liquid injection waste gas at the inlet of the adsorption zone are collected, and the mass concentration of components at the outlet of the adsorption zone is collected.

[0030] The angular position and rotational speed of the zeolite rotor are collected by a zeolite rotor encoder, and the angular range of the adsorption zone and the angular range of the desorption zone are obtained by the structural parameters of the zeolite rotor.

[0031] The desorption hot air outlet temperature, the mass concentration of components in the desorption waste gas outlet, and the desorption air volume were collected at the desorption zone outlet.

[0032] The following data are collected at the inlet of the regenerative thermal oxidizer: concentration of concentrated exhaust gas at the inlet of the regenerative thermal oxidizer, flow rate of concentrated exhaust gas at the inlet of the regenerative thermal oxidizer, and inlet pressure of the regenerative thermal oxidizer. The combustion chamber temperature of the regenerative thermal oxidizer is collected at the combustion chamber. The timing of the reversing valve action, the protection action record, and the fuel consumption of the regenerative thermal oxidizer are collected through the control record of the regenerative thermal oxidizer. The concentration of volatile organic compounds at the outlet of the regenerative thermal oxidizer is collected at the outlet of the regenerative thermal oxidizer.

[0033] Furthermore, based on the same sampling time, the corresponding operating data of the adsorption zone, desorption zone, and regenerative oxidation device are bound to generate a single operating record; if a single operating record lacks the data required for subsequent calculations, the single operating record is deleted, and the retained operating records form the basic operating data.

[0034] Furthermore, the permitted emission concentration of volatile organic compounds (VOCs) recorded in the discharge permit document, environmental impact assessment approval document, or environmental protection acceptance record is read, and the permitted emission concentration of VOCs is converted into units that are the same as the mass concentration of VOCs at the outlet of the regenerative thermal oxidation device, thus generating the permitted mass concentration at the outlet of the regenerative thermal oxidation device.

[0035] Furthermore, based on the permitted mass concentration at the outlet of the regenerative thermal oxidizer, historical stable operation records are screened. Specifically, in the basic operation data, operation segments that simultaneously meet the following conditions are retained: the mass concentration of volatile organic compounds at the outlet of the regenerative thermal oxidizer is not higher than the permitted mass concentration at the outlet of the regenerative thermal oxidizer; there are no protection shutdown records in the protection action records of the regenerative thermal oxidizer; and the fuel consumption of the regenerative thermal oxidizer has continuous sampling records. These segments are then used to generate historical stable operation records.

[0036] It should be noted that the historical stable operation record is an operation segment formed when the regenerative thermal oxidation unit is in a state of compliant emissions, no protection shutdown, and continuous fuel consumption recording.

[0037] Based on basic operating data, mixed liquid-injected waste gas samples were prepared, and mixed liquid-injected waste gas breakthrough tests, stepped temperature desorption tests, and cyclic desorption tests were performed on candidate zeolite adsorbent materials to obtain the amount of adsorption entering the system, the amount of waste gas discharged through the system, the desorption heating power, the desorption duration, the desorption completion temperature, the amount of waste gas desorbed per unit time, the upper limit of the material's tolerance temperature, and the amount of cyclic adsorption capacity retained.

[0038] By calculating the unit desorption energy consumption based on the adsorption capacity, displacement discharge capacity, desorption heating power, and desorption duration, the zeolite adsorption material is determined. The desorption completion temperature, desorption capacity per unit time, upper limit of material tolerance temperature, unit desorption energy consumption, and cyclic adsorption capacity retention are compiled to generate zeolite adsorption material parameter records. Based on historical stable operation records, the operating boundary data of the regenerative oxidation device is generated. By linking the basic operating data, zeolite adsorption material parameter records, and regenerative oxidation device operating boundary data, historical operating data is generated.

[0039] Furthermore, a mixed liquid-injected waste gas breakthrough test was conducted. Specifically, a mixed liquid-injected waste gas sample was prepared according to the mass concentration of the inlet component, the humidity of the liquid-injected waste gas inlet, and the treatment air volume of the adsorption zone in the basic operating data. Candidate zeolite adsorbent materials were respectively filled into test adsorption units of the same size, and the mixed liquid-injected waste gas sample was passed through the test adsorption unit. The mass concentration of the inlet component, the mass concentration of the outlet component, the inlet air volume, and the test duration of the test adsorption unit were continuously collected. The breakthrough sequence, the amount of liquid-injected waste gas component entering the adsorption, and the amount of liquid-injected waste gas discharged were recorded.

[0040] The penetration sequence refers to the order in which each injected waste gas component forms a concentration increase process at the outlet of the test adsorption unit, and the displacement discharge amount is the mass of the component discharged when the mass concentration of the component at the outlet of the test adsorption unit is higher than the mass concentration of the component at the inlet of the test adsorption unit.

[0041] Furthermore, a stepped-temperature desorption test was performed. Specifically, the candidate zeolite adsorbent material after the mixed liquid injection exhaust gas breakthrough test was transferred to the desorption test unit. The unit was operated in a manner that the desorption hot air temperature was continuously increased from low to high. The inlet temperature of the desorption hot air, the outlet temperature of the desorption hot air, the mass concentration of the components at the outlet of the desorption exhaust gas, the desorption air volume, and the desorption heating power were continuously collected. The desorption start temperature, peak temperature, and completion temperature of each component of the liquid injection exhaust gas were recorded, as well as the temperature deviation of the stepped-temperature desorption test and the amount of desorption per unit time at different desorption temperatures. The corresponding inlet and outlet temperature records were generated based on the inlet and outlet temperatures of the desorption hot air at the same sampling time.

[0042] It should be noted that the repeated temperature deviation of the stepped temperature desorption test is the difference between the maximum and minimum desorption completion temperatures obtained from multiple stepped temperature desorption tests of the same injected waste gas component.

[0043] Furthermore, a cyclic desorption test was performed. Specifically, the mixed liquid injection waste gas adsorption process, the heating desorption process, and the cooling re-adsorption process were repeatedly performed on the candidate zeolite adsorbent material. The adsorption capacity, desorption heating power, desorption duration, displacement discharge, and material temperature change were continuously recorded for each cycle. The upper limit of the material's tolerance temperature was determined based on the cyclic adsorption capacity change. The cyclic adsorption capacity retention was generated based on the adsorption capacity of the last completed cycle and the adsorption capacity of the first completed cycle.

[0044] It should be noted that the upper limit of the material's tolerance temperature is the material temperature corresponding to the previous completed cycle when the cyclic adsorption capacity begins to fall below the previous cycle adsorption capacity during the cyclic desorption test.

[0045] Furthermore, based on the amount of adsorption entering, the amount of displacement exiting, the desorption heat power, and the desorption duration, the unit desorption energy consumption value of each candidate zeolite adsorbent is calculated.

[0046] Specifically, during the heating and desorption process, the desorption heat power is read according to the sampling time. The desorption heat power of each sampling period is multiplied by the length of the corresponding sampling period and then summed to obtain the energy consumed in the heating and desorption process. The amount of adsorption entering is subtracted from the amount of displaced adsorption to obtain the actual amount of adsorption retained. The ratio of the energy consumed in the heating and desorption process to the actual amount of adsorption retained is used as the unit desorption energy consumption value. The unit desorption energy consumption value represents the desorption energy consumption corresponding to the unit of actual adsorption retained. Candidate zeolite adsorbent materials with zero actual adsorption retained are not included in the material ranking.

[0047] Furthermore, candidate zeolite adsorbents are ranked from low to high according to their unit desorption energy consumption, and the candidate zeolite adsorbent with the lowest unit desorption energy consumption is selected as the zeolite adsorbent; when the unit desorption energy consumption is the same, the candidate zeolite adsorbent with the highest retention of cyclic adsorption capacity is selected.

[0048] Furthermore, based on the determined zeolite adsorbent material, the following parameters are recorded: zeolite adsorbent material type, desorption completion temperature of each injected waste gas component, corresponding inlet and outlet temperatures, lower heating value per unit mass of each injected waste gas component, upper limit of the material's tolerance temperature, desorption amount per unit time at different desorption temperatures, temperature deviation of repeated tests in step-heating desorption, unit desorption energy consumption, and retention of cyclic adsorption capacity.

[0049] Furthermore, based on historical stable operation records, operational boundary data for the regenerative thermal oxidation unit is generated.

[0050] Specifically, the maximum combustion chamber temperature of the regenerative thermal oxidizer in the historical stable operation record is recorded as the upper limit of the combustion chamber operating temperature of the regenerative thermal oxidizer, and the maximum mass concentration of the concentrated exhaust gas at the inlet of the regenerative thermal oxidizer in the historical stable operation record is recorded as the upper limit of the mass concentration of the concentrated exhaust gas at the inlet of the regenerative thermal oxidizer. Based on the action time of the reversing valve of the regenerative thermal oxidizer and the inlet pressure of the regenerative thermal oxidizer, an inlet pressure recovery record of the regenerative thermal oxidizer is generated.

[0051] Among them, the inlet pressure recovery record of the regenerative oxidizer is a record of the time period formed when the inlet pressure of the regenerative oxidizer changes from the directional disturbance state to the pre-directional pressure fluctuation range after each operation of the reversing valve of the regenerative oxidizer.

[0052] Furthermore, for each operation of the regenerative thermal oxidizer's reversing valve, the moment of valve operation is taken as the starting point of the pressure recovery process. The inlet pressure sampling value of the regenerative thermal oxidizer is read between the moment of valve operation and the moment of the next valve operation. The inlet pressure sampling value of the regenerative thermal oxidizer is also read before the current valve operation and after the end of the previous pressure recovery process. If the first valve operation does not have a previous pressure recovery process, the inlet pressure sampling value of the regenerative thermal oxidizer before the first valve operation is read. The minimum value of the read inlet pressure sampling value is taken as the lower bound of the pressure fluctuation before the reversing operation. The maximum value of the sampled value is taken as the upper limit of the pressure fluctuation before switching. The sampling time when the inlet pressure of the regenerative oxidizer is first not lower than the lower limit of the pressure fluctuation before switching and not higher than the upper limit of the pressure fluctuation before switching is taken as the pressure recovery time. If there is no sampling time that meets the conditions after the current regenerative oxidizer switching valve action and before the next regenerative oxidizer switching valve action, the time period between the current regenerative oxidizer switching valve action and the next regenerative oxidizer switching valve action is recorded as the pressure recovery period. If there is a sampling time that meets the conditions, the time period between the current regenerative oxidizer switching valve action and the pressure recovery time is recorded as the pressure recovery period.

[0053] Furthermore, the basic operating data, zeolite adsorption material parameter records, and regenerative thermal oxidation device operating boundary data are correlated according to the sampling time, zeolite rotor angle position, and reversing valve action time of the regenerative thermal oxidation device to generate historical operating data.

[0054] S2. Read historical operating data to form continuous angle records and rotor angle intervals, identify the current desorption area and trace back the previous adsorption period, calculate the amount of adsorption entering, the amount of displaced and discharged, and the actual amount of adsorption retained, divide the desorption temperature range, and generate a record of the actual amount of adsorption retained in the desorption temperature range.

[0055] Based on the sampling time, the historical operating data, including the zeolite rotor angle position, zeolite rotor speed, adsorption zone angle range, and desorption zone angle range, are compiled to form continuous angle records and rotor angle intervals.

[0056] Based on the angle range of the desorption zone, the rotor angle intervals that enter the angle range of the desorption zone are identified in the continuous angle records to determine the current desorption zone. The sampling times when the current desorption zone entered the angle range of the adsorption zone and the sampling times when it left the angle range of the adsorption zone are found in reverse along the rotation direction of the zeolite rotor to generate the preceding adsorption period.

[0057] Furthermore, the zeolite rotor angle position, zeolite rotor speed, adsorption zone angle range, and desorption zone angle range are read from the historical operating data, and the zeolite rotor angle position change process is organized according to the sampling time; when the zeolite rotor angle position crosses the starting angle of one revolution, the angle position is continued according to the zeolite rotor rotation direction to form a continuous angle record.

[0058] Specifically, the rotor angle intervals are divided according to the continuous angle change between two adjacent sampling times. The local rotor region between the zeolite rotor angle positions corresponding to two adjacent sampling times is taken as a rotor angle interval, and the rotor angle intervals are numbered according to the sampling time sequence.

[0059] Furthermore, based on the angle range of the desorption zone, the rotor angle intervals that enter the angle range of the desorption zone are identified in the continuous angle records, and the rotor angle intervals that enter the angle range of the desorption zone are determined as the current desorption region; wherein, the current desorption region is the local angle interval of the zeolite rotor that is currently entering the desorption zone and receiving desorption hot air treatment.

[0060] It should be noted that the current desorption zone is the rotor angle range within the current desorption zone angle range, and the next rotor angle range is the rotor angle range within the desorption zone angle range after the current desorption zone along the rotation direction of the zeolite rotor.

[0061] Furthermore, based on the rotational speed and continuous angle records of the zeolite rotor, the sampling times when the current desorption region entered the angular range of the adsorption zone and when it left the angular range of the adsorption zone are found in reverse along the rotation direction of the zeolite rotor. The sampling time when the region entered the angular range of the adsorption zone is determined as the start time of the previous adsorption period, and the sampling time when the region left the angular range of the adsorption zone is determined as the end time of the previous adsorption period.

[0062] It should be noted that if a complete preceding adsorption period cannot be found in the current desorption region, the actual retained adsorption amount in the current desorption region is not calculated, and the reading continues to the next rotor angle interval; if a complete preceding adsorption period can be found in the current desorption region, the actual retained adsorption amount calculation process begins.

[0063] It should be noted that the preceding adsorption period is the period during which the current desorption zone passes through the adsorption zone and comes into contact with the injected waste gas before entering the desorption zone; by tracing back the preceding adsorption period, it is possible to avoid mistaking the current inlet waste gas state for the current desorption zone adsorption state.

[0064] During the preceding adsorption period, the mass concentrations of the components at the inlet and outlet of the adsorption zone, as well as the air volume processed in the adsorption zone, are retrieved. The amount of adsorption entering, the amount of displaced and discharged, and the actual amount of adsorption retained are calculated to obtain the actual amount of adsorption retained for each component of the injected waste gas.

[0065] Based on the actual retained adsorption amount of each injected waste gas component, the desorption completion temperature of each injected waste gas component, and the temperature deviation of the repeated desorption test under step heating, the desorption temperature ranges are generated by sorting them according to the desorption completion temperature and comparing the desorption completion temperature difference of adjacent injected waste gas components.

[0066] Summarize the actual retained adsorption amount of each injected waste gas component within the same desorption temperature range, determine the actual retained adsorption amount of the desorption temperature range and the corresponding temperature of the desorption temperature range, bind the current desorption area number and the previous adsorption period, and generate a record of the actual retained adsorption amount of the desorption temperature range.

[0067] Furthermore, during the preceding adsorption period, the mass concentration of the component at the inlet of the adsorption zone, the mass concentration of the component at the outlet of the adsorption zone, and the processing air volume of the adsorption zone are read. When the angle range of the adsorption zone corresponds to multiple rotor angle intervals at the same sampling time, the equivalent adsorption zone processing air volume belonging to the current desorption zone is determined according to the angle overlap ratio between the rotor angle interval corresponding to the current desorption zone and the angle range of the adsorption zone during the preceding adsorption period. For each type of injected waste gas component, the amount of adsorption entering, the amount of displacement discharged, and the amount of adsorption actually retained are calculated.

[0068] Specifically, the equivalent adsorption zone processing air volume is the product of the adsorption zone processing air volume and the angle overlap ratio. The angle overlap ratio is the proportion of the overlap angle between the corresponding rotor angle interval of the current desorption zone and the angle range of the adsorption zone to the sum of the overlap angles of each rotor angle interval within the angle range of the adsorption zone.

[0069] Specifically, the amount of adsorption entering, the amount of adsorption displaced, and the actual amount of adsorption retained are expressed as follows: ; ; ; in, Indicates the first Within the first rotation angle interval, the first The amount of each component of the injected waste gas that enters and is adsorbed. Indicates the first Within the first rotation angle interval, the first The amount of displacement and discharge of the various components of the liquid injection waste gas. Indicates the first Within the first rotation angle interval, the first The actual retained adsorption amount of the various components in the injected waste gas. Indicates the range number of the rotor angle. Indicates the component number of the liquid injection exhaust gas. Indicates the first The set of sampling times within the preceding adsorption period corresponding to each rotor angle interval. Indicates the sampling time within the preceding adsorption period. express At the entrance of the adsorption zone at the moment Mass concentration of the components in the injection waste gas. express At the time of adsorption zone outlet Mass concentration of the components in the injection waste gas. Indicates the inlet marker of the adsorption zone. Indicates the outlet marker of the adsorption zone. express Time belongs to the first The equivalent adsorption zone for processing air volume within each rotor angle range. Indicates the time interval between adjacent sampling times. It represents the mathematical constant zero.

[0070] It should be noted that the calculation of the inflow adsorption amount uses the positive difference between the mass concentration of the component at the inlet of the adsorption zone and the mass concentration of the component at the outlet of the adsorption zone as the mass source, representing the mass of the injected waste gas component entering the zeolite adsorption material; the calculation of the displacement discharge amount uses the positive difference between the mass concentration of the component at the outlet of the adsorption zone and the mass concentration of the component at the inlet of the adsorption zone as the mass source, representing the mass of the injected waste gas component discharged due to competitive adsorption; the calculation of the actual retained adsorption amount uses the non-negative value of the inflow adsorption amount minus the displacement discharge amount as the mass result, representing the mass of the component that remains in the current desorption area and needs to be desorbed.

[0071] It should be noted that the units for the mass concentration of the components at the inlet and outlet of the adsorption zone are mass concentrations, while the unit for the air volume treated in the adsorption zone is volumetric flow rate.

[0072] Furthermore, the desorption completion temperature and the temperature deviation of the step-heating desorption test for each component of the injected waste gas in the parameter record of the zeolite adsorption material are read. The components of the injected waste gas with actual retained adsorption amount are sorted from low to high according to the desorption completion temperature to generate the component temperature order.

[0073] Furthermore, the desorption completion temperature difference of adjacent injected waste gas components is compared item by item along the component temperature sequence.

[0074] Specifically, when the temperature difference between adjacent liquid injection waste gas components is not greater than the maximum value of the repeated temperature deviation in the step-heating desorption test corresponding to the adjacent liquid injection waste gas components, the adjacent liquid injection waste gas components are classified into the same desorption temperature range; when the temperature difference between adjacent liquid injection waste gas components is greater than the maximum value of the repeated temperature deviation in the step-heating desorption test corresponding to the adjacent liquid injection waste gas components, a new desorption temperature range is generated starting from the latter type of liquid injection waste gas component.

[0075] It should be noted that the desorption temperature range refers to the set of liquid-injected waste gas components whose desorption completion temperature is within the same test repeatability deviation range; the desorption temperature range is determined by the results of the step-heating desorption test.

[0076] Furthermore, for each desorption temperature range, the actual retained adsorption amount of each injected waste gas component belonging to the same desorption temperature range is summarized to generate the actual retained adsorption amount of the desorption temperature range.

[0077] Specifically, the actual amount of adsorption retained in the desorption temperature range is expressed as: ; in, Indicates the first Within the first rotation angle interval, the first The actual amount of adsorption retained in each desorption temperature range. Indicates the desorption temperature range number. Indicates the first The set of component numbers of the liquid injection exhaust gas corresponding to each desorption temperature range.

[0078] It should be noted that the actual retained adsorption amount in the desorption temperature range is calculated by taking the actual retained adsorption amount of each liquid-injected waste gas component corresponding to the same desorption temperature range as the mass source, and summarizing the mass according to the component number set. Each component in the same desorption temperature range will be treated by the same temperature range in the subsequent desorption temperature process.

[0079] Furthermore, the current desorption zone number, the start time of the previous adsorption period, the end time of the previous adsorption period, the actual retained adsorption amount of each injected waste gas component, the set of injected waste gas components corresponding to each desorption temperature segment, the actual retained adsorption amount of each desorption temperature segment, and the corresponding temperature of each desorption temperature segment are bound together to generate a record of the actual retained adsorption amount of the desorption temperature segment.

[0080] It should be noted that the temperature corresponding to each desorption temperature range is the highest value among the desorption completion temperatures of each liquid-injected waste gas component within the same desorption temperature range.

[0081] S3. Based on the actual adsorption amount records of the desorption temperature range, the zeolite adsorption material parameter records, and the operating boundary data of the regenerative oxidation device, calculate the allowable desorption release amount for each control period, generate candidate desorption temperature processes, call historical operating data to train the desorption release prediction model, screen candidate desorption temperature processes, and output the desorption temperature process of the current desorption region.

[0082] The system reads the actual retained adsorption amount of each injected waste gas component recorded in the actual retained adsorption amount record of each desorption temperature range, the actual retained adsorption amount of each desorption temperature range, the zeolite adsorption material parameter record, the operating boundary data of the regenerative thermal oxidation device, and historical operating data. It calculates the lower heating value per unit mass of the desorbed waste gas, performs combustion chamber temperature boundary calculation, inlet concentrated waste gas mass concentration boundary calculation, and pressure recovery period identification, and generates allowable desorption release amount and pressure recovery period markers for each control period.

[0083] Candidate desorption temperature processes are generated based on the allowable desorption release amount for each control period, the actual retained adsorption amount in the desorption temperature range, the corresponding temperature of the desorption temperature range, the desorption amount per unit time at different desorption temperatures, the upper limit of the material's tolerance temperature, the actual heating rate record in historical operating data, and the residence time of the current desorption region in the desorption zone.

[0084] Furthermore, the actual retained adsorption amount of each injected waste gas component, the actual retained adsorption amount of each desorption temperature segment, and the corresponding temperature of each desorption temperature segment are read from the actual retained adsorption amount record of the desorption temperature segment. The lower heating value per unit mass of each injected waste gas component, the upper limit of the material's tolerance temperature, and the desorption amount per unit time at different desorption temperatures are read from the zeolite adsorption material parameter record. The upper limit of the operating temperature of the combustion chamber of the regenerative oxidizer, the upper limit of the mass concentration of the concentrated waste gas at the inlet of the regenerative oxidizer, and the inlet pressure recovery record of the regenerative oxidizer are read from the operating boundary data of the regenerative oxidizer. The historical record of fuel consumption of the regenerative oxidizer is read from the historical operating data.

[0085] Furthermore, control periods are generated based on the sampling time intervals of historical operating data, and the time interval between two adjacent sampling times is taken as a control period.

[0086] Furthermore, pressure recovery period markers are generated based on the inlet pressure recovery records of the regenerative oxidation device.

[0087] Specifically, each pressure recovery period in the inlet pressure recovery record of the regenerative oxidizer is read. The control period whose start time to end time overlaps with any pressure recovery period is marked as a pressure recovery control period, and the control period that does not overlap with any pressure recovery period is marked as a non-pressure recovery control period. The pressure recovery period marker corresponding to the pressure recovery control period is set to 1, indicating that the control period is within the inlet pressure recovery process of the regenerative oxidizer, and the pressure recovery period marker corresponding to the non-pressure recovery control period is set to 0, indicating that the control period is not within the inlet pressure recovery process of the regenerative oxidizer.

[0088] It should be noted that the allowable desorption release amount, the predicted desorption release amount, and the actual desorption release amount for each control period are all compared based on the mass of organic matter entering the inlet of the regenerative thermal oxidation device. The predicted desorption release amount and the actual desorption release amount for each control period are converted into the mass of organic matter entering the inlet of the regenerative thermal oxidation device based on the mass concentration of components at the outlet of the desorbed waste gas, the desorption air volume, and the gas path connection relationship of the desorbed waste gas entering the inlet of the regenerative thermal oxidation device.

[0089] Furthermore, based on the actual retained adsorption amount of each injected waste gas component and the lower heating value per unit mass of each injected waste gas component, the lower heating value per unit mass of the desorbed waste gas corresponding to the current desorption zone is calculated.

[0090] Specifically, the lower heating value per unit mass of the desorbed waste gas is expressed as: ; in, Indicates the first The lower heating value per unit mass of desorbed waste gas corresponding to each rotor angle range Indicates the first Within each rotor angle range, there exists a set of component numbers for the injected waste gas that actually retains adsorption capacity. Indicates the first The lower heating value per unit mass of the liquid injection waste gas components.

[0091] It should be noted that the lower heating value per unit mass of the desorbed waste gas is calculated based on the difference in the contribution of the actual retained adsorption amount of each injected waste gas component to the heat release of combustion. The numerator is the sum of the lower heating values ​​corresponding to the actual retained adsorption amount of each injected waste gas component, and the denominator is the sum of the actual retained adsorption amounts of each injected waste gas component. When the sum of the actual retained adsorption amounts of each injected waste gas component is zero, the lower heating value per unit mass of the desorbed waste gas is not calculated, and no temperature rise and maintenance process is generated in the current desorption area.

[0092] Furthermore, based on the operating boundary data and historical operating data of the regenerative thermal oxidation unit, the allowable desorption release amount for each control period is calculated.

[0093] Specifically, the low-grade heat of organic matter at the inlet during historical control periods and the combustion chamber temperature rise during historical control periods are extracted from historical stable operation records. The low-grade heat of organic matter at the inlet during historical control periods is then screened according to the combustion chamber temperature margin during the current control period to form the allowable mass of the temperature boundary.

[0094] The lower heating value of organic matter at the inlet during the historical control period is calculated based on the mass of each injected waste gas component entering the inlet of the regenerative thermal oxidizer during the historical control period and the lower heating value per unit mass of each injected waste gas component. The lower heating value of organic matter at the inlet during the historical control period is the sum of the products of the mass of each injected waste gas component and the lower heating value per unit mass of each injected waste gas component. The mass of the components of the injection waste gas is calculated based on the mass concentration of the components at the outlet of the desorbed waste gas, the desorbed air volume, the sampling time interval, and the gas path connection relationship of the desorbed waste gas entering the inlet of the regenerative thermal oxidation device from historical operating data.

[0095] Specifically, the allowable desorption release is expressed as: ; ; ; ; ; in, Indicates the historical control period number. Indicates the inlet mark of the regenerative thermal oxidation unit. Indicates the first Low heat value of organic matter at the inlet during a historical control period Indicates the first The set of component numbers of the liquid-injected waste gas entering the inlet of the regenerative thermal oxidation unit within a historical control period. Indicates the first The first historical control period to enter the inlet of the regenerative thermal oxidation device Mass of components in the injection waste gas Indicates the first Each control period corresponds to a set of historical control period numbers that can be referenced. Indicates the control period number. Indicates the combustion chamber marking of the regenerative oxidation device. Indicates the start time marker. Indicates the end time marker, Indicates the first The temperature of the combustion chamber of the regenerative oxidation unit at the start of each historical control period. Indicates the first The temperature of the combustion chamber of the regenerative oxidation unit at the end of each historical control period. This indicates the upper limit of the operating temperature of the combustion chamber in the regenerative oxidation device. Indicates the first The temperature of the combustion chamber of the regenerative oxidation device during each control period. Indicates the first The allowable mass of the temperature boundary during each control period Indicates the first The allowable mass at the inlet concentration boundary for each control period. This indicates the upper limit of the concentration of the concentrated exhaust gas at the inlet of the regenerative thermal oxidation unit. Indicates the first The mass concentration of concentrated waste gas at the inlet of the regenerative thermal oxidation unit during each control period. Indicates the first The flow rate of concentrated waste gas at the inlet of the regenerative thermal oxidation unit during each control period. Indicates the first Permissible desorption release amount for each control period, This represents an empty set.

[0096] It should be noted that when the set of referenced historical control period numbers is empty or the first... When the lower heating value per unit mass of the desorbed waste gas corresponding to each rotor angle interval is zero, the first... The temperature boundary for the current control period allows for a mass of zero.

[0097] Furthermore, candidate desorption temperature processes are generated based on the actual adsorption amount retained in the desorption temperature range. Specifically, for each desorption temperature range with actual adsorption amount retained, the desorption hot air inlet temperature, calculated from the corresponding inlet and outlet temperature records, is used as the target temperature of the desorption temperature range. The corresponding temperature of the desorption temperature range is the highest value among the desorption completion temperatures of each liquid-injected waste gas component within the same desorption temperature range. When the corresponding temperature of the desorption temperature range is higher than the upper limit of the material's tolerance temperature, the candidate desorption temperature process containing the corresponding desorption temperature range is deleted.

[0098] Furthermore, based on the actual amount of adsorption retained in the desorption temperature range and the amount of desorption per unit time at different desorption temperatures, the holding time of the desorption temperature range is generated.

[0099] The holding time of the desorption temperature range is the ratio of the actual amount of adsorption retained in the desorption temperature range to the amount of desorption per unit time at the corresponding desorption temperature. The amount of desorption per unit time at different desorption temperatures is determined by a stepped heating desorption experiment. The amount of desorption per unit time at different desorption temperatures is calculated proportionally based on the amount of zeolite adsorbent material loaded in the test adsorption unit and the amount of zeolite adsorbent material loaded in the current rotor angle range to generate the amount of desorption per unit time corresponding to the current rotor angle range.

[0100] Furthermore, the actual heating rate records of the same zeolite adsorbent material between adjacent desorption temperature ranges are extracted from historical operating data. The actual heating rate records, the target temperature of the desorption temperature range, and the holding time of the desorption temperature range are combined to generate candidate desorption temperature processes.

[0101] The candidate desorption temperature processes are arranged from low to high according to the temperature corresponding to the desorption temperature segment. After the last desorption temperature segment ends, a desorption hot air cooling process is generated.

[0102] Furthermore, the total execution time of the candidate desorption temperature process is calculated. Specifically, if the total execution time is greater than the residence time of the current desorption region in the desorption zone, the candidate desorption temperature process is deleted; if the total execution time is not greater than the residence time of the current desorption region in the desorption zone, the candidate desorption temperature process is retained. The residence time of the current desorption region in the desorption zone is determined based on the angle range of the desorption zone and the rotation speed of the zeolite rotor.

[0103] By training a desorption release prediction model using historical operating data, the desorption temperature process in the historical operating data is uniformly recorded as the desorption hot air inlet temperature characterization according to the corresponding inlet and outlet temperatures. The candidate desorption temperature process is input into the desorption release prediction model to obtain the predicted desorption release amount, predicted combustion chamber temperature, predicted fuel consumption, and predicted residual adsorption amount for each control period.

[0104] Based on the comparison results of the predicted desorption release amount and the allowable desorption release amount for each control period, the pressure recovery period marker, the predicted combustion chamber temperature for each control period, the upper limit of the combustion chamber operating temperature of the regenerative oxidation device, and the upper limit of the material tolerance temperature, candidate desorption temperature processes are screened, and the current desorption temperature process is output according to the predicted fuel consumption and the predicted residual adsorption amount.

[0105] Furthermore, the desorption and release prediction model is trained. Specifically, the desorption and release prediction model adopts a long short-term memory network and includes an input layer, a single-layer long short-term memory recurrent layer, and an output layer.

[0106] The input layer receives the actual retained adsorption amount at each desorption temperature segment, the target temperature at each desorption temperature segment, the heating rate at each desorption temperature segment, the holding time at each desorption temperature segment, the desorption air volume, the zeolite rotor speed, the inlet temperature of the liquid injection exhaust gas, the inlet humidity of the liquid injection exhaust gas, the inlet temperature of the desorption hot air, the mass concentration of the concentrated exhaust gas at the inlet of the regenerative oxidizer obtained before the start of the candidate desorption temperature process, the combustion chamber temperature of the regenerative oxidizer obtained before the start of the candidate desorption temperature process, the inlet pressure of the regenerative oxidizer obtained before the start of the candidate desorption temperature process, and the pressure recovery period marker; the single-layer long-short-term memory cycle layer extracts the temporal relationship between the desorption temperature change and the desorption release change according to the control period sequence; the output layer outputs the predicted desorption release amount, the predicted combustion chamber temperature, the predicted fuel consumption, and the predicted residual adsorption amount for each control period.

[0107] Furthermore, training samples are generated based on historical operating data. Specifically, the preceding adsorption periods of the historical desorption area are traced back to calculate the actual retained adsorption amount and the actual retained adsorption amount of the historical desorption temperature range. Based on the historical desorption hot air outlet temperature change process and corresponding inlet and outlet temperature records, a historical desorption temperature process characterized by the desorption hot air inlet temperature is generated. Based on the historical desorption exhaust gas outlet component mass concentration and desorption air volume, the historical desorption release amount for each control period is generated. Based on the historical actual retained adsorption amount and the historical desorption release amount for each control period, the historical residual adsorption amount after the historical desorption process is calculated. The historical desorption release amount for each control period, the historical combustion chamber temperature of the regenerative thermal oxidizer, the historical fuel consumption of the regenerative thermal oxidizer, and the historical residual adsorption amount are used as training labels.

[0108] Furthermore, according to the same control period, the historical inlet pressure recovery records of the regenerative thermal oxidizer are converted into historical pressure recovery period markers. The historical pressure recovery period markers, along with the historical desorption temperature process, historical actual retained adsorption amount, historical actual retained adsorption amount of the desorption temperature range, historical desorption air volume, historical zeolite rotor speed, historical liquid injection exhaust gas inlet temperature, historical liquid injection exhaust gas inlet humidity, historical desorption hot air inlet temperature, historical regenerative thermal oxidizer inlet concentrated exhaust gas mass concentration before the start of the historical desorption process, historical regenerative thermal oxidizer combustion chamber temperature before the start of the historical desorption process, and historical regenerative thermal oxidizer inlet pressure before the start of the historical desorption process, are used as training inputs.

[0109] Furthermore, the most recent complete rotor operation cycle is used as the verification data in chronological order, and the historical operation data earlier than the verification data is used as the training data. The complete rotor operation cycle is the range of operation time formed by the zeolite rotor continuously rotating from the starting angle of one revolution and returning to the same starting angle of the same revolution. The most recent complete rotor operation cycle is the complete rotor operation cycle at the end of the historical operation data time sequence that has complete angle records, complete desorption feedback data, and complete regenerative oxidation device feedback data.

[0110] The most recent complete rotor operation cycle is used as the validation data, ensuring that the training data precedes the validation data to avoid consecutive control periods within the same complete rotor operation cycle entering both the training and validation data simultaneously. The desorption release prediction model is trained using the training data. After each full traversal of the training data, the mean absolute error of desorption release, mean absolute error of combustion chamber temperature, mean absolute error of fuel consumption, and mean absolute error of residual adsorption are calculated for each control period of the validation data. Each type of mean absolute error is divided by the difference between the maximum and minimum values ​​of the corresponding validation label to generate the normalized mean absolute error of desorption release, normalized mean absolute error of combustion chamber temperature, normalized mean absolute error of fuel consumption, and normalized mean absolute error of residual adsorption for each control period.

[0111] In this embodiment, the input sequence of the desorption release prediction model is arranged according to the control period, and each control period corresponds to an input time step. For any input time step, the input features include the target temperature of the desorption temperature range corresponding to the control period, the heating rate, the holding time, the desorption air volume, the zeolite rotor speed, the inlet temperature of the liquid injection exhaust gas, the inlet humidity of the liquid injection exhaust gas, the inlet temperature of the desorption hot air, the mass concentration of the concentrated exhaust gas at the inlet of the regenerative thermal oxidation device, the combustion chamber temperature of the regenerative thermal oxidation device, the inlet pressure of the regenerative thermal oxidation device, and the pressure recovery period marker.

[0112] When a candidate desorption temperature process includes multiple desorption temperature segments, each desorption temperature segment is sequentially expanded to its corresponding control time period in order of increasing temperature. Each control time period corresponds to only one target temperature, heating rate, and holding time for a desorption temperature segment.

[0113] Continuous input variables are normalized to the 0-1 range according to the maximum and minimum values ​​in the training data, and the pressure recovery period markers retain their original values. The number of hidden units in a single-layer long short-term memory recurrent layer is 32. The output layer includes desorption release sequence output, combustion chamber temperature sequence output, fuel consumption output, and residual adsorption output. During training, the sum of the normalized average absolute errors corresponding to desorption release, combustion chamber temperature, fuel consumption, and residual adsorption is used as the loss function. An adaptive moment estimation optimization algorithm is used for training, with a batch size of 16 and a maximum number of training rounds of 100.

[0114] It should be noted that when the maximum value of the corresponding validation label is equal to the minimum value of the corresponding validation label, the corresponding normalized mean absolute error is not included in the validation error comparison; the maximum value of the normalized mean absolute error included in the validation error comparison is taken as the validation error after the full traversal of the current training data; when the maximum values ​​of all four validation labels are equal to the minimum values ​​of the corresponding validation labels, training is stopped, and the model parameters obtained after the first full traversal of the training data are retained; the validation error comparison is performed starting from the second full traversal of the training data; when the validation error after the full traversal of the current training data is not lower than the validation error after the previous full traversal of the training data, training is stopped, and the model parameters obtained after the previous full traversal of the training data are retained.

[0115] Furthermore, the candidate desorption temperature process and the operating status data obtained before the start of the candidate desorption temperature process are input into the trained desorption release prediction model to obtain the predicted desorption release amount, predicted combustion chamber temperature, predicted fuel consumption, and predicted residual adsorption amount for each control period. Based on the predicted desorption release amount for each control period, the predicted peak time of desorption release is determined.

[0116] Furthermore, when inputting the candidate desorption temperature process into the trained desorption release prediction model, the pressure recovery period marker is simultaneously input according to the control period corresponding to the candidate desorption temperature process. The desorption air volume, zeolite rotor speed, liquid injection exhaust gas inlet temperature, liquid injection exhaust gas inlet humidity, regenerative oxidation device inlet concentrated exhaust gas mass concentration, regenerative oxidation device combustion chamber temperature, and regenerative oxidation device inlet pressure are also simultaneously input before the candidate desorption temperature process begins.

[0117] Among them, the operating status data corresponding to the control period before the candidate desorption temperature process has not been executed is determined by the most recent valid sampled value or historical similar operating condition record before the start of the candidate desorption temperature process, so that the desorption release prediction model can identify the inlet pressure recovery state after the regenerative oxidation device is reversed when predicting the desorption release amount and the combustion chamber temperature in each control period.

[0118] Furthermore, the candidate desorption temperature process is screened. Specifically, the candidate desorption temperature process whose predicted desorption release amount is greater than the allowable desorption release amount in any control period is deleted; the candidate desorption temperature process whose predicted peak desorption release time falls within the pressure recovery period corresponding to the inlet pressure recovery record of the regenerative oxidation device is deleted; the candidate desorption temperature process whose predicted combustion chamber temperature in any control period is higher than the upper limit of the combustion chamber operating temperature of the regenerative oxidation device is deleted; and the candidate desorption temperature process whose target temperature is higher than the upper limit of the material's tolerance temperature is deleted.

[0119] Furthermore, among the remaining candidate desorption temperatures, the candidate desorption temperature process with the lowest predicted fuel consumption is selected as the current desorption temperature process in the desorption region, arranged from lowest to highest according to the predicted fuel consumption. When the predicted fuel consumption is the same, the candidate desorption temperature process with the lowest predicted residual adsorption is selected. When the predicted residual adsorption is the same, the candidate desorption temperature process with the shortest total execution time is selected.

[0120] Furthermore, the desorption temperature process of the current desorption region is output; the current desorption temperature process includes the target temperature of each desorption temperature segment, the heating rate of each desorption temperature segment, the holding time of each desorption temperature segment, the start time of desorption hot air cooling, and the end time of desorption hot air cooling.

[0121] S4. Perform desorption hot air heating, holding and cooling according to the current desorption temperature process in the desorption area, collect desorption feedback data and heat storage oxidation device feedback data, correct the holding time of the desorption temperature segment in the next rotor angle range, write back historical operation data, update model training data, and generate closed-loop correction results.

[0122] Read the current desorption temperature process and pressure recovery period markers in the desorption area, execute the desorption hot air heating, holding and cooling, collect desorption feedback data and regenerative oxidation device feedback data, and generate the current desorption area execution feedback record.

[0123] Furthermore, the current desorption temperature process in the desorption area is read, and the desorption hot air heating process and the desorption hot air holding process are executed sequentially according to the order of the corresponding temperatures of the desorption temperature segments from low to high. After the holding process of all desorption temperature segments is completed, the desorption hot air cooling process is executed according to the start time and end time of the desorption hot air cooling.

[0124] Specifically, during the desorption hot air heating process, the inlet temperature of the desorption hot air is adjusted according to the heating rate of the desorption temperature range to raise the inlet temperature of the desorption hot air to the target temperature of the desorption temperature range; during the desorption hot air holding process, the inlet temperature of the desorption hot air is maintained at the target temperature of the desorption temperature range for a duration equal to the holding time of the desorption temperature range; during the desorption hot air cooling process, the inlet temperature of the desorption hot air is reduced so that the current desorption area completes cooling before leaving the desorption zone.

[0125] During the current desorption temperature process, the pressure recovery period marker is read. If the execution time is within the pressure recovery control period and the desorption hot air inlet temperature has not yet reached the target temperature of the desorption temperature segment, the desorption hot air heating action is paused. After the pressure recovery control period ends, the remaining heating action continues. Pausing the desorption hot air heating action does not change the target temperature of the desorption temperature segment or the holding time of the desorption temperature segment.

[0126] Furthermore, desorption feedback data and regenerative thermal oxidation device feedback data are collected according to the control period.

[0127] The desorption feedback data includes the mass concentration of components at the desorbed exhaust gas outlet and the desorption air volume; the regenerative thermal oxidation device feedback data includes the mass concentration of concentrated exhaust gas at the inlet of the regenerative thermal oxidation device, the flow rate of concentrated exhaust gas at the inlet of the regenerative thermal oxidation device, the combustion chamber temperature of the regenerative thermal oxidation device, the inlet pressure of the regenerative thermal oxidation device, the mass concentration of volatile organic compounds at the outlet of the regenerative thermal oxidation device, and the fuel consumption of the regenerative thermal oxidation device; the desorption feedback data and the regenerative thermal oxidation device feedback data are bound according to the control period to generate the current desorption area execution feedback record.

[0128] For the current desorption zone, the actual desorption amount and residual adsorption amount are calculated based on the feedback record. When the angle range of the desorption zone corresponds to multiple rotor angle intervals in the same control period, the equivalent actual desorption amount belonging to the current desorption zone is determined according to the angle overlap ratio between the rotor angle interval corresponding to the current desorption zone and the angle range of the desorption zone. Combined with the actual retained adsorption amount of each injected waste gas component, the actual desorption amount and residual adsorption amount of each injected waste gas component are calculated. The residual ratio of the desorption temperature range is summarized to generate the residual accounting record of the current desorption zone.

[0129] Based on the current residual accounting records of the desorption zone, the holding time of the desorption temperature segment in the next rotor angle range is corrected. Based on the actual desorption release amount, the actual peak time of desorption release, the allowable desorption release amount for each control period, the pressure recovery period marker, the mass concentration of volatile organic compounds at the outlet of the regenerative oxidizer, and the permissible mass concentration at the outlet of the regenerative oxidizer in the current desorption zone execution feedback record, the release amount exceeding the limit, the peak conflict, and the emission compliance are judged, and an operation feedback judgment record is generated.

[0130] Furthermore, based on the current desorption zone execution feedback records, the actual desorption amount and residual adsorption amount of each injected waste gas component are calculated and expressed as follows: ; ; in, Indicates the first Within the first rotation angle interval, the first Actual desorption amount of each component in the injected waste gas. Indicates the first Within the first rotation angle interval, the first The residual adsorption amount of the various components in the injected waste gas. Indicates the first The set of decoupling execution control time period numbers corresponding to each rotor angle range. Indicates the outlet marking of the desorbed exhaust gas. Indicates the first During the control period, the desorbed waste gas outlet... Mass concentration of the components in the injection waste gas. Indicates the first Desorption air volume within a control period.

[0131] Furthermore, based on the composition set of the injected waste gas corresponding to the desorption temperature range, the residual ratio of the desorption temperature range is calculated.

[0132] Specifically, the residual proportion in the desorption temperature range is expressed as follows: ; in, Indicates the first Within the first rotation angle interval, the first The residual percentage in each desorption temperature range.

[0133] It should be noted that when the actual amount of adsorption retained in the desorption temperature range is zero, the residual ratio in the desorption temperature range is not calculated.

[0134] Furthermore, based on the residual proportion in the desorption temperature range, the holding time of the desorption temperature range in the next rotor angle interval is adjusted, as follows: ; in, Indicates the first Within the first rotation angle interval, the first The holding time for each desorption temperature range Indicates the first Within the first rotation angle interval, the first Each desorption temperature range has an upper limit on the holding time. Indicates the first Within the first rotation angle interval, the first The holding time of each desorption temperature range.

[0135] The upper limit of the holding time for the desorption temperature range is obtained by subtracting the heating time and cooling time from the residence time of the next rotor angle range in the desorption zone.

[0136] Furthermore, based on the current desorption area execution feedback record, an operation feedback judgment record is generated.

[0137] Specifically, when the actual desorption release exceeds the allowable desorption release during the same control period, the corresponding control period is recorded as the release exceeding the limit control period; when the peak moment of the actual desorption release falls into the pressure recovery control period, the corresponding pressure recovery control period is recorded as the peak conflict control period; when the volatile organic compound mass concentration at the outlet of the regenerative oxidant device is higher than the allowable mass concentration at the outlet of the regenerative oxidant device, the actual desorption release distribution corresponding to the current desorption area is recorded as an unusable release distribution; the release exceeding the limit control period, the peak conflict control period, the unusable release distribution, and the emission compliance status are linked to generate an operation feedback judgment record.

[0138] Based on the holding time of the desorption temperature range in the next rotor angle interval and the operation feedback judgment record, the historical operation data is written back, the model training data is updated, and the closed-loop correction result is generated.

[0139] Furthermore, the current desorption temperature process in the desorption region, the current desorption region execution feedback record, the actual desorption amount, the residual adsorption amount, the residual ratio of the desorption temperature segment, the holding time of the desorption temperature segment in the next rotor angle range, and the operation feedback judgment record are written into the historical operation data; the current desorption temperature process in the desorption region, the actual retained adsorption amount in the current desorption region, the actual retained adsorption amount in the desorption temperature segment, the pressure recovery period marker, and the current desorption region execution feedback record are bound as new model training data to generate closed-loop correction results.

[0140] Furthermore, the beneficial effects of the present invention were verified through simulation experiments. Specifically, the detection environment was selected as the scenario of liquid injection waste gas treatment in a power battery liquid injection workshop, and the detection object was the combined treatment process of zeolite rotor adsorption concentration and regenerative oxidation device.

[0141] The zeolite rotor is divided into an adsorption zone, a desorption zone, and a cooling zone. The adsorption zone receives the liquid injection waste gas, the desorption zone receives the desorption hot air, and the desorption waste gas enters the inlet of the regenerative thermal oxidation device, which completes the oxidation treatment of organic matter.

[0142] The experimental materials included records of the mass concentration of the injected waste gas components, the air volume of the adsorption zone, the angle and position of the zeolite rotor, the rotational speed of the zeolite rotor, the outlet temperature of the desorption hot air, the mass concentration of the desorbed waste gas components at the outlet, the desorption air volume, the mass concentration of the concentrated waste gas at the inlet of the regenerative thermal oxidation device, the inlet pressure of the regenerative thermal oxidation device, the combustion chamber temperature of the regenerative thermal oxidation device, the mass concentration of volatile organic compounds at the outlet of the regenerative thermal oxidation device, the parameter records of the zeolite adsorption material, and the operating boundary data of the regenerative thermal oxidation device.

[0143] Specifically, the experiment ran continuously for 18 complete rotor cycles, each cycle lasting 200 seconds. The experiment was divided into 180 control periods with a 20-second sampling interval. Based on the zeolite rotor angle position, rotor speed, and desorption zone angle range, rotor angle intervals entering the desorption zone angle range were identified within the 180 control periods, generating 24 current desorption zones. The following data were recorded: adsorption amount entering the zone, displacement amount discharged, actual retained adsorption amount, actual retained adsorption amount at the desorption temperature range, allowable desorption release amount at each control period, actual desorption release amount, residual adsorption amount, and residual proportion at the desorption temperature range.

[0144] Figure 5 To create a comparison chart of desorption release amounts, the simulation experiment generated 180 control periods with a 20-second sampling interval. Based on the upper limit of the combustion chamber operating temperature of the regenerative thermal oxidizer, the upper limit of the mass concentration of the concentrated exhaust gas at the inlet of the regenerative thermal oxidizer, the pressure recovery record at the inlet of the regenerative thermal oxidizer, and historical operating data, the allowable desorption release amount for each control period was calculated segment by segment, and the pressure recovery control periods were distinguished according to the pressure recovery period marking.

[0145] In the conventional method, desorption is performed according to a fixed desorption hot air temperature, a fixed holding time, and a fixed cooling process. It does not read the actual retained adsorption amount corresponding to the current desorption area at the desorption temperature range, nor does it select the desorption temperature process based on the allowable desorption release amount for each control period. In this embodiment, the current desorption area is identified, the previous adsorption period is traced back, the amount of adsorption entering, the amount of adsorption being replaced and discharged, and the actual retained adsorption amount are calculated, a record of the actual retained adsorption amount for the desorption temperature range is generated, candidate desorption temperature processes are selected based on the allowable desorption release amount for each control period, and the desorption temperature process for the current desorption area is output.

[0146] Figure 5 The three curves represent the allowable desorption release amount for each control period, the actual desorption release amount under conventional methods, and the actual desorption release amount in this embodiment, respectively. The experimental results show that the release amount under conventional methods exceeded the limit 170 times, while the release amount in this embodiment exceeded the limit 0 times. This indicates that this embodiment can constrain the release process corresponding to the heating, holding, and cooling of the desorption hot air, and achieve a stable desorption release process.

[0147] Figure 6 The diagram shows a comparison of the combustion chamber temperatures of the regenerative thermal oxidation device. The simulation experiment synchronously recorded the combustion chamber temperatures of the conventional regenerative thermal oxidation device, the combustion chamber temperatures of the regenerative thermal oxidation device in this embodiment, and the upper limit of the operating temperature of the combustion chamber of the regenerative thermal oxidation device during 180 control periods.

[0148] In the conventional method, a fixed desorption hot air temperature and a fixed holding time are used in each current desorption zone. The actual desorption release amount is concentrated into the inlet of the regenerative oxidation device as the adsorption load changes, and the combustion chamber temperature fluctuates with the change in the mass of organic matter at the inlet.

[0149] This embodiment divides the desorption temperature range according to the actual retained adsorption amount in the current desorption region. It combines the zeolite adsorption material parameter records, the operating boundary data of the regenerative oxidation device, and the pressure recovery period marking to screen candidate desorption temperatures. This ensures that the predicted desorption release amount for each control period does not exceed the allowable desorption release amount for each control period, and that the predicted combustion chamber temperature for each control period does not exceed the upper limit of the combustion chamber operating temperature of the regenerative oxidation device.

[0150] Figure 6 The three curves represent the combustion chamber temperature of the conventional regenerative oxidizer, the combustion chamber temperature of the regenerative oxidizer in this embodiment, and the upper limit of the combustion chamber operating temperature of the regenerative oxidizer, respectively. The experimental results show that the peak combustion chamber temperature of the conventional regenerative oxidizer is 798.28℃, while the peak combustion chamber temperature of the regenerative oxidizer in this embodiment is 778.12℃. This indicates that this embodiment can reduce the combustion chamber temperature shock and improve the reliability of the desorption temperature process under the operating boundary constraints of the regenerative oxidizer.

[0151] In summary, this invention identifies the current desorption region and traces back to the previous adsorption period, calculating the amount of adsorption entering, the amount of adsorption being replaced and discharged, and the actual amount of adsorption remaining, thus forming a record of the actual amount of adsorption remaining in the desorption temperature range. This provides a quantifiable control basis for determining the desorption temperature process in the current desorption region. By calculating the allowable desorption release amount for each control period, candidate desorption temperature processes are generated and screened. This ensures that the heating, holding, and cooling of the desorption hot air are constrained by the zeolite adsorption material parameter records and the operating boundary data of the regenerative oxidation device, achieving a stable desorption release process, reducing residual adsorption, and improving the pertinence and reliability of the closed-loop correction results.

[0152] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A method for controlling the desorption temperature process of a zeolite rotor for treating liquid-injected waste gas, characterized in that, include: Collect and bind the operating data of the adsorption zone, desorption zone and regenerative thermal oxidation device to generate basic operating data, screen historical stable operating records, and perform mixed liquid injection waste gas breakthrough test, step temperature rise desorption test and cyclic desorption test on candidate zeolite adsorption materials to generate zeolite adsorption material parameter records, regenerative thermal oxidation device operating boundary data and historical operating data. Read historical operating data to form continuous angle records and rotor angle intervals, identify the current desorption area and trace back the previous adsorption period, calculate the amount of adsorption entering, the amount of displaced and discharged and the actual amount of adsorption retained, divide the desorption temperature range, and generate a record of the actual amount of adsorption retained in the desorption temperature range. Based on the actual adsorption amount records of the desorption temperature range, the zeolite adsorption material parameter records, and the operating boundary data of the regenerative oxidation device, the allowable desorption release amount for each control period is calculated, candidate desorption temperature processes are generated, historical operating data is called to train the desorption release prediction model, candidate desorption temperature processes are screened, and the desorption temperature process of the current desorption region is output. According to the current desorption temperature process in the desorption area, the desorption hot air is heated, maintained, and cooled. Desorption feedback data and thermal regenerative oxidation device feedback data are collected. The holding time of the desorption temperature segment in the next rotor angle range is corrected. Historical operation data is written back, model training data is updated, and closed-loop correction results are generated. The process of identifying the current desorption region and tracing back to the previous adsorption period includes: Based on the sampling time, the historical operating data of zeolite rotor angle position, zeolite rotor speed, adsorption zone angle range and desorption zone angle range are organized to form continuous angle records and rotor angle intervals. Based on the angle range of the desorption zone, identify the rotor angle intervals that enter the angle range of the desorption zone in the continuous angle records, determine the current desorption zone, and search in reverse along the rotation direction of the zeolite rotor for the sampling times when the current desorption zone entered the angle range of the adsorption zone and the sampling times when it left the angle range of the adsorption zone, thus generating the previous adsorption period. The process of dividing the desorption temperature range and generating a record of the actual retained adsorption amount within each desorption temperature range includes: During the preceding adsorption period, retrieve the inlet component mass concentration, outlet component mass concentration, and adsorption zone treatment air volume of the adsorption zone, calculate the amount of adsorption entering, the amount of displaced and discharged, and the actual amount of adsorption retained, and obtain the actual amount of adsorption retained for each liquid-injected waste gas component. Based on the actual retained adsorption amount of each injected waste gas component, the desorption completion temperature of each injected waste gas component, and the temperature deviation of the repeated desorption test of the step heating, the desorption completion temperature is sorted according to the desorption completion temperature and the desorption completion temperature difference of adjacent injected waste gas components is compared to generate the desorption temperature range. Summarize the actual retained adsorption amount of each injected waste gas component within the same desorption temperature range, determine the actual retained adsorption amount of the desorption temperature range and the corresponding temperature of the desorption temperature range, bind the current desorption area number and the previous adsorption period, and generate a record of the actual retained adsorption amount of the desorption temperature range.

2. The method for controlling the desorption temperature process of a zeolite rotor for treating liquid-injected waste gas as described in claim 1, characterized in that, The generation of basic operational data, including the filtering of historical stable operational records, includes: Collect and bind the operating data of the adsorption zone, desorption zone, and regenerative thermal oxidation device to generate basic operating data. Read the permitted mass concentration at the outlet of the regenerative thermal oxidation device. Based on the basic operating data and the permitted mass concentration at the outlet of the regenerative thermal oxidation device, filter the operating segments and generate historical stable operating records.

3. The method for controlling the desorption temperature process of a zeolite rotor for treating liquid injection waste gas as described in claim 1 or 2, characterized in that, The parameters of the generated zeolite adsorbent material, the operating boundary data of the regenerative oxidation device, and the historical operating data include: Based on basic operating data, mixed liquid injection waste gas samples were prepared, and mixed liquid injection waste gas breakthrough test, step temperature rise desorption test and cyclic desorption test were performed on candidate zeolite adsorption materials to obtain the amount of adsorption entering, the amount of displacement discharged, the desorption heating power, the desorption duration, the desorption completion temperature, the amount of desorption per unit time, the upper limit of the material's tolerance temperature and the amount of cyclic adsorption capacity retained. By calculating the unit desorption energy consumption based on the adsorption capacity, displacement discharge capacity, desorption heating power, and desorption duration, the zeolite adsorption material is determined. The desorption completion temperature, desorption capacity per unit time, upper limit of material tolerance temperature, unit desorption energy consumption, and cyclic adsorption capacity retention are compiled to generate zeolite adsorption material parameter records. Based on historical stable operation records, the operating boundary data of the regenerative oxidation device is generated. By linking the basic operating data, zeolite adsorption material parameter records, and regenerative oxidation device operating boundary data, historical operating data is generated.

4. The method for controlling the desorption temperature process of a zeolite rotor for treating liquid injection waste gas as described in claim 1, characterized in that, The calculation of the allowable desorption release amount per control period includes: The system reads the actual retained adsorption amount of each injected waste gas component recorded in the actual retained adsorption amount record of each desorption temperature range, the actual retained adsorption amount of each desorption temperature range, the zeolite adsorption material parameter record, the operating boundary data of the regenerative thermal oxidation device, and historical operating data. It calculates the lower heating value per unit mass of the desorbed waste gas, performs combustion chamber temperature boundary calculation, inlet concentrated waste gas mass concentration boundary calculation, and pressure recovery period identification, and generates allowable desorption release amount and pressure recovery period markers for each control period.

5. The method for controlling the desorption temperature process of a zeolite rotor for treating liquid-injected waste gas as described in claim 4, characterized in that, The process of generating candidate desorption temperatures, which involves training a desorption release prediction model using historical operational data, includes: Candidate desorption temperature processes are generated based on the allowable desorption release amount for each control period, the actual retained adsorption amount in the desorption temperature range, the corresponding temperature of the desorption temperature range, the desorption amount per unit time at different desorption temperatures, the upper limit of the material's tolerance temperature, the actual heating rate record in historical operating data, and the residence time of the current desorption region in the desorption zone. By training a desorption release prediction model using historical operating data, the desorption temperature process in the historical operating data is uniformly recorded as the desorption hot air inlet temperature characterization according to the corresponding inlet and outlet temperatures. The candidate desorption temperature process is input into the desorption release prediction model to obtain the predicted desorption release amount, predicted combustion chamber temperature, predicted fuel consumption, and predicted residual adsorption amount for each control period.

6. The method for controlling the desorption temperature process of a zeolite rotor for treating liquid injection waste gas as described in claim 1, characterized in that, The process of screening candidate desorption temperatures and outputting the current desorption temperature of the desorption region includes: Based on the comparison results of the predicted desorption release amount and the allowable desorption release amount for each control period, the pressure recovery period marker, the predicted combustion chamber temperature for each control period, the upper limit of the combustion chamber operating temperature of the regenerative oxidation device, and the upper limit of the material tolerance temperature, candidate desorption temperature processes are screened, and the current desorption temperature process is output according to the predicted fuel consumption and the predicted residual adsorption amount.

7. The method for controlling the desorption temperature process of a zeolite rotor for treating liquid-injected waste gas as described in claim 1, characterized in that, The process of heating, maintaining, and cooling the desorption hot air according to the current desorption temperature in the desorption area includes: Read the current desorption temperature process and pressure recovery period markers in the desorption area, execute the desorption hot air heating, holding and cooling, collect desorption feedback data and thermal regenerative oxidation device feedback data, and generate the current desorption area execution feedback record; For the current desorption zone, the actual desorption amount and residual adsorption amount are calculated based on the feedback record. When the angle range of the desorption zone corresponds to multiple rotor angle intervals in the same control period, the equivalent actual desorption amount belonging to the current desorption zone is determined according to the angle overlap ratio between the rotor angle interval corresponding to the current desorption zone and the angle range of the desorption zone. Combined with the actual retained adsorption amount of each injected waste gas component, the actual desorption amount and residual adsorption amount of each injected waste gas component are calculated. The residual ratio of the desorption temperature range is summarized to generate the residual accounting record of the current desorption zone.

8. The method for controlling the desorption temperature process of a zeolite rotor for treating liquid injection waste gas as described in claim 7, characterized in that, The process of correcting the desorption temperature range holding time in the next rotor angle interval, writing back historical operating data, and updating model training data includes: Based on the current residual accounting records of the desorption zone, the holding time of the desorption temperature segment in the next rotor angle range is corrected. Based on the actual desorption release amount, the actual peak time of desorption release, the allowable desorption release amount for each control period, the pressure recovery period marker, the mass concentration of volatile organic compounds at the outlet of the regenerative oxidizer, and the permissible mass concentration at the outlet of the regenerative oxidizer in the current desorption zone execution feedback record, the release amount exceeding the limit, the peak conflict, and the emission compliance are judged, and an operation feedback judgment record is generated. Based on the holding time of the desorption temperature range in the next rotor angle interval and the operation feedback judgment record, the historical operation data is written back, the model training data is updated, and the closed-loop correction result is generated.

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