Method and device for analyzing reaction performance attenuation characteristics of SCR (Selective Catalytic Reduction) denitration catalyst

Abstract

The invention relates to an analysis method and an analysis device for the reaction performance degradation characteristic of an SCR (Selective Catalytic Reduction) denitration catalyst, and the method comprises the following steps: deducing and concluding based on the removal efficiency of NO to generate a denitration catalyst reaction performance degradation principle general formula; based on a denitration catalyst reaction performance attenuation principle general formula, analyzing denitration catalyst reaction performance attenuation characteristics including a single time node, double time nodes and multiple time nodes; and determining the residual life of the catalyst according to the reaction performance attenuation characteristics of the denitration catalyst, and generating a reaction performance attenuation curve of the denitration catalyst. Therefore, the problems that quantitative analysis under different working conditions lacks a unified basis and is difficult to adapt to complex scenes of single, double or multiple time nodes and prediction results lacks an imaging attenuation curve due to the fact that catalyst performance detection lacks a unified attenuation principle general formula and a multi-node analysis method in related technologies are solved. And the attenuation trend of the denitration efficiency or potential cannot be visually displayed.

Description

Technical Field

[0001] This application relates to the field of atmospheric environmental protection technology, and in particular to a method and apparatus for analyzing the reaction performance degradation characteristics of SCR denitrification catalysts. Background Technology

[0002] With increasingly stringent environmental regulations, coal-fired power plants and other industrial facilities widely adopt SCR (Selective Catalytic Reduction) denitrification technology to achieve nitrogen oxide emission standards. However, the core component, the denitrification catalyst, undergoes irreversible degradation of its reactivity during long-term operation due to the physicochemical effects of dust, alkali metals, arsenic, and other substances in the flue gas. This leads to decreased denitrification efficiency and increased ammonia escape, directly impacting the stable operation of the facility and environmental compliance. Therefore, in-depth research into the degradation mechanism and patterns of catalyst performance, and the establishment of accurate lifetime prediction models, are crucial for scientifically formulating catalyst replacement strategies, reducing operation and maintenance costs, and ensuring the long-term efficient operation of emission reduction facilities. This provides important technical support for achieving a win-win situation for both environmental protection and economic efficiency.

[0003] In related technologies, for the analysis of catalyst performance degradation characteristics and lifetime prediction, a mechanism analysis model based on specific deactivation factors is adopted. The deactivation function is derived by quantifying the relationship between the amount of a single poison deposition and activity degradation. At the same time, combined with activity monitoring data at finite time points, curve fitting, simple statistical analysis or basic machine learning algorithms are used to establish a correlation model between activity degradation and operating time. In terms of remaining lifetime determination, it is based on empirical activity thresholds or simple degradation rates, and the activity change data is presented in numerical table form to help determine the catalyst state.

[0004] However, in related technologies, the lack of a unified general formula for the decay principle and multi-node analysis method for catalyst performance testing leads to a lack of unified basis for quantitative analysis under different operating conditions. This makes it difficult to adapt to complex scenarios with single, double, or multiple time nodes. Furthermore, the determination of remaining lifespan is not effectively combined with the denitrification efficiency limit of the SCR system design, making it difficult to accurately output specific lifespan duration and targeted management suggestions. The prediction results are mostly presented in numerical form, lacking graphical decay curves, and cannot intuitively show the decay trend of denitrification efficiency or potential, increasing operation and maintenance costs. This situation urgently needs improvement. Summary of the Invention

[0005] This application provides a method and apparatus for analyzing the degradation characteristics of SCR denitrification catalyst reaction performance, in order to solve the problems in related technologies, such as the lack of a unified general formula for degradation principle and multi-node analysis method for catalyst performance detection, which leads to a lack of unified basis for quantitative analysis under different operating conditions, making it difficult to adapt to complex scenarios with single, double or multiple time nodes, and the lack of graphical degradation curves in the prediction results, which cannot intuitively show the degradation trend of denitrification efficiency or potential.

[0006] The first aspect of this application provides a method for analyzing the degradation characteristics of SCR denitrification catalyst reaction performance, comprising the following steps: deriving and summarizing a general formula for the degradation principle of denitrification catalyst reaction performance based on the NO removal efficiency; analyzing the degradation characteristics of denitrification catalyst reaction performance at single time nodes, dual time nodes, and multiple time nodes based on the general formula for the degradation principle of denitrification catalyst reaction performance; determining the remaining lifetime of the catalyst based on the degradation characteristics of the denitrification catalyst reaction performance, and generating a degradation curve of the denitrification catalyst reaction performance.

[0007] Through the aforementioned technical means, the embodiments of this application can derive and summarize a general formula for the degradation principle of denitrification catalyst reaction performance. This formula can analyze the degradation characteristics of denitrification catalyst reaction performance under single, dual, and multiple time nodes, predict the remaining lifetime of the catalyst, and generate degradation curves of denitrification catalyst reaction performance. This provides a clear theoretical model for the quantitative analysis and prediction of catalyst degradation characteristics, covering analysis modes of single, dual, and multiple time nodes. It can flexibly adapt to complex scenarios with different monitoring conditions. Combined with the determination of remaining lifetime of degradation characteristics and the generation of degradation curves, it improves the engineering practicality of the prediction results. This has significant meaning and value for supporting and guiding users in the high-quality operation and management of SCR denitrification catalysts.

[0008] Optionally, in one embodiment of this application, the step of analyzing the denitrification catalyst reaction performance decay characteristics based on the general formula of the denitrification catalyst reaction performance decay principle includes: in the single time node mode, obtaining the ammonia-nitrogen molar ratio, the overall series denitrification efficiency under excess ammonia, the overall series denitrification efficiency under the ammonia-nitrogen molar ratio, and the length of time the catalyst has been running at the current node, in order to calculate the deactivation degree parameter and determine the catalyst performance decay formula.

[0009] Through the above-mentioned technical means, the embodiments of this application can obtain key parameters such as ammonia-nitrogen molar ratio, excess ammonia and denitrification efficiency under normal operating conditions in a single time node mode, accurately calculate the deactivation degree parameters, establish a catalyst performance decay formula, effectively solve the problem of not being able to make effective predictions when data is scarce, and significantly improve the practicality and applicability of the method.

[0010] Optionally, in one embodiment of this application, determining the remaining lifetime of the catalyst based on the degradation characteristics of the denitrification catalyst reaction performance includes: obtaining a denitrification efficiency limit; and obtaining the remaining lifetime of the catalyst based on the deactivation degree parameter and the denitrification efficiency limit.

[0011] Through the above-mentioned technical means, the embodiments of this application can design the denitrification efficiency limit based on the SCR denitrification reaction system, and obtain the remaining life of the catalyst by combining the deactivation degree parameter, thereby clarifying the remaining service life of the catalyst and providing corresponding management suggestions, making the remaining life prediction results more valuable for engineering guidance.

[0012] Optionally, in one embodiment of this application, the step of analyzing the denitrification catalyst reaction performance decay characteristics based on the general formula of the denitrification catalyst reaction performance decay principle includes single time node, dual time node, and multi time node scenarios. This includes: in dual time node mode, obtaining the ammonia-nitrogen molar ratio, the denitrification efficiency limit, the overall series denitrification efficiency at the previous time node under excess ammonia, the overall series denitrification efficiency at the previous time node under the ammonia-nitrogen molar ratio, the length of time the catalyst has been running at the previous time node, the overall series denitrification efficiency at the current time node under excess ammonia, the overall series denitrification efficiency at the current time node under the ammonia-nitrogen molar ratio, and the length of time the catalyst has been running at the current time node, in order to determine the catalyst performance decay formula.

[0013] Through the above-mentioned technical means, the embodiments of this application can capture the dynamic change characteristics of the catalyst decay rate by comparing the operating data of the previous two time nodes, so as to calibrate the catalyst decay formula, significantly improve the accuracy of decay law identification, and provide reliable data support for timely adjustment of operation and maintenance strategies.

[0014] Optionally, in one embodiment of this application, the step of analyzing the denitrification catalyst reaction performance decay characteristics based on the general formula of the denitrification catalyst reaction performance decay principle includes: determining the catalyst performance decay formula using the multi-time-node mode when the preset unchanged conditions are met at the current time node; and determining the catalyst performance decay formula using the single-time-node mode when the preset unchanged conditions are not met at the current time node.

[0015] Through the above-mentioned technical means, the embodiments of this application determine whether the operating conditions meet the preset unchanged conditions, and adaptively select the multi-time node or single-time node analysis mode, ensuring the best match between the analysis method and the actual situation, which can achieve accurate analysis under different operating condition fluctuation scenarios and improve the practicality of engineering.

[0016] A second aspect of this application provides an apparatus for analyzing the degradation characteristics of SCR denitrification catalyst reaction performance, comprising: a derivation module for deriving and summarizing based on NO removal efficiency to generate a general formula for the degradation principle of denitrification catalyst reaction performance; an analysis module for analyzing the degradation characteristics of denitrification catalyst reaction performance at single time nodes, dual time nodes, and multiple time nodes based on the general formula for the degradation principle of denitrification catalyst reaction performance; and a generation module for determining the remaining lifetime of the catalyst based on the degradation characteristics of denitrification catalyst reaction performance and generating a degradation curve of denitrification catalyst reaction performance.

[0017] Through the aforementioned technical means, the embodiments of this application can derive and summarize a general formula for the degradation principle of denitrification catalyst reaction performance. This formula can analyze the degradation characteristics of denitrification catalyst reaction performance under single, dual, and multiple time nodes, predict the remaining lifetime of the catalyst, and generate degradation curves of denitrification catalyst reaction performance. This provides a clear theoretical model for the quantitative analysis and prediction of catalyst degradation characteristics, covering analysis modes of single, dual, and multiple time nodes. It can flexibly adapt to complex scenarios with different monitoring conditions. Combined with the determination of remaining lifetime of degradation characteristics and the generation of degradation curves, it improves the engineering practicality of the prediction results. This has significant meaning and value for supporting and guiding users in the high-quality operation and management of SCR denitrification catalysts.

[0018] Optionally, in one embodiment of this application, the analysis module includes: a calculation unit, used to obtain the ammonia-nitrogen molar ratio, the overall series denitrification efficiency under excess ammonia, the overall series denitrification efficiency under the ammonia-nitrogen molar ratio, and the length of time the catalyst has been running at the current node in a single time node mode, so as to calculate the deactivation degree parameter and determine the catalyst performance decay formula.

[0019] Through the above-mentioned technical means, the embodiments of this application can obtain key parameters such as ammonia-nitrogen molar ratio, excess ammonia and denitrification efficiency under normal operating conditions in a single time node mode, accurately calculate the deactivation degree parameters, establish a catalyst performance decay formula, effectively solve the problem of not being able to make effective predictions when data is scarce, and significantly improve the practicality and applicability of the method.

[0020] Optionally, in one embodiment of this application, the generation module includes: an acquisition unit for acquiring a denitrification efficiency limit; and a lifetime calculation unit for calculating the remaining lifetime of the catalyst based on the deactivation degree parameter and the denitrification efficiency limit.

[0021] Through the above-mentioned technical means, the embodiments of this application can design the denitrification efficiency limit based on the SCR denitrification reaction system, and obtain the remaining life of the catalyst by combining the deactivation degree parameter, thereby clarifying the remaining service life of the catalyst and providing corresponding management suggestions, making the remaining life prediction results more valuable for engineering guidance.

[0022] Optionally, in one embodiment of this application, the analysis module includes: a formula determination unit, used to obtain, in a dual-time-node mode, the ammonia-nitrogen molar ratio, the denitrification efficiency limit, the overall series denitrification efficiency at the previous time node under excess ammonia, the overall series denitrification efficiency at the previous time node under the ammonia-nitrogen molar ratio, the catalyst running time at the previous time node, the overall series denitrification efficiency at the current time node under excess ammonia, the overall series denitrification efficiency at the current time node under the ammonia-nitrogen molar ratio, and the catalyst running time at the current time node, so as to determine the catalyst performance degradation formula.

[0023] Through the above-mentioned technical means, the embodiments of this application can capture the dynamic change characteristics of the catalyst decay rate by comparing the operating data of the previous two time nodes, so as to calibrate the catalyst decay formula, significantly improve the accuracy of decay law identification, and provide reliable data support for timely adjustment of operation and maintenance strategies.

[0024] Optionally, in one embodiment of this application, the analysis module includes: a first determining unit, configured to determine the catalyst performance degradation formula using the multi-time-node mode when the preset unchanged conditions are met at the current time node; and a second determining unit, configured to determine the catalyst performance degradation formula using the single-time-node mode when the preset unchanged conditions are not met at the current time node.

[0025] Through the above-mentioned technical means, the embodiments of this application determine whether the operating conditions meet the preset unchanged conditions, and adaptively select the multi-time node or single-time node analysis mode, ensuring the best match between the analysis method and the actual situation, which can achieve accurate analysis under different operating condition fluctuation scenarios and improve the practicality of engineering.

[0026] A third aspect of this application provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method for analyzing the degradation characteristics of SCR denitrification catalyst reaction performance as described in the above embodiments.

[0027] The fourth aspect of this application provides a non-volatile computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for analyzing the degradation characteristics of SCR denitrification catalyst reaction performance.

[0028] A fifth aspect of this application provides a computer program product that stores a computer program that, when executed by a processor, implements the above-described method for analyzing the degradation characteristics of SCR denitrification catalyst reaction performance.

[0029] This application's embodiments derive and summarize a general formula for the decay principle of denitrification catalyst reaction performance. It can analyze the decay characteristics of denitrification catalyst reaction performance under single, dual, and multiple time nodes, predict the remaining catalyst lifetime, and generate denitrification catalyst reaction performance decay curves. This provides a clear theoretical model for the quantitative analysis and prediction of catalyst decay characteristics, covering single, dual, and multiple time node analysis modes. It can flexibly adapt to complex scenarios with different monitoring conditions. Combined with the determination of remaining lifetime and the generation of decay curves, it improves the engineering practicality of the prediction results. This has significant meaning and value in supporting and guiding users in the high-quality operation and management of SCR denitrification catalysts. Therefore, it solves the problems in related technologies, such as the lack of a unified general formula for decay principle and multi-node analysis methods for catalyst performance detection, leading to a lack of unified basis for quantitative analysis under different operating conditions, difficulty in adapting to complex scenarios with single, dual, or multiple time nodes, and the lack of graphical decay curves in the prediction results, failing to intuitively display the decay trend of denitrification efficiency or potential.

[0030] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0031] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a flowchart illustrating a method for analyzing the degradation characteristics of SCR denitrification catalyst reaction performance according to an embodiment of this application; Figure 2 This is a schematic diagram of the catalyst denitrification efficiency decay curve at a single time point according to an embodiment of this application; Figure 3 This is a schematic diagram of the catalyst potential decay curve at a single time node according to an embodiment of this application; Figure 4 This is a schematic diagram of the catalyst denitrification efficiency decay curve under two time nodes according to an embodiment of this application; Figure 5 This is a schematic diagram of the catalyst potential decay curve under two time nodes according to an embodiment of this application; Figure 6 This is a schematic diagram of the catalyst denitrification efficiency decay curve under multiple time points and no catalyst change according to an embodiment of this application; Figure 7 This is a schematic diagram of the catalyst potential decay curve under multiple time points and no catalyst change according to an embodiment of this application; Figure 8 This is a schematic diagram of the catalyst denitrification efficiency decay curve under multiple time points and catalyst changes according to an embodiment of this application; Figure 9 This is a schematic diagram of the catalyst potential decay curve under multiple time points and catalyst changes according to an embodiment of this application; Figure 10 This is a schematic diagram of a device for analyzing the reaction performance degradation characteristics of an SCR denitrification catalyst according to an embodiment of this application; Figure 11 This is a schematic diagram of the structure of an electronic device provided according to an embodiment of this application.

[0032] Figure label: 10-SCR denitrification catalyst reaction performance attenuation characteristic analysis device; 100-derivation module, 200-analysis module, 300-generation module; 1101-memory, 1102-processor, 1103-communication interface. Detailed Implementation

[0033] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0034] The following describes, with reference to the accompanying drawings, a method and apparatus for analyzing the degradation characteristics of SCR denitrification catalyst reaction performance according to embodiments of this application. In response to the aforementioned background technologies, the lack of a unified general formula for catalyst performance testing and a multi-node analysis method leads to a lack of unified basis for quantitative analysis under different operating conditions. This makes it difficult to adapt to complex scenarios with single, dual, or multiple time nodes, and the prediction results lack graphical decay curves, failing to intuitively display the decay trend of denitrification efficiency or potential. This application provides a method for analyzing the decay characteristics of SCR denitrification catalyst reaction performance. This method derives and summarizes a general formula for the decay principle of denitrification catalyst reaction performance, enabling analysis of the decay characteristics of denitrification catalyst reaction performance under single, dual, and multiple time nodes, prediction of catalyst remaining life, and generation of denitrification catalyst reaction performance decay curves. This provides a clear theoretical model for the quantitative analysis and prediction of catalyst decay characteristics, covering single, dual, and multiple time node analysis modes, and flexibly adapting to complex scenarios with different monitoring conditions. Combined with the determination of remaining life and the generation of decay curves, the engineering practicality of the prediction results is improved. This method has significant meaning and value in supporting and guiding users in the high-quality operation and management of SCR denitrification catalysts. This solves the problems in related technologies, such as the lack of a unified formula for the decay principle and multi-node analysis method for catalyst performance testing, which leads to a lack of unified basis for quantitative analysis under different operating conditions, making it difficult to adapt to complex scenarios with single, double or multiple time nodes, and the lack of graphical decay curves in the prediction results, making it impossible to intuitively show the decay trend of denitrification efficiency or potential.

[0035] Specifically, Figure 1 This is a schematic flowchart illustrating a method for analyzing the degradation characteristics of SCR denitrification catalyst reaction performance, as provided in an embodiment of this application.

[0036] like Figure 1 As shown, the method for analyzing the performance degradation characteristics of the SCR denitrification catalyst includes the following steps: In step S101, the derivation and summarization based on the NO removal efficiency are used to generate a general formula for the principle of denitrification catalyst reaction performance decay.

[0037] It is understood that the NO removal efficiency in the embodiments of this application can be understood as the efficiency of nitrogen oxides being reduced and removed in the SCR system, which can reflect the catalyst's ability to convert nitrogen oxides and can be the core performance indicator of the SCR denitrification system.

[0038] In actual implementation, the SCR denitrification reaction in this application embodiment can be described using ER theory. The reaction occurs between gaseous NO and adsorbed NH3, representing a first-order reaction for NO and a zero-order reaction for NH3. The reaction rate equation can be described as follows: , where r is the reaction rate; k is the reaction rate constant; [NO] is the concentration of NO in the gas phase; and [NH3] is the concentration of NH3 in the gas phase.

[0039] A differential equation is established to define the consumption rate of NO as follows: , where t is the reaction contact time between NO and the catalyst.

[0040] Define the NO removal efficiency as: , where [NO]0 is the initial concentration of NO, and [NO] t is defined as the terminal concentration of NO, and the solution is obtained as: , Under the conditions that the catalyst composition type and flue gas temperature remain unchanged, the reaction rate constant k is only related to the density of effective active sites in the catalyst. If the flue gas environment is stable, the activity decay of the catalyst is manifested as the density of effective active sites decreasing at a fixed proportional rate with macroscopic time, which can be described as: , where k0 is the initial reaction rate constant, C is the decay constant (0 < C < 1), and T is the macroscopic time. Therefore, the NO removal efficiency can be expressed as: , When the reaction conditions of the catalyst remain unchanged, the reaction contact time t between NO and the catalyst is a fixed value. Therefore, the reaction constant H can be defined as: , Furthermore, the NO removal efficiency can be simplified to: , Thus, the expression of the NO removal efficiency changing with the macroscopic time T is obtained, which is the general formula for the decay principle of the denitration efficiency of the catalyst.

[0041] In the embodiment of this application, the general formula for the decay principle of the reaction performance of the denitration catalyst can be generated based on the NO removal efficiency, providing a theoretical basis for the analysis of the catalyst performance, enabling the decay characteristics under different operating conditions to be quantitatively compared according to a unified standard, and enhancing the scientificity and rigor.

[0042] In step S102, based on the general formula for the decay principle of the reaction performance of the denitration catalyst, analyze the decay characteristics of the reaction performance of the denitration catalyst at single time nodes, double time nodes, and multiple time nodes.

[0043] It is understood that, in the embodiments of this application, a time node can be understood as a specific time point during the operation of the catalyst for performance testing, and data from different numbers of time nodes correspond to different analysis modes; a single time node can be understood as acquiring catalyst testing data at one time node; a dual time node can be understood as acquiring catalyst testing data at two time nodes; and multiple time nodes can be understood as acquiring catalyst testing data at two or more time nodes.

[0044] In actual implementation, the embodiments of this application can obtain SCR denitrification system parameters, including denitrification efficiency, and calculate deactivation degree parameters. Based on the calculated deactivation degree parameters and the ultimate denitrification efficiency, the denitrification catalyst reaction performance decay characteristics, including single time node, dual time node and multi time node, are analyzed based on the general formula of the denitrification catalyst reaction performance decay principle.

[0045] The embodiments of this application can provide multiple time-point analysis modes, achieving comprehensive coverage of catalyst performance degradation characteristics under different data conditions, significantly improving the practicality and applicability of the method, and increasing engineering adaptability.

[0046] Optionally, in one embodiment of this application, based on the general formula of the denitrification catalyst reaction performance decay principle, the denitrification catalyst reaction performance decay characteristics including single time node, dual time node and multi time node are analyzed, including: in the single time node mode, obtaining the ammonia-nitrogen molar ratio, the overall series denitrification efficiency under excess ammonia, the overall series denitrification efficiency under the ammonia-nitrogen molar ratio and the length of time the catalyst has been running at the current node, in order to calculate the deactivation degree parameter and determine the catalyst performance decay formula.

[0047] It is understood that the ammonia-nitrogen molar ratio in the embodiments of this application can be understood as the ratio of NH3 introduced into the SCR system to NO in the flue gas. x The molar ratio of NO to nitrogen is a key operating parameter affecting denitrification efficiency; the overall series denitrification efficiency under excess ammonia can be understood as the ratio of NO to nitrogen. x The ultimate denitrification efficiency of the catalyst bed during complete reaction; the deactivation parameter can be understood as the core indicator for quantifying the degree of decrease in catalyst activity.

[0048] For example, embodiments of this application can conduct overall series catalyst testing for the first time in an SCR denitrification system, using catalyst testing data from only a single time point to predict catalyst lifetime. The following parameters need to be known: the designed ammonia-to-nitrogen molar ratio MR; the designed denitrification efficiency limit D; and the overall series denitrification efficiency obtained from laboratory testing under excess ammonia conditions. 极限 Laboratory testing yielded (or estimated) the overall tandem denitrification efficiency under the designed MR system. 设计 The current node represents the length of time (t) the catalyst has been operating, in years.

[0049] Furthermore, the inactivation degree parameter ε is defined and calculated as follows: , For example, the denitrification efficiency limit D of a certain unit is 0.91; the design ammonia-nitrogen molar ratio MR is 0.92; the overall series denitrification efficiency obtained by laboratory testing under the design MR is... 设计 If the value is 0.915, then the calculated deactivation parameter ε is 0.5. Generally, the ε value should be less than 1; a larger value indicates a better catalyst condition, while a smaller value indicates a more severe degree of catalyst deactivation.

[0050] Furthermore, based on the calculated deactivation degree parameter ε and the limiting denitrification efficiency... 极限 By obtaining the corresponding reference value of the catalyst's remaining lifespan, and based on the general formula for the decay of catalyst denitrification efficiency over time, the boundary conditions of the function can be determined through the general formula for the reference value of the catalyst's remaining lifespan at a single time node, thus obtaining the formula for the decay of catalyst denitrification efficiency.

[0051] The embodiments of this application can obtain key parameters such as the ammonia-nitrogen molar ratio, excess ammonia, and denitrification efficiency under normal operating conditions in a single time node mode, accurately calculate the deactivation degree parameters, and establish a catalyst performance decay formula. This effectively solves the problem of not being able to make effective predictions when data is scarce, and significantly improves the practicality and applicability of the method.

[0052] Optionally, in one embodiment of this application, based on the general formula for the degradation principle of denitrification catalyst reaction performance, the degradation characteristics of denitrification catalyst reaction performance including single time node, dual time node, and multiple time node are analyzed, including: in dual time node mode, obtaining the ammonia-nitrogen molar ratio, denitrification efficiency limit, overall series denitrification efficiency of the previous time node under excess ammonia, overall series denitrification efficiency of the previous time node under the ammonia-nitrogen molar ratio, the length of time the catalyst has been running at the previous time node, the overall series denitrification efficiency of the current time node under excess ammonia, the overall series denitrification efficiency of the current time node under the ammonia-nitrogen molar ratio, and the length of time the catalyst has been running at the current time node, in order to determine the catalyst performance degradation formula.

[0053] It is understood that the time interval between the previous time node and the current time node in the embodiments of this application can be set according to the system monitoring cycle. By comparing the parameters of the two nodes, the dynamic changes in the catalyst decay rate can be captured.

[0054] For example, embodiments of this application can conduct a second overall series catalyst test on an SCR denitrification system. Data from two time points can be used to fully describe the degradation characteristics of the denitrification catalyst reaction performance between the two points and in the future. Parameters that need to be obtained include: the design ammonia-nitrogen molar ratio MR; the design denitrification efficiency limit D; and the overall series denitrification efficiency obtained from laboratory testing at the previous time point under excess ammonia conditions. 极限-1 At the previous time point, laboratory tests obtained or estimated the overall tandem denitrification efficiency under the designed MR system. 设计-1 The length of time t that the catalyst has been operating at the previous time point. -1 The unit is year; at the current point in time, the overall series denitrification efficiency obtained by laboratory testing under excess ammonia conditions is... 极限-2 At the current point in time, the overall tandem denitrification efficiency obtained or estimated by laboratory testing under the designed MR system. 设计-2 At the current time point, the length of time (t) the catalyst has been running. -2 The unit is year.

[0055] Furthermore, based on the general formula for the decay of catalyst denitrification efficiency over time, the boundary conditions of the decay formula are completely determined using the basic parameters at two time points, and the catalyst performance decay formula is determined.

[0056] Through the above-mentioned technical means, the embodiments of this application can capture the dynamic change characteristics of the catalyst decay rate by comparing the operating data of the previous two time nodes, so as to calibrate the catalyst decay formula, significantly improve the accuracy of decay law identification, and provide reliable data support for timely adjustment of operation and maintenance strategies.

[0057] Optionally, in one embodiment of this application, based on the general formula of the denitrification catalyst reaction performance decay principle, the denitrification catalyst reaction performance decay characteristics including single time node, dual time node and multi time node are analyzed, including: when the preset unchanged conditions are met at the current time node, the catalyst performance decay formula is determined by using the multi time node mode; when the preset unchanged conditions are not met at the current time node, the catalyst performance decay formula is determined by using the single time node mode.

[0058] It is understood that the preset "unchanged" condition in the embodiments of this application can be that the overall catalyst has not been changed, and there are no changes such as the addition, replacement, scrapping or regeneration of the catalyst. The preset "unchanged" condition can be set by those skilled in the art according to the actual situation, and no specific restrictions are imposed here.

[0059] For example, in the embodiments of this application, the overall catalyst has not changed at the current time point, and there are no situations such as adding, replacing, scrapping or regenerating the catalyst. The performance change of the overall catalyst is continuous and does not jump. At this time, a multi-time point mode can be adopted to determine the catalyst performance decay formula by using the parameters of the current time point and the previous time point.

[0060] At the current time point, no changes have occurred to the overall catalyst, such as addition, replacement, scrapping, or regeneration; therefore, the performance changes of the overall catalyst are discontinuous and jumpy. In this case, a single time point model can be adopted, calculating the deactivation degree parameter ε based on the current time point, and further determining the catalyst performance degradation formula.

[0061] This application embodiment determines whether the operating conditions meet the preset unchanged conditions and adaptively selects the multi-time node or single-time node analysis mode, ensuring the best match between the analysis method and the actual situation. This enables accurate analysis under different operating condition fluctuation scenarios and improves the practicality of engineering.

[0062] In step S103, the remaining life of the catalyst is determined based on the degradation characteristics of the denitrification catalyst reaction performance, and a degradation curve of the denitrification catalyst reaction performance is generated.

[0063] It is understood that the remaining lifetime of the catalyst in the embodiments of this application can be understood as the time required for the catalyst from the current moment until its denitrification efficiency drops to the system design limit; the denitrification catalyst reaction performance decay curve can be the catalyst denitrification efficiency decay curve, the catalyst potential decay curve, the catalyst denitrification efficiency decay curve and the catalyst potential decay curve, which graphically show the trend of catalyst performance changing over time and intuitively reflect the decay trend.

[0064] For example, in the embodiments of this application, the remaining life of the catalyst can be determined by the catalyst performance decay formula based on the reaction performance decay characteristics of the denitrification catalyst, and a denitrification catalyst reaction performance decay curve can be generated.

[0065] Specifically, in single-time-node mode, based on the catalyst denitrification efficiency decay formula, the desired denitrification catalyst reaction performance decay curve is obtained by further plotting the function. Furthermore, the desired catalyst denitrification efficiency decay curve, catalyst potential decay curve, and catalyst potential decay curve can be selected according to actual needs, such as... Figure 2 and Figure 3 As shown.

[0066] In the dual-time-node mode, the desired denitrification catalyst performance decay curve is obtained by plotting the determined denitrification catalyst reaction performance decay formula. Furthermore, the desired denitrification efficiency decay curve, catalyst potential decay curve, and catalyst denitrification efficiency decay curve can be selected according to actual needs, such as... Figure 4 and Figure 5 As shown.

[0067] Furthermore, in the multi-time-node mode, as the catalyst testing work for the target unit continues, the number of data nodes generated will gradually increase, and the catalyst performance degradation curve will also continue to extend. The basic principle for curve plotting is: (1) The historical performance decay curve is used to depict the past time nodes. The two adjacent nodes are independent segments of the function. The entire historical performance decay curve is presented as a multi-segment function.

[0068] (2) The performance degradation curves at the current time point and in the future are determined by the degradation formula through single-time-point prediction or multi-time-point prediction, which are divided into two categories: (a) At the current time point, the overall catalyst has not changed, and there are no situations such as catalyst addition, replacement, scrapping, or regeneration. The overall catalyst performance changes continuously without jumps. In this case, a multi-time point mode can be adopted to determine the catalyst performance decay formula by using the parameters of the current time point and the previous time point; (b) At the current time point, no changes have occurred to the overall catalyst, such as addition, replacement, scrapping, or regeneration, and the performance changes of the overall catalyst are discontinuous and jumpy. In this case, a single time point mode can be adopted, and the deactivation degree parameter ε can be calculated based on the current time point to further determine the catalyst performance decay formula.

[0069] Specifically, the process for plotting the denitration catalyst reaction performance decay curve is as follows: If the matching scenario (a) involves multiple time nodes with no catalyst changes, the historical data and curves prior to the previous time node are first inherited. Then, the data is linked to the established denitrification catalyst performance degradation formula, and prediction curves are plotted for the time intervals between the previous and current time nodes, as well as for future times, thus obtaining a complete catalyst denitrification performance degradation curve. Depending on actual needs, the following can be selected to generate: catalyst denitrification efficiency degradation curve, catalyst potential degradation curve, catalyst denitrification efficiency degradation curve, and catalyst potential degradation curve. Figure 6 and Figure 7 As shown.

[0070] If, in matching scenario (b), multiple time nodes occur and the catalyst changes, the historical data and curves prior to the previous time node are first inherited; then, a historical prediction curve is plotted from the previous time node to the corresponding node when the catalyst changes; further, the curve is connected to the current time node in a jump-like manner, presenting a sawtooth shape; finally, a prediction curve is plotted for the future time after the current time node using the determined denitrification catalyst reaction performance decay formula, thus obtaining a complete denitrification catalyst reaction performance decay curve. Depending on actual needs, the following can be selected to generate: catalyst denitrification efficiency decay curve, catalyst potential decay curve, catalyst denitrification efficiency decay curve, and catalyst potential decay curve, such as... Figure 8 and Figure 9 As shown.

[0071] This application provides a method for plotting the denitrification catalyst reaction performance decay curve under single-time-node, dual-time-node, and multi-time-node conditions. It can also select to generate catalyst denitrification efficiency decay curve, catalyst potential decay curve, catalyst denitrification efficiency decay curve, and catalyst potential decay curve according to actual needs, realizing the graphical expression of the predictive analysis results.

[0072] Optionally, in one embodiment of this application, determining the remaining lifetime of the catalyst based on the degradation characteristics of the denitrification catalyst reaction performance includes: obtaining a denitrification efficiency limit; and obtaining the remaining lifetime of the catalyst based on the deactivation degree parameter and the denitrification efficiency limit.

[0073] It is understood that the denitrification efficiency limit in the embodiments of this application can be understood as the minimum allowable denitrification efficiency required by the design of the SCR system, which is a key criterion for determining the end of the catalyst life.

[0074] In practical implementation, this application embodiment can utilize catalyst detection data from a single time point to predict catalyst lifetime, extracting denitrification efficiency limits from SCR system design manuals or environmental filing documents. Based on the calculated deactivation degree parameter ε and the limiting denitrification efficiency... 极限 Refer to Table 1 to obtain the corresponding reference values ​​for the remaining catalyst lifetime. Table 1 is a table of reference values ​​for the remaining catalyst lifetime.

[0075] Table 1

[0076] In this embodiment, the general formula for the catalyst remaining lifetime τ at a single time node obtained by fitting is as follows: .

[0077] For example, in the embodiments of this application, in a dual-time-node mode, based on the general formula for the decay of catalyst denitrification efficiency over time, the boundary conditions of the decay formula are completely determined using the basic parameters of the two time nodes, and then the catalyst performance decay formula is determined. Further... The macroscopic time T corresponding to =D is used to determine the time node corresponding to the end of the catalyst lifetime, thereby obtaining the overall remaining lifetime of the catalyst.

[0078] In the multi-time-node mode, only the catalyst performance degradation formula at the current time node is used, in order to... The macroscopic time T corresponding to =D is used to determine the time node corresponding to the end of the catalyst lifetime, thereby obtaining the overall remaining lifetime of the catalyst.

[0079] The embodiments of this application can design denitrification efficiency limits based on the SCR denitrification reaction system, and obtain the remaining catalyst lifetime by combining the deactivation degree parameter, thereby clarifying the remaining service life of the catalyst and providing corresponding management suggestions, making the remaining lifetime prediction results more valuable for engineering guidance.

[0080] The SCR denitrification catalyst reaction performance degradation characteristic analysis method proposed in this application can derive and summarize a general formula for the denitrification catalyst reaction performance degradation principle. It can analyze the denitrification catalyst reaction performance degradation characteristics under single, dual, and multiple time nodes, predict the remaining catalyst lifetime, and generate denitrification catalyst reaction performance degradation curves. This provides a clear theoretical model for the quantitative analysis and prediction of catalyst degradation characteristics, covering single, dual, and multiple time node analysis modes. It can flexibly adapt to complex scenarios with different monitoring conditions. Combined with the determination of remaining lifetime and the generation of degradation curves, it improves the engineering practicality of the prediction results. This has significant meaning and value in supporting and guiding users in the high-quality operation and management of SCR denitrification catalysts. Therefore, it solves the problems in related technologies where the lack of a unified general formula for degradation principle and multi-node analysis method for catalyst performance detection leads to a lack of unified basis for quantitative analysis under different operating conditions, making it difficult to adapt to complex scenarios with single, dual, or multiple time nodes. Furthermore, the prediction results lack graphical degradation curves, failing to intuitively display the degradation trend of denitrification efficiency or potential.

[0081] Next, referring to the accompanying drawings, the apparatus for analyzing the degradation characteristics of SCR denitrification catalyst reaction performance according to the embodiments of this application is described.

[0082] Figure 10 This is a schematic diagram of the structure of the SCR denitrification catalyst reaction performance degradation characteristic analysis device according to an embodiment of this application.

[0083] like Figure 10As shown, the SCR denitrification catalyst reaction performance attenuation characteristic analysis device 10 includes: a derivation module 100, an analysis module 200, and a generation module 300.

[0084] Among them, the derivation module 100 is used to derive and summarize the denitrification catalyst reaction performance decay principle based on the NO removal efficiency.

[0085] Analysis module 200 is used to analyze the degradation characteristics of denitrification catalyst reaction performance, including single time node, dual time node and multi time node, based on the general formula of the denitrification catalyst reaction performance degradation principle.

[0086] The generation module 300 is used to determine the remaining life of the catalyst based on the degradation characteristics of the denitrification catalyst reaction performance and to generate the degradation curve of the denitrification catalyst reaction performance.

[0087] Optionally, in one embodiment of this application, the analysis module 200 includes a calculation unit.

[0088] The calculation unit is used to obtain the ammonia-nitrogen molar ratio, the overall series denitrification efficiency under excess ammonia, the overall series denitrification efficiency under the ammonia-nitrogen molar ratio, and the length of time the catalyst has been running at the current node in single-time-node mode, so as to calculate the deactivation degree parameter and determine the catalyst performance decay formula.

[0089] Optionally, in one embodiment of this application, the generation module 300 includes: an acquisition unit and a lifetime calculation unit.

[0090] The acquisition unit is used to acquire the denitrification efficiency limit.

[0091] The lifetime calculation unit is used to calculate the remaining lifetime of the catalyst based on the deactivation degree parameter and the denitrification efficiency limit.

[0092] Optionally, in one embodiment of this application, the analysis module 200 includes a formula determination unit.

[0093] The formula determination unit is used to obtain the ammonia-nitrogen molar ratio, denitrification efficiency limit, overall series denitrification efficiency under excess ammonia at the previous time node, overall series denitrification efficiency under the ammonia-nitrogen molar ratio at the previous time node, the length of time the catalyst has been running at the previous time node, the overall series denitrification efficiency under excess ammonia at the current time node, the overall series denitrification efficiency under the ammonia-nitrogen molar ratio at the current time node, and the length of time the catalyst has been running at the current time node in dual time node mode, so as to determine the catalyst performance degradation formula.

[0094] Optionally, in one embodiment of this application, the analysis module 200 includes: a first determining unit and a second determining unit.

[0095] The first determining unit is used to determine the catalyst performance degradation formula in a multi-time-node mode under the premise that the preset unchanged conditions are met at the current time node.

[0096] The second determining unit is used to determine the catalyst performance degradation formula in a single-time-node mode when the preset unchanged conditions are not met at the current time node.

[0097] It should be noted that the explanation of the above-mentioned method for analyzing the reaction performance degradation characteristics of SCR denitrification catalyst also applies to the device for analyzing the reaction performance degradation characteristics of SCR denitrification catalyst in this embodiment, and will not be repeated here.

[0098] The SCR denitrification catalyst reaction performance decay characteristic analysis device proposed in this application can derive and summarize a general formula for the denitrification catalyst reaction performance decay principle. It can analyze the denitrification catalyst reaction performance decay characteristics at single, dual, and multiple time nodes, predict the remaining catalyst lifetime, and generate denitrification catalyst reaction performance decay curves. This provides a clear theoretical model for the quantitative analysis and prediction of catalyst decay characteristics, covering single, dual, and multiple time node analysis modes. It can flexibly adapt to complex scenarios with different monitoring conditions. Combined with the determination of remaining lifetime and the generation of decay curves, it improves the engineering practicality of the prediction results. This has significant meaning and value in supporting and guiding users in the high-quality operation and management of SCR denitrification catalysts. Therefore, it solves the problems in related technologies where the lack of a unified general formula for decay principle and multi-node analysis method for catalyst performance detection leads to a lack of unified basis for quantitative analysis under different operating conditions, making it difficult to adapt to complex scenarios with single, dual, or multiple time nodes. Furthermore, the prediction results lack graphical decay curves, failing to intuitively display the decay trend of denitrification efficiency or potential.

[0099] Figure 11 A schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device may include: The memory 1101, the processor 1102, and the computer program stored on the memory 1101 and executable on the processor 1102.

[0100] When the processor 1102 executes the program, it implements the method for analyzing the degradation characteristics of the SCR denitrification catalyst reaction performance provided in the above embodiments.

[0101] Furthermore, electronic devices also include: Communication interface 1103 is used for communication between memory 1101 and processor 1102.

[0102] The memory 1101 is used to store computer programs that can run on the processor 1102.

[0103] The memory 1101 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage.

[0104] If the memory 1101, processor 1102, and communication interface 1103 are implemented independently, then the communication interface 1103, memory 1101, and processor 1102 can be interconnected via a bus to complete communication between them. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 11 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0105] Optionally, in a specific implementation, if the memory 1101, processor 1102, and communication interface 1103 are integrated on a single chip, then the memory 1101, processor 1102, and communication interface 1103 can communicate with each other through an internal interface.

[0106] The processor 1102 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.

[0107] This application also provides a non-volatile computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the above-described method for analyzing the degradation characteristics of SCR denitrification catalyst reaction performance.

[0108] This application also provides a computer program product storing a computer program that, when executed by a processor, implements the above-mentioned method for analyzing the degradation characteristics of SCR denitrification catalyst reaction performance.

[0109] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0110] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0111] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0112] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0113] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, it can be implemented using any one or more of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0114] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0115] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0116] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A method for analyzing the performance degradation characteristics of SCR denitration catalysts, characterized in that, Includes the following steps: Based on the NO removal efficiency, a general formula for the principle of denitrification catalyst reaction performance decay is derived and summarized. Based on the general formula of the denitrification catalyst reaction performance decay principle, the denitrification catalyst reaction performance decay characteristics including single time node, dual time node and multiple time node are analyzed. The remaining life of the catalyst is determined based on the degradation characteristics of the denitrification catalyst's reaction performance, and a degradation curve of the denitrification catalyst's reaction performance is generated.

2. The method according to claim 1, characterized in that, The general formula based on the principle of denitrification catalyst reaction performance decay analyzes the denitrification catalyst reaction performance decay characteristics under single time node, dual time node, and multi time node conditions, including: In single-time-node mode, the ammonia-nitrogen molar ratio, the overall series denitrification efficiency under excess ammonia, the overall series denitrification efficiency under the ammonia-nitrogen molar ratio, and the length of time the catalyst has been running at the current node are obtained to calculate the deactivation parameter and determine the catalyst performance degradation formula.

3. The method according to claim 2, characterized in that, The determination of the remaining catalyst lifetime based on the degradation characteristics of the denitrification catalyst reaction performance includes: Obtain the denitrification efficiency limit; The remaining lifetime of the catalyst is determined based on the deactivation degree parameter and the denitrification efficiency limit.

4. The method according to claim 2, characterized in that, The general formula based on the principle of denitrification catalyst reaction performance decay analyzes the denitrification catalyst reaction performance decay characteristics under single time node, dual time node, and multi time node conditions, including: In dual-time-node mode, the ammonia-nitrogen molar ratio, the denitrification efficiency limit, the overall series denitrification efficiency at the previous time node under excess ammonia, the overall series denitrification efficiency at the previous time node under the ammonia-nitrogen molar ratio, the catalyst running time at the previous time node, the overall series denitrification efficiency at the current time node under excess ammonia, the overall series denitrification efficiency at the current time node under the ammonia-nitrogen molar ratio, and the catalyst running time at the current time node are obtained to determine the catalyst performance degradation formula.

5. The method according to claim 4, characterized in that, The general formula based on the principle of denitrification catalyst reaction performance decay analyzes the denitrification catalyst reaction performance decay characteristics under single time node, dual time node, and multi time node conditions, including: Under the condition that the preset unchanged conditions are met at the current time point, the multi-time point mode is used to determine the catalyst performance degradation formula; If the preset unchanged conditions are not met at the current time point, the catalyst performance degradation formula is determined using the single time point mode.

6. A device for analyzing the reaction performance degradation characteristics of SCR denitrification catalysts, characterized in that, include: The derivation module is used to derive and summarize the denitration efficiency of NO to generate a general formula for the denitration catalyst reaction performance decay principle. The analysis module is used to analyze the degradation characteristics of denitrification catalyst reaction performance, including single time nodes, dual time nodes, and multiple time nodes, based on the general formula of the denitrification catalyst reaction performance degradation principle. The generation module is used to determine the remaining lifetime of the catalyst based on the degradation characteristics of the denitrification catalyst reaction performance, and to generate the degradation curve of the denitrification catalyst reaction performance.

7. The apparatus according to claim 6, characterized in that, The analysis module includes: The calculation unit is used to obtain the ammonia-nitrogen molar ratio, the overall series denitrification efficiency under excess ammonia, the overall series denitrification efficiency under the ammonia-nitrogen molar ratio, and the length of time the catalyst has been running at the current node in single-time-node mode, so as to calculate the deactivation degree parameter and determine the catalyst performance decay formula.

8. An electronic device, characterized in that, include: The memory, the processor, and the computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method for analyzing the degradation characteristics of SCR denitrification catalyst reaction performance as described in any one of claims 1-5.

9. A non-volatile computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the method for analyzing the degradation characteristics of SCR denitrification catalyst reaction performance as described in any one of claims 1-5.

10. A computer program product, comprising a computer program, characterized in that, The computer program is executed to implement the method for analyzing the degradation characteristics of SCR denitrification catalyst reaction performance as described in any one of claims 1-5.

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