System and method for rapidly accounting catalyst balance of DMTO device

Abstract

The invention discloses a system and a method for rapidly accounting catalyst balance of a DMTO device, which are characterized in that the addition amount, loss amount and removal rate of a catalyst in a reactor are calculated through a reactor system catalyst balance module according to the speed limit, cross sectional area and catalyst dust concentration parameters of a reactor cyclone separator, and a reactor system catalyst balance table is established; the method comprises the following steps: calculating the addition amount, loss amount and removal rate of a catalyst in a regenerator through a regenerator system catalyst balance module according to the speed limit, cross sectional area and catalyst dust concentration parameters of a regenerator cyclone separator, and establishing a regenerator system catalyst balance table; and integrating data of a catalyst balance table of a reactor and a regenerator system through a rapid accounting technical model module, establishing a technical model for rapidly accounting catalyst balance of the DMTO device, and automatically extracting the data. And efficient, stable and optimized operation of the DMTO device can be deeply monitored.

Description

Technical Field

[0001] The present invention relates to the field of DMTO devices, and particularly to a system and method for quickly calculating the catalyst balance of a DMTO device. Background Art

[0002] In a DMTO device, catalyst balance is crucial. The existing technical solutions monitor the catalyst loss by means of catalyst dust concentration detectors after the reactor cyclone separator and the regenerator cyclone separator, and measure the hourly catalyst injection amount by a small feeder. However, the existing technology has obvious disadvantages. It cannot monitor key data such as the amount of catalyst added to the system per day, the amount of catalyst lost per day, the amount of catalyst entering the water system per day, the catalyst removal rate of the reactor cyclone separator, and the catalyst removal rate of the regenerator cyclone separator, which is not conducive to the accurate control of the material in the catalyst system of the DMTO device. Summary of the Invention

[0003] The purpose of the present invention is to solve the above problems and design a system and method for quickly calculating the catalyst balance of a DMTO device.

[0004] Furthermore, in the above-mentioned system for quickly calculating the catalyst balance of a DMTO device, the balance system includes the following modules:

[0005] The catalyst balance module of the reactor system is used to calculate and establish a catalyst balance table for the reactor system according to the speed limit, cross-sectional area, and catalyst dust concentration parameters of the reactor cyclone separator;

[0006] The catalyst balance module of the regenerator system is used to calculate and establish a catalyst balance table for the regenerator system according to the speed limit, cross-sectional area, and catalyst dust concentration parameters of the regenerator cyclone separator;

[0007] The quick calculation technical model module is used to integrate the data of the catalyst balance tables of the reactor and regenerator systems, establish a technical model for quickly calculating the catalyst balance of the DMTO device, and automatically extract data.

[0008] Furthermore, in the above-mentioned system for quickly calculating the catalyst balance of a DMTO device, the catalyst balance table of the reactor system includes:

[0009] The catalyst balance table of the reactor system is calculated by using the mass flow algorithm, and the calculation process is as follows:

[0010] Obtain the flow velocity v of the catalyst in the cyclone separator, the cross-sectional area A of the cyclone separator, and the catalyst dust concentration C, then the mass flow Q of the catalyst m Is calculated by the following formula:

[0011] Qm = v × A × C

[0012] Within a certain time interval Δt, calculate the mass of the catalyst entering and leaving the reactor according to the mass flow formula;

[0013] Based on the calculation results, establish a catalyst balance table for the reactor system, which includes the added amount, loss amount, and remaining amount of the catalyst; among them, the added amount M of the catalyst in is obtained by calculating the total mass of the catalyst entering the reactor, and the loss amount M loss is obtained by calculating the total mass of the catalyst leaving the reactor, and the removal rate R of the catalyst remove The calculation formula is:

[0014]

[0015] Furthermore, in the above-mentioned catalyst balance system for rapid accounting of the DMTO device, the calculation parameters in the catalyst balance module of the reactor system include:

[0016] The parameters in the reactor system at least include: the reaction gas volume at the inlet of the first-stage cyclone separator of the reactor (m 3 / h), the reaction gas volume at the inlet of the second-stage cyclone separator of the reactor (m 3 / h), the reaction gas volume at the outlet of the second-stage cyclone separator of the reactor (m 3 / h), the reaction gas volume at the inlet of the third-stage cyclone separator of the reactor (m 3 / h), the reaction gas volume at the outlet of the fourth-stage cyclone separator of the reactor (m 3 / h), the reaction gas volume at the outlet of the third-stage cyclone separator of the reactor (m 3 / h), the actual amount of catalyst at the inlet of the third-stage cyclone separator of the reactor (kg / d), the actual amount of catalyst at the outlet of the third-stage cyclone separator of the reactor (kg / d), the removal amount of catalyst from the third-stage cyclone separator of the reactor (kg / d), the removal rate of catalyst from the third-stage cyclone separator of the reactor (%), the removal rate of catalyst from the fourth-stage cyclone separator of the reactor (%), the removal amount of catalyst from the fourth-stage cyclone separator of the reactor (kg / d), the reaction gas volume at the inlet of the fourth-stage cyclone filter of the reactor (m 3 / h), the catalyst concentration at the inlet of the fourth-stage cyclone filter of the reactor (g / m 3 ), the amount of catalyst at the inlet of the fourth-stage cyclone filter of the reactor (kg / d), the amount of catalyst at the inlet of the fourth-stage cyclone filter of the reactor (kg / d), the actual discharge amount of catalyst from the fourth-stage cyclone filter of the reactor (kg / d), the removal rate of catalyst from the fourth-stage cyclone filter of the reactor (%), and the amount of catalyst entering the water system (kg / d).

[0017] Furthermore, in the above-mentioned catalyst balance system for rapid accounting of the DMTO device, the catalyst balance table of the regenerator system includes:

[0018] The catalyst balance sheet of the regenerator system is calculated using the mass flow algorithm, and the calculation process is as follows:

[0019] Obtain the speed limit v of the regenerator cyclone separator reg , cross-sectional area A reg and catalyst dust concentration C reg , and calculate the mass flow rate of the catalyst in the regenerator

[0020]

[0021] Within the same time interval Δt, calculate the mass of the catalyst entering and leaving the regenerator; establish a catalyst balance sheet for the regenerator system, including the addition amount of the catalyst loss amount removal rate where and are the total masses of the catalyst entering and leaving the regenerator respectively, and the removal rate calculation formula is:

[0022]

[0023] Furthermore, in the above-mentioned catalyst balance system for quickly calculating the DMTO device, the calculation parameters of the catalyst balance module of the regenerator system include:

[0024] The regenerator system includes at least: the reaction gas volume at the inlet of the first-stage cyclone separator of the regenerator (m 3 / h), the reaction gas volume at the inlet of the second-stage cyclone separator of the regenerator (m 3 / h), the reaction gas volume at the outlet of the second-stage cyclone separator of the regenerator (m 3 / h), the reaction gas volume at the inlet of the third-stage cyclone separator of the regenerator (m 3 / h), the reaction gas volume at the outlet of the third-stage cyclone separator of the regenerator (m 3 / h), the actual amount of catalyst at the inlet of the third-stage cyclone separator of the regenerator (kg / d), the actual amount of catalyst at the outlet of the third-stage cyclone separator of the regenerator (kg / d), the catalyst removal amount of the third-stage cyclone separator of the regenerator (kg / d), the catalyst removal rate of the third-stage cyclone separator of the regenerator (%), and the catalyst content from the regenerator to the dust removal tower (kg / d).

[0025] 6. Furthermore, in the above-mentioned catalyst balance system for quickly calculating the DMTO device, the technical model includes:

[0026] The technical model is established using a data fusion model and a linear regression prediction model:

[0027] Fuse the data of the catalyst balance sheet of the reactor system and the catalyst balance sheet of the regenerator system, and use the weighted average method for data fusion. For the added amount of the catalyst, the fused added amount is calculated as:

[0028]

[0029] where ω1 and ω2 are weight coefficients, and ω1 + ω2 = 1.

[0030] Use the fused data to establish a linear regression prediction model for predicting the future catalyst balance of the DMTO unit;

[0031] Let the independent variable x be time and the dependent variable y be the remaining amount of the catalyst. The linear regression equation is:

[0032] y = a × x + b

[0033] where a and b are regression coefficients, which are solved by the least squares method.

[0034] Furthermore, in the above-mentioned catalyst balance system for quickly calculating the DMTO unit, the quick calculation technology model module integrates the data of the catalyst balance sheets of the reactor and regenerator systems, establishes a technical model for quickly calculating the catalyst balance of the DMTO unit, and automatically extracts data, including:

[0035] The parameters of the catalyst balance sheet at least include: the amount of catalyst lost from the reactor entering the water system (kg / d), the amount of catalyst lost from the reactor (kg / d), the total amount of catalyst lost in the reactor-regenerator system (kg / d), the discharge of waste catalyst from the three-way cyclone in the reactor (kg / d), the discharge of waste catalyst from the three-way cyclone in the regenerator (kg / d), the total amount of catalyst loss in the reactor-regenerator system (kg / d), the growth rate of the total inventory in the reactor-regenerator system (kg / d), and the small feed amount (kg / d).

[0036] Furthermore, the present invention also provides a method for monitoring the catalyst balance of a DMTO unit based on quick calculation. The method for monitoring the catalyst balance of the DMTO unit includes the following steps:

[0037] Through the catalyst balance module of the reactor system, calculate the added amount, loss amount and removal rate of the catalyst in the reactor according to the speed limit, cross-sectional area and catalyst dust concentration parameters of the reactor cyclone separator, and establish a catalyst balance sheet for the reactor system;

[0038] Through the catalyst balance module of the regenerator system, calculate the added amount, loss amount and removal rate of the catalyst in the regenerator according to the speed limit, cross-sectional area and catalyst dust concentration parameters of the regenerator cyclone separator, and establish a catalyst balance sheet for the regenerator system;

[0039] Integrate the data of the catalyst balance sheets of the reactor and regenerator systems through the quick calculation technical model module, establish a technical model for quickly calculating the catalyst balance of the DMTO unit, and automatically extract the data.

[0040] Its beneficial effects are as follows. Through the catalyst balance module of the reactor system, according to the speed limit, cross-sectional area and catalyst dust concentration parameters of the reactor cyclone separator, calculate the catalyst addition amount, loss amount and removal rate in the reactor, and establish a catalyst balance sheet for the reactor system; through the catalyst balance module of the regenerator system, according to the speed limit, cross-sectional area and catalyst dust concentration parameters of the regenerator cyclone separator, calculate the catalyst addition amount, loss amount and removal rate in the regenerator, and establish a catalyst balance sheet for the regenerator system; integrate the data of the catalyst balance sheets of the reactor and regenerator systems through the quick calculation technical model module, establish a technical model for quickly calculating the catalyst balance of the DMTO unit, and automatically extract the data. Realize the monitoring of the daily catalyst addition amount to the system, daily catalyst loss amount, daily catalyst amount entering the water system, catalyst removal rate of the reactor cyclone separator, and catalyst removal rate of the regenerator cyclone separator in the catalyst system of the DMTO unit. Can deeply monitor the efficient, stable and optimized operation of the DMTO unit. Significantly improve the creativity and accuracy of the technical solution by using algorithms and models, and provide strong support for the refined management of the DMTO unit. Description of the Drawings

[0041] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention.

[0042] Figure 1 Schematic diagram of the first embodiment of a system for quickly calculating the catalyst balance of a DMTO unit in an embodiment of the present invention;

[0043] Figure 2 Parameter diagram of the primary cyclone separator of a system for quickly calculating the catalyst balance of a DMTO unit in an embodiment of the present invention;

[0044] Figure 3 Cross-sectional view of the primary cyclone separator of a system for quickly calculating the catalyst balance of a DMTO unit in an embodiment of the present invention;

[0045] Figure 4 Schematic diagram of the first embodiment of a method for quickly calculating the catalyst balance of a DMTO unit in an embodiment of the present invention. Detailed Description of the Invention

[0046] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0047] Those skilled in the art of the present technology can understand that unless specifically stated, the singular forms "a", "an", "" and "the" used herein may also include the plural forms. It should be further understood that the term "comprising" used in the specification of the present invention means the presence of features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0048] The present invention will be specifically described below with reference to the accompanying drawings. As Figure 1 shown, a catalyst balance system for quickly accounting the DMTO device, the balance system includes the following modules:

[0049] A catalyst balance module for the reactor system, which is used to calculate and establish a catalyst balance table for the reactor system according to the speed limit, cross-sectional area and catalyst dust concentration parameters of the reactor cyclone separator;

[0050] Specifically, the present embodiment further includes: calculating the catalyst balance table for the reactor system by using the mass flow algorithm, and the calculation process is as follows:

[0051] Obtain the flow velocity v of the catalyst in the cyclone separator, the cross-sectional area A of the cyclone separator, and the catalyst dust concentration C, then the mass flow rate Q of the catalyst m is calculated by the following formula:

[0052] Q m = v × A × C

[0053] Within a certain time interval Δt, calculate the mass of the catalyst entering and leaving the reactor according to the mass flow formula;

[0054] Establish a catalyst balance table for the reactor system according to the calculation results. The table includes the addition amount, loss amount, and remaining amount of the catalyst; among them, the addition amount M of the catalyst in is obtained by calculating the total mass of the catalyst entering the reactor, and the loss amount M loss is obtained by calculating the total mass of the catalyst leaving the reactor. The removal rate R of the catalyst remove The calculation formula is:

[0055]

[0056] Specifically, the parameters in the reactor system in the present embodiment at least include: the reaction gas volume at the inlet of the first-stage cyclone separator of the reactor (m3 / h), the reaction gas flow rate at the inlet of the secondary cyclone separator of the reactor (m 3 / h), the reaction gas flow rate at the outlet of the secondary cyclone separator of the reactor (m 3 / h), the reaction gas flow rate at the inlet of the tertiary cyclone separator of the reactor (m 3 / h), the reaction gas flow rate at the outlet of the quaternary cyclone separator of the reactor (m 3 / h), the reaction gas flow rate at the outlet of the tertiary cyclone separator of the reactor (m 3 / h), the actual amount of catalyst at the inlet of the tertiary cyclone separator of the reactor (kg / d), the actual amount of catalyst at the outlet of the tertiary cyclone separator of the reactor (kg / d), the catalyst removal amount of the tertiary cyclone separator of the reactor (kg / d), the catalyst removal rate of the tertiary cyclone separator of the reactor (%), the catalyst removal rate of the quaternary cyclone separator of the reactor (%), the catalyst removal amount of the quaternary cyclone separator of the reactor (kg / d), the reaction gas flow rate at the inlet of the quaternary cyclone filter of the reactor (m 3 / h), the catalyst concentration at the inlet of the quaternary cyclone filter of the reactor (g / m 3 ), the amount of catalyst at the inlet of the quaternary cyclone filter of the reactor (kg / d), the amount of catalyst at the inlet of the quaternary cyclone filter of the reactor (kg / d), the actual discharged amount of catalyst of the quaternary cyclone filter of the reactor (kg / d), the catalyst removal rate of the quaternary cyclone filter of the reactor (%), the amount of catalyst entering the water system (kg / d).

[0057] The catalyst balance module of the regenerator system is used to calculate and establish a catalyst balance table for the regenerator system according to the speed limit, cross-sectional area and catalyst dust concentration parameters of the regenerator cyclone separator;

[0058] Specifically, this embodiment also includes calculating the catalyst balance table of the regenerator system using the mass flow algorithm, and the calculation process is as follows:

[0059] Obtain the speed limit v of the regenerator cyclone separator reg , cross-sectional area A reg and catalyst dust concentration C reg , and calculate the mass flow rate of the catalyst in the regenerator

[0060]

[0061] Within the same time interval Δt, calculate the mass of the catalyst entering and leaving the regenerator; establish a catalyst balance table for the regenerator system, including the addition amount of the catalyst loss amount removal rate wherein and They are the total mass of the catalyst entering and leaving the regenerator respectively. The removal rate calculation formula is as follows:

[0062]

[0063] Specifically, in this embodiment, the regenerator system at least includes: the reaction gas volume at the inlet of the first-stage cyclone separator of the regenerator (m 3 / h), the reaction gas volume at the inlet of the second-stage cyclone separator of the regenerator (m 3 / h), the reaction gas volume at the outlet of the second-stage cyclone separator of the regenerator (m 3 / h), the reaction gas volume at the inlet of the third-stage cyclone separator of the regenerator (m 3 / h), the reaction gas volume at the outlet of the third-stage cyclone separator of the regenerator (m 3 / h), the actual amount of catalyst at the inlet of the third-stage cyclone separator of the regenerator (kg / d), the actual amount of catalyst at the outlet of the third-stage cyclone separator of the regenerator (kg / d), the catalyst removal amount of the third-stage cyclone separator of the regenerator (kg / d), the catalyst removal rate of the third-stage cyclone separator of the regenerator (%), and the catalyst content from the regenerator to the dust removal tower (kg / d).

[0064] The quick accounting technology model module is used to integrate the data of the catalyst balance sheets of the reactor and regenerator systems, establish a technical model for quickly accounting the catalyst balance of the DMTO device, and automatically extract data.

[0065] Specifically, in this embodiment, a technical model is also established by using a data fusion model and a linear regression prediction model:

[0066] Fuse the data of the catalyst balance sheets of the reactor system and the regenerator system, and use the weighted average method for data fusion. For the catalyst addition amount, the fused addition amount is calculated as:

[0067]

[0068] where ω1 and ω2 are weight coefficients, and ω1 + ω2 = 1.

[0069] Use the fused data to establish a linear regression prediction model for predicting the future catalyst balance situation of the DMTO device;

[0070] Let the independent variable x be time and the dependent variable y be the remaining amount of catalyst. The linear regression equation is:

[0071] y = a × x + b

[0072] where a and b are regression coefficients, which are solved by the least squares method.

[0073] Specifically, the parameters of the catalyst balance sheet in this embodiment at least include: the amount of catalyst lost from the reactor into the water system (kg / d), the amount of catalyst lost in the reactor (kg / d), the total amount of catalyst lost in the reactor-regeneration system (kg / d), the catalyst discharge from the waste catalyst storage tank of the third-stage cyclone in the reactor (kg / d), the catalyst discharge from the waste catalyst storage tank of the third-stage cyclone in the regenerator (kg / d), the total amount of catalyst loss in the reactor-regeneration system (kg / d), the growth rate of the total catalyst inventory in the reactor-regeneration system (kg / d), and the small feed amount (kg / d).

[0074] The beneficial effects are as follows: The catalyst balance module of the reactor system calculates the amount of catalyst added, lost, and removed in the reactor based on the speed limit, cross-sectional area, and catalyst dust concentration parameters of the reactor cyclone separator, and establishes a catalyst balance sheet for the reactor system; the catalyst balance module of the regenerator system calculates the amount of catalyst added, lost, and removed in the regenerator based on the speed limit, cross-sectional area, and catalyst dust concentration parameters of the regenerator cyclone separator, and establishes a catalyst balance sheet for the regenerator system; the fast calculation technology model module integrates the data of the catalyst balance sheets of the reactor and regenerator systems, establishes a technical model for quickly calculating the catalyst balance of the DMTO device, and automatically extracts data. It realizes the monitoring of the daily amount of catalyst added to the system, the daily catalyst loss, the daily amount of catalyst entering the water system, the catalyst removal rate of the reactor cyclone separator, and the catalyst removal rate of the regenerator cyclone separator in the catalyst system of the DMTO device. It can deeply monitor the efficient, stable, and optimized operation of the DMTO device. Using algorithms and models significantly improves the creativity and accuracy of the technical solution, providing strong support for the refined management of the DMTO device.

[0075] Please refer to Figure 2 , the parameter diagram of the first-stage cyclone separator in the reactor of a DMTO device catalyst balance monitoring system based on fast calculation.

[0076] Please refer to Figure 3 , the cross-sectional view of the first-stage cyclone separator in the reactor of a DMTO device catalyst balance monitoring system based on fast calculation.

[0077] The above introduces the embodiments of a DMTO device catalyst balance monitoring system based on fast calculation of the present invention. Please refer to Figure 4 , in a DMTO device catalyst balance monitoring method based on fast calculation, the DMTO device catalyst balance monitoring method includes the following steps:

[0078] 401. Through the catalyst balance module of the reactor system, calculate the amount of catalyst added, lost, and removed in the reactor based on the speed limit, cross-sectional area, and catalyst dust concentration parameters of the reactor cyclone separator, and establish a catalyst balance sheet for the reactor system;

[0079] 402. According to the speed limit, cross-sectional area and catalyst dust concentration parameters of the regenerator cyclone separator through the catalyst balance module of the regenerator system, calculate the addition amount, loss amount and removal rate of the catalyst in the regenerator, and establish a catalyst balance table for the regenerator system;

[0080] 403. Integrate the data of the catalyst balance tables of the reactor and regenerator systems through the fast accounting technology model module, establish a technical model for fast accounting of the catalyst balance of the DMTO unit, and automatically extract data.

[0081] Specifically, in this embodiment, a catalyst balance table for the reactor system is established: First, use high-precision sensors to obtain accurate data on the speed limit and cross-sectional area of the reactor cyclone separator of the DMTO unit in real time, and use a highly sensitive catalyst dust concentration detector to monitor the dust concentration parameters in real time. Then, input these data into the calculation module based on the fluid dynamics model and concentration-flow correlation algorithm for operation and processing. According to the calculation results of the model and algorithm, generate a "catalyst balance table for the reactor system", and the data acquisition system automatically extracts relevant data at set time intervals and stores them in the database. Establish a catalyst balance table for the regenerator system: Similarly, use high-precision sensors to obtain the speed limit and cross-sectional area data of the regenerator cyclone separator of the DMTO unit, and use a highly sensitive catalyst dust concentration detector to monitor the catalyst dust concentration parameters. Input these parameters into the calculation module based on the heat-mass transfer coupling model and dynamic mass balance algorithm to simulate the physical and chemical change processes of the catalyst in the regenerator and calculate the mass change of the catalyst. According to the calculation results, establish a "catalyst balance table for the regenerator system", and automatically extract data through the data acquisition module and store them in the database. Establish a fast accounting technology model: Import the data from the "catalyst balance table for the reactor system" and the "catalyst balance table for the regenerator system" stored in the database into the multi-source data fusion model based on artificial intelligence. This model uses deep learning algorithms to preprocess, extract features, perform correlation analysis and fusion processing on the data, and improve the accuracy and reliability of the model through continuous training and optimization. Finally, establish a "technical model for fast accounting of the catalyst balance of the DMTO unit", and the system automatically extracts data to provide real-time and accurate catalyst balance information for the operation of the DMTO unit, assisting operators in making decisions and adjustments.

[0082] The above has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all such changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A fast calculation system for catalyst balance of DMTO device, characterized in that: The balancing system includes the following modules: The reactor system catalyst balance module is used to calculate and establish the reactor system catalyst balance table according to the speed limit, cross-sectional area and catalyst dust concentration parameters of the reactor cyclone separator; The regenerator system catalyst balance module is used to calculate and establish the regenerator system catalyst balance table according to the speed limit, cross-sectional area and catalyst dust concentration parameters of the regenerator cyclone separator; The rapid calculation technology model module is used to integrate the data of the catalyst balance table of the reactor and regenerator system, establish a technical model for rapid calculation of the catalyst balance of the DMTO unit, and automatically extract data.

2. The fast calculation system for DMTO device catalyst balance according to claim 1, characterized in that: The catalyst balance table of the reactor system comprises: The catalyst balance table of the reactor system is calculated using a mass flow algorithm, and the calculation process is as follows: The catalyst mass flow rate Q is obtained by obtaining the flow velocity v of the catalyst in the cyclone separator, the cross-sectional area A of the cyclone separator, and the catalyst dust concentration C. m Calculated by the following formula: Q m =v×A×C In a certain time interval Δt, the mass of catalyst entering and leaving the reactor is calculated according to the mass flow formula; According to the calculation results, a catalyst balance table of the reactor system is established, which includes at least the amount of catalyst added, the amount of loss, and the amount of remaining catalyst; wherein the amount of catalyst added M in The loss M is obtained by calculating the total mass of the catalyst entering the reactor. loss The catalyst removal rate R is obtained by calculating the total mass of catalyst leaving the reactor. remove The calculation formula is:

3. The fast calculation system for DMTO device catalyst balance according to claim 1, characterized in that: The calculation parameters in the reactor system catalyst balance module include: The parameters in the reactor system include at least: the reaction gas volume at the inlet of the first-stage cyclone separator of the reactor, the reaction gas volume at the inlet of the second-stage cyclone separator of the reactor, the reaction gas volume at the outlet of the second-stage cyclone separator of the reactor, the reaction gas volume at the inlet of the third-stage cyclone separator of the reactor, the reaction gas volume at the outlet of the fourth-stage cyclone separator of the reactor, the reaction gas volume at the outlet of the third-stage cyclone separator of the reactor, the actual amount of catalyst at the inlet of the third-stage cyclone separator of the reactor, the actual amount of catalyst at the outlet of the third-stage cyclone separator of the reactor, the catalyst removal amount of the third-stage cyclone separator of the reactor, the catalyst removal rate of the third-stage cyclone separator of the reactor, the catalyst removal rate of the fourth-stage cyclone separator of the reactor, the catalyst removal amount of the fourth-stage cyclone separator of the reactor, the reaction gas volume at the inlet of the fourth-stage cyclone filter of the reactor, the catalyst concentration at the inlet of the fourth-stage cyclone filter of the reactor, the catalyst amount at the inlet of the fourth-stage cyclone filter of the reactor, the catalyst amount at the inlet of the fourth-stage cyclone filter of the reactor, the actual catalyst unloading amount of the fourth-stage cyclone filter of the reactor, the catalyst removal rate of the fourth-stage cyclone filter of the reactor, and the catalyst amount entering the water system.

4. The fast calculation system for DMTO device catalyst balance according to claim 1, characterized in that: The catalyst balance table of the regenerator system includes: The mass flow algorithm is used to calculate the catalyst balance table of the regenerator system. The calculation process is as follows: Get the speed limit v of the regenerator cyclone separator reg , cross-sectional area A reg and catalyst dust concentration C reg , calculate the mass flow rate of catalyst in the regenerator Calculate the mass of catalyst entering and leaving the regenerator within the same time interval Δt; establish a catalyst balance table for the regenerator system, including the amount of catalyst added Amount of loss Removal rate in and are the sum of the catalyst masses entering and leaving the regenerator, respectively. The removal rate is calculated as:

5. The fast calculation system for DMTO device catalyst balance according to claim 1, characterized in that: The regenerator system catalyst balance module calculates parameters including: The regenerator system at least includes: the reaction gas volume at the inlet of the first-stage cyclone separator of the regenerator, the reaction gas volume at the inlet of the second-stage cyclone separator of the regenerator, the reaction gas volume at the outlet of the second-stage cyclone separator of the regenerator, the reaction gas volume at the inlet of the third-stage cyclone separator of the regenerator, the reaction gas volume at the outlet of the third-stage cyclone separator of the regenerator, the actual amount of catalyst at the inlet of the third-stage cyclone separator of the regenerator, the actual amount of catalyst at the outlet of the third-stage cyclone separator of the regenerator, the catalyst removal amount of the third-stage cyclone separator of the regenerator, the catalyst removal rate of the third-stage cyclone separator of the regenerator, and the catalyst content from the regenerator to the dust removal tower.

6. The fast calculation system for DMTO device catalyst balance according to claim 1, characterized in that: The technical model includes: The technical model is established using the data fusion model and the linear regression prediction model: The data of the catalyst balance table of the reactor system and the catalyst balance table of the regenerator system are merged, and the data are merged using the weighted average method. For the amount of catalyst added, the amount added after fusion is Calculated as: Among them, ω1 and ω2 are weight coefficients, and ω1+ω2=1; The fused data were used to establish a linear regression prediction model to predict the future catalyst balance of the DMTO unit; Assuming the independent variable x is time and the dependent variable y is the remaining amount of catalyst, the linear regression equation is: y=a×x+b Among them, a and b are regression coefficients, which are solved by the least squares method.

7. The fast calculation system for DMTO device catalyst balance according to claim 1, characterized in that: The fast calculation technology model module integrates the data of the catalyst balance table of the reactor and regenerator system, establishes a technical model for fast calculation of the catalyst balance of the DMTO unit, and automatically extracts data, including: The parameters of the catalyst balance sheet include at least: the amount of catalyst loss in the reactor entering the water system, the amount of catalyst loss in the re-reactor, the total amount of catalyst loss in the reaction and regeneration system, the unloading of the reactor three-cyclone waste catalyst storage tank, the unloading of the regenerator three-cyclone waste catalyst storage tank, the total catalyst loss in the reaction and regeneration system, the increase in the total storage capacity of the reaction and regeneration system, and the small-scale feed amount.

8. A catalyst balance monitoring method for a DMTO device based on rapid calculation, characterized in that: The DMTO device catalyst balance monitoring method comprises the following steps: The catalyst balance module of the reactor system calculates the amount of catalyst added, the amount of catalyst lost and the removal rate in the reactor according to the speed limit, the cross-sectional area and the catalyst dust concentration parameters of the reactor cyclone separator, and establishes the catalyst balance table of the reactor system; The catalyst balance module of the regenerator system calculates the amount of catalyst added, the amount of catalyst lost and the removal rate in the regenerator according to the speed limit, the cross-sectional area and the catalyst dust concentration parameters of the regenerator cyclone separator, and establishes the catalyst balance table of the regenerator system; The data of the catalyst balance table of the reactor and regenerator system are integrated through the rapid calculation technical model module, a technical model for rapid calculation of the catalyst balance of the DMTO unit is established, and data is automatically extracted.

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