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Real-time optimization method and apparatus used for continuous reforming device

A reforming device and optimization method technology, applied in the field of data optimization, can solve problems such as affecting online real-time calculation and stability performance, sacrificing model extrapolation ability, and narrowing the scope of application

Active Publication Date: 2019-08-30
ZHEJIANG SUPCON SOFTWARE
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  • Claims
  • Application Information

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Problems solved by technology

However, most of the real-time optimization of the device depends on the strict steady-state mechanism model. Although the dynamic mechanism model based on complex material balance and energy balance equations can well characterize the physical characteristics of the continuous reformer, it is difficult to meet the actual on-site reforming feed Changes in raw material properties and uncertain operation disturbances often make it difficult to solve, or even fail to converge, which affects online real-time calculation and stability performance
On the other hand, in order to avoid this problem, there are also attempts to use historical data empirical models, which improve real-time performance and stability to a certain extent, but at the expense of model extrapolation capabilities, the actual scope of application is greatly narrowed

Method used

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  • Real-time optimization method and apparatus used for continuous reforming device

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Embodiment 1

[0063] In order to solve the defects of the prior art, such as the difficulty in solution caused by too much reliance on the strict steady-state mechanism model, this embodiment proposes a real-time optimization method for continuous reforming devices based on the combination of simplified mechanism and deep neural network model, specifically as figure 1 As shown, the real-time optimization method includes:

[0064] Step 1, establishing a real-time optimization model of the continuous reforming unit, establishing an objective optimization function and constraints in the process of solving the objective optimization function in the real-time optimization model;

[0065] Step 2: Obtain the initial parameters used to import the real-time optimization model of the continuous reforming unit from the near-infrared online analyzer and the database, process the initial parameters for validity, and perform data adjustment and model parameter estimation on the processed data Operation t...

Embodiment 2

[0119] This embodiment also proposes a real-time optimization device 2 for a continuous reformer, such as figure 2 As shown, the real-time optimization equipment includes:

[0120] The model building unit 21 is used to establish a real-time optimization model of the continuous reformer, and establish an objective optimization function and constraint conditions in the process of solving the objective optimization function in the real-time optimization model;

[0121] The data sorting unit 22 is used to obtain the initial parameters used to import the real-time optimization model of the continuous reforming device from the near-infrared on-line analyzer and the database, process the validity of the initial parameters, and perform data adjustment and processing on the processed data. The operation of model parameter estimation to obtain the data to be imported;

[0122] The parameter solving unit 23 is used to transmit the data to be imported to the real-time optimization model...

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Abstract

Embodiments of the invention provide a real-time optimization method and apparatus used for a continuous reforming device. The method specifically includes the following steps: establishing a real-time optimization model of the continuous reforming device, obtaining initial parameters for introducing the real-time optimization model of the continuous reforming device, and performing effective treatment on the initial parameters to obtain to-be-introduced data; transmitting the to-be-introduced data to the real-time optimization model of the continuous reforming device, solving a target optimization function within a range corresponding to a constraint condition, and determining an optimal device operation parameter corresponding to an optimal solution of a target function; and performing optimization based on a current control parameter of an optimal device control parameter to the continuous reforming device. Since advantages of a mechanism model and a data experience model are fullyperformed, a mixed model can reflect real physical characteristics of a process of the continuous reforming device, the model extrapolation capability is also improved, and real-time optimization solution efficiency and stability performance are improved.

Description

technical field [0001] The invention belongs to the field of data optimization, in particular to a real-time optimization method and equipment for a continuous reformer. Background technique [0002] Through the application of real-time optimization technology of petrochemical industry process, the comprehensive benefit of enterprises can be improved, which has become the consensus of domestic and foreign petrochemical and other process industry enterprises. The use of real-time optimization technology can reduce the repetitive labor of plant operators, and reduce the technical personnel who only determine the operating value based on design parameters and experience, and can not achieve the optimal operation. Response speed, which brings extremely considerable economic benefits. [0003] Process real-time optimization technology can monitor the operating status of process equipment at any time, and continuously adjust the operating point under the premise of satisfying all...

Claims

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Application Information

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IPC IPC(8): G05B13/04C10G35/04
CPCG05B13/042C10G35/04C10G2300/1044
Inventor 娄海川谢六磊李辉陈寿烽李达王贵宏吴玉成田甜
Owner ZHEJIANG SUPCON SOFTWARE
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