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Multi-objective real-time optimization method and system in delay coking process

A technology of delayed coking and optimization methods, applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as no multi-objective real-time optimization, and achieve significant economic benefits, strong search capabilities, and good optimization effects

Inactive Publication Date: 2017-05-31
WUHAN UNIV OF TECH
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a multi-objective real-time optimization method and system for the delayed coking process in view of the defect that there is no multi-objective real-time optimization in the prior art of the delayed coking process

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[0054] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0055] The multi-objective real-time optimization method for the delayed coking process of the embodiment of the present invention includes the following steps:

[0056] S1. Write a software interface to connect to the real-time database of the petrochemical plant, and obtain the production data of the delayed coking process in real time; use Visual studio2012 software and C# language to write the .dll file of the class library program of the real-time database interface of the delayed coking process of the petrochemical plant, and use NET.addAssembly in Matlab The function reads the .dll file, con...

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Abstract

The invention provides a multi-objective real-time optimization method and system in a delay coking process. The method comprises the steps that S1 the production data of the delay coking process are acquired in real time; S2 a delay coking process model is established and calibrated; S3 based on the optimized delay coking process model, a hybrid algorithm based on a multi-objective queuing competition algorithm and a non-dominated genetic algorithm is realized; S4 a number of optimization variables in the delay coking process are comprehensively selected, and raw material heat transfer final temperature and product yield are used as double optimization objectives for analog computation to acquire the variation trend chart of double optimization objectives; and S5 a GUI interactive interface is written, the results of data reading, model establishing, algorithm optimization and the variation trend chart are displayed in real time to select an optimization variable corresponding to the optimum optimization objective in the variation trend chart. The algorithm provided by the invention has the advantages of good optimization effect, strong searching ability, energy saving, environmental protection, can effectively help a petrochemical plant to improve the production efficiency, and has significant economic benefits.

Description

technical field [0001] The invention relates to the field of petroleum refining, in particular to a multi-objective real-time optimization method and system for a delayed coking process. Background technique [0002] Delayed coking is one of the main means of decarbonization technology of refinery residual oil. The delayed coking process is divided into three parts: reaction, separation and absorption stabilization system. In the study of delayed coking fractionation, Trauth proposed five centralized kinetic models, that is, the coking products of vacuum residue were divided into coking rich gas, naphtha, coking diesel oil and other liquid phase products according to the physical form and distillation range curve. (such as naphtha, wax oil) and coke five categories. [0003] In terms of domestic research, Wang Chunhua and others used PRO / II software to conduct in-depth research on the simulation analysis method of the fractionation tower system of the delayed coking unit. ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCY02P80/10G05B13/042
Inventor 鄢烈祥郭聪史彬聂恩明黄辉
Owner WUHAN UNIV OF TECH
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