Online multi-object crude oil blending optimization method

A multi-objective, crude oil technology, applied in the direction of control/regulation systems, instruments, adaptive control, etc., can solve problems such as inability to control attributes such as density, limit production levels, and inability to achieve trade-offs

Active Publication Date: 2019-05-17
EAST CHINA UNIV OF SCI & TECH
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Problems solved by technology

However, in the actual industry of crude oil blending, due to the limitation of the computing power of traditional algorithms, most refineries can only perform single-objective optimization while ignoring other objectives, so that they cannot achieve sufficient trade-offs
For example, when the blending cost is required to be the lowest, it is impossible to control the properties such

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  • Online multi-object crude oil blending optimization method
  • Online multi-object crude oil blending optimization method
  • Online multi-object crude oil blending optimization method

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Embodiment Construction

[0075] After extensive and in-depth research, the inventor proposed a multi-objective optimization method for crude oil blending in oil refining enterprises, aiming at the problem that the traditional algorithm can only perform single-objective optimization due to the capacity limitation of the traditional algorithm, and cannot fully balance each optimization goal. The objective online optimization method, and the adaptive differential evolution optimization method based on non-dominated sorting is used to optimize the solution.

[0076] For example, the inventor considered the lowest blending cost, the smallest deviation between the density of the blended crude oil and the target density, and at the same time considered the constraints of various crude oil quality indicators (sulfur content, acid value, naphtha yield, nitrogen content, etc.), various The stock limit of component oil, the formulation limit and flow limit of each component oil, etc. Under the condition of satis...

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Abstract

The invention discloses an online multi-object crude oil blending optimization method. The method comprises the steps of: firstly, performing blending task parameter initialization; secondly, settingan optimization period and a target function, and setting the upper limit and the lower limit of each attribute index of blended crude oil, the oil reserve of each component, the maximum flow of eachrefining line component coil and the unit quality cost of each component oil; then, according to the predetermined optimization period, obtaining each blending component and tank bottom oil attributedata, and updating a tank bottom oil gauge, the component oil reserve and the blending remaining time of the batch; and finally, solving the optimal formula of each blending component in the current optimization period, and sending to a blending control system to execute.

Description

technical field [0001] The invention relates to the field of crude oil processing in oil refining enterprises, in particular to an optimization method for crude oil blending. Background technique [0002] In order to maximize the comprehensive benefits, it is often necessary to weigh various optimization objectives in the process of crude oil blending. However, in the actual industry of crude oil blending, due to the limitation of the computing power of traditional algorithms, most refineries can only perform single-objective optimization while ignoring other objectives, so that they cannot achieve sufficient trade-offs. For example, when the blending cost is required to be the lowest, properties such as density cannot be controlled to a certain target value, and only within a certain range, which sacrifices the controllability of the production process and limits the further improvement of the production level and product quality. However, when making requirements on attri...

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Application Information

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IPC IPC(8): G05B13/04
CPCG05B13/04
Inventor 钱锋钟伟民何仁初杜文莉
Owner EAST CHINA UNIV OF SCI & TECH
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