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Multi-objective nonlinear continuous tank diesel blending method based on pareto optimization criterion

A non-linear, multi-objective technology, applied in the petroleum industry, control/regulating systems, instruments, etc., can solve problems such as the inability to meet production equipment and production technical requirements, improve production technology and production management level, improve inventory management, Reduce the effect of retuning

Inactive Publication Date: 2015-10-28
EAST CHINA UNIV OF SCI & TECH
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  • Claims
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Problems solved by technology

However, the traditional multi-objective optimization method converts multiple objectives into a series of single-objective optimization problems in various ways, such as subjectively evaluating which objective is important to optimize which objective separately; or assigning a value to each objective according to subjective linear weights so that The method of transforming into an empirical single target can no longer meet the requirements of existing production equipment and production technology

Method used

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  • Multi-objective nonlinear continuous tank diesel blending method based on pareto optimization criterion
  • Multi-objective nonlinear continuous tank diesel blending method based on pareto optimization criterion
  • Multi-objective nonlinear continuous tank diesel blending method based on pareto optimization criterion

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Embodiment

[0072] This example is the actual production process of diesel blending of 0# vehicle diesel and 0# light diesel on a certain day in an oil refinery.

[0073] Among them, the first-line, second-line and third-line products of the two sets of atmospheric and vacuum distillation units (CDU1, CDU2) directly participate in the final blending, and the first-line products of the unit CDU2 participate in the final blending; The ratio of top reduction and first-line products to other oil products enters two sets of hydrogenation units, and the diesel components after hydrotreatment enter into the final blending; the diesel components produced by a set of lubricating oil hydrogenation units enter into the final product blending ( See CN1912072A and AIChE J.2013,59(4):1160-1174 for details).

[0074] About the production process of real oil refinery diesel oil, its process flow model please see in the specification sheet accompanying drawing of CN1912072A figure 1 .

[0075] The total...

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Abstract

The invention relates to a diesel blending method and in particular relates to a Pareto optimization criterion-based multi-target non-linear continuous tank type diesel blending method. The method comprises the steps of (1) establishing a multi-target non-linear mathematic model based on a related linear and non-linear relationship between the real-time flow and the flow of each component which forms the finished product diesel as well as a linear and non-linear relationship between each component and the real-time quality attribute of the finished product diesel; (2) respectively inputting the oil refining rate of crude oil, the real-time flow data of each lateral line and the real-time quality data of each component into the multi-target non-linear mathematic model established in the step (1), and performing evolutionary algorithm-based evaluation by adopting the Pareto optimization criterion to obtain the real-time flow data of each component which forms the finished product diesel; (3) blending the finished product diesel according to the real-time flow data, obtained in the step (2), of each component which forms the finished product diesel.

Description

technical field [0001] The invention relates to a diesel blending method, in particular to a multi-objective nonlinear continuous tank type diesel blending method based on Pareto optimization criterion. Background technique [0002] Diesel blending is one of the most important production procedures in the process of producing diesel in oil refining enterprises. The present invention is aimed at prior art (Cao C, Gu X, Xin Z. (Cao Cuiwen, Gu Xingsheng, Xin Zhong) -horizon Online Scheduling Model for Diesel Production of a Real-world Refinery.AIChE J.2013,59(4):1160-1174; Chinese Invention Patent: "Nonlinear Continuous Tank Diesel Scheduling Method", CN1912072A) in continuous diesel In the tank blending production process, multiple different blending objectives are considered before the actual blending production, and multiple groups of optimized blending schemes (or formulas) are determined for blending production selection and use, so as to adapt to various differences in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04C10L1/04
Inventor 曹萃文顾幸生高敏李晓楠阚明生陈孟文康永波于腾
Owner EAST CHINA UNIV OF SCI & TECH
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