A multi-objective crude oil purchase optimization method

An optimization method and multi-objective technology, applied in the field of multi-objective crude oil purchase optimization, can solve problems such as high cost and large deviation of properties

Active Publication Date: 2021-07-27
汉谷云智(武汉)科技有限公司
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  • Abstract
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Problems solved by technology

[0005] Aiming at the technical problems existing in the prior art that crude oil is mixed in traditional oil refining and has a large deviation from the properties of the target crude oil and high cost, the present invention provides a multi-target crude oil selection optimization method, which can make the properties of the mixed crude oil consistent with the target crude oil The nature of the deviation is small and the purchase cost is reduced

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  • A multi-objective crude oil purchase optimization method
  • A multi-objective crude oil purchase optimization method
  • A multi-objective crude oil purchase optimization method

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specific Embodiment

[0076] In this example, 8 kinds of crude oil are set to participate in the mixing, and 7 target properties are selected, namely density, sulfur, nitrogen, acid value, nickel, viscosity and pour point. The property P of the given target crude oil obj =[1.11,0.17,0.5,14.45,0.879,97.12,43.2] and the price C of buying crude oil i =[105.46,103.37,102.67,105.46,102.57,14073,.113.73,109.07] (unit: USD / barrel)

[0077] The evaluation data of 8 crude oils are selected from the crude oil evaluation database, and then 7 different property data of the target crude oils corresponding to these 8 crude oils are screened out. The crude oil to be selected is numbered sequentially according to Y01, Y02, ..., Y08, and the rand function in the matlab software is used to generate n random numbers between 0 and 1, where n is the number of crude oils; The randi function generates 3 to 5 random variables of 0-1 integers whose value is 1 and other values ​​are 0; the position of 1 in the 0-1 integer...

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Abstract

The invention discloses a multi-objective crude oil selection optimization method, which includes the following steps: step a, establishing a calculation model of crude oil mixing properties, the crude oil mixing properties include linear mixing rules and nonlinear mixing rules, wherein the linear mixing rules satisfy the following formula: The linear mixing rule satisfies the following formula: step b, normalization of crude oil ratio; step c, establish a multi-objective crude oil purchase optimization mathematical model; step d, according to the multi-objective crude oil purchase optimization model established in step c, through optimization After the algorithm is optimized and calculated, the best ratio of mixed crude oil can be obtained. The multi-objective crude oil purchase optimization method of the present invention establishes a multi-objective crude oil purchase optimization model on the basis of the crude oil mixing calculation model and the normalization of the mixed oil ratio, and uses the multi-objective queuing competition algorithm based on non-dominated sorting to perform optimization calculations , to obtain the blended crude oil ratio that minimizes the deviation between the blended properties and the target crude oil properties, and minimizes the crude oil purchase cost.

Description

technical field [0001] The invention belongs to the technical field of petroleum refining, and in particular relates to a multi-objective crude oil purchase optimization method, which is used to optimize and calculate the mixing ratio of multi-component crude oil, so that the deviation between the properties of the mixed crude oil and the target crude oil is small and the purchase price is reduced. Cost optimization calculation method. Background technique [0002] As the types of crude oil processed by refineries continue to increase, and different crude oils have different properties and prices, how to use them rationally is a key problem that must be solved first. In order to adapt to the variety, quantity, nature of crude oil, and changes in the product market, the refinery needs to mix the processed crude oil. Mixing can not only give full play to the potential of the existing equipment, reduce the corrosion of the equipment, make the product quality complement each ot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q30/02G06Q50/04
CPCG06Q10/04G06Q30/0203G06Q30/0206G06Q50/04Y02P90/30
Inventor 鄢烈祥王佩史彬
Owner 汉谷云智(武汉)科技有限公司
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