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A molecular-level base oil blending optimization method

An optimization method and base oil technology, applied in base materials, analytical materials, petroleum industry, etc., can solve the problems of excessive property margin, reducing the time to determine the blending formula, and property indicators that cannot be satisfied at the same time, achieving high accuracy, Maximize and realize the effect of production profit

Active Publication Date: 2020-12-29
SYSPETRO TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0007] In order to overcome the above disadvantages, the present invention aims to provide a molecular-level base oil blending optimization method. The present invention uses a molecular-level physical property model to calculate the properties of base oil components and products. Compared with traditional empirical formulas and other methods , which effectively improves the accuracy of property prediction. At the same time, it improves the situation that multiple property indicators cannot be satisfied at the same time or the property margin is too large during blending, realizes precise control of product quality and production cost, and effectively improves the economic benefits of blended production; It avoids a lot of experimental work required by traditional methods, saves manpower and material resources, and greatly reduces the time required to determine the blending formula

Method used

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  • A molecular-level base oil blending optimization method
  • A molecular-level base oil blending optimization method
  • A molecular-level base oil blending optimization method

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Experimental program
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Embodiment

[0038] Example: as figure 1 As shown, a molecular-grade base oil blending optimization method includes the following steps:

[0039] (1) According to the actual situation of base oil blending in a lubricating oil factory, establish a total base oil molecular library, including 1425 molecules. Among them, there are 381 saturated hydrocarbon molecules, 506 aromatic hydrocarbon molecules, 273 sulfur-containing molecules, 175 nitrogen-containing molecules, and 90 oxygen-containing molecules.

[0040] (2) Combined with the published literature and the property prediction function, the molecular properties of 1425 molecules were obtained, and a single-molecule property library was formed.

[0041] (3) For the three lubricating oil base oil components used in the production of the lubricating oil plant, the types are divided according to the two dimensions of crude oil type and processing technology. The classification results of oil base oil types are shown in Table 1;

[0042] ...

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Abstract

The invention relates to a molecular-level base oil blending optimization method. According to the molecular-level base oil blending optimization method, a molecular-level physical property model is used for calculating base oil components and product property. Compared with methods such as traditional empirical formula, the molecular-level base oil blending optimization method has advantages of effectively improving accuracy in property predicting, and furthermore changing a condition of incapability of simultaneously satisfying multiple property indexes or overhigh property margin in blending, realizing accurate control to product quality and production cost, effectively improving economic benefit in blending production, preventing a large amount of experiment working required in a traditional method, saving manpower and material resources and greatly reducing time required in determining a blending formula.

Description

technical field [0001] The invention relates to the technical field of petroleum refining and petrochemical production, in particular to a blending and optimization method for molecular-grade base oil. Background technique [0002] The composition of finished lubricating oil includes base oil and a certain amount of additives. Among them, base oil is the main component of lubricating oil, which determines the properties of finished lubricating oil to a large extent. Due to the poor quality of raw oil, the limitation of processing technology, and the increase of lubricating oil index requirements, the base oil from a single source often cannot well meet the property requirements specified in the standard. To reduce the production cost of lubricating oil, different base oils are usually blended in production to meet the factory quality indicators. [0003] At present, the determination of base oil production blend formulations requires a lot of experimental work. The laborat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G16C10/00C10M105/00G01N9/00G01N11/00G01N25/00G01N25/02G01N25/04G01N25/52G01N33/28
Inventor 何恺源李越
Owner SYSPETRO TECH CO LTD
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