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 reducing the time for determining the blending formula, unable to meet the property indicators at the same time, and excessive property margins, etc. Realize the effect of production profit and good applicability

Active Publication Date: 2019-06-28
SYSPETRO TECH CO LTD
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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 si

Method used

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  • Molecular-level base oil blending optimization method
  • Molecular-level base oil blending optimization method
  • Molecular-level base oil blending optimization method

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Embodiment

[0038] Example: such as figure 1 As shown, a molecular-level 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, a total molecular library of base oil was established, 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) Combining the public literature and property prediction functions, the molecular properties of 1425 molecules were obtained to form a single-molecule property library.

[0041] (3) For the three types of lubricating base oil components used in the production of the lubricating oil factory, the categories are classified 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; ...

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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 fields of petroleum refining and petrochemical production, in particular to a molecular-level base oil blending optimization method. 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 material oil, the limitation of processing technology, and the increase of lubricating oil index requirements, the base oil from a single source often cannot meet the property requirements specified in the standard. In order to improve the property index of finished lubricating oil and reduce the amount of additives, To reduce the cost of lubricating oil production, different base oils are usually blended in production to meet the factory quality indicators. [0003] At present, the deter...

Claims

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Application Information

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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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