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Production of naphthenic lube oil and base oil

A naphthenic lubricating oil and production method technology, which are applied in the petroleum industry, hydrocarbon oil treatment, hydrotreating process and other directions, can solve the problems of low yield and the like, and achieve the effects of increasing yield and improving oxidation stability

Active Publication Date: 2007-06-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the invention is to provide a new method for producing naphthenic lubricating oil base oils with higher yield and better product quality for the disadvantages of low yield in the prior art

Method used

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  • Production of naphthenic lube oil and base oil

Examples

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Comparison scheme
Effect test

example 1

[0038] This example processes naphthenic base oil according to the process shown in Figure 1 to produce naphthenic lubricating oil base oil. Naphthenic feedstock oil, hydrotreating reaction conditions, and solvent refining operating conditions are the same as in Comparative Example 1. However, the raw material oil is a mixed oil of raw material oil 1 and furfural refined extracted oil (derived from comparative example 1), wherein the furfural refined extracted oil accounts for 15% of the total weight of the raw material oil. The product oil properties are listed in Table 3. The properties of the product oil listed in Table 3 show that the product oil obtained by the method of the present invention can not only be used as ordinary transformer oil, but also meet the quality requirements of ultra-high voltage transformer oil.

[0039] Table 1

[0040] Raw oil 1

Raw oil 2

Density(20℃) / g·cm -3

0.9078

0.9430

Kinematic viscosity / mm 2 ·s ...

example 2

[0048] This example processes naphthenic oil according to the process shown in Figure 2 to produce naphthenic lubricating oil base oil. Naphthenic oil, hydrotreating reaction conditions, solvent refining operating conditions, catalytic dewaxing reaction and hydrofining reaction conditions are the same as Comparative Example 2, and the difference is that feedstock oil is feedstock oil 2 and furfural refining extraction oil (derived from the refining of furfural The mixed oil of ratio 2), wherein the furfural refined extraction oil accounts for 10% of the total weight of the raw material oil. The product oil properties are listed in Table 5. The properties of the product oil listed in Table 5 show that the product obtained by the method of the present invention fully meets the standard of hermetic refrigerating machine oil and can be used as hermetic refrigerating machine oil.

[0049] Table 4

[0050] Hydrotreating process conditions

Hydrogen partial pressure / MPa ...

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Abstract

Production of naphthenic lube oil and base oil is carried out by feeding for naphthenic base oil, hydrogenation treating, contacting with catalyst, separating to obtain hydrogenated oil in hydrogenation reactive area, contacting it with solvent in solvent refining area, extracting partial or solvent as feed and mixing it with naphthenic base oil. It has more yield and better performance.

Description

technical field [0001] The invention relates to a production method of lubricating oil base oil. More specifically, it relates to a method for producing naphthenic base lubricating oil. Background technique [0002] According to the classification of crude oil, the crude oil with characteristic factor K value<11.5 belongs to naphthenic oil (Hou Xianglin, China Oil Refining Technology, China Petrochemical Press, 1991, 8-9). Due to the low wax content, high cyclic hydrocarbon content and low freezing point of naphthenic oil, it is often used as raw material for the production of low-condensation lubricating base oil (usually refers to distillate oil ≥ 250 ° C), such as transformer oil, insulating oil, Refrigeration oil, etc. (Shui Tiande, Modern Lubricating Oil Production Technology, China Petrochemical Press, 1997, 405-406) [0003] In the prior art, naphthenic oil can be processed by various techniques to produce naphthenic lubricating oil base oil. For example, transf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/04
Inventor 刘广元祖德光康小洪郭庆洲王奎王鲁强吴瑕玉
Owner CHINA PETROLEUM & CHEM CORP
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