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PAO4 base oil and lubricating oil used for jet engine

A jet engine and lubricating oil technology, applied in the field of lubricating oil, can solve problems such as poor oxidation stability, and achieve stable lubrication effect and excellent oxidation stability.

Active Publication Date: 2017-07-25
安徽欧勒奋生物科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although PAO-based base oils can improve the problem of mineral oils, lubricating oils formulated with ordinary PAO base oils often have the problem of poor oxidation stability.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A. Synthesis of PAO4:

[0036] Put 1400g of 1-decene (>99%) into the polymerization kettle, add 300g of aluminum trichloride in batches, heat the reaction temperature to 90°C, and polymerize for 3 hours to obtain a crude polydecene product.

[0037] Part of the catalyst was removed by filtration, washed with 40% sodium hydroxide aqueous solution, and the aluminum trichloride was neutralized until the pH of the solution was neutral, and the remaining was put into a rotary evaporator for vacuum distillation.

[0038] The gas-liquid separation obtains oligomers and unreacted 1-decene compound monomers, and the unreacted 1-decene compound monomers re-enter the polymerization tank for polymerization. The vacuum distillation product is pressurized and mixed with hydrogen, and directly enters the device equipped with a hydrogenation catalyst. The feed temperature is 160°C, the hydrogen partial pressure is 9MPa, and the volume space velocity is about 0.5h -1 , The volume ratio...

Embodiment 2

[0042] A. Synthesis of PAO4:

[0043] Put 1600g of 1-decene (>99%) into the polymerization kettle, add 300g of aluminum trichloride in batches, heat the reaction temperature to 100°C, and polymerize for 4 hours to obtain a crude polydecene product.

[0044] Part of the catalyst was removed by filtration, washed with 40% sodium hydroxide aqueous solution, and the aluminum trichloride was neutralized until the pH of the solution was neutral, and the remaining was put into a rotary evaporator for vacuum distillation.

[0045] The gas-liquid separation obtains oligomers and unreacted 1-decene compound monomers, and the unreacted 1-decene compound monomers re-enter the polymerization tank for polymerization. The vacuum distillation product is pressurized and mixed with hydrogen, and directly enters the device equipped with a hydrogenation catalyst. The feed temperature is 160°C, the hydrogen partial pressure is 9MPa, and the volume space velocity is about 0.5h -1 , The volume rati...

Embodiment 3

[0049] A. Synthesis of PAO base oil:

[0050]Put 1200g of 1-decene (>99%) into the polymerization kettle, add 300g of aluminum trichloride in batches, heat the reaction temperature to 90°C, and polymerize for 3 hours to obtain a crude polydecene product.

[0051] Part of the catalyst was removed by filtration, washed with 40% sodium hydroxide aqueous solution, and the aluminum trichloride was neutralized until the pH of the solution was neutral, and the remaining was put into a rotary evaporator for vacuum distillation.

[0052] The gas-liquid separation obtains oligomers and unreacted 1-decene compound monomers, and the unreacted 1-decene compound monomers re-enter the polymerization tank for polymerization. The vacuum distillation product is pressurized and mixed with hydrogen, and directly enters the device equipped with a hydrogenation catalyst. The feed temperature is 160°C, the hydrogen partial pressure is 9MPa, and the volume space velocity is about 0.5h -1 , The volum...

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PUM

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Abstract

The invention provides lubricating oil used for a jet engine. The lubricating oil is characterized by being prepared from the following components in percentage by mass: 80 to 95% of low-viscosity PAO base oil, 5 to 15% of a polyester, and the balance of an antioxidant, wherein the polyester is selected from one or more of polyatomic acid with a carbon atom number greater than 6, monohydric or polyhydric alcohol with a carbon atom number greater than 4, and polyester which is prepared by esterification reaction. The PAO base oil prepared by a special process selected by the invention is combined with other adjuvants to prepare the lubricating oil used for the jet engine specially, and the oxidation stability of the lubricating oil is excellent.

Description

technical field [0001] The invention relates to the field of lubricating oil, in particular to a lubricating oil for a jet engine and a preparation method thereof. [0002] technical background [0003] Jet engine lubricating oil can lubricate and reduce friction, assist cooling and cooling, seal and prevent leakage, prevent rust and corrosion, shock absorption and buffering, etc. for the engine. Such parts often move fast and have a poor environment, and the working temperature can reach above 400°C. Under such harsh working conditions, only qualified lubricating oil can reduce the wear of engine parts and prolong the service life. [0004] Existing jet engine lubricating oils are often formulated with mineral oil as the base oil combined with other components. The base oil extracted from crude oil contains a large number of chemical substances. Most of these mixtures are aromatic compounds and paraffin carbon compounds (components in lubricating oil whose viscosity change...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M105/04C10N20/02C10N30/06C10N30/10C10N40/25
CPCC10M105/04C10M169/04C10M2203/0206C10M2207/282C10N2020/02C10N2030/06C10N2030/10C10N2040/25
Inventor 栾英豪戴力刘晨斌
Owner 安徽欧勒奋生物科技有限公司
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