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A kind of air compressor oil and preparation method thereof

An air compressor oil and base oil technology, applied in the petroleum industry, lubricating compositions, etc., can solve the problems of poor high-temperature oxidation stability, short service life, high carbon deposition tendency, etc., and achieve good high-temperature oxidation resistance , cost saving, low carbon deposition tendency effect

Active Publication Date: 2020-05-08
上海中孚油品集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an air compressor oil. The air compressor oil described in the prior art should solve the problem of poor high temperature oxidation stability of the air compressor oil in the prior art, short service life, high The carbon deposition tendency problem and the technical problem of high operating cost

Method used

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  • A kind of air compressor oil and preparation method thereof
  • A kind of air compressor oil and preparation method thereof
  • A kind of air compressor oil and preparation method thereof

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Effect test

Embodiment 1

[0025] The present invention provides an air compressor oil, which is composed of modified vegetable oil, PAO as base oil, and antioxidant, rust inhibitor, antiwear agent, detergent, dispersant and defoamer. The mass percentage of the modified vegetable oil in the air compressor oil is 55%, and the modified vegetable oil is composed of rapeseed oil and peanut oil. The mass percentage of the rapeseed oil in the modified vegetable oil is 60%, and the mass percentage of the peanut oil in the modified vegetable oil is 40%. The hydrorefining process is carried out first. The reaction pressure of the middle reactor is 8MPa, the reaction temperature is 300°C, the total oil feed space velocity is 0.8 / h, and the reaction hydrogen-to-oil volume ratio is 700. The catalyst in the hydrorefining process is Ni-W / AL 2 O 3 , Followed by atmospheric and vacuum distillation, the vacuum distillation process is a residual pressure of 1 ~ 65mmHg, cut 300 ~ 460 ℃ atmospheric distillate oil to obtain h...

Embodiment 2

[0034] The present invention provides an air compressor oil, which is composed of modified vegetable oil, PAO as base oil and added with antioxidant, rust inhibitor, antiwear agent, detergent, dispersant and defoamer. The mass percentage of the modified vegetable oil in the air compressor oil is 51%, and the modified vegetable oil is a mixture of rapeseed oil, peanut oil and cottonseed oil. The mass percentage of the rapeseed oil in the modified vegetable oil is 50%, the mass percentage of the peanut oil in the modified vegetable oil is 30%, and the cottonseed oil is in the The mass percentage in the modified vegetable oil is 20%. The hydrogenation refining process is carried out first. During the hydrorefining process, the reaction pressure of the reactor is 10MPa, the reaction temperature is 250°C, the total oil inlet space velocity is 0.6 / h, and the reaction hydrogen oil volume The ratio is 650, and the catalyst in the hydrorefining process is Ni-Mo-Co / AL 2 O 3 , Followed by...

Embodiment 3

[0043] The present invention provides an air compressor oil, which is composed of modified vegetable oil, PAO as base oil and added with antioxidant, rust inhibitor, antiwear agent, detergent, dispersant and defoamer. The mass percentage of the modified vegetable oil in the air compressor oil is 50%, and the modified vegetable oil is mixed with rapeseed oil, peanut oil, cottonseed oil and olive oil. The mass percentage of the rapeseed oil in the modified vegetable oil is 40%, the mass percentage of the peanut oil in the modified vegetable oil is 20%, and the cottonseed oil is in the The mass percentage of the modified vegetable oil is 20%, and the mass percentage of the olive oil in the modified vegetable oil is 20%. Hydrorefining is carried out first. During the hydrorefining process, the reaction pressure of the reactor is 7MPa, the reaction temperature is 350°C, the total oil feed space velocity is 0.7 / h, and the reaction hydrogen-to-oil volume ratio is 650. The catalyst in...

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Abstract

Provided is air compressor oil. The air compressor oil is prepared from, by mass, 30%-40% of base oil, 1%-5% of an antioxidant, 1%-5% of a rust inhibitor, 1%-5% of an antiwear agent, 1%-2% of a clearing agent, 1%-2% of a dispersing agent and the balance modified vegetable oil, defoamer is added, and the concentration of the defoamer is 50-100 ppm of the sum of the mass of the modified vegetable oil, the base oil, the antioxidant, the rust inhibitor, the antiwear agent, the clearing agent and the dispersing agent. The invention further provides a preparation method of the air compressor oil. Accordingly, the open flash point can reach 270-300 DEG C, and the pour point is -40 DEG C or below.

Description

Technical field [0001] The invention relates to the field of chemical engineering, in particular to air compressor oil, in particular to an air compressor oil and a preparation method thereof. Background technique [0002] Air compressor oil refers to the lubrication of the moving parts of the cylinder and the exhaust valve of the air compressor during operation, so as to effectively protect the screw, bearing, gear and other parts, and through the oil circulation to cool the parts, prevent rust and It is a kind of oil that is used for cleaning and sealing the screw and shell at the same time. Because air compressors are always in an environment with high pressure, high temperature and condensed water, the air compressor oil should have excellent high temperature oxidation resistance, low carbon deposition tendency, excellent viscosity-temperature performance, good oil-water separation and Anti-rust performance. At present, air compressor oils are mainly divided into two catego...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N30/10C10N30/02C10N30/12C10N30/06C10N30/04
CPCC10M169/048C10M2203/045C10M2205/026C10M2207/026C10M2207/144C10M2207/16C10M2207/40C10M2211/08C10M2219/044C10M2223/04C10M2223/047C10N2010/02C10N2010/04C10N2030/02C10N2030/04C10N2030/06C10N2030/10C10N2030/12
Inventor 沈庆汪志刚
Owner 上海中孚油品集团有限公司
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