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White oil type ethylene compressor oil composition and preparation method thereof

A technology for compressor oil and composition, applied in the field of lubricating oil, can solve the problems of unstable peroxides, affecting the polymerization process of ethylene, etc., and achieve the effects of low anti-rust performance, mild conditions and simple process

Pending Publication Date: 2022-06-21
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, ethylene compressor oil is mainly divided into synthetic ethylene compressor oil and mineral ethylene compressor oil, of which synthetic ethylene compressor oil is mainly based on polyether synthetic oil, which has excellent resistance to light hydrocarbon dilution, viscosity Temperature, lubricity, thermo-oxidative stability, rust resistance and other excellent properties, in comparison, polyether base oil has hygroscopicity, and itself is unstable and prone to produce peroxide, which affects the polymerization process of ethylene

Method used

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  • White oil type ethylene compressor oil composition and preparation method thereof
  • White oil type ethylene compressor oil composition and preparation method thereof

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preparation example Construction

[0038] The present invention also provides a preparation method of the white oil type ethylene compressor oil composition described in the above technical scheme, comprising the following steps:

[0039] After the temperature of the white oil type base oil is increased, a tackifier, a pour point depressant, an antioxidant and a rust inhibitor are added, mixed, and filtered to obtain a white oil type ethylene compressor oil composition.

[0040] In the present invention, the white oil type base oil, tackifier, pour point depressant, antioxidant and rust inhibitor are the same as those in the above technical solutions, and will not be repeated here.

[0041] In the present invention, the temperature of the temperature increase is preferably 45°C to 55°C, more preferably 50°C; it is realized by a three-necked flask with temperature control well known to those skilled in the art.

[0042] In the present invention, the mixing method is preferably stirring; the stirring temperature ...

Embodiment 1

[0052] Take 88 parts by weight of white oil type base oil and place it in a three-necked flask with temperature control, after warming up to 50 ℃, add 12 parts by weight of polyisobutylene tackifier diluent, 0.2 parts by weight of polymethacrylate pour point depressant agent, 1 weight part of phenolic antioxidant, 2 weight parts of fatty acid and its derivative compound rust inhibitor, continue to heat up to 60°C, stir for 2 hours, and obtain a white oil type ethylene compressor oil composition after 3-stage filtration.

Embodiment 2

[0054] Take 85 parts by weight of white oil type base oil and place it in a three-necked flask with temperature control, after warming up to 50 ° C, add 15 parts by weight of polyisobutylene tackifier diluent, 0.05 parts by weight of polymethacrylate pour point depressant agent, 1.5 parts by weight of phenolic antioxidant, 3 parts by weight of fatty acid and its derivative compound rust inhibitor, continue to heat up to 65 ° C, stir for 2.5 h, and obtain a white oil type ethylene compressor oil composition after 3-stage filtration .

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Abstract

The invention provides a white oil type ethylene compressor oil composition. The white oil type ethylene compressor oil composition is prepared from the following raw materials in parts by weight: 70-90 parts of white oil type base oil; 10 parts by weight to 30 parts by weight of a tackifier; 0.05 to 0.5 part by weight of a pour point depressant; 0.5 to 3 parts by weight of an antioxidant; 0.5 to 5 parts by weight of an antirust agent; the white oil type base oil is deeply refined mineral type white oil, and the sulfur content is less than 10mg / kg. Compared with the prior art, the white oil type ethylene compressor oil composition provided by the invention adopts the components with specific contents, can realize relatively good overall interaction, and has excellent lubricity, thermal oxidation stability and anti-rust performance and relatively low carbon deposition tendency at the same time.

Description

technical field [0001] The invention relates to the technical field of lubricating oils, and more particularly, to a white oil type ethylene compressor oil composition and a preparation method thereof. Background technique [0002] Plastics are polymer compounds that are polymerized from monomers as raw materials through polyaddition or polycondensation reactions. Take polyethylene resin products as an example. Most of the enterprises producing polyethylene resin products in my country are refining and chemical enterprises, and their production equipment is Ultra-high pressure ethylene compressors (equipment manufacturers are Xinbilon and Buka), with the increase in demand for ethylene resin products and the development of compressor technology, ethylene compressors are moving towards more cylinders, larger design power, and larger exhaust. With the development of pressure and greater production capacity, the current exhaust temperature can reach 110℃, and the exhaust pressure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N40/30C10N30/06C10N30/10C10N30/12
CPCC10M169/047C10M2203/1006C10M2205/026C10M2209/084C10N2040/30C10N2030/06C10N2030/10C10N2030/12
Inventor 陆海魏文红赵玉贞吴旭东陶菲
Owner CHINA PETROLEUM & CHEM CORP
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