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Refrigerant oil composition and application thereof

A technology of refrigeration oil and composition, applied in the field of lubricating oil, can solve the problems of low viscosity index, poor anti-wear performance, inappropriate anti-wear performance and the like

Active Publication Date: 2016-11-23
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] CN1054154C discloses a kind of refrigerating machine oil composition, contains viscosity 10-150mm 2 / s soft wax cracking C5-C18 mixed α olefin polymer oil, which can also add epoxy compound stabilizer, phosphate ester lubricant and phenolic antioxidant, the oil has good miscibility with hydrochlorofluorocarbons, The flocculation point is low, but there are problems of low viscosity index, poor low-temperature fluidity, and poor high-temperature thermochemical stability of R22 refrigerant
However, the composition has poor anti-wear performance, and is not suitable for application places of refrigerating machine oils that require high anti-wear performance.

Method used

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  • Refrigerant oil composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Use 55% naphthenic high-pressure hydrogenation to reduce second-line mineral oil (from Karamay Petrochemical Company), add 15% boiling point above 250 ° C, 100 ° C kinematic viscosity 7.42mm 2 / s, pour point -42°C, alkylbenzene synthetic lubricating oil base oil with a viscosity index of 105 (from commercially available Dopp Chemical products), and then add 30% of the flash point above 200°C, and the kinematic viscosity at 100°C is 8.51mm 2 / s, pour point -56°C, oil-soluble polyether base oil (from commercially available Dow Chemical products) with a viscosity index of 175, adjusted to a kinematic viscosity of 45.65mm at 40°C 2 / s base oil a.

Embodiment 2

[0043] Use 45% naphthenic high-pressure hydrogenation to reduce the third-line mineral oil (from Karamay Petrochemical Company), add 15% boiling point above 250 ° C, 100 ° C kinematic viscosity 7.42mm 2 / s, pour point -42°C, alkylbenzene synthetic lubricating oil base oil with a viscosity index of 105 (from commercially available Dopp Chemical products), and then add 40% of the flash point above 200°C, and the kinematic viscosity at 100°C is 8.51mm 2 / s, pour point -56°C, oil-soluble polyether base oil (from commercially available Dow Chemical products) with a viscosity index of 175, adjusted to a kinematic viscosity of 56.32mm at 40°C 2 / s base oil b.

Embodiment 3

[0045] Use 60% naphthenic high-pressure hydrogenation to reduce the third-line mineral oil (from Karamay Petrochemical Company), add 20% with a boiling point above 250°C, and a kinematic viscosity of 7.42mm at 100°C 2 / s, pour point -42°C, alkylbenzene synthetic lubricating oil base oil with a viscosity index of 105 (from commercially available Dopp Chemical products), and then add 20% flash point above 200°C, 100°C kinematic viscosity 8.51mm 2 / s, pour point -56°C, viscosity index 175 oil-soluble polyether base oil (from commercially available Dow Chemical products), adjusted to 40°C kinematic viscosity 63.15mm 2 / s base oil c.

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Abstract

The invention provides a refrigerant oil composition and application thereof. The refrigerant oil composition comprises, on the basis of the weight of base oil, (1) 15 to 40 wt% of alkyl benzene synthetic lubricant base oil, (2) 15 to 40 wt% of oil-soluble polyether base oil, i.e., OSP base oil, (3) 20 to 70 wt% of high-pressure hydrogenation cycloalkyl mineral lubricant base oil, and (4) an additive, wherein the high-pressure hydrogenation cycloalkyl mineral lubricant base oil is prepared by using a high-pressure tandem all-hydrogen process consisting of hydrodemetallization, hydrotreatment, hydrodewaxing and hydrofinishing. The refrigerant oil provided by the invention has good intersolubility with hydrochlorofluorocarbons (HCFCs, such as R22), a low flocculation point and thermo-chemical stability; the refrigerant oil is especially applicable as refrigerant oil with HCFCs as refrigerants and also applicable as refrigerant oil with chlorofluorocarbons as refrigerants; and the refrigerant oil can prolong an oil change period and improve energy conservation performance, and has excellent abrasion resistance.

Description

technical field [0001] The invention belongs to the technical field of lubricating oil, and relates to a refrigerating machine oil composition for compressor units. Background technique [0002] The continuous promotion of national environmental protection regulations has caused major changes in the types of refrigerants used in the refrigeration industry. The use of chlorofluorocarbons (CFCs) refrigerants is strictly restricted, and hydrochlorofluorocarbons (HCFCs, such as R22 ), hydrofluorocarbons (HFCs, such as R134a), hydrocarbons (HCs, such as R600a), ammonia (such as R717) and carbon dioxide refrigerants have been used in the refrigeration industry. [0003] The development of refrigeration compressors is closely related to the development of petrochemical, refrigeration and other industries. Large-scale refrigeration compressor units are divided in structure, mainly semi-closed and open. Refrigerator compressors and air conditioner compressors are mainly fully encl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C09K5/04C10N40/30C10N20/02
CPCY02P20/10
Inventor 王鹏李雁秋张秀娟张兰
Owner PETROCHINA CO LTD
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