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Refrigerating machine oil combination and preparation method thereof

A technology for refrigerating machine oil and composition, which is used in lubricating compositions, production of liquid hydrocarbon mixtures, petroleum industry, etc., can solve the problems of poor compatibility of R600A, low energy saving effect, etc., and achieves excellent solubility, high viscosity index, good heat The effect of chemical stability

Active Publication Date: 2008-05-14
BEIJING FRIENDLINK PETROCHEM T&D CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The object of the present invention is to overcome the disadvantages of low energy-saving effect or poor compatibility with R600A of the refrigerating machine oil composition in the prior art, and provide a kind of oil composition with good energy-saving effect and Refrigeration machine oil composition with good compatibility with R600A

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This example is used to illustrate the refrigerating machine oil composition and its preparation method provided by the present invention.

[0038] 1000 parts by weight of C 5 -C 7 Mix α-olefins (provided by Lanzhou Petrochemical General Plant) and 10 parts by weight of phosphotungstic heteropolyacid to react for 1.5 hours at 140°C and 0.1 MPa. After cooling and settling to remove the sediment, add 20 parts by weight of Ca(OH) to the product 2 , 30 parts by weight of activated clay, reacted at 75°C for 0.5 hour, filtered to remove the clay, cut under reduced pressure, obtained 600 parts by weight of ISO VG5 cuts, the viscosity of this cut was 4 square millimeters per second, and the distillation range was 272-288°C accounted for 80% by weight, and those with a distillation range greater than 288°C to 300°C accounted for 20% by weight. Take out therefrom 100 parts by weight of the above-mentioned cuts and 0.5 parts by weight of 2,6-di-tert-butyl-p-cresol, 3 parts by we...

Embodiment 2

[0040] This example is used to illustrate the refrigerating machine oil composition and its preparation method provided by the present invention.

[0041] The C cracked by 1000 parts by weight of white wax 6 -C 7 Mixed alpha olefins (provided by Fushun Petroleum No. 1 Plant) and 5 parts by weight of AlCl 3 .NaCl was reacted at 150°C and 0.2 MPa for 1.5 hours, after cooling and settling to remove the sediment, 30 parts by weight of Ca(OH) was added to the product 2 , 20 parts by weight of activated clay, reacted at 75°C for 0.5 hour, filtered to remove the clay, and cut under reduced pressure to obtain 700 parts by weight of ISO VG5 cuts. The viscosity of this cut was measured to be 5 square millimeters per second, and the distillation range was 271 -290°C accounted for 68% by weight, and those with a distillation range of 290°C or higher to 300°C accounted for 32% by weight. Take out therefrom 100 parts by weight of the above cuts and 0.3 parts by weight of 4,4'-tetramethyl...

Embodiment 3

[0043] This example is used to illustrate the refrigerating machine oil composition and its preparation method provided by the present invention.

[0044] The C cracked by 1000 parts by weight of soap wax 5 -C 7 Mixed alpha olefins (provided by Fushun Petroleum No. 1 Plant) and 12 parts by weight of BF 3 .CH 3 CH 2 OH was reacted at 140°C and 0.15 MPa for 1.5 hours. After cooling and settling to remove the sediment, 30 parts by weight of Ca(OH) was added to the product. 2 , 20 parts by weight of activated clay, reacted at 75°C for 0.5 hour, filtered to remove the clay, and cut under reduced pressure to obtain 500 parts by weight of ISO VG5 cuts. The viscosity of this cut was measured to be 3.6 square millimeters per second, and the distillation range was 262 -280°C accounted for 81% by weight, and those with a distillation range of 280-300°C accounted for 19% by weight. Take out therefrom 100 parts by weight of the above cuts and 0.3 parts by weight of 4,4'-tetramethylbis...

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Abstract

The invention relates to a refrigerant machine oil composition, comprising a mixed Alpha olefin polymer oil which is adopted as base oil and additive, wherein, a viscosity of the mixed Alpha olefin polymer oil at 40 DEG C ranges from 3 square millimeter per second to less than 6 square millimeter per second; the mixed Alpha olefin polymer oil is C15-C22 mixed isoolefine, C15-C22 mixed isoparaffin or the mixture of C15-C22 mixed isoolefine and C15-C22 mixed isoparaffin. The refrigerant machine oil composition provided by the invention has the advantages that: (1) good solubility with R600A refrigerating fluid, and floc point being lowered to minus 70 DEG C; (2) excellent fluidity in low temperature, with a pour point lowering to minus 70 DEG C, and a kinematic coefficient of the viscosity being less than 500 square millimeter per second at minus 40 DEG C; (3) comparatively apparent energy saving effect which is respectively higher than the refrigerant machine oil with a viscosity of 22 and 10 square millimeter per second by 14 percent and 4 percent at 40 DEG C.

Description

technical field [0001] The invention relates to a refrigerating machine oil composition and a preparation method thereof. Background technique [0002] The compression refrigeration system is composed of a refrigeration compressor, a condenser, an expansion valve, an evaporator, etc. The working principle is to use the refrigerant to vaporize and volatilize, absorb the heat of the surrounding medium, reduce the temperature for cooling, and then pass the refrigerant to the air through the compressor. It returns to liquid, then gasifies again, and the cycle repeats. This kind of refrigeration system is widely used in household appliances such as refrigerators and air conditioners, industrial equipment such as cold stores and cold rooms, and commercial equipment such as showcases, beverage and ice cream machines. The compressor is the heart of this kind of refrigeration system, and the refrigeration oil that plays the roles of lubrication, heat dissipation, sealing and anticor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M107/02C10G50/02C10N40/30
CPCC10N2220/302C10N2240/30C10M2203/0206C10N2230/06C10N2230/08C10M2205/0285C10M171/008C10N2220/022C10N2020/02C10N2020/101C10N2030/06C10N2030/08C10N2040/30
Inventor 汪孟言
Owner BEIJING FRIENDLINK PETROCHEM T&D CO LTD
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