Anti-coking semisynthesis heat conduction oil and preparation method thereof

A semi-synthetic heat transfer oil technology, applied in chemical instruments and methods, heat exchange materials, etc., can solve the problems of poor thermal stability of mineral heat transfer oil, oxygen sensitivity of heat transfer oil, low oxidation sensitivity, etc., and achieve long-term stability Reliable and continuous work, not easy to coke, good anti-oxidation effect

Active Publication Date: 2015-11-11
CHENGDU MAX TOP NEW ENERGY LUBRICATING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since mineral heat transfer oil is a fraction separated from petroleum refining, its composition is relatively complex and its sensitivity to oxidation is low.
Due to the complexity of its own composition and the possible residual impurities in the petroleum refining process, mineral heat transfer oil usually has poor thermal stability in long-term use.
[0005] Synthetic heat transfer oil is a heat transfer oil with good thermal stability made of a single component with relatively high purity, and its thermal conductivity is better than that of mineral heat transfer oil, but synthetic heat transfer oil is usually sensitive to oxygen and easy to oxidize and deteriorate

Method used

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  • Anti-coking semisynthesis heat conduction oil and preparation method thereof
  • Anti-coking semisynthesis heat conduction oil and preparation method thereof
  • Anti-coking semisynthesis heat conduction oil and preparation method thereof

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Experimental program
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Effect test

Embodiment 1-1

[0049] The anti-coking semi-synthetic heat transfer oil is 1000Kg in total, including 500Kg of HVI150 mineral base oil and 478Kg of synthetic base oil. Heat it to 120°C and keep it for 3 hours to remove moisture and light components in the base oil. Analysis shows the moisture content in the base oil 500mg / Kg. Add solid additive 22464Kg and stir to dissolve completely. Cool down to 80°C, add the remaining liquid additives T5344Kg, T1064Kg, T1224Kg, T1556Kg, stir for 30-45min, and mix well to obtain the finished anti-coking semi-synthetic heat transfer oil. The base oil after mixing the mineral base oil and synthetic aromatics: initial boiling point > 300°C, kinematic viscosity (40°C) less than 25mm 2 / s, residual carbon <0.04%, acid value <0.04mgKOH / g, copper corrosion less than 1 grade.

Embodiment 1-2

[0053] The anti-coking semi-synthetic heat transfer oil is 1000Kg in total, including 700Kg of HVI150 mineral base oil, 281.5Kg of synthetic aromatic base oil, L573.5Kg, T5014Kg, T1224.5Kg, and T1546.5Kg.

Embodiment 1-3

[0057] Select highly refined MVI mineral oil as the base oil 485.5Kg and mix 485.5Kg of synthetic aromatics, stir evenly, heat to 120°C, keep for 1-2 hours, remove moisture and light components in the base oil, analysis shows that the base oil Medium moisture content 50mg / Kg. Add solid additives: T5163Kg, T5013Kg, 22463Kg, stir until completely dissolved. Continue to cool down to 80°C, add L573Kg, T1074Kg, T1064Kg, T1559Kg in turn, stir at 60 rpm for 30 minutes, filter through a cartridge filter with a filter hole size of 1 μm, and pack to obtain the finished anti-coking semi-synthetic heat transfer oil.

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Abstract

The invention discloses anti-coking semisynthesis heat conduction oil (modified heat conduction oil). The anti-coking semisynthesis heat conduction oil mainly comprises the following components: mineral basic oil, synthetic basic oil, an amine antioxidant, a phenol antioxidant, a cleaning agent and a dispersing agent, wherein the content of the basic oil is more than or equal to 95 percent by weight; the basic oil consists of the mineral basic oil and the synthetic basic oil, and the weight ratio of the mineral basic oil to the synthetic basic oil is (1 to 9) to (9 to 1); the mixed basic oil: the initial boiling point is higher than 300 DEG C, the spontaneous ignition point is higher than 350 DEG C, the acid value is less than 0.03 mg KOH/g, the residual carbon is less than 0.05 percent, the pour point is less than minus 15 DEG C, the motion viscosity (40 DEG C) is 10 to 28 mm<2>/s, and the open flash point is more than 180 DEG C. The anti-coking semisynthesis heat conduction oil can be suitable for various open-type or close-type heat conduction oil boiler systems, the service life is long when working at the temperature of 300 DEG C, and the anti-coking performance is high.

Description

technical field [0001] The invention relates to an organic heat carrier, in particular to a semi-synthetic heat-conducting oil with anti-coking properties. The invention also provides a preparation method of the above-mentioned semi-synthetic heat-conducting oil. Background technique [0002] Heat transfer oil, also known as heat transfer oil, is a heat transfer medium. It has the characteristics of uniform heating, accurate temperature adjustment and temperature control, high temperature under low pressure, good heat transfer effect, energy saving, convenient transportation and operation. Heat transfer oil has the performance of anti-thermal cracking and chemical oxidation, good heat transfer efficiency, fast heat dissipation, and good thermal stability. [0003] As an industrial heat transfer medium, heat transfer oil has the following characteristics: under almost normal pressure conditions, a high operating temperature can be obtained. It can greatly reduce the operatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/10
Inventor 胡建伟
Owner CHENGDU MAX TOP NEW ENERGY LUBRICATING MATERIALS
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