Method for producing anti-evolving-gas additive of transformer oil and its using method

A transformer oil and production method technology, applied in the petroleum industry, refined hydrocarbon oil, etc., can solve the problems of low output of transformer oil, heavy pollution, poor dehydration performance of ultra-high voltage transformer oil, etc., and achieve the effect of reducing pollution and increasing product output

Inactive Publication Date: 2003-08-27
克拉玛依市金龙特种油品公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The invention solves the problems of low transformer oil output and heavy pollution in the past
The invention also solves the problem of poor dehydration performance of the blended ultra-high voltage transformer oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1, firstly, the petroleum distillate with a boiling point of 250 to 500° C. is used as a raw material, and any one or more than one of cobalt-molybdenum, nickel-molybdenum, tungsten-nickel, molybdenum-cobalt-nickel hydrogenation catalysts is used , carry out the hydrotreating process, the process conditions are: the reaction pressure is 3.0 MPa or 5.0 MPa or 8.0 MPa, the reaction temperature is 370 ° C or 385 ° C or 400 ° C, and the reaction space velocity is 0.1 hour -1 or 0.3 hours -1 or 0.5 hours -1 , The reaction hydrogen oil volume ratio is 900:1 or 2000:1 or 3000:1; secondly, the resulting oil after the hydrotreating process is distilled at normal pressure to distill off the fraction with a boiling point of 280 to 360°C to obtain the transformer oil. air additives.

[0024] The transformer oil anti-gassing additive obtained in Example 1 above is added to ordinary transformer oil for blending to obtain ultra-high transformer oil, wherein the amount of ...

Embodiment 2

[0025] Embodiment 2, firstly, the petroleum distillate with a boiling point of 250 to 500° C. is used as a raw material, and any one or more catalysts of cobalt-molybdenum, nickel-molybdenum, tungsten-nickel, molybdenum-cobalt-nickel hydrogenation catalysts are used , carry out the hydrotreating process, the process conditions are: the reaction pressure is 9.0 MPa or 12.0 MPa or 15.0 MPa, the reaction temperature is 280 °C or 320 °C or 360 °C, and the reaction space velocity is 1.0 hour -1 or 1.5 hours -1 or 2.0 hours -1 , The reaction hydrogen oil volume ratio is 200: 1 or 500: 1 or 800: 1; secondly, the resulting oil after the hydrotreating process is distilled at normal pressure to distill out the fraction with a boiling point of 280 to 360 ° C to obtain the transformer oil. air additives.

[0026] The transformer oil anti-gassing additive obtained in Example 2 above can be directly used as a transformer oil with low requirements on gassing resistance, and its gassing res...

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Abstract

The invention is a producing method of anti-gas yeilding additive of transformer oil. At first, it uses petroleum distillation, boiling point 250-500 deg.C, as raw material, adopts any one or more of the hydrogenation catalyzer; Co-Mo, Ni-Mo, W-Ni and Mo-Co-Ni to make hydrogenation process; secondly, and at constant pressure distils the produced oil after the hydrogenation process to get the distillation, boiling point 280-360 deg.C, so as to get the additive; the usage: adding the additive to common transformer oil, concocting to get super-high transformer oil.

Description

technical field [0001] The invention relates to the technical field of transformer oil and additives, and relates to a production method and a use method of a transformer oil anti-gassing additive. Background technique [0002] The preparation process route of the existing conventional transformer oil anti-gassing additive is as follows: [0003] Petroleum heavy oil—>atmospheric pressure fractionation—>normal three-line distillate—>hydrodeacidification—>furfural refining—>anti-gassing additive components—>sulfuric acid refining—>sodium hydroxide refining—>clay refining. [0004] The production method of above-mentioned conventional transformer oil anti-gassing additive is as follows: [0005] Fractional distillation of heavy petroleum oil at normal pressure to obtain distillate oil with a boiling point of 275°C to 360°C, that is, ordinary third-line distillate oil. Often the third-line distillate oil has a high acid value, m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/00
Inventor 杨建湘张玲俊熊春珠马书杰尹宏刘瑞君柯友胜季玉明郑智
Owner 克拉玛依市金龙特种油品公司
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