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, large pollution, poor dehydration performance of ultra-high voltage transformer oil, etc., and achieve product quality improvement, pollution reduction, product quality Yield improvement effect

Inactive Publication Date: 2006-05-03
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 the fraction with a boiling point of 280 to 360°C to obtain the transformer oil anti-gassing additive.

[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 ...

Embodiment 2

[0025] Example 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 than one of cobalt-molybdenum, nickel-molybdenum, tungsten-nickel, molybdenum-cobalt-nickel oxygenation catalysts is 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 the fraction with a boiling point of 280 to 360°C to obtain the transformer oil anti-gassing additive.

[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 resistance gen...

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Abstract

The production method of the transformer oil anti-gassing additive of the present invention is as follows: firstly, the petroleum distillate with a boiling point of 250 to 500° C. is used as a raw material, and cobalt-molybdenum, nickel-molybdenum, tungsten-nickel, molybdenum-cobalt-nickel hydrogenation catalysts are used. Any one or more than one catalyst is subjected to a hydrotreating process; secondly, the resulting oil after the hydrotreating process is distilled at normal pressure to distill a fraction with a boiling point of 280 to 360°C to obtain a transformer oil anti-gassing additive; The method of use is as follows: the anti-gassing additive of transformer oil is added to ordinary transformer oil for blending to obtain ultra-high transformer oil; the invention has the following advantages: the pollution to the environment is reduced, and the blended ultra-high transformer oil makes dehydration easier Easy, so that the product output and quality have been greatly improved.

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, mai...

Claims

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Application Information

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Patent Type & Authority Patents(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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