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Heavy aromatic electrical insulation oil with high breakdown voltage

A technology of electrical insulating oil and aromatics, applied in organic insulators, organic liquid insulators, catalytic reforming of naphtha, etc., can solve problems such as low fluidity, difficult membrane condenser impregnation, low ability to absorb hydrogen, etc., to achieve The effects of high stability, good low temperature fluidity, and high dielectric breakdown voltage

Inactive Publication Date: 2009-01-28
SK INNOVATION CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the alkylbenzenes thus synthesized have low fluidity and low ability to absorb hydrogen at low temperatures, and thus, are difficult to be used for impregnation of film condensers used at high pressures.

Method used

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  • Heavy aromatic electrical insulation oil with high breakdown voltage
  • Heavy aromatic electrical insulation oil with high breakdown voltage
  • Heavy aromatic electrical insulation oil with high breakdown voltage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] At a pressure of 3kg / cm 2 At a temperature of 500°C and in the presence of a platinum catalyst, the naphtha as a raw material is converted into an aromatic mixed fraction by a reforming method, and then the aromatic fraction is separated from the aromatic mixed fraction by a liquid-liquid extraction method. The separated aromatic fraction is continuously distilled using two distillation columns with a theoretical plate number of 60 to obtain a composition with a distillation range of 280-330° C. and an aromatic compound content of 99 area % as analyzed by HPLC. The composition was used as an electrical insulating oil, and its physical properties and dielectric breakdown voltage were measured, and the measurement results are listed in Table 1 below. The temperature-dependent viscosity properties of the obtained electrical insulating oils in image 3 shown in , its dielectric breakdown voltage properties are in Figure 4 shown in .

Embodiment 2

[0049] The composition was obtained in the same manner as in Example 1, except that the distillation range was controlled at 290-330°C. The obtained composition was used as an electrical insulating oil, and its physical properties and dielectric breakdown voltage were measured, and the measurement results are shown in Table 1 below.

Embodiment 3

[0051] The composition was obtained in the same manner as in Example 1, except that the distillation range was controlled at 290-320°C. The obtained composition was used as an electrical insulating oil, and its physical properties and dielectric breakdown voltage were measured, and the measurement results are shown in Table 1 below.

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Abstract

Disclosed herein is an electrical insulating oil composition using a high-boiling-point aromatic fraction. The oil composition comprises a component having a distillation range of 280-330 DEG C, obtained by continuously distilling an aromatic hydrocarbon fraction from a platforming or aromatizing process. According to the disclosed invention, an electrical insulating oil composition having excellent voltage-withstand capability and excellent gas absorption capability can be obtained from an aromatic fraction. Also, the electrical insulating oil contains no unstable components, resulting in an increase in electrical properties, and thus has advantages of high stability and high potential gradient.

Description

technical field [0001] Cross References to Related Applications [0002] This application claims that the application date is January 12, 2006, and the name is "Heavy aromatic electrical insulation oil with high breakdown voltage (with high breakdown voltage heavy aromatic hydrocarbon electrical insulating oil)" Korean patent application No. 10-2006-0003555 priority. [0003] The invention relates to a high-voltage resistant electrical insulating oil composition containing high-boiling aromatic fractions. More specifically, the present invention relates to a high-voltage resistant electrical insulating oil composition with high stability, excellent low-temperature fluidity and high dielectric breakdown voltage, the composition contains components with a specific distillation range, the The components are separated by distillation of an aromatic mixed fraction formed during the conversion of a hydrocarbon mixture into an aromatic fraction in the presence of a metal catalyst. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B3/22
CPCH01B3/22C10G7/08C10G35/04
Inventor 高在石洪承权权兑旭
Owner SK INNOVATION CO LTD
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