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

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...