A method of treating an electrically insulating oil

An electrical insulating oil and oil treatment technology, applied in the petroleum industry, lubricating compositions, etc., can solve the problems of complex process and time-consuming

Inactive Publication Date: 2009-07-15
ABB RES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Complex, time-consuming process with scavenger and sorbent columns that must be regenerated after a period of treatment

Method used

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  • A method of treating an electrically insulating oil
  • A method of treating an electrically insulating oil
  • A method of treating an electrically insulating oil

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Embodiment Construction

[0046] A detailed description of the preferred embodiments is provided herein. However, it should be understood that the invention may be embodied in a variety of forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but rather as a basis for the claims and as a practical basis for teaching one skilled in the art to employ the invention in any suitably detailed system, structure or manner.

[0047] figure 1 A schematic process diagram of the method is shown. In Block 1, the electrical insulating oil is tempered to the correct temperature for the reaction to proceed. At Box 2, chemicals (from the source of chemicals in Box 3) are added to the oil along with an inert gas and begin to react with the active organosulfur compounds present in the oil. An inert gas is added to the oil to facilitate the reaction between the chemical reagent and the reactive organosulfur compound by keeping volatile reaction products out of the oil phase during t...

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Abstract

A method of treating an electrically insulating oil, wherein the oil comprises at least one reactive organic sulphur compound. A chemical agent causing a reaction with said reactive organic sulphur compound is added to the oil and said chemical agent comprises an elementary halogen.

Description

technical field [0001] The present invention relates to a method of treating electrical insulating oil, wherein said oil comprises at least one active organosulfur compound. Background technique [0002] Insulating oils are used in many different pieces of equipment in the field of power transmission and generation, such as power transformers, distribution transformers, tap changers, switchgear and reactors. [0003] These electrical insulating oils usually contain traces of active organic sulfur compounds, such as organic disulfides or thiols (thiol, also known as mercaptan), and these active sulfur compounds can react with copper or copper oxide to form cuprous sulfide (Cu 2 S). [0004] One possible reaction pathway is the reaction of copper with thiols to form copper thiols. Copper thiol can be further decomposed, leading to the formation of (I) cuprous sulfide, Cu 2 S. [0005] Cu 2 O+2RSH=>2CuSR+H 2 o [0006] 2CuSR=>Cu 2 S+RSR [0007] wherein RSH is th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M175/00C10N40/16
CPCC10M2219/08C10M175/0016C10N2240/201C10N2040/16
Inventor K·古斯塔夫森R·利安德森
Owner ABB RES LTD
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