Unlock instant, AI-driven research and patent intelligence for your innovation.

Regeneration treatment method of adsorbent for transformer oil

A treatment method and technology for transformer oil, which are used in filter regeneration, separation methods, petroleum industry, etc., can solve the problems of inability to remove harmful adsorbents well, lack of universality, and limited types of adsorbents, and achieve the goal of dehydration. The effect of high attachment efficiency, improved adsorption performance and low energy consumption

Pending Publication Date: 2021-04-23
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing regeneration treatment methods of adsorbents for transformer oil can only improve the insulating properties of the adsorbents, thereby obtaining better adsorption effects, but cannot remove these harmful adsorbents dissolved in them well, and the applicable adsorbent types Limited, not universal

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Regeneration treatment method of adsorbent for transformer oil
  • Regeneration treatment method of adsorbent for transformer oil
  • Regeneration treatment method of adsorbent for transformer oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Immerse 1g of 13X molecular sieve after saturated adsorption in a mixed solution of 6.25ml of isopropanol, 18.75ml of methanol and 25ml of acetonitrile at a speed of 120r / min for 40min, filter, and dry at 90°C for 3h;

[0028] (2) The adsorbent obtained in step (1) is immersed in a mixed solution of 6.25ml ether, 18.75ml chloroform and 25ml methylene chloride, and the microwave power rises to 530w from 35w at a rate of increase of 3w / min in the microwave generating system , making the adsorbate desorb;

[0029] (3) Filter the adsorbent obtained in step (2) and dry it at 60° C. for 3 hours to obtain a regenerated adsorbent.

Embodiment 2

[0031] (1) Immerse 1 g of silica gel after adsorption saturation in a mixed solution of 6.25 ml of isopropanol, 25 ml of methanol and 18.75 ml of acetonitrile at a speed of 100 r / min for 50 min, filter, and dry at 85 ° C for 3 h;

[0032] (2) The adsorbent that step (1) is obtained is immersed in the mixed solution of 6.25ml ether, 25ml chloroform and 18.75ml dichloromethane, and microwave power rises from 45w to 500w to desorb the adsorbate;

[0033] (3) Filter the adsorbent obtained in step (2) and dry it at 70° C. for 3.5 hours to obtain a regenerated adsorbent.

Embodiment 3

[0035] (1) Immerse 1 g of activated clay after adsorption saturation in a mixed solution of 10 ml of isopropanol, 25 ml of methanol and 20 ml of acetonitrile at a speed of 120 r / min for 50 min, filter, and dry at 80 ° C for 3.5 h;

[0036] (2) The sorbent material that step (1) is obtained is immersed in the mixed solution of 6ml ether, 18ml chloroform and 25ml methylene dichloride, and microwave power rises to 540w with the rising rate of 3w / min from 40w in microwave generation system, makes Adsorbate desorption;

[0037] (3) Filter the adsorbent obtained in step (2) and dry it at 80° C. for 3.5 hours to obtain a regenerated adsorbent.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of adsorbent treatment. The invention provides a regeneration treatment method of an adsorbent for transformer oil. The used adsorbent is sequentially stirred in a first solvent with strong polarity and adsorbed in a second solvent with medium polarity, so that main residual transformer oil, thiophene, aminopyrine and other strong-polarity organic adsorbates in the adsorbent can be efficiently removed, and meanwhile, trace copper ions, carboxylate ions and other adsorbates which are difficult to remove in the adsorbent are dissolved out, so that the adsorption performance of the adsorbent is effectively improved. The treatment capacity of the adsorbent obtained through the regeneration treatment method for the old oil of the transformer can still be kept 95% or above of the original level. The regeneration treatment method can be suitable for various adsorbents for the transformer oil, is high in universality in the field of regeneration treatment of the adsorbents for the transformer oil, and has the advantages of being low in energy consumption and high in desorption efficiency.

Description

technical field [0001] The application belongs to the technical field of adsorbent treatment, and in particular relates to a regeneration treatment method for an adsorbent used in transformer oil. Background technique [0002] In recent years, the power industry has developed rapidly, and transformers, as one of the main power distribution equipment, have become very popular in the market. Transformer oil is filled inside various transformer equipment and plays the role of insulation, heat dissipation, and arc extinguishing. However, with the aging of transformer oil itself and external pollution, the acid value, interfacial tension, dielectric loss factor, volume resistivity, etc. The performance is significantly reduced, resulting in damage to transformer equipment, and transformer accidents are becoming more and more frequent. Therefore, the purification of waste transformer oil has become one of the focuses of this industry. Due to its good effect on removing small mol...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01J20/34
CPCB01J20/3475B01J20/3441
Inventor 钱艺华赵耀洪盘思伟
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID