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Method for preparing modified adsorbent and method for insulating oil waste oil regeneration treatment thereof

A technology for regeneration of adsorbents and adsorbents, applied in chemical instruments and methods, petroleum industry, and other chemical processes, can solve the problems of small adsorption capacity and low efficiency of adsorbents, and achieve improved adsorption performance, high efficiency, and high adsorption capacity big effect

Active Publication Date: 2016-10-26
山东膜泰环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a preparation method of a modified adsorbent and a method for regenerating and treating waste insulating oil, so as to solve the problems of small adsorption capacity and low efficiency of the adsorbent

Method used

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Experimental program
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Effect test

specific Embodiment approach 1

[0022] Embodiment 1: The preparation method of the modified adsorbent in this embodiment is to subject the adsorbent to pretreatment, acid treatment, alkali treatment and organic solvent treatment in sequence.

[0023] Pretreatment: Take 10g of adsorbent, add 250mL of deionized water, heat in a constant temperature water bath at 40°C, and magnetically stir at a speed of 100r / min for 1h. After standing for a period of time, the mixture is separated and the supernatant is poured out , the lower liquid was vacuum filtered, and put into a vacuum drying oven to dry for 4 hours.

[0024] Sorbent acid treatment: add the filtrate to 200mL hydrochloric acid solution with a concentration of 0.5mol / L, and oscillate ultrasonically for 0.2h. Under the condition of water bath at 40°C, magnetically stir at a speed of 100r / min for 2h, then vacuum filter the mixed liquid, wash with deionized water until neutral, vacuum dry at 80°C for 4h, and acidify The adsorbent is sealed and reserved, name...

specific Embodiment approach 2

[0030] Embodiment 2: The preparation method of the modified adsorbent in this embodiment is to sequentially process the adsorbent through pretreatment, acid treatment, alkali treatment and organic solvent treatment.

[0031] Adsorbent pretreatment: Take 10g of adsorbent, add 250mL of deionized water, heat in a constant temperature water bath at 40°C, and perform magnetic stirring at a speed of 200r / min for 1.5h. The liquid was poured off, and the lower liquid was vacuum filtered, and dried in a vacuum drying oven for 5 hours.

[0032] Sorbent acid treatment: add the filtrate to 200mL hydrochloric acid solution with a concentration of 1mol / L, and oscillate ultrasonically for 0.3h. Under the condition of 45°C water bath, magnetic stirring was carried out at a speed of 200r / min for 2.5h, then the mixed liquid was vacuum filtered, washed with deionized water until neutral, vacuum dried at 90°C for 4h, acidified The processed adsorbent is sealed and reserved, named as A.

[0033]...

specific Embodiment approach 3

[0037] Embodiment 3: The preparation method of the modified adsorbent in this embodiment is to subject the adsorbent to pretreatment, acid treatment, alkali treatment and organic solvent treatment in sequence.

[0038] Adsorbent pretreatment: take 10g of adsorbent, add 250mL deionized water, heat in a constant temperature water bath at 40°C, and magnetically stir at a speed of 100r / min for 1h. Poured off, the lower layer of liquid was vacuum filtered, and put into a vacuum drying oven to dry for 4 hours.

[0039] Sorbent acid treatment: add the filtrate to 200mL sulfuric acid solution with a concentration of 0.5mol / L, and oscillate ultrasonically for 0.2h. Under the condition of water bath at 40°C, magnetically stir at a speed of 100r / min for 2h, then vacuum filter the mixed liquid, wash with deionized water until neutral, vacuum dry at 80°C for 4h, and acidify The adsorbent is sealed and reserved, named as A.

[0040] Alkaline treatment of adsorbent: put the acidified adsor...

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Abstract

The invention discloses a method for preparing a modified adsorbent and a method for insulating oil waste oil regeneration treatment thereof and belongs to the technical field of waste oil regeneration treatment. According to the method, the problems that an adsorbent is small in adsorption capacity and low in efficiency are solved. The method for preparing the modified adsorbent comprises the steps of subjecting the adsorbent to acid treatment, alkali treatment and organic solvent treatment sequentially. The method for insulating oil waste oil regeneration treatment comprises the steps of performing vacuum filtration on insulating oil waste oil and then adding the modified adsorbent prepared through the method according to claim 1, performing magnetic stirring at a speed of 100-400 r / min at 35-80 DEG C for1-6 h, and then using filter paper with a pore diameter of 1-3 [mu]m to perform vacuum filtration. The method for insulating oil waste oil regeneration treatment is mainly used for removing impurities in insulating oil, such as suspended matter and metal ions, and improves color and an oil product. The method for insulating oil waste oil regeneration treatment is applied to waste oil treatment industries of electric power insulating oil and chemistry industry oil, the adsorption capacity is high, the treatment efficiency is high, an operation process is simple, and the method is free of pollution.

Description

technical field [0001] The invention belongs to the technical field of waste oil regeneration treatment, and in particular relates to a preparation method of a modified adsorbent and a method for regeneration treatment of insulating oil waste oil. Background technique [0002] As an important insulating medium, insulating oil is mostly used in oil-immersed insulation high-voltage power transmission and transformation equipment such as transformers, which can improve the insulation strength of transformers and enhance heat dissipation performance. It plays an important role in the safe and reliable operation of the transformer. During the operation, the transformer oil is easy to contact with the air and absorb the oxygen in the air. Under the action of temperature, electromagnetic field and metal components, it will inevitably age and generate oxidation. substances, moisture, carboxylic acids, naphthenic acids and suspended solids, and this aging is irreversible, causing the...

Claims

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Application Information

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IPC IPC(8): B01J20/30C10M175/00
CPCB01J20/3071C10M175/0008C10N2040/16
Inventor 崔学军王忠祥刘洪兵张瑛琪
Owner 山东膜泰环保科技股份有限公司
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