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Activated carbon microwave regeneration treatment method

A treatment method and technology of activated carbon, which is applied in the process of microwave activated carbon regeneration and the field of activated carbon regeneration using microwave technology, which can solve the problems of long regeneration process, low product quality and high energy consumption

Inactive Publication Date: 2016-03-16
NANJING SANLE MICROWAVE TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the many activated carbon regeneration methods, the thermal regeneration process is the most mature and widely used, but there are also many disadvantages, such as long regeneration process, high energy consumption, and low product quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A microwave regeneration treatment method for activated carbon, comprising the following steps:

[0029] 1) Place the saturated activated carbon in a microwave device in an oxygen-isolated state;

[0030] 2) Turn on the microwave equipment, the microwave source is 60kW, and the microwave radiation activated carbon is used to heat up;

[0031] 3) Raise the temperature of the activated carbon in step 2) to 900°C and keep it for 5 minutes;

[0032] 4) Turn off the microwave equipment and cool down to obtain regenerated activated carbon.

Embodiment 2

[0034] A microwave regeneration treatment method for activated carbon, comprising the following steps:

[0035] 1) Place the saturated activated carbon in a microwave device in an oxygen-isolated state;

[0036] 2) Turn on the microwave equipment, the microwave source is 60kW, and the microwave radiation activated carbon is used to heat up;

[0037] 3) The activated carbon in step 2) is heated up to 600°C and maintained for 30 minutes;

[0038] 4) Turn off the microwave equipment and cool down to obtain regenerated activated carbon.

Embodiment 3

[0040] A microwave regeneration treatment method for activated carbon, comprising the following steps:

[0041] 1) Place the saturated activated carbon in a microwave device in an oxygen-isolated state;

[0042] 2) Turn on the microwave equipment, the microwave source is 60kW, and the microwave radiation activated carbon is used to heat up;

[0043] 3) The activated carbon in step 2) is heated up to 700°C and maintained for 20 minutes;

[0044] 4) Turn off the microwave equipment and cool down to obtain regenerated activated carbon.

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Abstract

The invention discloses an activated carbon microwave regeneration treatment method comprising the steps: placing adsorption-saturated activated carbon in a microwave device in an oxygen insulation state; performing microwave irradiation of activated carbon to heat up to 600-900 DEG C, and maintaining for 0-30 min; and closing the microwave device, and cooling to obtain regenerated activated carbon. The best microwave regeneration treatment process is selected through a lot of experiments, high temperature generated by microwave heating enables organic pollutants on the activated carbon to be carbonized and activated, so as to restore the adsorption ability of the activated carbon; because high temperature makes a part of the activated carbon burnt lost and the pore size increased, the adsorption capacity of the activated carbon can be improved. The activated carbon regeneration method provided by the invention has the advantages of short time, low energy consumption, simple equipment structure and strong environmental protection, can achieve the purpose of regeneration without addition of any activating agent, and can overcome various shortcomings of a traditional activated carbon regeneration method.

Description

technical field [0001] The invention relates to a microwave activated carbon regeneration process, in particular to a microwave activated carbon regeneration process, which belongs to the field of environmental protection engineering. Background technique [0002] Activated carbon is a kind of porous adsorption material, which is widely used in chemical industry, environmental protection, aerospace and other fields. However, after decolorization or adsorption saturation, the internal pore structure of activated carbon is blocked by adsorbate, thus losing its adsorption capacity. After a large amount of waste activated carbon with saturated adsorption is discarded, it will not only cause waste of resources but also produce secondary pollution. Therefore, the regeneration of waste activated carbon is very important at home and abroad. [0003] At present, activated carbon regeneration methods mainly include thermal regeneration, biological regeneration, wet oxidation regenerat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/34B01J20/20
CPCB01J20/3416B01J20/20B01J20/3441
Inventor 张慧杨琦郝刚肖晶辉杨微
Owner NANJING SANLE MICROWAVE TECH DEV
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