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A kind of modified activated carbon for removing vocs and preparation method thereof

A technology of activated carbon and modification, applied in the field of modified activated carbon and its preparation, can solve the problems of poor adsorption effect, high production cost, pollution, etc., and achieve the effect of fast speed, fast adsorption rate and high adsorption efficiency

Active Publication Date: 2021-05-25
NINGBO RUNNER INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of poor adsorption effect, high production cost and easy pollution in the prior art, the present invention proposes a modified activated carbon for removing VOCs and a preparation method thereof

Method used

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  • A kind of modified activated carbon for removing vocs and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Example 1 Preparation of modified activated carbon for removing VOCs

[0024] (1) Add 0.5 parts of Span60 and 0.5 parts of Span80 into 78 parts of cyclohexane and stir well;

[0025] (2) Place the mixed solution in step (1) in an ultrasonic cleaner and heat it in a water bath at a temperature of 40-80°C until the dispersant is completely dissolved;

[0026] (3) Add 3 parts of activated carbon to the mixed solution in step (2), then place the mixed solution in a microwave reactor and stir evenly;

[0027] (4) Add 0.4 parts of dicumyl oxide to the mixed solution stirred in step (3), continue to stir for 1-10 minutes, take it out, put it in an ultrasonic cleaner again, and heat it to 30-60°C for cross-linking reaction. Keep warm for 10-20min;

[0028] (5) Take out the heat-preserved mixed solution and let it stand for 1-2 hours, then dry it at 50-100°C to obtain the product.

Embodiment 2

[0029] Example 2 Preparation of modified activated carbon for removing VOCs

[0030] (1) Add 0.6 parts of Span60 and 0.6 parts of Span80 into 150 parts of isobutane and 10 parts of cyclobutane, and stir well;

[0031] (2) Place the mixed solution in step (1) in an ultrasonic cleaner and heat it in a water bath at a temperature of 65°C until the dispersant is completely dissolved;

[0032] (3) Add 5 parts of activated carbon to the mixed solution in step (2), then place the mixed solution in a microwave reactor and stir evenly;

[0033] (4) Add 0.8 parts of dicumyl oxide to the mixed solution stirred in step (3), continue to stir for 1-10 minutes, take it out, put it in an ultrasonic cleaner again, heat it to 45°C for cross-linking reaction, and keep it warm for 10 minutes ;

[0034] (5) Take out the heat-preserved mixed solution and let it stand for 1.5 hours, then dry it at 80°C.

Embodiment 3

[0035] Example 3 Preparation of modified activated carbon for removing VOCs

[0036] (1) Add 1 part of Span80 and 0.4 part of Tween80 into 250 parts of cyclohexane, and stir well;

[0037] (2) Place the mixed solution in step (1) in an ultrasonic cleaner and heat it in a water bath at a temperature of 40°C until the dispersant is completely dissolved;

[0038] (3) Add 5 parts of activated carbon to the mixed solution in step (2), then place the mixed solution in a microwave reactor and stir evenly;

[0039] (4) Add 0.8 parts of N,N-bismethacrylamide to the mixed solution stirred in step (3), continue to stir for 7 minutes, take it out, put it in an ultrasonic cleaner again, and heat it to 40°C for cross-linking reaction. Keep warm for 10-20min;

[0040] (5) Take out the heat-preserved mixed solution and let it stand for 2 hours, then dry it at 70°C.

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Abstract

The invention discloses a modified activated carbon for removing VOCs and a preparation method thereof. The preparation method comprises: (1) adding a dispersant to an oil phase solvent and stirring evenly; (2) placing the mixed solution in an ultrasonic cleaner Heat in a water bath until the dispersant is completely dissolved; (3) Add activated carbon to the mixed solution, and then place the mixed solution in a microwave reactor to stir evenly; (4) Add a crosslinking agent to the mixed solution, continue to stir, and place Carry out cross-linking reaction in an ultrasonic cleaner and keep warm; (5) Take out the mixed solution after keeping warm, let it stand, and dry it to obtain. The modified activated carbon used to remove VOCs prepared by the method of the present invention, by grafting charged functional groups on the activated carbon, combines VOCs molecules with charged functional groups to achieve the effect of trapping VOCs molecules; it has high adsorption efficiency and large adsorption capacity. , the adsorption rate is fast, the advantages of not easy desorption and no secondary pollution.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a modified activated carbon for removing VOCs and a preparation method thereof. Background technique [0002] In recent years, large-scale smog weather has appeared in many cities in my country, and it lasts for a long time. The essence of smog is that the concentration of atmospheric aerosols is at a high level. Organic aerosols are one of the main components of atmospheric aerosols, and organic aerosols generally account for 20-60% of the mass of PM10 and PM2.5 in areas with severe haze. Volatile organic compounds are important precursors for the formation of organic aerosols. As far as the current situation is concerned, the emission of volatile organic compounds (VOCs) in typical industries in my country is very serious to the environment, and there is a continuous growth trend, so the control of VOCs emission cannot be delayed. [0003] As a "universal" ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/30B01D53/81B01D53/72B01D53/44
CPCB01D53/44B01D53/72B01D53/81B01D2257/708B01J20/20B01J20/22Y02A50/20
Inventor 谢鹏远邓清王应泉
Owner NINGBO RUNNER INDAL CORP