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Internal boiling activated carbon treatment process

A treatment process, activated carbon technology, applied in the petroleum industry, inorganic chemistry, filter regeneration, etc., can solve the problems affecting the quality of activated carbon and incomplete recovery of activated carbon.

Active Publication Date: 2020-12-15
中科富海(中山)低温装备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide an internal boiling activated carbon treatment process to solve the problem of incomplete recovery of activated carbon and affecting the quality of activated carbon

Method used

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  • Internal boiling activated carbon treatment process
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  • Internal boiling activated carbon treatment process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Step 1. Use a 3-mesh sieve to sieve activated carbon of 4.75mm×2.36mm to remove large particles of activated carbon, then use a 10-14 mesh sieve to sieve 4.75mm×2.36mm activated carbon to remove small particles Activated carbon;

[0041] Step 2. After the activated carbon is screened, put it in a 10-14 mesh sieve and rinse it with alcohol-water mixture (alcohol concentration is 70%) in the cleaning tank to remove the dust attached to the surface of the activated carbon. Then put the activated carbon and ethanol aqueous solution in a decompression box, depressurize rapidly until the solution boils slightly, and then rapidly increase the pressure to atmospheric pressure, repeating 5 times to promote the solution to immerse in the inner space of the activated carbon. The cleaning process should be gentle to prevent the activated carbon from breaking. The activated carbon contained in a single sieve shall not exceed 50% of the volume of the sieve. During activated carbon ...

Embodiment 2

[0046] Step 1. Use a 3-mesh sieve to sieve activated carbon of 4.75mm×2.36mm to remove large particles of activated carbon, then use a 10-14 mesh sieve to sieve 4.75mm×2.36mm activated carbon to remove small particles Activated carbon;

[0047] Step 2. After the activated carbon is screened, put it in a 10-14 mesh sieve and rinse it with an alcohol-water mixture (alcohol concentration is 75%) in a cleaning tank to remove the dust attached to the surface of the activated carbon. Then put the activated carbon and ethanol aqueous solution in a decompression box, depressurize rapidly until the solution boils slightly, and then rapidly increase the pressure to atmospheric pressure, repeating 5 times to promote the solution to immerse in the inner space of the activated carbon. The cleaning process should be gentle to prevent the activated carbon from breaking. The activated carbon contained in a single sieve shall not exceed 50% of the volume of the sieve. During activated carbon...

Embodiment 3

[0052] Step 1. Use a 3-mesh sieve to sieve activated carbon of 4.75mm×2.36mm to remove large particles of activated carbon, then use a 10-14 mesh sieve to sieve 4.75mm×2.36mm activated carbon to remove small particles Activated carbon;

[0053] Step 2. After the activated carbon is screened, put it in a 10-14 mesh sieve and rinse it with an alcohol-water mixture (alcohol concentration is 78%) in a cleaning tank to remove the dust attached to the surface of the activated carbon. Then put the activated carbon and ethanol aqueous solution in a decompression box, depressurize rapidly until the solution boils slightly, and then rapidly increase the pressure to atmospheric pressure, repeating 5 times to promote the solution to immerse in the inner space of the activated carbon. The cleaning process should be gentle to prevent the activated carbon from breaking. The activated carbon contained in a single sieve shall not exceed 50% of the volume of the sieve. During activated carbon...

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Abstract

The invention relates to an activated carbon recycling process and belongs to the field of activated carbon processing. The internal boiling activated carbon treatment process comprises the followingsteps: soaking activated carbon in an alcohol-water solution; putting the soaked activated carbon into microwave radiation to be heated; and finally placing the activated carbon in a vacuum system forthermal drying to obtain a recycled activated carbon product. According to the process, through an activated carbon internal boiling process, under the action of microwaves and in combination with air pressure control, the internal boiling of a solution in internal gaps of activated carbon is regulated and controlled, and harmful substances adsorbed in the activated carbon are promoted to be efficiently discharged. Tests show that the specific surface area of the activated carbon prepared by the process reaches 99.5% or above of the specific surface area of original activated carbon, and theadsorption capacity is almost consistent with the property of the original activated carbon.

Description

technical field [0001] The invention relates to a secondary processing technology for activated carbon, in particular to an internal boiling activated carbon processing technology. Background technique [0002] Activated Carbon (activated Carbon) is a black porous solid carbon. The main component of activated carbon is carbon, which is irregularly arranged in structure, and there are pores between the cross-links. When activated, carbon tissue defects will be generated. The bulk density is low, and the specific surface area has strong adsorption properties. It is extremely versatile. An industrial adsorbent, the specific surface area of ​​ordinary activated carbon is 500-1700m 2 / g room. [0003] Activated carbon is a hydrophobic adsorbent made from carbon-containing substances as raw materials, which is carbonized and activated at high temperature. Activated carbon contains a large number of micropores and has a huge specific surface area, which can effectively remove pi...

Claims

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Application Information

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IPC IPC(8): B01J20/34B01J20/20C01B32/36C01B32/366
CPCB01J20/3416B01J20/3475B01J20/3441B01J20/3483C01B32/36C01B32/366
Inventor 甄沛权杨兴平梁丽丽范宇超
Owner 中科富海(中山)低温装备制造有限公司
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