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Modified activated carbon adsorbent

A technology of activated carbon adsorption and activated carbon, which is applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of poor adsorption capacity of activated carbon, and achieve the effects of good adsorption performance, strong regeneration ability, and easy preparation

Inactive Publication Date: 2019-02-15
JINGZHOU HUARONG ACTIVATED CARBON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing activated carbon has poor adsorption capacity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The modified activated carbon adsorbent in this embodiment includes the following components by weight: 255 parts of cashew nut shell activated carbon, 185 parts of coconut shell activated carbon, 175 parts of wood activated carbon, 30 parts of graphite, 25 parts of montmorillonite, and 15 parts of coal tar , 5 parts in methyl cellulose; The preparation method of described modified activated carbon adsorbent comprises the steps:

[0022] S1. Grinding the montmorillonite to 120 mesh, placing it in a calciner, and calcining at 600° C. for 2 hours to obtain calcined montmorillonite;

[0023] S2. Take calcined montmorillonite, cashew nut shell activated carbon, coconut shell activated carbon, wood activated carbon, graphite, coal tar and water according to the above weight ratio, stir evenly, adjust to mud, grind for 3h, and sieve for 200- 300 mesh sieves, obtain the slurry, after drying the slurry, obtain the modified activated carbon primary product;

[0024] S3. Take th...

Embodiment 2

[0026] The modified activated carbon adsorbent in this embodiment includes the following components by weight: 450 parts of cashew nut shell activated carbon, 325 parts of coconut shell activated carbon, 315 parts of wood activated carbon, 55 parts of graphite, 45 parts of montmorillonite, and 25 parts of coal tar , 15 parts in methyl cellulose; The preparation method of described modified activated carbon adsorbent comprises the steps:

[0027] S1. Grinding the montmorillonite to 160 mesh, placing it in a calciner, and calcining at 700° C. for 5 hours to obtain calcined montmorillonite;

[0028] S2. Weigh calcined montmorillonite, cashew nut shell activated carbon, coconut shell activated carbon, wood activated carbon, graphite, coal tar and water according to the above weight ratio, stir evenly, adjust to mud, grind for 3-6h, and sieve 200-300 mesh sieve to obtain the slurry, and after drying the slurry, obtain the primary product of modified activated carbon;

[0029] S3. ...

Embodiment 3

[0031] The modified activated carbon adsorbent in this embodiment includes the following components by weight: 350 parts of cashew nut shell activated carbon, 270 parts of coconut shell activated carbon, 290 parts of wood activated carbon, 40 parts of graphite, 38 parts of montmorillonite, and 21 parts of coal tar , 10 parts in methyl cellulose; The preparation method of described modified activated carbon adsorbent comprises the steps:

[0032] S1. Grinding the montmorillonite to 130 mesh, placing it in a calciner, and calcining at 660° C. for 3.5 hours to obtain calcined montmorillonite;

[0033] S2. Take calcined montmorillonite, cashew nut shell activated carbon, coconut shell activated carbon, wood activated carbon, graphite, coal tar and water according to the above weight ratio, stir evenly, adjust into mud, grind for 56h, and sieve for 200- 300 mesh sieves, obtain the slurry, after drying the slurry, obtain the modified activated carbon primary product;

[0034] S3. T...

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Abstract

The invention discloses a modified activated carbon adsorbent. The modified activated carbon adsorbent comprises the following components in parts by weight: 255-450 parts of cashew husk activated carbon, 185-325 parts of coconut shell activated carbon, 175-315 parts of wooden activated carbon, 30-55 parts of graphite, 25-45 parts of montmorillonite, 15-25 parts of coal tar and 5-15 parts of methylcellulose. A preparation method of the modified activated carbon adsorbent comprises the following steps: S1, smashing the montmorillonite into powder with meshes of 120-160, and calcining the powderfor 2-5 h to obtain calcined montmorillonite; S2, weighing the calcined montmorillonite, the cashew husk activated carbon, the coconut shell activated carbon, the wooden activated carbon, the graphite, the coal tar and water according to the parts by weight, stirring uniformly, grinding for 3-6 h, sieving by using a sieve with meshes of 200-300 to obtain slurry, and drying the slurry to obtain amodified activated carbon primary product; and S3, smashing the modified activated carbon primary product obtained in step S2, spraying a methylcellulose aqueous solution to the modified activated carbon primary product, and drying the modified activated carbon primary product at the temperature of 60-85 DEG C to obtain the modified activated carbon adsorbent. The modified activated carbon adsorbent has the advantages of good adsorption property and high regeneration ability.

Description

technical field [0001] The invention relates to the technical field of adsorbents, in particular to a modified activated carbon adsorbent. Background technique [0002] Activated carbon is black powder or block, granular, honeycomb amorphous carbon, and there are also regularly arranged crystalline carbon. In addition to carbon elements, activated carbon also contains two types of admixtures: one is chemically combined elements, mainly oxygen and hydrogen, these elements are left in the carbon due to incomplete carbonization, or in the activation process, foreign Non-carbon elements are chemically combined with the surface of activated carbon; another type of admixture is ash, which is the inorganic part of activated carbon, and ash in activated carbon is easy to cause secondary pollution. Activated carbon is a hydrophobic adsorbent prepared by high-temperature carbonization and activation from carbon-containing substances as raw materials. Activated carbon contains a larg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30
CPCB01J20/12B01J20/20B01J20/26
Inventor 聂伟袁志雄聂秋菊晏才文
Owner JINGZHOU HUARONG ACTIVATED CARBON CO LTD
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