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Activated carbon for air purification

An air purification and activated carbon technology, applied in the field of activated carbon, can solve the problems of poor adsorption capacity and poor sustainable capacity, and achieve the effects of strong sustained adsorption capacity, improved viscosity, and good air purification and adsorption capacity.

Inactive Publication Date: 2020-10-30
LIYANG ZHUXI ACTIVATED CARBON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Activated carbon used in the field of air purification has requirements for its pore size and material. The existing activated carbon materials require not only the degree of air purification, but also its continuous purification ability. Regular pores are stable and desorb well, but in The adsorption capacity is poor, and the sustaining capacity is also poor

Method used

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  • Activated carbon for air purification
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  • Activated carbon for air purification

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preparation example Construction

[0020] Based on the activated carbon raw material, the preparation method of the activated carbon may further comprise the steps:

[0021] S1 raw material mixing; 50-77 parts of viscous bituminous coal and 23-50 parts of binder are mixed at one time, stirred evenly, and viscous bituminous coal formed by bonding is obtained;

[0022] Before mixing the S1 raw materials, crush and filter 50-77 parts of viscous bituminous coal;

[0023] Crushing makes the particles of raw coal uniform, which can not only improve the surface chemical cohesion between coal powder and binder, increase the strength of formed products, reduce the difficulty of forming, but also improve the air separation performance of activated carbon products. Reduce the particle size of coal particles as much as possible, the finer the crushing, the better the performance of the prepared activated carbon, and the crushing makes the particles of the raw coal uniform, which can not only improve the surface chemical co...

Embodiment 1

[0031] The raw material of activated carbon according to the present invention comprises: 50 parts of sticky bituminous coal, 50 parts of binder, wherein sticky bituminous coal is 1 / 3 coking coal, binder is the mixture of coal tar and starch, and coal tar The mass ratio to starch is 2:1.

[0032] Based on the activated carbon raw material, the preparation method of the activated carbon may further comprise the steps:

[0033] S1 raw material mixing; 50 parts of viscous bituminous coal and 50 parts of binder are mixed at one time, stirred evenly, and viscous bituminous coal formed by bonding is obtained;

[0034] S2 Coal Quality Modification: Heat and pre-oxidize the cohesive bituminous coal obtained in S1 to promote the expansion of bituminous coal, initially release gas, make the coal fluffy, and obtain molten bituminous coal with a loose structure;

[0035]Specifically, the cohesive bituminous coal obtained in S1 is placed in a carbonization furnace and heated at a temperat...

Embodiment 2

[0041] The raw material of activated carbon according to the present invention comprises: 50 parts of sticky bituminous coal, 50 parts of binder, wherein sticky bituminous coal is 1 / 3 coking coal, binder is the mixture of coal tar and starch, and coal tar The mass ratio to starch is 5:1.

[0042] Based on the activated carbon raw material, the preparation method of the activated carbon may further comprise the steps:

[0043] S1 raw material mixing; 50 parts of viscous bituminous coal and 50 parts of binder are mixed at one time, stirred evenly, and viscous bituminous coal formed by bonding is obtained;

[0044] S2 Coal Quality Modification: Heat and pre-oxidize the cohesive bituminous coal obtained in S1 to promote the expansion of bituminous coal, initially release gas, make the coal fluffy, and obtain molten bituminous coal with a loose structure;

[0045] Specifically, the cohesive bituminous coal obtained in S1 is placed in a carbonization furnace and heated at a tempera...

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Abstract

The invention discloses activated carbon for air purification, wherein the activated carbon comprises the raw materials in percentage by mass: 50-77 parts of sticky bituminous coal and 23-50 parts ofa binder, wherein the sticky bituminous coal is 1 / 3 coking coal, the binder is a mixture of coal tar and starch, and the mass ratio of the coal tar to the starch is 2:1-5:1; based on the raw materialsof the activated carbon, A preparation method of the activated carbon comprises the following steps: S1, mixing of the raw materials; S2, coal quality modification; S3, carbonizing; S4, activation; and S5, screening. The activated carbon provided by the invention has better air purification and adsorption capacity and stronger continuous adsorption capacity.

Description

technical field [0001] The invention relates to the field of activated carbon, in particular to activated carbon for air purification. Background technique [0002] Activated carbon is a specially treated charcoal. Organic raw materials (husks, coal, wood, etc.) are heated in the absence of air to reduce non-carbon components (this process is called carbonization), and then react with gas, and the surface is Erosion, resulting in a microporous structure (this process is called activation). Since the activation process is a microscopic process, that is, the surface erosion of a large number of molecular carbides is point erosion, so the surface of activated carbon has countless fine pores. The diameter of micropores on the surface of activated carbon is mostly between 2 and 50nm. Even a small amount of activated carbon has a huge surface area, and the specific surface area per gram of activated carbon is 500~1500m 2 , almost all applications of activated carbon are based on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30C01B32/312C01B32/318C01B32/336B01D53/02
CPCB01J20/20B01J20/28016B01J20/28054B01D53/02C01B32/318C01B32/312C01B32/336
Inventor 陈静吕震龙
Owner LIYANG ZHUXI ACTIVATED CARBON
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