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Air purification adsorption material as well as preparation method and application thereof

An air purification and adsorption material technology, applied in chemical instruments and methods, separation methods, adsorbed water/sewage treatment, etc., can solve the problems of increasing adsorbent treatment costs, excessive adsorption, low adsorption efficiency, etc., to avoid uneven load. , to avoid clogging pores, high adsorption effect

Active Publication Date: 2022-07-29
SHANGHAI JIAO TONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these adsorbents cannot specifically adsorb these gases, especially the adsorption efficiency of water vapor is low, and it is easy to cause excessive adsorption
In addition, most of these physical adsorbents are not easy to desorb and are quite cumbersome to handle
This will not only cause secondary harm to the environment, but also increase the disposal cost of the adsorbent

Method used

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  • Air purification adsorption material as well as preparation method and application thereof
  • Air purification adsorption material as well as preparation method and application thereof
  • Air purification adsorption material as well as preparation method and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0032] The preparation method of the air purification adsorption material provided in the embodiment of the present application includes:

[0033] The raw materials of the following components are mixed and granulated by mass percentage: 20-40% activated alumina powder, 20-40% activated carbon powder, 25-35% magnesium oxide powder, 2.2-7% binder and 8-12.8% water, and granulation to obtain the first primary adsorption material;

[0034] Immerse the first primary adsorbent material in the active component solution, so that the active component is loaded on the first primary adsorbent material to obtain the second primary adsorbent material, and the active component solution contains thiosulfate with a concentration of 50-500g / L and the concentration is 50-500g / L potassium carbonate, and the thiosulfate includes at least one of sodium thiosulfate, potassium thiosulfate and magnesium thiosulfate.

[0035] The preparation method provided in this application,

[0036] First, the ...

Embodiment 1

[0056] According to mass percentage, the following raw materials will be prepared: 25% activated alumina powder, 35% activated carbon powder, 25% magnesium oxide powder, 5% binder and 10% water. The specific surface area of ​​activated carbon is about 1000-1200m 2 / g, the specific surface area of ​​activated alumina powder is about 1000 ~ 1200m 2 / g.

[0057] Prepare a sufficient amount of active ingredient solution containing 250 / L thiosulfate and 250 g / L potassium carbonate.

[0058] The activated alumina powder, activated carbon powder, magnesium oxide powder, binder and water were placed in a mixer for mechanical stirring. The stirring speed was 500r / min and the stirring time was 5h. In order to ensure that the components could be mixed and dispersed more uniformly, During the stirring process, ultrasonic dispersion was performed, and the ultrasonic power was 1000W.

[0059] The mixed material obtained after mixing uniformly was placed in a disc granulator for granulati...

Embodiment 2-12

[0063] Examples 2-12 are basically the same as Example 1, except that the proportions and some operating parameters are different, and the specific settings are shown in Table 1.

[0064] Table 1 Specific Settings of Embodiments 2-12

[0065]

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Abstract

The invention relates to the technical field of adsorption materials, and discloses an air purification adsorption material as well as a preparation method and application thereof. The preparation method of the air purification adsorption material comprises the following steps: mixing and granulating the following raw materials in percentage by mass: 20-40% of activated aluminum oxide powder, 20-40% of activated carbon powder, 25-35% of magnesium oxide powder, 2.2-7% of a binder and 8-12.8% of water, dipping a first primary adsorption material obtained by granulation into an active component solution containing thiosulfate and potassium carbonate, and loading the active component on the first primary adsorption material to obtain a second primary adsorption material. The air purification adsorption material is prepared by adopting the preparation method, and the adsorption material has good adsorbability and can adsorb part of harmful gas in air. The adsorption material can be applied to the field of air purification.

Description

technical field [0001] The invention relates to the technical field of adsorption materials, in particular, to an air purification adsorption material and a preparation method and application thereof. Background technique [0002] As we all know, there are many mixed gases in the air, especially in some seriously polluted areas or indoor environments, there are a lot of acid gases and water vapor. This will not only endanger human health, especially in the production or application of some precision instruments and high-end electronic products, the presence of these gases (chlorine, sulfur dioxide, water vapor, etc.) will cause irreversible damage to the equipment, so it is necessary to treat these gases. A large amount of adsorption or removal is carried out. [0003] At present, physical adsorption is still used in most of these fields, and activated carbon isotherm is the main method. However, these adsorbents cannot desorb these gases in a targeted manner, especially t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/02B01J20/20B01J20/04B01J20/30B01D53/02C02F1/28
CPCB01J20/0248B01J20/20B01J20/041B01J20/045B01J20/043B01J20/30B01D53/02C02F1/288Y02A50/20
Inventor 唐文奇张佼付超鹏顾琰翔
Owner SHANGHAI JIAO TONG UNIV
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