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Supported catalyst material

A supported catalyst and catalyst technology, applied in the field of air purification, can solve problems such as insufficient, slow rate, and low efficiency of gaseous pollutants, and achieve the effect of improving reaction activity, good effect, and improving catalytic decomposition efficiency

Active Publication Date: 2019-12-31
ZHEJIANG CHENWEI ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For gaseous pollutants, the existing technology adopts physical and chemical methods to deal with them, but both of them have deficiencies.
In the physical method, the existing technology uses high specific surface area materials such as activated carbon for physical adsorption. This type of material has a high specific surface area and good adsorption performance, but there is a problem of adsorption saturation; or use precious metals, metal oxide catalysts for physical adsorption Catalysis, that is, the method of chemical catalytic decomposition, but the catalytic process of the catalyst is a chemical process, the rate is relatively slow, and the treatment efficiency of gaseous pollutants is very low in the case of fast air flow

Method used

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Embodiment 1

[0079] In this embodiment, the active component, the catalyst carrier and the pore-forming agent are mixed, the mixture is added to the extruder, and extruded through the extruder, wherein the active component is a metal platinum-manganese dioxide composite, and the catalyst carrier is It is activated carbon particles, the pore-forming agent is water, and the specific surface area of ​​activated carbon particles is 800m 2 / g, the preparation of supported catalyst comprises the following steps:

[0080] Step 1: Weigh 2wt% metal platinum-manganese dioxide composite and 89wt% activated carbon particles, and fully mix the two in a mixer at room temperature in advance for 30 minutes to obtain a mixture of the two.

[0081] The second step: transfer the mixture to a kneader, add 9wt% water, knead the kneader for 40min, and obtain the kneaded mixture. The total content of metal platinum-manganese dioxide composite, activated carbon particles and water is 100%, wherein the content of...

Embodiment 2

[0086] In this embodiment, the active component, co-catalyst, catalyst carrier and pore-forming agent are mixed, and the mixture is extruded through an extruder, wherein the active component is metal platinum-manganese dioxide composite, and the co-catalyst is alumina. The catalyst carrier is activated carbon particles, the pore-forming agent is water, and the specific surface area of ​​the activated carbon particles is 800m 2 / g, the preparation of supported catalyst can comprise the following steps:

[0087] The first step: Weigh 2wt% metal platinum-manganese dioxide composite, 0.2wt% alumina, and 89.8wt% activated carbon particles, and fully mix the three in a mixer at room temperature in advance, and the mixing time is 30min , to obtain a mixture of the three.

[0088] Step 2: transfer the mixture to a kneader, add water, the water is 8% by weight, and knead for 40 minutes to obtain a kneaded mixture.

[0089] Step 3: Add the kneaded mixture into the single-screw extrude...

Embodiment 3

[0092] In this embodiment, the active component, activator, catalyst carrier and pore-forming agent are mixed, and the mixture is extruded through an extruder, wherein the active component is a metal platinum-manganese dioxide composite, and the activator is graphene. The catalyst carrier is activated carbon particles, the pore-forming agent is water, and the specific surface area of ​​the activated carbon particles is 800m 2 / g, the preparation of supported catalyst comprises the following steps:

[0093] The first step: Weigh 2wt% metal platinum-manganese dioxide composite, 0.2wt% graphene, and 89.8wt% activated carbon particles, and fully mix the three in a mixer at room temperature in advance, and the mixing time is 30min , to obtain a mixture of the three.

[0094] Step 2: transfer the mixture to a kneader, add water, the water is 8wt% by weight, and knead for 40min to obtain a kneaded mixture.

[0095] Step 3: Add the kneaded mixture into the single-screw extruder; the...

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Abstract

The invention discloses a supported catalyst material, which comprises an active component, a catalyst carrier and an activator for activating VOC. The invention provides a supported catalyst material, which has false specific gravity of 0.1-2.0 g / mL and a specific surface area of 200-1500 m<2> / g, has characteristics of high VOC enrichment capacity and good aerodynamic trafficability, can achievethe smooth passing through of air containing VOC molecules, and can improve the adsorption capacity and the treatment capacity of VOC such as formaldehyde in air in the case of rapid air flowing.

Description

technical field [0001] The present invention relates to the field of air purification, and more particularly, it relates to supported catalyst materials. Background technique [0002] In 2013, with the concentrated outbreak of smog in many cities across the country, the issue of air pollution has become a social hot issue, and the market for indoor air treatment has also been established in a short period of time. Air quality has become one of the people's most concerned livelihood issues. Frequent smog and indoor environmental pollution caused by decoration and furniture are increasing. These two factors have given birth to the indoor environmental protection industry represented by air and car purifiers. is showing a vigorous momentum of development. [0003] In view of the current increasingly serious air pollution situation, it is necessary to research and develop air purification products suitable for China's national conditions. Although the industry has launched var...

Claims

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Application Information

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IPC IPC(8): B01J23/34B01J23/42B01J23/60B01J23/656B01J35/10B01D53/86B01D53/44B01D53/72
CPCB01J23/34B01J23/42B01J23/60B01J23/6562B01D53/8687B01D53/8668B01D2259/804B01D2258/06B01J35/618B01J35/617Y02A50/20
Inventor 王猛马新宇
Owner ZHEJIANG CHENWEI ENVIRONMENTAL TECH CO LTD
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