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Device for catalyzing and purifying indoor harmful gas

A harmful gas, catalytic purification technology, applied in the field of air purification devices, can solve the problem of incomplete removal of harmful substances, achieve the effect of large scope and improve air quality

Inactive Publication Date: 2007-01-17
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Its basic function principle of existing air purifier is: when working, the dirty air in the room is filtered and purified layer by layer through the air inlet and the filter tube, and the clean air is blown out from the air outlet, thereby purifying the indoor air; Thermal catalysis partially removes pollutants such as benzene, formaldehyde, ammonia, and carbon monoxide in the air. However, the current devices do not completely remove the above-mentioned harmful substances.

Method used

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  • Device for catalyzing and purifying indoor harmful gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Preparation of hot catalyst:

[0043] La(NO 3 ) 3 , 30%; Sr(NO 3 ) 2 20%; Mn(NO 3 ) 2 10% and Cu(NO 3 ) 2 40% was mixed and dissolved into an aqueous solution, and citric acid was added in a weight ratio of 1:2, and when ammonia water was added to adjust the pH to 9, activated alumina was soaked in the solution for 24 hours, and after the carrier was filtered out, slowly heated and dried, respectively After calcining at 300° C. and 700° C. for 4 hours, repeat the above three times to form a supported nanocomposite oxide catalyst.

[0044] Adopt the thermocatalyst that above-mentioned method obtains, its physicochemical parameter is as follows:

[0045] The specific surface area is 60~80m 2 / g.

[0046] use figure 1 device shown.

[0047] Under the action of the said air-inducing device, the indoor harmful gas enters the device from the gas inlet, and passes through the filter to filter and remove the particles with a particle size greater than 0.3 μm;

[00...

Embodiment 2

[0059] Adopt the same device and method as embodiment 1, wherein:

[0060] La(NO 3 ) 3 , 30%; Sr(NO 3 ) 2 20%; Mn(NO 3 ) 2 20% and Cu(NO 3 ) 2 30% was mixed and dissolved into an aqueous solution, and citric acid was added in a weight ratio of 1:2. When ammonia water was added to adjust the pH to 9, activated alumina was soaked in the solution for 24 hours, and the carrier was filtered out and slowly heated and dried. After calcining at 300° C. and 700° C. for 4 hours, repeat the above three times to form a supported nanocomposite oxide catalyst.

[0061] Adopt the thermocatalyst that above-mentioned method obtains, its physicochemical parameter is as follows:

[0062] The specific surface area is 78m2 / g.

[0063] The air volume of indoor harmful gases in the device: 800 cubic meters per hour, the thermocatalytic temperature is 200 ℃, adopt the method stipulated in the national standard "Indoor Air Quality Standard" (GB / T18883-2002) of the People's Republic of China, ...

Embodiment 3

[0071] Adopt the same device and method as embodiment 1, wherein:

[0072] La(NO 3 ) 3 , 30%; Sr(NO 3 ) 2 20%; Mn(NO 3 ) 2 30% and Cu(NO 3 ) 2 20% was mixed and dissolved into an aqueous solution, and citric acid was added in a weight ratio of 1:2, and when ammonia water was added to adjust the pH to 9, activated alumina was soaked in the solution for 24 hours, the carrier was filtered out, and after slowly heating and drying, respectively After calcining at 300° C. and 700° C. for 4 hours, repeat the above three times to form a supported nanocomposite oxide catalyst.

[0073] Adopt the thermocatalyst that above-mentioned method obtains, its physicochemical parameter is as follows:

[0074] The specific surface area is 82m 2 / g.

[0075] The air volume of indoor harmful gases in the device: 1200 cubic meters per hour, and the thermocatalytic temperature is 220°C. The method stipulated in the national standard "Indoor Air Quality Standard" (GB / T18883-2002) of the Peop...

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Abstract

An apparatus for catalytically cleaning the harmful gas in room is composed of filter, thermal catalyzing unit, heater, photocatalyzing unit, negative ion generator, moistener and draught fan.

Description

[0001] Field [0002] The invention relates to an air purification device. Background technique [0003] With the continuous improvement of people's living standards, people's requirements for indoor air quality are getting higher and higher, and air purifiers have also emerged as the times require. [0004] Its basic function principle of existing air purifier is: when working, the dirty air in the room is filtered and purified layer by layer through the air inlet and the filter tube, and the clean air is blown out from the air outlet, thereby purifying the indoor air; Thermal catalysis partially removes pollutants such as benzene, formaldehyde, ammonia, and carbon monoxide in the air. However, the current devices do not completely remove the above-mentioned harmful substances. Contents of the invention [0005] The technical problem to be solved by the present invention is to disclose a device and method for catalytically purifying indoor harmful gases. [0006] The devi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86F24F3/16
Inventor 徐菁利孙彦刚
Owner SHANGHAI UNIV OF ENG SCI
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