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Integrated air purification method

An air purification and clean air technology, applied in deodorization, disinfection and other directions, can solve the problems of single catalytic material purification object, low catalytic efficiency, large energy consumption, etc., and achieve long-term stability, large processing capacity, and long service life. Effect

Inactive Publication Date: 2008-06-25
NO 63971 TROOPS PLA
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Problems solved by technology

At the same time, the purification object of catalytic materials is relatively simple, especially for pollutant gases with a concentration lower than 1000ppm, the energy consumption for processing is relatively large
In principle, the photocatalytic technology invented in recent years can treat various gaseous pollutants and microorganisms at a mild temperature, but its catalytic efficiency is very low, and it is basically useless for the treatment of pollutants with large air volumes. how much effect

Method used

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Examples

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Embodiment Construction

[0021] In a volume of 200m 3 In the evaluation box, the polluted air containing 50ppm benzene, 100ppm formaldehyde, 100ppm chloroform, and 100ppm CO is continuously introduced, and the 200m 3 / h air volume enters the regenerative adsorption tower. The adsorption tower is filled with Fe / SBA-15, Ag / mesoporous TiO 2 , mesoporous activated carbon. After 10 hours of adsorption, use 20m 3 The 150°C hot air with air volume per hour is reversely purged for 3 hours to desorb gaseous pollutants. The desorbed gas containing higher concentrations of pollutants enters the low-temperature plasma reactor. The discharge voltage of the power supply is 10 000V, the frequency is 120KHz, and the power is 1000W. Adopt tubular dielectric barrier discharge, single dielectric barrier, the medium is a ceramic tube, the high-voltage electrode is a tube electrode, and the low-voltage electrode is a metal tube. Au / Al Prepared by Improved Deposition and Precipitation Method 2 o 3 Catalyst and Ag / Z...

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Abstract

The invention discloses an integration air purification method with wide-adaptability and high efficiency, which comprises the steps of adsorption regeneration, low temperature plasma catalyst coupling purification and tail gas absorption. First, concentration and enrichment of the harmful gas with the low concentration of 1-100ppm and air volume of 50-1000m<3> / h are carried out by adopting regenertation adsorption plant, so as to obtain clean air capable of being directly discharged; then electric heating in-situ regeneration is carried out to an absorption bed layer, so as to release gaseous pollutant with the concentration of 10-2000ppm and air volume of 2.5-50m<3>h into a low temperature plasma reactor; next, the harmful air is decomposed and mineralized during passing an catalyst bed layer; thereby, harmful microorganism and bacteria is sterilized and the side product in the tail gas is absorbed; as a result, clean air is obtained.

Description

technical field [0001] The invention belongs to the field of environmental protection and relates to an integrated air purification technology capable of effectively eliminating medium and low concentration gaseous pollutants and microorganisms. This technology can be used to improve indoor air quality, especially the air quality of airtight and semi-airtight spaces, and it is also an effective method to solve the emission of gaseous pollutants from small and medium-sized chemical factories, pharmaceutical factories, paper mills and other enterprises. Background technique [0002] With the advancement of science and technology and the development of human civilization, the air quality on which human beings depend is declining, especially the indoor air pollution is still increasing. Indoor air pollution is mainly harmful and refractory organic compound pollution and microbial pollution. Its sources mainly include paint, adhesives, carpets, fabrics, cosmetics, moth repellents...

Claims

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Application Information

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IPC IPC(8): A61L9/014A61L9/22A61L101/04
Inventor 史喜成白书培张忠良王东辉
Owner NO 63971 TROOPS PLA
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