Air purifying method based on photocatalysis and reversible adsorption

An air purification and photocatalysis technology, applied in the field of air purification, can solve the problem of inability to effectively purify pollutants, and achieve the effect of effective purification, improving treatment effect and prolonging treatment time.

Inactive Publication Date: 2019-01-04
L&K ENG SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the concentration of pollutants in the air is not constant, and the treatment efficiency of the air purification device is basically constant once it is set, when the concentration of pol

Method used

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  • Air purifying method based on photocatalysis and reversible adsorption
  • Air purifying method based on photocatalysis and reversible adsorption

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example one

[0036] See figure 1 As shown in the figure, an air purification device based on photocatalysis and reversible adsorption includes a housing 110 provided with an air supply channel, and a fan assembly that drives air to flow through the air supply channel (not shown in the figure) ) And a photocatalytic assembly that catalyzes the air flowing through the air supply channel, the air supply channel is divided into several layers of spaces arranged in sequence along the air conveying direction, and the photocatalytic assembly includes a photocatalyst 121;

[0037] Among them, it also includes a reversible adsorption component that adsorbs the air flowing through the air supply channel, and the reversible adsorption component includes a renewable adsorbent 131, wherein the renewable adsorbent 131 and the photocatalyst 121 are respectively arranged in different layers of space, and The regenerable adsorbent 131 is placed on the air inlet side of the photocatalyst 121...

Example Embodiment

[0049] Example two

[0050] See figure 2 , As shown in the legend: an air purification device based on reversible adsorption and photocatalysis, including a housing 210 provided with an air supply channel, a fan assembly (not shown in the figure) that drives air to flow through the air supply channel, and A photocatalytic assembly that catalyzes the air flowing through the air supply channel. The air supply channel is divided into several layers of spaces arranged in sequence along the air conveying direction. The photocatalytic assembly includes a photocatalyst 221,

[0051] Wherein, it also includes a first reversible adsorption component that adsorbs the air flowing through the air supply channel, and the first reversible adsorption component includes a first renewable adsorbent 231, wherein the first renewable adsorbent 231 and the photocatalyst 221 are mixed. In the same space.

[0052] In one embodiment, the first regenerable adsorbent 231 is a solid adsorbent, and the photo...

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Abstract

The invention discloses an air purifying method based on photocatalysis and reversible adsorption. According to the air purifying method, a reversible adsorbing component firstly adsorbs a certain amount of pollutants in air, so that pollutant concentration of the air passing through a photocatalysis component is lowered, when follow-up air containing different pollutants higher in boiling point or same pollutant lower in concentration flows into an air purifying device, pollutants adsorbed in the reversible adsorbing component is promoted to desorb, and by continuously subjecting follow-up pollutants in the air to photocatalyst catalysis, all the air purifying device is ensured to purify all the pollutants more effectively.

Description

technical field [0001] The invention relates to the field of air purification, in particular to an air purification method based on photocatalysis and reversible adsorption. Background technique [0002] With the improvement of living standards and the acceleration of modernization, people pay more and more attention to air pollution. Vehicle exhaust and home decoration often produce polluting gases, such as formaldehyde, toluene, xylene and other organic pollutants, such as NO X , SO 2 、H 2 S, NH 3 Such inorganic pollutants seriously affect the air environment and pose a threat to human health. [0003] Photocatalysis technology has been widely used in the field of air purification devices. Photocatalysis is a general term for photo-semiconductor materials with photocatalytic function represented by nano-scale titanium dioxide. It can produce strong catalytic degradation function: it can effectively degrade toxic and harmful gases in the air; it can effectively kill a v...

Claims

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Application Information

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IPC IPC(8): B01D53/86
CPCB01D53/86B01D2253/102B01D2255/20707B01D2258/06B01D2259/802B01D2259/804
Inventor 杨政谕
Owner L&K ENG SUZHOU
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