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A kind of indoor air purification method

A technology for indoor air and purifiers, applied in the field of purification, can solve problems such as unsatisfactory removal of toxic gases, achieve the effects of improving catalytic effects, prolonging service life, and ensuring purification efficiency

Active Publication Date: 2018-07-13
南京绿征环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing air purification methods mainly remove particles, etc., but for NO in the air X , CO X , SO X The removal effect of toxic gases is not ideal

Method used

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  • A kind of indoor air purification method

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Experimental program
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Effect test

Embodiment 1

[0035] An air purification method comprising two steps of catalytic oxidation and liquid-phase absorption, the catalytic oxidation step includes completing desulfurization through a biofilm catalytic plate, and the biofilm catalytic plate is inoculated with Thiobacillus ferrosulfide; the following reactions are completed through the catalyst:

[0036] 2NO+O 2 =2NO 2

[0037] 2CO+O 2 =2CO 2

[0038] CO+NO=CO 2 +1 / 2N 2 ,

[0039] The catalyst is made of 33%Al 2 o 3 , 27%Fe 2 o 3 , 13%CeO 2 , 14%ZrO 2and 13% Bi 2 o 3 Composition; the surface of the biofilm catalytic plate is provided with through holes, the distance between the through holes is 0.6cm, and the inner surface of the through holes is coated with Fe 2 o 3 layer.

[0040] Liquid phase absorption completes the following reactions through the absorption liquid:

[0041] 3NO 2 +H 2 O=2HNO 3 +NO

[0042] NO+NO 2 +H 2 O=2HNO 2 ,

[0043] The absorption liquid is composed of 82% tris and 18% hydroch...

Embodiment 2

[0045] An air purification method, comprising two steps of catalytic oxidation and liquid phase absorption, the catalytic oxidation step includes completing desulfurization through a biofilm catalytic plate, the biofilm catalytic plate is inoculated and mounted with Thiobacillus ferrosulfide; and completing the following reactions through the catalyst :

[0046] 2NO+O 2 =2NO 2

[0047] 2CO+O 2 =2CO 2

[0048] CO+NO=CO 2 +1 / 2N 2 ,

[0049] The catalyst is made of 39%Al 2 o 3 , 21%Fe 2 o 3 , 17%CeO 2 , 12%ZrO 2 and 11% Bi 2 o 3 Composition; the surface of the biofilm catalytic plate is provided with through holes, the distance between the through holes is 0.6cm, and the inner surface of the through holes is coated with Fe 2 o 3 layer.

[0050] Liquid phase absorption completes the following reactions through the absorption liquid:

[0051] 3NO 2 +H 2 O=2HNO 3 +NO

[0052] NO+NO 2 +H 2 O=2HNO 2 ,

[0053] The absorption liquid is composed of 92% tris an...

Embodiment 3

[0055] An air purification method comprising two steps of catalytic oxidation and liquid-phase absorption, the catalytic oxidation step includes completing desulfurization through a biofilm catalytic plate, and the biofilm catalytic plate is inoculated with Thiobacillus ferrosulfide; the catalyst completes the following reactions:

[0056] 2NO+O 2 =2NO 2

[0057] 2CO+O 2 =2CO 2

[0058] CO+NO=CO 2 +1 / 2N 2 ,

[0059] The catalyst is made of 36%Al 2 o 3 , 24%Fe 2 o 3 , 15%CeO 2 , 13%ZrO 2 and 12% Bi 2 o 3 Composition; the surface of the biofilm catalytic plate is provided with through holes, the distance between the through holes is 0.6cm, and the inner surface of the through holes is coated with Fe 2 o 3 layer.

[0060] Liquid phase absorption completes the following reactions through the absorption liquid:

[0061] 3NO 2 +H 2 O=2HNO 3 +NO

[0062] NO+NO 2 +H 2 O=2HNO 2 ,

[0063] The absorption liquid is composed of 87% tris and 13% hydrochloric acid,...

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Abstract

The invention discloses an indoor air purification method. The indoor air purification method includes the two steps of catalytic oxidation and liquid-phase scrubbing, wherein according to the step of catalytic oxidation, the following reaction of 2NO+O2=2NO22CO+O2=2CO2CO+NO=CO2+1 / 2N2 is completed through a catalyst, wherein the catalyst is composed of 33%-39% of Al2O3, 21%-27% of Fe2O3, 13%-17% of CeO2, 12%-14% of ZrO2 and 11%-13% of Bi2O3; and according to the step of liquid-phase scrubbing, the following reaction of 3NO2+H2O=2HNO3+NONO+NO2+H2O=2HNO2 is completed through an absorption solution, wherein the absorption solution is composed of 82%-92% of trihydroxymethyl aminomethane with the concentration of 0.1 mol / L and 8%-18% of hydrochloric acid with the concentration of 0.1 mol / L. An air purifier has the beneficial effect of effectively removing NOX and COX in indoor air.

Description

technical field [0001] The invention relates to a purification method, in particular to an indoor air purification method. Background technique [0002] Air purification is in demand in home, medical, and industrial fields. In the home field, single-unit household air purifiers are the mainstream products in the market, which can solve air pollution caused by volatile organic compounds in indoors, underground spaces, and cars due to decoration or other reasons. problem, due to the persistent and uncertain characteristics of the release of air pollutants in relatively closed spaces. However, the existing air purification methods mainly remove particles, etc., but for NO in the air X , CO X , SO X The removal effect of such toxic gases is not ideal. Contents of the invention [0003] The purpose of the invention of the present invention is to: aim at the problem of above-mentioned existence, provide a kind of effectively remove NO in indoor air X and CO X method of ind...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F1/02F24F13/28
CPCF24F13/28F24F8/10F24F8/15F24F8/167
Inventor 张杰
Owner 南京绿征环保科技有限公司