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Method for purifying household coal stove flue gas

A flue gas purification and coal furnace technology, applied in the field of air purification, can solve the problems of polluted environment, small scale, no purification equipment and methods, etc., and achieve the effect of reducing pollution and reducing content

Inactive Publication Date: 2016-02-03
华玉叶
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the coal-fired stoves used by residents for heating and cooking, due to their small scale and irregular use time, it is difficult to carry out large-scale treatment, so there is no corresponding purification equipment and methods, and the smoke generated by them is directly discharged into the atmosphere, polluting The environment is aggravated and the degree of smog is aggravated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for purifying flue gas from a household coal stove, in which a first adsorption component, a catalytic component and a second adsorption component are arranged in sequence at the exhaust end of the household coal stove according to the direction of flue gas flow.

[0027] The first adsorption component is provided with an asbestos fiber filter layer.

[0028] The catalytic member is provided with a catalyst layer, the catalyst comprising the following components,

[0029] A) 5% β-type iron silicate, the composition of the β-type iron silicate is as follows:

[0030] (x+y)M (2 / n) O·xFe 2 o 3 ·yAl 2 o 3 · zSiO 2 ·wH 2 o

[0031] In the formula, M represents a cation, n is the atomic valence of the cation M, x+y+z=1, z / x is 100-220, and w is a positive integer greater than 1;

[0032] B) 10% V doped with Ce 2 o 5 / (MoO 3 ) x (WO 3 ) 1-x with TiO 2 Mixture, Ce:V 2 o 5 / (MoO 3 ) x (WO 3 ) 1-x :TiO 2 The molar ratio is 0.25:1:2, and the titaniu...

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Abstract

The invention discloses a method for purifying household coal stove flue gas. An exhaust end of the household coal stove is provided with a first adsorption part, a catalyzing part and a second adsorption part in a flue gas flowing direction in order. Concentrations of CO, SOx and NOx in the purified household coal stove flue gas are lower than 0.5mg / m<3>, and pollution of the household coal stove upon the atmosphere environment is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of air purification, in particular to a method for purifying flue gas from a household coal stove. Background technique [0002] Studies have shown that in northern China, winter smog is a frequent season, and its pollution level and number of smog days are much higher than those in spring and autumn. [0003] Haze weather is a state of air pollution. Haze is a general expression of the excessive content of various suspended particulate matter in the atmosphere, especially PM2.5 (particulate matter with an aerodynamic equivalent diameter less than or equal to 2.5 microns) is considered to cause haze. The "culprit" of the weather. Sulfur dioxide, nitrogen oxides and inhalable particulate matter are the main components of smog. [0004] In mid-to-early November 2015, in cities such as Shenyang, the smog PM2.5 index reached an astonishing 1140, which is considered to be heavily polluted. In this type of envi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/30B01D53/86B01D53/60B01D53/62F23J15/02B01J29/85
CPCY02A50/20
Inventor 华玉叶
Owner 华玉叶