Household coal stove flue gas purification method

A flue gas purification and coal furnace technology, applied in the field of air purification, can solve the problems of polluted environment, aggravated smog, irregular use time, etc., and achieve the effect of reducing the content of pollutants and reducing pollution

Inactive Publication Date: 2016-05-25
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

[0024] 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.

[0025] The first adsorption component is provided with an asbestos fiber filter layer.

[0026] The catalytic member is provided with a catalyst layer, the catalyst comprising the following components,

[0027] A) 3% silver and palladium, the mol ratio of silver and palladium is 2:5;

[0028] B) 12% 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 titanium dioxide is an anatase crystal form, and the x is 0.1-0.5;

[0029] C) SAPO-34 molecular sieve in the balance.

[0030] The second adsorption member is provided with an activated carbon adsorption layer.

[0031] Ignite the domestic coal ...

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Abstract

The invention discloses a household coal stove flue gas purification method; a first adsorption component, a catalytic component and a second adsorption component are arranged at the exhaust end of a household coal stove in the flue gas flow direction in order. The concentrations of CO, SOx and NOx in purified household coal stove flue gas are all lower than 0.5 mg / m<3>, and pollution of the household coal stove to the atmospheric 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 & AuthorityApplications(China)
IPC IPC(8): B01D53/86B01D53/60B01D53/62B01D46/00B01J29/85
CPCY02A50/20
Inventor华玉叶
Owner华玉叶