CN105214492A - A kind of domestic briquet stove flue gas purifying method - Google Patents
A kind of domestic briquet stove flue gas purifying method Download PDFInfo
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- CN105214492A CN105214492A CN201510779058.5A CN201510779058A CN105214492A CN 105214492 A CN105214492 A CN 105214492A CN 201510779058 A CN201510779058 A CN 201510779058A CN 105214492 A CN105214492 A CN 105214492A
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- CN
- China
- Prior art keywords
- flue gas
- adsorption element
- briquet stove
- domestic briquet
- purifying method
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of domestic briquet stove flue gas purifying method, it is placed with the first adsorption element, catalytic member and the second adsorption element at the exhaust end of domestic briquet stove according to the direction order of flow of flue gas.CO, SO in the domestic briquet stove flue gas of purification
xand NO
xconcentration all lower than 0.5mg/m
3, greatly reduce the pollution of domestic briquet stove to atmospheric environment.
Description
Technical field
The present invention relates to technical field of air purification, be specifically related to a kind of domestic briquet stove flue gas purifying method.
Background technology
Research shows, in north of China region, winter, haze belonged to multiple season, and its pollution level and haze number of days will far away higher than spring and autumns.
Haze weather is a kind of atmosphere pollution state, haze is the general statement to suspended particulate substance content overproof various in air, and especially PM2.5 (equivalent aerodynamic diameter is less than or equal to the particle of 2.5 microns) is considered to " arch-criminal " that cause haze weather.Sulfur dioxide, nitrogen oxide and pellet are the main compositions of haze.
In early or mid November, 2015, the city being representative with Shenyang and other places, its haze PM2.5 index reaches surprising 1140, belongs to serious pollution.Under this kind of environment, pollutant not only injures the respiratory system of people, and the organs such as eyes also can be caused to produce burning sensation, the health of damage eyes.
Causing in numerous reasons that winter, haze number of days increased, fire coal is a key factor.For main equipments such as coal-burning boilers, because the requirement of discharging standards, generally gas cleaning can be carried out.But for resident's heating, the coal furnace used of cooking, due to its small scale, service time is irregular, be difficult to process on a large scale, so there is no corresponding cleaning equipment and method, its flue gas produced directly enters air, pollute environment, increase the weight of the degree of haze.
Summary of the invention
The object of the invention is to the flue gas purifying method proposing a kind of applicable domestic briquet stove, it adopts specific filter course, Catalytic Layer and adsorption layer, comes dust, oxysulfide, nitrogen oxide and oxycarbide in the flue gas of purifying domestic household coal stove generation.
For reaching this object, the present invention by the following technical solutions:
A kind of domestic briquet stove flue gas purifying method, it is placed with the first adsorption element, catalytic member and the second adsorption element at the exhaust end of domestic briquet stove according to the direction order of flow of flue gas.
Described first adsorption element is provided with asbestos fibre filter course.
Described catalytic member is provided with catalyst layer, and described catalyst comprises following component,
A) 10% Ce doping spinel oxide MnFe
2o
4, the content of described Ce is 0.6%;
B) 5% zirconium doping spinel oxide ZnAl
2o
4, the content of described Gd is 0.2%;
C) carborundum of surplus.
Preferably, the specific area that described carborundum measures by BET ammonia absorption process is 300-500m
2/ g, its particle diameter is 0.5-10mm.
Described second adsorption element is provided with activated carbon adsorption layer.
Method operation principle of the present invention is as follows:
Fire coal burns in domestic briquet stove, and produce flue gas, flue gas mainly comprises dust, CO, CO
2, SO
x, NO
x.Described flue gas enters exhaust end, and due to the restriction of radiating rate, the temperature of the exhaust end flue gas of domestic briquet stove still belongs to higher temperature, and its temperature is between 50-400 DEG C.
First described flue gas enters the first adsorption element, and described first adsorption element parts are provided with asbestos fibre filter course.Because asbestos belong to exotic material, therefore it can be applicable to described high-temperature flue gas.The materials such as the dust in flue gas, coal ash are under the filtration of asbestos fibre, and be accumulated in the side of asbestos fibre, along with the accumulation of dust, coal ash, it is natural subsidence under gravity, enters the ash discharging hole below the first adsorption element.The material such as dust, coal ash from external opening, can be discharged flue by ash discharging hole.
Air after filtering enters catalytic member subsequently, in catalytic member, under the catalytic action of catalyst, and CO, SO of air state at a middle or low price
xand NO
xthere is catalytic reduction reaction, first the present invention is by the spinel oxides catalyst of high Lacking oxygen, mist (sulfur dioxide is obtained under the high temperature conditions by the high Lacking oxygen of catalyst, nitric oxide and nitrogen dioxide gas) middle oxygen atom, Sulphur Dioxide is made to be elemental sulfur, nitric oxide and nitrogen dioxide gas are converted into nitrogen, then carbon monoxide at high temperature obtains the oxygen in catalyst, this section of catalyst is made still to keep high Lacking oxygen under the effect of carbon monoxide, and monoxide conversion is carbon dioxide, simple substance carbon is converted in second segment catalytic process.Thus realize catalyst while realizing catalytic desulfurization and denitrification, realize the recovery of carbon and recycling of catalyst.
Air after catalysis, enters the second adsorption element.SO remaining in charcoal absorption flue gas in second adsorption element
xand NO
x, after certain interval of time, described second adsorption element is taken out and washes, then eliminate the SO in active carbon
xand NO
x, thus achieve the regeneration of active carbon.
First adsorption element of the present invention, catalytic member and the second adsorption element all can make the shape adapted to chimney size, and exist with the form of grid superimposed layer.In use, directly described first adsorption element, catalytic member and the second adsorption element are placed in the flue of coal stove, after using a period of time, take out cleaning, continue to use.
Method of the present invention, utilizes easy first adsorption element, catalytic member and the second adsorption element to be placed in the flue of domestic briquet stove, greatly reduces the content of pollutant in flue gas, through measuring, and CO, SO in the domestic briquet stove flue gas of purification
xand NO
xconcentration all lower than 0.5mg/m
3.Greatly reduce the pollution of domestic briquet stove to atmospheric environment.
Detailed description of the invention
The present invention is described breathing mask of the present invention by following embodiment.
Embodiment 1
A kind of domestic briquet stove flue gas purifying method, it is placed with the first adsorption element, catalytic member and the second adsorption element at the exhaust end of domestic briquet stove according to the direction order of flow of flue gas.
Described first adsorption element is provided with asbestos fibre filter course.
Described catalytic member is provided with catalyst layer, and described catalyst comprises following component,
A) 10% Ce doping spinel oxide MnFe
2o
4, the content of described Ce is 0.6%;
B) 5% zirconium doping spinel oxide ZnAl
2o
4, the content of described Gd is 0.2%;
C) carborundum of surplus.
Described second adsorption element is provided with activated carbon adsorption layer.
Light domestic briquet stove, the fire coal that coal stove adopts is commercial fire coal, for testing its purification function, after fire coal takes fire 5 minutes, tests the flue gas through purification, after testing, and CO, SO in flue gas
xand NO
xconcentration all lower than 0.5mg/m
3.
Comparative example 1
Component A content 15%, not containing B component, all the other conditions are constant, CO, SO in flue gas
xand NO
xconcentration all higher than 2mg/m
3.
Comparative example 2
B component content 15%, not containing component A, all the other conditions are constant, CO, SO in flue gas
xand NO
xconcentration all higher than 2mg/m
3.
Comparative example 3
The carborundum of component C is replaced with alundum (Al2O3), and all the other conditions are constant, CO, SO in flue gas
xand NO
xconcentration all higher than 2mg/m
3.
Above-described embodiment and comparative example illustrate, there is specific contact between catalyst carrier of the present invention, omit or replace wherein one or more, all can not reach the certain effects of the application, prove to which create cooperative effect.
Applicant states, the present invention illustrates the catalyst of breathing mask of the present invention and employing by above-described embodiment, but the present invention is not limited to above-mentioned catalyst, does not namely mean that the present invention must rely on above-mentioned detailed catalysts and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of auxiliary element, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.
Claims (1)
1. a domestic briquet stove flue gas purifying method, it is placed with the first adsorption element, catalytic member and the second adsorption element at the exhaust end of domestic briquet stove according to the direction order of flow of flue gas.
Described first adsorption element is provided with asbestos fibre filter course.
Described catalytic member is provided with catalyst layer, and described catalyst comprises following component,
A) 10% Ce doping spinel oxide MnFe
2o
4, the content of described Ce is 0.6%;
B) 5% zirconium doping spinel oxide ZnAl
2o
4, the content of described Gd is 0.2%;
C) carborundum of surplus.
Described second adsorption element is provided with activated carbon adsorption layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779058.5A CN105214492A (en) | 2015-11-14 | 2015-11-14 | A kind of domestic briquet stove flue gas purifying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779058.5A CN105214492A (en) | 2015-11-14 | 2015-11-14 | A kind of domestic briquet stove flue gas purifying method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105214492A true CN105214492A (en) | 2016-01-06 |
Family
ID=54983968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510779058.5A Pending CN105214492A (en) | 2015-11-14 | 2015-11-14 | A kind of domestic briquet stove flue gas purifying method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105214492A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171063A (en) * | 1994-11-02 | 1998-01-21 | 波基达拉·格里戈洛瓦 | Catalyst |
| CN1193948A (en) * | 1995-07-03 | 1998-09-23 | 罗纳·布朗克化学公司 | Composition based on zirconium oxide and cerium oxide, preparation method therefor, and use thereof |
| CN101104133A (en) * | 2006-07-12 | 2008-01-16 | 北京华夏金安环保科技有限公司 | Air purifying method and device thereof |
| CN103785255A (en) * | 2013-12-18 | 2014-05-14 | 广西高中阀门制造有限责任公司 | Efficient fuel gas treatment system for boiler |
-
2015
- 2015-11-14 CN CN201510779058.5A patent/CN105214492A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171063A (en) * | 1994-11-02 | 1998-01-21 | 波基达拉·格里戈洛瓦 | Catalyst |
| CN1193948A (en) * | 1995-07-03 | 1998-09-23 | 罗纳·布朗克化学公司 | Composition based on zirconium oxide and cerium oxide, preparation method therefor, and use thereof |
| CN101104133A (en) * | 2006-07-12 | 2008-01-16 | 北京华夏金安环保科技有限公司 | Air purifying method and device thereof |
| CN103785255A (en) * | 2013-12-18 | 2014-05-14 | 广西高中阀门制造有限责任公司 | Efficient fuel gas treatment system for boiler |
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| PB01 | Publication | ||
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Application publication date: 20160106 |