CN107149867A - Combustion product gases environment-friendly low-temperature composite denitration agent and preparation method thereof - Google Patents
Combustion product gases environment-friendly low-temperature composite denitration agent and preparation method thereof Download PDFInfo
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- CN107149867A CN107149867A CN201710421566.5A CN201710421566A CN107149867A CN 107149867 A CN107149867 A CN 107149867A CN 201710421566 A CN201710421566 A CN 201710421566A CN 107149867 A CN107149867 A CN 107149867A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2067—Urea
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/21—Organic compounds not provided for in groups B01D2251/206 or B01D2251/208
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The present invention relates to a kind of combustion product gases environment-friendly low-temperature composite denitration agent and preparation method thereof, belong to flue gas nitrogen oxide process field, in parts by weight, denitrfying agent includes following components：18~32 parts of Organic Alcohols, 25~35 parts of organic amines, 5~10 parts of urea, 4~8 parts of hydroxypropyl methyl celluloses and 16~30 parts of water, and nitrogen content is more than nitrogen content in urea in organic amine, organic alcohol molecule contains 3 to 7 carbon atoms, and organic amine molecule contains 3 to 7 carbon atoms；Then its preparation method adds urea in batches to be first well mixed Organic Alcohol, organic amine and water, and stirs, and is eventually adding hydroxypropyl methyl cellulose, and stir；Compared with prior art, the denitrfying agent in the present invention is nontoxic, is easy to storing, using safety, reaction temperature is relatively low, without using catalyst, and denitration efficiency is high and does not influence efficiency of combustion in stove；Its preparation method is simple to operate, economic and environment-friendly, and input cost is low, suitable for large-scale promotion.
Description
Technical field
The present invention relates to flue gas nitrogen oxide process field, more particularly to a kind of denitrfying agent and preparation method thereof.
Background technology
Air is most basic vital principle for the survival of mankind, because economic increases rapidly, produced by fire coal
Pollution is increasingly severe, and the SO2 and NOx produced in coal-fired flue-gas is main atmosphere pollution, is the main original for causing acid rain
Because of place, while NOx is also a kind of material for causing the environmental problems such as depletion of the ozone layer and photochemical fog, these have become
Restrict the key factor of social development；Each state is all being directed to the research of denitration technology always.
NOx discharge is limited by more and more stricter, and the technology of existing control NOx emission mainly has three kinds：
1）Fractional combustion, embodiment includes low-NOx combustor（LNB）Fired again with fuel.But life of the grading combustion technology to NOx
Into, LNB typically only 30 ~ 50% efficiency limited with emission control effect, then the efficiency fired is about 50 ~ 60%, single using classification
Burning is difficult to the discharge standard for reaching NOx.
2）SCR（SCR）, in the flue gas that the denitrfying agents such as ammonia or urea are injected to 200 ~ 450 DEG C, urging
In the presence of agent, NOx is reduced into N2And H2O.Although SCR system can be relatively easy to achieve 80 ~ 90% NOx removal rate,
But the method has the drawback that：Need to set in catalyst reaction tower, system complex, and catalyst costs height, flue gas and lead
Cause the factor of catalyst failure more, the service life of catalyst only about four years when coal-fired, and also the catalyst of failure needs work
For dangerous fixed-end forces.
3）SNCR method（SNCR）, in the case where high temperature section does not need catalyst, by denitrfying agent（Generally
It is ammonia and urea）NOx is sprayed into be reduced into N2, operating cost is relatively low, and the construction period is short；But it is due to that penetrating is a large amount of low dense
Degree ammoniacal liquor or urea liquid can cause the non-uniform temperature that high temperature reaction zone significantly cools with each region of reaction zone suddenly, so as to lead
Cause denitration efficiency low, only 30% ~ 50%, and influence efficiency of combustion in stove.
The content of the invention
The technical problems to be solved by the invention be to provide it is a kind of it is nontoxic, be easy to storing, denitration efficiency it is high, using peace
Entirely and do not influence combustion product gases environment-friendly low-temperature composite denitration agent of efficiency of combustion in stove and preparation method thereof；Its preparation method is operated
Simply, economic and environment-friendly, input cost is low, suitable for large-scale promotion.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
A kind of combustion product gases environment-friendly low-temperature composite denitration agent, in parts by weight, it includes following components：18~32 parts of Organic Alcohols,
25~35 parts of organic amines, 5~10 parts of urea, 4~8 parts of hydroxypropyl methyl celluloses and 16~30 parts of water, and in the organic amine
Nitrogen content be more than nitrogen content in the urea, the molecule of the Organic Alcohol contains 3 to 7 carbon atoms, the organic amine
Molecule contains 3 to 7 carbon atoms.
Compared with prior art, the beneficial effects of the invention are as follows：
Combustion product gases environment-friendly low-temperature composite denitration agent in the present invention is nontoxic, harmless, tasteless, non-ignitable, not quick-fried, do not corrode, and is easy to
Storing, low using safety, cost, without using catalyst during use, reaction temperature is 500 ~ 900 DEG C, will not cause two
Sulfur oxide is aoxidized, and boiler is not easily caused and blocks or corrodes, the content of aqueous solvent is substantially reduced in product, does not interfere with stove fuel
Burning, collaboration can be preferably played after Organic Alcohol, organic amine, water and urea, hydroxypropyl methyl cellulose are well mixed de-
Nitre is acted on, and denitration efficiency is up to 50% ~ 90%, and ammonia, which is escaped, is less than 3ppm, and hydroxypropyl methyl cellulose can preferably be sent out
Adhesive attraction is waved, property is more stablized when denitrfying agent is used as spray agent, and denitration effect is more preferably.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
As a kind of preferred embodiment of the present invention, the Organic Alcohol is dihydric alcohol or polyalcohol.
Beneficial effect using above-mentioned preferred scheme is：
Dihydric alcohol or polyalcohol hydroxyl are more, and not only reproducibility is stronger, and dissolving organic amine, urea and hydroxyl after being mixed with water
Propyl methocel it is better, advantageously in the collaboration denitration for playing each composition, improve the denitration effect of product
Rate.
As another preferred embodiment of the present invention, the Organic Alcohol is selected from propyl alcohol, butanol, penta to be one or more
The alcohols of alcohol or hexanol.
Beneficial effect using above-mentioned preferred scheme is：Dissolving organic amine, urea and hydroxypropyl after medium alcohol is mixed with water
Methylcellulose it is better, advantageously in the collaboration denitration for playing each composition, improve the denitration efficiency of product.
As another preferred embodiment of the present invention, the organic amine is one-level amine.
Beneficial effect using above-mentioned preferred scheme is：One-level amine reproducibility is stronger, is more prone to occur denitration reaction, with
Urea, hydroxypropyl methyl cellulose co-dissolve are better in organic alcohol and water, advantageously in the association for playing each composition
Same denitration, improves the denitration efficiency of product.
As another preferred embodiment of the present invention, the organic amine is diamine or tertiary amine.
Beneficial effect using above-mentioned preferred scheme is：Diamine or tertiary amine are more containing amino, and reproducibility is stronger, more
Easily occur denitration reaction, it is better in organic alcohol and water with urea, hydroxypropyl methyl cellulose co-dissolve, more added with
Beneficial to the collaboration denitration for playing each composition, the denitration efficiency of product is improved.
As another preferred embodiment of the present invention, the organic amine is selected from propylamine, butylamine, penta to be one or more
The amine of amine or hexylamine.
Beneficial effect using above-mentioned preferred scheme is：Intermediate amine and urea, hydroxypropyl methyl cellulose co-dissolve in
Organic alcohol and water it is better, advantageously in the collaboration denitration for playing each composition, improve the denitration efficiency of product.
As another preferred embodiment of the present invention, the nitrogen content in the organic amine is that the nitrogen in the urea contains
2 to 4 times of amount.
Beneficial effect using above-mentioned preferred scheme is：Advantageously in the collaboration denitration for playing each composition, improve
The denitration efficiency of product.
A kind of preparation method of combustion product gases environment-friendly low-temperature composite denitration agent as described above, it comprises the following steps：First
Organic Alcohol, organic amine and water are mixed evenly, urea is then added in batches, and stir, it is ensured that in organic amine
Nitrogen content is more than the nitrogen content in urea, is eventually adding hydroxypropyl methyl cellulose, and stirs, that is, obtains described burning
Fume environment protection low temperature composite denitration agent.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention is simple to operate, and economic and environment-friendly, input cost is low, suitable for large-scale promotion, the combustion product gases environmental protection prepared
Low temperature composite denitration agent is nontoxic, harmless, tasteless, non-ignitable, not quick-fried, do not corrode, and is easy to storing, low using safety, cost, uses
Without using catalyst in journey, reaction temperature is 500 ~ 900 DEG C, will not cause oxidizing sulfur dioxide, and boiler blocking is not easily caused
Or corrode, the content of aqueous solvent is substantially reduced in product, does not interfere with the burning of stove fuel, denitration efficiency is up to 50% ~ 90%,
Ammonia, which is escaped, is less than 3ppm.
As a kind of preferred embodiment of the present invention, hydroxypropyl methyl cellulose is eventually adding, and after stirring, it is close
Envelope stands 4~8h.
Beneficial effect using above-mentioned preferred scheme is：The combustion product gases environment-friendly low-temperature composite denitration agent property prepared
More stablize, advantageously in the collaboration denitration for playing each composition, improve denitration efficiency.
As the present invention a kind of preferred embodiment, temperature be 40 ~ 80 DEG C under conditions of by Organic Alcohol, organic amine and
Water is mixed evenly.
Beneficial effect using above-mentioned preferred scheme is：Temperature be 40 ~ 80 DEG C under conditions of, Organic Alcohol, organic amine with
Being redissolved after water mixing has the better of urea and hydroxypropyl methyl cellulose, is advantageously taken off in the collaboration for playing each composition
Nitre is acted on, and improves the denitration efficiency of product.
The better embodiment to the present invention is described in further details below.
A kind of combustion product gases environment-friendly low-temperature composite denitration agent, in parts by weight, it includes following components：18~32 parts organic
Alcohol, 25~35 parts of organic amines, 5~10 parts of urea, 4~8 parts of hydroxypropyl methyl celluloses and 16~30 parts of water, and the organic amine
In nitrogen content be more than nitrogen content in the urea, the nitrogen content in the organic amine is preferably the nitrogen content in the urea
2 to 4 times；
The molecule of the Organic Alcohol contains 3 to 7 carbon atoms, preferably one or more to be selected from propyl alcohol, butanol, amylalcohol or hexanol
Alcohols, and the Organic Alcohol is preferably dihydric alcohol or polyalcohol；The molecule of the organic amine contains 3 to 7 carbon atoms, best
For one or more amines selected from propylamine, butylamine, amylamine or hexylamine；The organic amine is preferably one-level amine, and preferably two
First amine or tertiary amine.
A kind of preparation method of combustion product gases environment-friendly low-temperature composite denitration agent as described above, it comprises the following steps：First
Organic Alcohol, organic amine and water are mixed evenly under conditions of temperature is 40 ~ 80 DEG C, urea is then added in batches, and
Stir, it is ensured that the nitrogen content in organic amine is more than the nitrogen content in urea, is eventually adding hydroxypropyl methyl cellulose, and stir
Mix uniform, then 4~8h of sealing and standing, that is, obtain described combustion product gases environment-friendly low-temperature composite denitration agent.
Embodiment
The principles and features of the present invention are described below, and the given examples are served only to explain the present invention, is not intended to limit
Determine the scope of the present invention.
Embodiment 1
A kind of combustion product gases environment-friendly low-temperature composite denitration agent, in parts by weight, it includes following components：27 parts of Organic Alcohols, 32 parts
Organic amine, 8 parts of urea, 7 parts of hydroxypropyl methyl celluloses and 27 parts of water, and nitrogen content in the organic amine is more than the urea
In nitrogen content；
The Organic Alcohol is butanol, amylalcohol and the mixed alcohols of hexanol, and is polyalcohol；The organic amine is butylamine, penta
Amine and the mixed amine of hexylamine, and be one-level amine, tertiary amine.
A kind of preparation method of combustion product gases environment-friendly low-temperature composite denitration agent as described above, it comprises the following steps：First
Organic Alcohol, organic amine and water are mixed evenly under conditions of temperature is 65 DEG C, urea is then added in batches, and stir
Uniformly, it is ensured that the nitrogen content in organic amine is more than the nitrogen content in urea, hydroxypropyl methyl cellulose is eventually adding, and stirs equal
It is even, then sealing and standing 7h, that is, obtain described combustion product gases environment-friendly low-temperature composite denitration agent.
Embodiment 2
A kind of combustion product gases environment-friendly low-temperature composite denitration agent, in parts by weight, it includes following components：20 parts of Organic Alcohols, 28 parts
Organic amine, 6 parts of urea, 5 parts of hydroxypropyl methyl celluloses and 20 parts of water, and during nitrogen content in the organic amine is the urea
3.5 times of nitrogen content；
The Organic Alcohol is propyl alcohol, and is dihydric alcohol；The organic amine is propylamine, and is diamine, one-level amine.
A kind of preparation method of combustion product gases environment-friendly low-temperature composite denitration agent as described above, it comprises the following steps：First
Organic Alcohol, organic amine and water are mixed evenly under conditions of temperature is 50 DEG C, urea is then added in batches, and stir
Uniformly, it is ensured that the nitrogen content in the organic amine is 3.5 times of the nitrogen content in the urea, it is eventually adding hydroxypropyl methyl fine
Dimension element, and stir, then sealing and standing 5h, that is, obtain described combustion product gases environment-friendly low-temperature composite denitration agent.
Embodiment 3
A kind of combustion product gases environment-friendly low-temperature composite denitration agent, in parts by weight, it includes following components：32 parts of Organic Alcohols, 30 parts
Organic amine, 5 parts of urea, 4 parts of hydroxypropyl methyl celluloses and 16 parts of water, and during nitrogen content in the organic amine is the urea
2.5 times of nitrogen content；
The Organic Alcohol is butanol and the mixed alcohols of amylalcohol, and butanol and amylalcohol are polyalcohol；The organic amine is fourth
Amine and the mixed amine of amylamine, butylamine and amylamine are tertiary amine, and are one-level amine.
A kind of preparation method of combustion product gases environment-friendly low-temperature composite denitration agent as described above, it comprises the following steps：First
Organic Alcohol, organic amine and water are mixed evenly under conditions of temperature is 40 DEG C, urea is then added in batches, and stir
Uniformly, it is ensured that the nitrogen content in the organic amine is 2.5 times of the nitrogen content in the urea, it is eventually adding hydroxypropyl methyl fine
Dimension element, and stir, then sealing and standing 4h, that is, obtain described combustion product gases environment-friendly low-temperature composite denitration agent.
Embodiment 4
A kind of combustion product gases environment-friendly low-temperature composite denitration agent, in parts by weight, it includes following components：18 parts of Organic Alcohols, 25 parts
Organic amine, 7.5 parts of urea, 8 parts of hydroxypropyl methyl celluloses and 30 parts of water, and nitrogen content in the organic amine is the urea
In 2 times of nitrogen content；
The Organic Alcohol is propyl alcohol and the mixed alcohols of hexanol, and propyl alcohol is dihydric alcohol, and hexanol is polyalcohol；The organic amine
For propylamine and the mixed amine of hexylamine, and propylamine is diamine, and hexylamine is tertiary amine；Propylamine and hexylamine are one-level amine.
A kind of preparation method of combustion product gases environment-friendly low-temperature composite denitration agent as described above, it comprises the following steps：First
Organic Alcohol, organic amine and water are mixed evenly under conditions of temperature is 80 DEG C, urea is then added in batches, and stir
Uniformly, it is ensured that the nitrogen content in the organic amine is 2 times of the nitrogen content in the urea, is eventually adding hydroxypropyl methyl fiber
Element, and stir, then sealing and standing 8h, that is, obtain described combustion product gases environment-friendly low-temperature composite denitration agent.
Embodiment 5
A kind of combustion product gases environment-friendly low-temperature composite denitration agent, in parts by weight, it includes following components：25 parts of Organic Alcohols, 35 parts
Organic amine, 5 parts of urea, 6 parts of hydroxypropyl methyl celluloses and 23 parts of water, and during nitrogen content in the organic amine is the urea
4 times of nitrogen content；
The Organic Alcohol is propyl alcohol and the mixed alcohols of butanol, and propyl alcohol is dihydric alcohol, and butanol is polyalcohol；The organic amine
For propylamine and the mixed amine of butylamine, and propylamine is diamine, and butylamine is tertiary amine；Propylamine and butylamine are one-level amine.
A kind of preparation method of combustion product gases environment-friendly low-temperature composite denitration agent as described above, it comprises the following steps：First
Organic Alcohol, organic amine and water are mixed evenly under conditions of temperature is 60 DEG C, urea is then added in batches, and stir
Uniformly, it is ensured that the nitrogen content in the organic amine is 4 times of the nitrogen content in the urea, is eventually adding hydroxypropyl methyl fiber
Element, and stir, then sealing and standing 6h, that is, obtain described combustion product gases environment-friendly low-temperature composite denitration agent.
The combustion product gases environment-friendly low-temperature composite denitration agent that is obtained using preparation method of the embodiment 1 into embodiment 5 is nontoxic,
It is harmless, tasteless, non-ignitable, not quick-fried, do not corrode, be easy to storing, it is low using safety, cost, without using catalyst during use,
Reaction temperature is 500 ~ 900 DEG C, will not cause oxidizing sulfur dioxide, and boiler is not easily caused and blocks or corrodes, aqueous solvent in product
Content substantially reduce, do not interfere with the burning of stove fuel, denitration efficiency is up to 50% ~ 90%, ammonia, which is escaped, is less than 3ppm.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of combustion product gases environment-friendly low-temperature composite denitration agent, it is characterised in that in parts by weight, it includes following components：18
~32 parts of Organic Alcohols, 25~35 parts of organic amines, 5~10 parts of urea, 4~8 parts of hydroxypropyl methyl celluloses and 16~30 parts of water, and
Nitrogen content in the organic amine is more than the nitrogen content in the urea, and the molecule of the Organic Alcohol contains 3 to 7 carbon atoms,
The molecule of the organic amine contains 3 to 7 carbon atoms.
2. combustion product gases environment-friendly low-temperature composite denitration agent according to claim 1, it is characterised in that the Organic Alcohol is two
First alcohol or polyalcohol.
3. combustion product gases environment-friendly low-temperature composite denitration agent according to claim 2, it is characterised in that the Organic Alcohol is one
Plant or a variety of alcohols selected from propyl alcohol, butanol, amylalcohol or hexanol.
4. combustion product gases environment-friendly low-temperature composite denitration agent according to claim 1, it is characterised in that the organic amine is one
Level amine.
5. combustion product gases environment-friendly low-temperature composite denitration agent according to claim 1, it is characterised in that the organic amine is two
First amine or tertiary amine.
6. the combustion product gases environment-friendly low-temperature composite denitration agent according to claim 4 or 5, it is characterised in that the organic amine
For one or more amines selected from propylamine, butylamine, amylamine or hexylamine.
7. combustion product gases environment-friendly low-temperature composite denitration agent according to claim 1, it is characterised in that in the organic amine
Nitrogen content is 2 to 4 times of the nitrogen content in the urea.
8. a kind of preparation method of combustion product gases environment-friendly low-temperature composite denitration agent as any one of claim 1 to 7, its
It is characterised by, it comprises the following steps：First Organic Alcohol, organic amine and water are mixed evenly, urea is then added in batches,
And stir, it is ensured that the nitrogen content in organic amine is more than the nitrogen content in urea, is eventually adding hydroxypropyl methyl cellulose, and
Stir, that is, obtain described combustion product gases environment-friendly low-temperature composite denitration agent.
9. the preparation method of combustion product gases environment-friendly low-temperature composite denitration agent according to claim 8, it is characterised in that last
Hydroxypropyl methyl cellulose is added, and after stirring, 4~8h of sealing and standing.
10. the preparation method of combustion product gases environment-friendly low-temperature composite denitration agent according to claim 8, it is characterised in that
Temperature be 40 ~ 80 DEG C under conditions of Organic Alcohol, organic amine and water are mixed evenly.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107812537A (en) * | 2017-11-28 | 2018-03-20 | 张家界鸿燕新材料科技发展有限公司 | A kind of preparation method of denitrating catalyst |
| CN107876090A (en) * | 2017-11-28 | 2018-04-06 | 张家界鸿燕新材料科技发展有限公司 | A kind of denitrating catalyst |
| CN109107373A (en) * | 2018-08-16 | 2019-01-01 | 西安热工研究院有限公司 | A kind of denitrfying agent and preparation method thereof can be used for coal-fired flue gas denitration |
| CN112390451A (en) * | 2020-11-26 | 2021-02-23 | 瑞昌荣联环保科技有限公司 | Waste water treatment process generated in waste acrylic regeneration and recovery process |
| CN113731151A (en) * | 2021-09-13 | 2021-12-03 | 广东新翔星科技股份有限公司 | Composite denitration desulfurizer and preparation method and application thereof |
| CN114452812A (en) * | 2021-12-28 | 2022-05-10 | 深圳华明环保科技有限公司 | Production process of solid-state denitration agent |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005000814A (en) * | 2003-06-12 | 2005-01-06 | Mitsubishi Chemicals Corp | Urea water and denitrating method using the same |
| US20060228283A1 (en) * | 2005-02-28 | 2006-10-12 | Catalytic Solutions, Inc. | Catalyst and method for reducing nitrogen oxides in exhaust streams with hydrocarbons or alcohols |
| CN101502747A (en) * | 2008-02-03 | 2009-08-12 | 王勇 | Flue gas integrated desulphurization and denitrification catalyst |
| CN102068888A (en) * | 2010-12-28 | 2011-05-25 | 北京博奇电力科技有限公司 | Method for simultaneously desulfurizing and denitrating flue gas by wet method |
| WO2012077635A1 (en) * | 2010-12-10 | 2012-06-14 | 日本かおり研究所株式会社 | Remover for harmful oxide and removal method for harmful oxide using same |
| CN102553412A (en) * | 2012-02-10 | 2012-07-11 | 山东大学 | Method for denitrifying flue gas by using amino reducing agent with high reaction activity |
| CN103638805A (en) * | 2013-12-16 | 2014-03-19 | 东方电气集团东方锅炉股份有限公司 | SNCR (selective non-catalytic reduction) smoke denitration method of double-reductant CFB (circulating fluidized bed) boiler |
| CN105498537A (en) * | 2015-11-30 | 2016-04-20 | 许昌学院 | Low-temperature diesel exhaust reducing agent and preparation method thereof |
| CN105664701A (en) * | 2016-04-13 | 2016-06-15 | 长沙紫宸科技开发有限公司 | Method for resourcefully using coking wastewater for preparing ammonia-hydrocarbon denitrifying agent |
| CN105797568A (en) * | 2016-05-18 | 2016-07-27 | 湖南省小尹无忌环境能源科技开发有限公司 | Method for preparing compound denitrification agent by means of waste organic solvents |
| CN105854542A (en) * | 2016-05-23 | 2016-08-17 | 天津市思茂阁科技有限责任公司 | Method for purifying nitrogen-containing oxide tail gas |
| CN106031844A (en) * | 2015-03-20 | 2016-10-19 | 江西永丰博源实业有限公司 | Agent for desulphurization and denitration |
| CN106422768A (en) * | 2016-12-22 | 2017-02-22 | 安徽理工大学 | Method and device for detecting fume in explosion container |
-
2017
- 2017-06-07 CN CN201710421566.5A patent/CN107149867A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005000814A (en) * | 2003-06-12 | 2005-01-06 | Mitsubishi Chemicals Corp | Urea water and denitrating method using the same |
| US20060228283A1 (en) * | 2005-02-28 | 2006-10-12 | Catalytic Solutions, Inc. | Catalyst and method for reducing nitrogen oxides in exhaust streams with hydrocarbons or alcohols |
| CN101502747A (en) * | 2008-02-03 | 2009-08-12 | 王勇 | Flue gas integrated desulphurization and denitrification catalyst |
| WO2012077635A1 (en) * | 2010-12-10 | 2012-06-14 | 日本かおり研究所株式会社 | Remover for harmful oxide and removal method for harmful oxide using same |
| CN102068888A (en) * | 2010-12-28 | 2011-05-25 | 北京博奇电力科技有限公司 | Method for simultaneously desulfurizing and denitrating flue gas by wet method |
| CN102553412A (en) * | 2012-02-10 | 2012-07-11 | 山东大学 | Method for denitrifying flue gas by using amino reducing agent with high reaction activity |
| CN103638805A (en) * | 2013-12-16 | 2014-03-19 | 东方电气集团东方锅炉股份有限公司 | SNCR (selective non-catalytic reduction) smoke denitration method of double-reductant CFB (circulating fluidized bed) boiler |
| CN106031844A (en) * | 2015-03-20 | 2016-10-19 | 江西永丰博源实业有限公司 | Agent for desulphurization and denitration |
| CN105498537A (en) * | 2015-11-30 | 2016-04-20 | 许昌学院 | Low-temperature diesel exhaust reducing agent and preparation method thereof |
| CN105664701A (en) * | 2016-04-13 | 2016-06-15 | 长沙紫宸科技开发有限公司 | Method for resourcefully using coking wastewater for preparing ammonia-hydrocarbon denitrifying agent |
| CN105797568A (en) * | 2016-05-18 | 2016-07-27 | 湖南省小尹无忌环境能源科技开发有限公司 | Method for preparing compound denitrification agent by means of waste organic solvents |
| CN105854542A (en) * | 2016-05-23 | 2016-08-17 | 天津市思茂阁科技有限责任公司 | Method for purifying nitrogen-containing oxide tail gas |
| CN106422768A (en) * | 2016-12-22 | 2017-02-22 | 安徽理工大学 | Method and device for detecting fume in explosion container |
Non-Patent Citations (1)
| Title |
|---|
| 段传和等: "《选择性非催化还原法SNCR烟气脱硝》", 31 January 2012 * |
Cited By (8)
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|---|---|---|---|---|
| CN107812537A (en) * | 2017-11-28 | 2018-03-20 | 张家界鸿燕新材料科技发展有限公司 | A kind of preparation method of denitrating catalyst |
| CN107876090A (en) * | 2017-11-28 | 2018-04-06 | 张家界鸿燕新材料科技发展有限公司 | A kind of denitrating catalyst |
| CN107876090B (en) * | 2017-11-28 | 2020-09-15 | 张家界鸿燕新材料科技发展有限公司 | Denitration catalyst |
| CN109107373A (en) * | 2018-08-16 | 2019-01-01 | 西安热工研究院有限公司 | A kind of denitrfying agent and preparation method thereof can be used for coal-fired flue gas denitration |
| CN109107373B (en) * | 2018-08-16 | 2020-12-11 | 西安热工研究院有限公司 | Denitration agent for coal-fired flue gas denitration and preparation method thereof |
| CN112390451A (en) * | 2020-11-26 | 2021-02-23 | 瑞昌荣联环保科技有限公司 | Waste water treatment process generated in waste acrylic regeneration and recovery process |
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