CN108057327A - A kind of purification of pollution air containing ammonia and recycling processing method - Google Patents
A kind of purification of pollution air containing ammonia and recycling processing method Download PDFInfo
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- CN108057327A CN108057327A CN201711352792.9A CN201711352792A CN108057327A CN 108057327 A CN108057327 A CN 108057327A CN 201711352792 A CN201711352792 A CN 201711352792A CN 108057327 A CN108057327 A CN 108057327A
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- ammonium nitrate
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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
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/58—Ammonia
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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
- B01D53/75—Multi-step processes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/18—Nitrates of ammonium
- C01C1/185—Preparation
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C1/00—Ammonium nitrate fertilisers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/106—Peroxides
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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
- B01D2258/06—Polluted air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
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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
-
- 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
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Fertilizers (AREA)
Abstract
Purification and recycling processing method the invention discloses a kind of pollution air containing ammonia, which is characterized in that include the following steps：(1) the pollution air containing ammonia is subjected to partial oxidation in oxidation unit, ammonia partial oxidation is into nitrogen oxides；(2) and then it is introduced into chemosynthesis reaction room, pollutes the nitrogen oxides generated in remaining ammonia not oxidized in air, step (1) and reaction of moisture generation Ammonium Nitrate Aerosols, pollution air are cleaned into purification air；(3) mixture of Ammonium Nitrate Aerosols and purification air enters in separation chamber, and Ammonium Nitrate Aerosols are separated with purification air, collects Ammonium Nitrate Aerosols to make recycling, purification air is discharged by discharge duct in air.The present invention makes the ammonia in pollution air transform into Ammonium Nitrate Aerosols, and purifying contaminated air while does not generate secondary pollution, and the Ammonium Nitrate Aerosols of generation can be used as chemical fertilizer, achieve the purpose that recycling, reduce the operating cost of equipment.
Description
Technical field
The invention belongs to environmental protection/waste gas purification technical fields, are related to a kind of purification and money that air is polluted containing ammonia
The method in source.
Background technology
Pollution air containing ammonia be mainly derived from the fermentation process of animals and plants corpse, the fermentation process of animal excrements,
Concrete admixture, house decorative material etc..The pollution air containing ammonia being discharged into air not only damages health, draws
Respiratory disease is played, also atmospheric environment is polluted, triggers secondary particulate, causes haze weather.It is presently used for containing ammonia
The pollution air treating method of gas mainly has chemical absorption method, catalytic oxidation, adsorbent absorption method and biological degradation method, these
Method tackle low dense DEG C, Wind Volume containing ammonia pollution air when often operating cost it is higher, and be difficult to be fully cleaned up containing ammonia
The pollution air of gas, be easy to cause secondary pollution.
The content of the invention
The present invention provides a kind of purification of pollution air containing ammonia and recycling processing method, makes the ammonia in pollution air
Transform into Ammonium Nitrate Aerosols, purifying contaminated air while does not generate secondary pollution, and the Ammonium Nitrate Aerosols of generation can
As chemical fertilizer, achieve the purpose that recycling, reduce the operating cost of equipment.
A kind of purification of pollution air containing ammonia and recycling processing method, include the following steps：
(1) the pollution air containing ammonia is subjected to partial oxidation in oxidation unit, ammonia partial oxidation is into nitrogen oxides；
(2) will through step (1) treated pollution air is introduced into chemosynthesis reaction room, pollution air in it is not oxidized
Remaining ammonia, the nitrogen oxides that generates in step (1) and reaction of moisture generation Ammonium Nitrate Aerosols, pollution air be cleaned into
Purify air；
(3) gained Ammonium Nitrate Aerosols will be handled through step (2) and the mixture of purification air enters in separation chamber, by nitre
Sour ammonium aerosol is separated with purification air, collects Ammonium Nitrate Aerosols to make recycling, purification air passes through discharge duct
It is discharged into air.
The present invention makes partly to aoxidize generation nitrogen oxides containing the ammonia in ammonia pollution air first；The nitrogen oxidation of generation
Then with remaining ammonia in pollution air and the moisture in pollution air chemosynthesis reaction generation ammonium nitrate gas occurs for object
Colloidal sol so that the pollution air containing ammonia is cleaned；Next, the Ammonium Nitrate Aerosols of generation are separated with the air being cleaned,
So that the Ammonium Nitrate Aerosols generated are collected to make recycling, purification air is discharged to by discharge duct in air.
Ammonia in the present invention in the pollution air containing ammonia changes into Ammonium Nitrate Aerosols, this not only purifies the secondary dirt of eliminating atmosphere
Dye, moreover it is possible to by ammonia recycling, reach the operating cost for reducing equipment.
The principle of the present invention is：Nitrogen is generated after being partially oxidized containing the ammonia that ammonia is polluted in air in oxidation unit
Oxide, nitrogen oxides are one or more of nitric oxide, nitrogen dioxide, nitrous oxide or dinitrogen pentoxide.It generates
Nitrogen oxides with containing ammonia pollute air in ammonia, containing ammonia pollute air in moisture in the reaction chamber further chemistry
Synthetic reaction generates Ammonium Nitrate Aerosols, and the Ammonium Nitrate Aerosols of generation are separated with purification air in separation chamber, ammonium nitrate
Aerosol is collected as chemical fertilizer.
Preferably, the oxidation unit is catalytic oxidizing equipment, thermodynamics burner, biological oxidation apparatus and plasma
One kind in body oxidation unit.
When oxidation unit is catalytic oxidizing equipment, thermodynamics burner or biological oxidation apparatus, into oxidation unit
Oxidant is sprayed into, oxidant is ozone or hydrogen peroxide or the mixture of the two, when oxidant is ozone, ozone and the dirt of penetrating
The molar ratio for contaminating ammonia in air is 10:1~0.1:1；When oxidant is hydrogen peroxide, in the hydrogen peroxide and contamination control of penetrating
Molar ratio be 10:1~0.1:1.
The catalytic oxidizing equipment is more preferably photocatalysis apparatus, thermocatalytic device or plasma catalytic means,
Catalyst in catalytic unit is the noble metals such as gold, silver, palladium, platinum or iron oxide, copper oxide, aluminium oxide, chromium oxide, magnesia,
The metal oxides such as zinc oxide, titanium oxide, zirconium oxide, chromium oxide or nickel oxide or noble metal and metal oxide it is compound；Instead
Temperature is answered between -10 DEG C to 100 DEG C.
The thermodynamics burner, reaction temperature is between 50 DEG C to 200 DEG C.The biological oxidation apparatus is that biology is filled out
Expect tower, bio-trickling filter or zinc cation tower, reaction temperature is between -10 DEG C to 50 DEG C.The plasma reactor corona
What one or more of electric discharges had concurrently in discharge reactor, dielectric impedance reactor, creeping discharge reactor or these types electric discharge answers
Close discharge reactor；Reaction temperature is between -10 DEG C to 100 DEG C.
It is further preferred that the oxidation unit is plasma oxidation device.Plasma oxidation device can be but
It is not limited to corona discharge, dielectric barrier discharge, spark discharge or creeping discharge device.
Preferably, energy density of plasma is 2~20J/L in plasma oxidation device, and the residence time was at 0.01 second
To between 10 seconds, temperature is between -10 DEG C to 100 DEG C.It is further preferred that energy of plasma in plasma oxidation device
Density is 2~6J/L, and the residence time, temperature was between 30~60 DEG C between 0.01 second to 10 seconds.
Preferably, one or both of ozone and hydrogen peroxide are also contained in the pollution air.
Preferably, the chemosynthesis reaction room is catalytic oxidizing equipment, thermodynamics burner, plasma oxygen are disguised
Put, mixer, absorption tower or adsorption tower.Reaction temperature between -10 DEG C to 100 DEG C, the residence time 0.1 second to 10 seconds it
Between, it is further preferred that reaction temperature is between 30~60 DEG C.
Preferably, the process regulation of the chemosynthesis reaction room：Temperature between -10 DEG C to 100 DEG C, stop when
Between between 0.1 second to 10 seconds, gas pressure between 0.5-1.5bar and.It is further preferred that temperature is between 30~60 DEG C.
Preferably, separation chamber is filter device, electrostatic precipitator and absorption tower.
Preferably, separate indoor technological temperature between -10 DEG C to 100 DEG C, between 0.1 second to 10 seconds residence time,
Gas pressure is between 0.5-1.5bar.It is further preferred that temperature is between 30~60 DEG C.
Compared with prior art, the present invention has the advantages that：
Ammonia in pollution air containing ammonia is changed into Ammonium Nitrate Aerosols by the method for the present invention, this not only purifies sky
Gas eliminates secondary pollution, moreover it is possible to by ammonia recycling, reach the operating cost for reducing equipment, can be used for intensive culture
The improvement of the pollution air containing ammonia of field, animals died of illness harmless treatment factory, chemical fertilizer factory, concrete manufactory etc..
Description of the drawings
Fig. 1 is containing ammonia pollution air purification and method of resource flow diagram.
Fig. 2 is plasma oxidation, the mixing chamber nitric acid synthesis ammonium aerosol of the pollution air containing ammonia.Electrostatic separation nitric acid
Ammonium aerosol and purified air stream journey example.
Removal efficiency when Fig. 3 is using plasma technique.
Fig. 4 is the Ammonium Nitrate Aerosols generated.
Specific embodiment
Flow as shown in Figure 1：
(1) ammonia polluted in air is partially oxidized generation nitrogen oxides in oxidation unit；
(2) not oxidized remaining ammonia, the nitrogen oxides generated and the moisture three polluted in air close in chemistry
Reaction is carried out into reative cell and generates Ammonium Nitrate Aerosols so that the pollution air containing ammonia is cleaned；
(3) Ammonium Nitrate Aerosols of generation are separated with purification air in separation chamber so that the ammonium nitrate gas of generation is molten
Glue is collected to make recycling；
(4) purification air is discharged to by discharge duct in air.
Embodiment 1
It is illustrated in figure 2 and aoxidizes the flow instance that ammonia generates ammonium nitrate fertilizer based on plasma part.
(1) the pollution air containing ammonia enters plasma oxidation device, and plasma oxidation device is corona discharge, etc.
Gas ions energy is close, the ammonia in the range of 20~70% is made partly to aoxidize generation nitrogen oxides, pollution air is in plasma
Residence time in oxidation unit is 5s or so, and the temperature in oxidation unit is controlled at 50 DEG C or so.
(2) nitrogen oxides generated is with polluting the remaining ammonia in air containing ammonia, polluting the moisture in air containing ammonia
Chemosynthesis reaction occurs in mixing and reaction chamber and generates Ammonium Nitrate Aerosols so that the pollution air containing ammonia is cleaned, this
In embodiment, mixing and reaction chamber's using plasma oxidation unit, temperature control is at 50 DEG C or so, stop in hybrid reaction room
Between for 5s or so, gas pressure is between 0.5-1.5bar.
(3) purification air is separated with Ammonium Nitrate Aerosols in electrostatic separator, and purification air passes through discharge duct
It is discharged in air, Ammonium Nitrate Aerosols are collected inhibition and generation fertilizer.
Experiment condition：Air quantity 1000m3/ h, initial dense DEG C of ammonia is 80ppm in the pollution air of ammonia, and air is relatively wet
It spends for 80%.
Fig. 3 is the removal efficiency of ammonia when different plasma energy is close.
Fig. 4 is number of the Ammonium Nitrate Aerosols generated under different-grain diameter.
NH is understood by the result of Fig. 33Conversion ratio increase with the increase of energy density of plasma.By the knot of Fig. 4
Fruit understands, works as NH3Oxygenation efficiency control 50%, and when air has certain humidity, generates substantial amounts of ammonium nitrate fertilizer.
The foregoing is merely the specific implementation case of patent of the present invention, but the technical characteristic of patent of the present invention is not limited to
This, any those skilled in the relevant art in the field of the invention, all cover in the special of the present invention by the variation or modification made
Among sharp scope.
Claims (10)
1. purification and the recycling processing method of a kind of pollution air containing ammonia, which is characterized in that include the following steps：
(1) the pollution air containing ammonia is subjected to partial oxidation in oxidation unit, ammonia partial oxidation is into nitrogen oxides；
(2) will through step (1), treated that pollution air is introduced into chemosynthesis reaction room, pollute not oxidized in air remain
Nitrogen oxides and reaction of moisture the generation Ammonium Nitrate Aerosols generated in remaining ammonia, step (1), pollution air are cleaned into purification
Air；
(3) gained Ammonium Nitrate Aerosols will be handled through step (2) and the mixture of purification air enters in separation chamber, by ammonium nitrate
Aerosol is separated with purification air, collects Ammonium Nitrate Aerosols to make recycling, purification air is discharged by discharge duct
In air.
2. purification and recycling processing method according to claim 1, which is characterized in that the oxidation unit is catalysis oxidation
One kind in device, thermodynamics burner, biological oxidation apparatus and plasma oxidation device.
3. purification and recycling processing method according to claim 1, which is characterized in that NH in the oxidation unit3Oxidation
Ratio is controlled 20~70%.
4. purification and recycling processing method according to claim 1, which is characterized in that the oxidation unit is plasma
Oxidation unit, energy density of plasma are 2~20J/L.
5. purification and recycling processing method according to claim 1, which is characterized in that residence time in the oxidation unit
In 0.01~10s, temperature is at -10 DEG C~100 DEG C.
6. purification and recycling processing method according to claim 1, which is characterized in that be free of or contain in the pollution air
There are one or both of ozone and hydrogen peroxide.
7. purification and recycling processing method according to claim 1, which is characterized in that the chemosynthesis reaction room is to urge
Change oxidation unit, thermodynamics burner, plasma oxidation device, mixer, absorption tower or adsorption tower.
8. purification and recycling processing method according to claim 1, which is characterized in that anti-in the chemosynthesis reaction room
Answering temperature control, the residence time is controlled between 0.1~10s between -10 DEG C to 100 DEG C.
9. purification and recycling processing method according to claim 1, which is characterized in that separation chamber is filter device, electrostatic
Dust-extraction unit and absorption tower.
10. purification and recycling processing method according to claim 1, which is characterized in that separating the indoor residence time exists
0.1~10s, temperature is at -10 DEG C~100 DEG C, gas pressure 0.5-1.5bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711352792.9A CN108057327B (en) | 2017-12-15 | 2017-12-15 | Purification and resource treatment method for ammonia-containing polluted air |
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| CN201711352792.9A CN108057327B (en) | 2017-12-15 | 2017-12-15 | Purification and resource treatment method for ammonia-containing polluted air |
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| CN108057327A true CN108057327A (en) | 2018-05-22 |
| CN108057327B CN108057327B (en) | 2020-05-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108816000A (en) * | 2018-06-14 | 2018-11-16 | 杭州兴洋环保科技有限公司 | A kind of recycling processing method of plasma for purification sulfide hydrogen and ammonia pollution air |
| CN111495176A (en) * | 2020-03-27 | 2020-08-07 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | System for removing escaping ammonia and other pollutants in flue gas |
| CN111939733A (en) * | 2019-05-17 | 2020-11-17 | 韩国基础科学支援研究院 | Harmful gas treatment apparatus and method using plasma |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024008884A1 (en) * | 2022-07-06 | 2024-01-11 | Katholieke Universiteit Leuven | Ammonium nitrate production |
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| JPH10141648A (en) * | 1996-11-08 | 1998-05-29 | Toshiba Mach Co Ltd | Method and apparatus for treating waste gas from gas nitriding process |
| CN1258556A (en) * | 1999-12-01 | 2000-07-05 | 上海交通大学 | Equipment and method to exhaust nitridation waste gas and recover residual ammonia |
| CN102764573A (en) * | 2012-07-16 | 2012-11-07 | 广东佳德环保科技有限公司 | Streamer corona plasma flue gas denitrification method |
-
2017
- 2017-12-15 CN CN201711352792.9A patent/CN108057327B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10141648A (en) * | 1996-11-08 | 1998-05-29 | Toshiba Mach Co Ltd | Method and apparatus for treating waste gas from gas nitriding process |
| CN1258556A (en) * | 1999-12-01 | 2000-07-05 | 上海交通大学 | Equipment and method to exhaust nitridation waste gas and recover residual ammonia |
| CN102764573A (en) * | 2012-07-16 | 2012-11-07 | 广东佳德环保科技有限公司 | Streamer corona plasma flue gas denitrification method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108816000A (en) * | 2018-06-14 | 2018-11-16 | 杭州兴洋环保科技有限公司 | A kind of recycling processing method of plasma for purification sulfide hydrogen and ammonia pollution air |
| CN108816000B (en) * | 2018-06-14 | 2020-10-16 | 杭州兴洋环保科技有限公司 | Resourceful treatment method for purifying air polluted by hydrogen sulfide and ammonia gas by using plasma |
| CN111939733A (en) * | 2019-05-17 | 2020-11-17 | 韩国基础科学支援研究院 | Harmful gas treatment apparatus and method using plasma |
| CN111495176A (en) * | 2020-03-27 | 2020-08-07 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | System for removing escaping ammonia and other pollutants in flue gas |
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Effective date of registration: 20180830 Address after: 314000 460, room 11, Wei three road, Haining hi tech Industrial Park, Haining, Jiaxing, Zhejiang Applicant after: Haining blue light environmental protection technology Co., Ltd. Applicant after: HANGZHOU XINGYANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Address before: 310018 18 learning street, Xiasha Higher Education Park, Hangzhou, Zhejiang Applicant before: Zhejiang Gongshang University |
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Denomination of invention: A purification and resource treatment method for polluted air containing ammonia Effective date of registration: 20210712 Granted publication date: 20200522 Pledgee: Hangzhou United Rural Commercial Bank Co.,Ltd. Haining sub branch Pledgor: HAINING LANGUANG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2021330000861 |