CN106139850A - A kind of energy-efficient gas-liquid coupling oxidation sweetening denitrification apparatus - Google Patents
A kind of energy-efficient gas-liquid coupling oxidation sweetening denitrification apparatus Download PDFInfo
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- CN106139850A CN106139850A CN201610731455.XA CN201610731455A CN106139850A CN 106139850 A CN106139850 A CN 106139850A CN 201610731455 A CN201610731455 A CN 201610731455A CN 106139850 A CN106139850 A CN 106139850A
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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
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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
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
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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
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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
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- 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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Abstract
nullThe invention discloses a kind of energy-efficient gas-liquid coupling oxidation sweetening denitrification apparatus，Including absorption tower，Bottom, absorption tower is provided with gas approach，Have in absorption tower arrange from top to bottom except mist section、Absorber portion、Oxidation panel、Enriching section，Except mist section includes the one-level demister that is arranged on top, absorption tower，Washing layer it is provided with below one-level demister，Absorber portion includes being positioned at the absorbed layer below washing layer，Enriching section includes being arranged on concentrating spraying layer and being positioned at the concentration basin at the bottom of absorbing tower above gas approach，Oxidation panel includes that inside is connected with the oxidation pond of ozone，Oxidation pond is arranged on absorbed layer and concentrates between spraying layer and be connected with concentrating spraying layer，It is positioned at oxidation pond on desulfurizing tower oxidation panel and is arranged over hydrogenperoxide steam generator access tube，Except mist section includes the absorption cell that connects with absorption tower tower top，Absorption cell is arranged on the side on absorption tower，Absorption cell is provided with exhanst gas outlet，Two grades of demisters it are provided with in exhanst gas outlet.The present invention has the advantage improving adsorption efficiency, saving the energy.
Description
Technical field
The present invention relates to the ammonia process of desulfurization denitrification apparatus of a kind of coal-fired flue-gas, a kind of energy-efficient gas-liquid
Coupling oxidation sweetening denitrification apparatus, belongs to the environmental technology field controlling the discharge of pollution that caused by coal burning thing.
Background technology
The SO produced in coal-fired flue-gas2、NOxDeng pollutant, atmospheric environment, ecology and human health there are is high risks, with
Environmental requirement increasingly stricter, SO2And NOxAlso progressively strengthening Deng the control reduced discharging.
The technique being applied to flue gas desulfurization has a lot, and wet desulfurizing process is to apply most sulfur methods at present, and ammonia
Method desulfurization absorbs SO in flue gas using ammonia or ammonium sulfite etc. as absorbent as the one of wet desulfurizing process, its device2,
At home and abroad wet desulfurizing process is applied relatively broad.It is characterized in that desulfurization degree is high, it is more stable to run, desulfurizing byproduct sulphuric acid
Ammonium is the agrochemical that a kind of use value is higher, and whole system does not produce waste water or waste residue.
But, currently also there is a little problem in the ammonia process of desulfurization: containing to SO in circulation fluid2There is the ammonium sulfite of Absorption
While, also contain substantial amounts of ammonium sulfate composition, cause a large amount of consumed energies of recycle liquid pump power to waste；Ammonia absorbent consumption
Problem that is big and that there is the escaping of ammonia；The portable droplet of exiting flue gas and aerosol, it is difficult to remove completely；Producing ammonium sulfate byproduct quality
The highest, overall device plant investment and operating cost are more high.Therefore, ammonia process of desulfurization denitrification apparatus structure still has bigger changing
Entering space, research and development are efficient, stable, the wet desulphurization denitrification apparatus of low cost, have the strongest realistic meaning and promotional value.
Summary of the invention
It is an object of the invention to provide the energy-efficient gas-liquid coupling of a kind of loss improving adsorption efficiency, reduction energy
Close oxidation sweetening denitrification apparatus, thus reach energy-efficient purpose.
The present invention adopts the following technical scheme that a kind of energy-efficient gas-liquid coupling oxidation sweetening denitrification apparatus, including inhaling
Receiving tower, bottom, absorption tower is provided with gas approach, has except mist section and be positioned at the absorber portion below except mist section, except mist section in absorption tower
Including being arranged on the one-level demister on top, absorption tower, being provided with washing layer below one-level demister, absorber portion includes being positioned at washing
Absorbed layer below Ceng, described absorption tower bottommost is enriching section, is provided with oxidation panel, enriching section bag between enriching section and absorber portion
Including and be arranged on concentrating spraying layer and being positioned at the concentration basin at the bottom of absorbing tower above gas approach, described oxidation panel includes internal logical
Having the oxidation pond of ozone, oxidation pond is arranged on absorbed layer and concentrates between spraying layer and be connected with concentrating spraying layer, described desulfurization
It is positioned at oxidation pond on tower oxidation panel and is arranged over hydrogenperoxide steam generator access tube, described include connecting with absorption tower tower top except mist section
Absorption cell, absorption cell is arranged on the side on absorption tower, and absorption cell is provided with exhanst gas outlet, is provided with two grades except mist in exhanst gas outlet
Device.
Described absorption cell is v-shaped structure, and one end of the absorption cell of v-shaped structure connects with absorption tower tower top, and described flue gas goes out
Mouth is arranged on the other end of the absorption cell of v-shaped structure, and the V-type angle of the absorption cell of v-shaped structure is 40 ° ~ 90 °.
Connect on described oxidation pond and have the ozonator being positioned at outside absorption tower.
Oxidation distributor pipe it is provided with in described oxidation pond.
Described oxidation pond is arranged over aoxidizing catch tray.
It is provided with absorption catch tray between described first absorber and secondary absorber, absorption catch tray offers gas and leads to
Road.
Described absorption tower is externally provided with ammonium sulfate crystallization system, and ammonium sulfate crystallization system includes and following that described absorber portion is connected
Annular groove and the cyclone separator being connected with described enriching section, cyclone separator is connected with in turn centrifuge and exsiccator, described
Connect on centrifuge and have the centrifugal liquid recovery channel being passed in circulating slot, described exsiccator has heat exchange structure.
Described circulating slot is provided with ammonia and supplements pipe
Being provided with cooling spray thrower at described gas approach, described cooling spray thrower is connected with described concentration basin.
Operationally, about 200 DEG C of flue gases of temperature are controlled the present invention by gas approach temperature after cooling spray thrower cooling
70 DEG C ~ 80 DEG C, flue gas ascends into oxidation panel and absorber portion, and flue gas returns through absorption catch tray after absorbed layer reacts with absorbing liquid
Return circulating slot and form circulation, SO in flue gas2And NOxReacted with ammonia by two grades of absorbed layers, catch tray and first order absorption layer respectively
Enter after absorption except mist section is except mist.Absorber portion flue gas flow rate about controls at 2.5 ~ 4m/s, and optimum flow rate is 3 ~ 3.5 m/s.With suction
Receiving the reacted flue-gas temperature of liquid to control at 50 ~ 60 DEG C, reacted flue gas passes sequentially through one-level demister, through v-shaped structure
Absorption cell, then entered by flue through two grades of demisters and discharge after chimney.One-level and two grades of demister junctions are provided with V-type work
Skill tank, arranges V-type angle 40 ° ~ 90 ° according to exhaust gas volumn, can increase the contact area of flue gas and the water surface, both can be by having absorbed
Effect reduces the escaping of ammonia, more effectively removes the drop in flue gas and aerosol further through effect of inertia.
At oxidation panel, producing ozone by ozonator, ozone is delivered to oxidation pond, is utilized ozone by oxidation distributor pipe
Residue NO in flue gas is oxidized to the high-valence state nitrogen oxides that dissolubility is higher by strong oxidizing property, joins with hydrogenperoxide steam generator simultaneously
Close collaborative as strong oxidizer, it is possible to produce the hydroxyl radical free radical of more strong oxidizing property, quickly and efficiently oxidative salt
And nitrite, solve tradition simultaneously and utilize the problem that pump energy expenditure is big.Using Novel tower internal oxidition mode, oxidation panel is arranged
On the top of enriching section, the advantage being configured so that is compared with conventional tower internal oxidition, it is not necessary to extract circulation bottom desulfurizing tower
Liquid, can effectively reduce cyclic absorption liquid measure, the absorption rate of oxidation reinforced dose；Compare conventional tower external oxidation simultaneously, save
Space without additionally setting up an oxidation unit, simplified system, reduce equipment investment.
Oxidation overflowing liquid concentrates after concentrating spraying layer, and bottom concentrated solution enters cooling spray thrower by concentration cycles pump
Utilize the flue gas heat evaporation that heats up to accelerate crystallization and obtain solid content 10 ~ 15% concentrated solution, and after obtain solid content through swirl concentrator
The concentrated solution of 40% ~ 50%, then solid content reaches 95 ~ 97% after drying machine by centrifugation, last drying device obtains solid content and is more than
The by-product ammonium sulfate of 99%.
Present invention have the advantage that 1) coordinate entire work flow integration operation, carry out in absorption tower except mist cleans, absorbs
Reaction, absorbing liquid oxidation, absorbing liquid concentrate.2) two-stage absorbed layer is set so that it is only partial oxidation absorbing liquid, improves and absorb effect
Rate.3) using Novel tower internal oxidition mode, oxidation panel is arranged on the top of enriching section, and the advantage being configured so that is and conventional tower
Internal oxidition is compared, it is not necessary to extracts circulation fluid bottom desulfurizing tower, can effectively reduce cyclic absorption liquid measure, the suction of oxidation reinforced dose
Receive utilization rate；Compare conventional tower external oxidation simultaneously, save space without additionally setting up an oxidation unit, simplified system, reduces
Equipment investment.4) one-level and two grades of demister junctions are provided with v-shaped structure absorption cell, according to exhaust gas volumn arrange V-type angle 40 ° ~
90 °, increase the contact area of flue gas and the water surface, both can reduce the escaping of ammonia by Absorption, and more have further through effect of inertia
Effect removes the drop in flue gas and aerosol.5) ozone is utilized to combine gas-liquid coupling with hydrogenperoxide steam generator in absorbing liquid oxide regions
Close oxidation, overcome conventionally employed air oxidation process to there are oxidation cycle length and shortcoming, both connection simultaneously such as pump energy expenditure is big
Conjunction can produce the hydroxyl radical free radical of more strong oxidizing property, quickly and efficiently oxidative salt and nitrite, thus very
Just realizing the minimizing of flue gas desulfurization and denitrification technology, recycling, resource.
Accompanying drawing explanation
Fig. 1 be the present invention energy-efficient gas-liquid coupling a kind of embodiment of oxidation sweetening denitrification apparatus structural representation.
In figure, 1 chimney；2 exhanst gas outlets；3 two grades of demisters；4 absorption cells；5 absorption towers；6 one-level demisters；7 washing layers；
8 first order absorption layers；9 absorb catch tray；10 2 grades of absorbed layers；11 oxidation catch trays；12 oxidation distributor pipes；13 ozonators；
14 smoke inlets；15 cooling spray throwers；16 concentration cycles pumps；17 oxidation ponds；18 concentrate spraying layer；19 concentration basins；20 absorptions follow
Ring pump；21 circulating slots；22 sulfur ammonium pumps；23 swirl concentrators；24 centrifuges；25 exsiccators；26 hydrogenperoxide steam generator access tubes；27
Ammonia supplements pipe.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
The present invention energy-efficient gas-liquid coupling a kind of embodiment of oxidation sweetening denitrification apparatus structure as it is shown in figure 1, this
The gas-liquid coupling oxidation sweetening denitrification apparatus of embodiment, including absorption tower 5, bottom, absorption tower 5 is provided with gas approach 14, and flue gas enters
It is provided with cooling spray thrower 15 at mouth 14, has in absorption tower 5 except mist section and be positioned at the absorber portion below except mist section, except mist section includes
Being arranged on the one-level demister 6 on top, absorption tower, be provided with washing layer 7 below one-level demister 6, absorber portion includes being positioned at washing layer
The absorbed layer of lower section, described absorbed layer includes first absorber 8 and is positioned at the secondary absorber 10 below first absorber 8, one
It is provided with absorption catch tray 9 between level absorber 8 and secondary absorber 10, absorbs and offer gas passage on catch tray 9.Described suction
Receiving tower bottommost is enriching section, is provided with oxidation panel between enriching section and absorber portion, and enriching section includes being arranged on above gas approach
Concentrate spraying layer 18 and be positioned at the concentration basin 19 at the bottom of absorbing tower, described cooling spray thrower 15 is connected with described concentration basin 19,
Pipeline between cooling spray thrower 15 and concentration basin 19 is provided with concentration cycles pump 16, and described oxidation panel includes that inside is connected with ozone
Oxidation pond 17, on oxidation pond 17 connect have the ozonator 13 being positioned at outside absorption tower, be provided with in oxidation pond 17 oxidation distribution
Pipe 12, oxidation pond 17 is arranged on absorbed layer and concentrates between spraying layer and be connected with concentrating spraying layer 18, setting above oxidation pond 17
There is oxidation catch tray 11, described desulfurizing tower oxidation panel is positioned at oxidation pond 17 and is arranged over hydrogenperoxide steam generator access tube 26, institute
Stating except mist section includes the absorption cell 4 that connects with absorption tower tower top, absorption cell 4 is arranged on the side on absorption tower 5, absorption cell 4 sets
Having exhanst gas outlet 2, be provided with two grades of demisters 3 in exhanst gas outlet 2, exhanst gas outlet 2 connects chimney 1.The absorption of the present embodiment
Groove 4 is v-shaped structure, and one end of the absorption cell 4 of v-shaped structure connects with absorption tower 5 tower top, and described exhanst gas outlet 2 is arranged on V-arrangement knot
The other end of the absorption cell of structure, the V-type angle of the absorption cell of v-shaped structure is 40 ° ~ 90 °.
Described absorption tower 5 is externally provided with ammonium sulfate crystallization system, and ammonium sulfate crystallization system includes being connected with described absorber portion
Circulating slot 21 and the cyclone separator 23 being connected with described enriching section, described circulating slot is provided with ammonia and supplements pipe 27, and oxidation follows
Pipeline between annular groove 21 and absorber portion is provided with absorbent recirculation pump 20, on the pipeline between concentration basin 19 and cyclone separator 23
Being provided with thiamine pump 22, cyclone separator 23 is connected with in turn centrifuge 24 and exsiccator 25, described centrifuge 24 connects to be had
The centrifugal liquid recovery channel being passed in circulating slot 21, described exsiccator 25 has heat exchange structure.
Operationally, about 200 DEG C of flue gases of temperature are controlled the present invention by gas approach temperature after cooling spray thrower cooling
70 DEG C ~ 80 DEG C, flue gas ascends into oxidation panel and absorber portion, and flue gas returns through absorption catch tray after absorbed layer reacts with absorbing liquid
Return circulating slot and form circulation, SO in flue gas2And NOxReacted with ammonia by two grades of absorbed layers, catch tray and first order absorption layer respectively
Enter after absorption except mist section is except mist.Absorber portion flue gas flow rate about controls at 2.5 ~ 4m/s, and optimum flow rate is 3 ~ 3.5 m/s.With suction
Receiving the reacted flue-gas temperature of liquid to control at 50 ~ 60 DEG C, reacted flue gas passes sequentially through one-level demister, through v-shaped structure
Absorption cell, then entered by flue through two grades of demisters and discharge after chimney.One-level and two grades of demister junctions are provided with V-type work
Skill tank, arranges V-type angle 40 ° ~ 90 ° according to exhaust gas volumn, can increase the contact area of flue gas and the water surface, both can be by having absorbed
Effect reduces the escaping of ammonia, more effectively removes the drop in flue gas and aerosol further through effect of inertia.
At oxidation panel, producing ozone by ozonator, ozone is delivered to oxidation pond, is utilized ozone by oxidation distributor pipe
Residue NO in flue gas is oxidized to the high-valence state nitrogen oxides that dissolubility is higher by strong oxidizing property, joins with hydrogenperoxide steam generator simultaneously
Close collaborative as strong oxidizer, it is possible to produce the hydroxyl radical free radical of more strong oxidizing property, quickly and efficiently oxidative salt
And nitrite, solve tradition simultaneously and utilize the problem that pump energy expenditure is big.When being embodied as, often oxidation 1L circulation fluid needs to consume
Ozone amount 50 ~ 200L, optimised quantity is 100 ~ 150L, and ozone concentration is 0.01 ~ 0.02g/L；Hydrogenperoxide steam generator consumption is 50 ~
200ml, optimised quantity is 100 ~ 150ml, and hydrogen peroxide concentration is 25% ~ 35%, and optium concentration is 30%；Ammonium sulfite solution controls pH
Value 4 ~ 6, optimum is 5.5.Using Novel tower internal oxidition mode, oxidation panel is arranged on the top of enriching section, and be configured so that is excellent
Point is compared with conventional tower internal oxidition, it is not necessary to extracts circulation fluid bottom desulfurizing tower, can effectively reduce cyclic absorption liquid measure,
The absorption rate of oxidation reinforced dose；Compare conventional tower external oxidation simultaneously, save space without additionally setting up an oxidation unit,
Simplified system, reduces equipment investment.
Oxidation overflowing liquid concentrates after concentrating spraying layer, and bottom concentrated solution enters cooling spray thrower by concentration cycles pump
Utilize the flue gas heat evaporation that heats up to accelerate crystallization and obtain solid content 10 ~ 15% concentrated solution, and after obtain solid content through swirl concentrator
The concentrated solution of 40% ~ 50%, then solid content reaches 95 ~ 97% after drying machine by centrifugation, last drying device obtains solid content and is more than
The by-product ammonium sulfate of 99%.
In sum, this device has the advantage that 1) coordinate entire work flow integration operation, carry out except mist in absorption tower
Clean, absorb reaction, absorbing liquid oxidation, absorbing liquid concentration.2) two-stage absorbed layer is set so that it is only partial oxidation absorbing liquid, carries
High-selenium corn efficiency.3) using Novel tower internal oxidition mode, oxidation panel is arranged on the top of enriching section, and the advantage being configured so that is
Compared with conventional tower internal oxidition, it is not necessary to extract circulation fluid bottom desulfurizing tower, can effectively reduce cyclic absorption liquid measure, strengthen oxygen
The absorption rate of agent；Comparing conventional tower external oxidation, saving space, without additionally setting up an oxidation unit, simplifies system simultaneously
System, reduces equipment investment.4) one-level and two grades of demister junctions are provided with v-shaped structure absorption cell, arrange V-type angle according to exhaust gas volumn
Spend 40 ° ~ 90 °, increase the contact area of flue gas and the water surface, both can reduce the escaping of ammonia by Absorption, and make further through inertia
With more effectively removing the drop in flue gas and aerosol.5) ozone is utilized to combine with hydrogenperoxide steam generator in absorbing liquid oxide regions
Gas-liquid coupling oxidation, overcomes conventionally employed air oxidation process to there is oxidation cycle length and the shortcoming such as pump energy expenditure is big, simultaneously
Both associatings can produce the hydroxyl radical free radical of more strong oxidizing property, oxidative salt and nitrite quickly and efficiently,
Thus really realize the minimizing of flue gas desulfurization and denitrification technology, recycling, resource.
Claims (10)
1. an energy-efficient gas-liquid coupling oxidation sweetening denitrification apparatus, including absorption tower (5), absorption tower (5) bottom is provided with
Gas approach (14), has in absorption tower (5) except mist section and is positioned at the absorber portion below except mist section, except mist section includes being arranged on suction
Receiving the one-level demister (6) on tower top, one-level demister (6) lower section is provided with washing layer (7), and absorber portion includes being positioned at washing layer
(7) absorbed layer of lower section, it is characterised in that: described absorption tower (5) bottommost is enriching section, is provided with between enriching section and absorber portion
Oxidation panel, enriching section includes the concentration spraying layer (18) being arranged on above gas approach and is positioned at the concentration basin at the bottom of absorbing tower
(19), described oxidation panel includes that inside is connected with the oxidation pond (17) of ozone, and oxidation pond (17) is arranged on absorbed layer and concentrates spray
It is connected between layer (18) and with concentrating spraying layer (18), described desulfurizing tower oxidation panel is positioned at oxidation pond (17) and is arranged over peroxide
Changing hydrogen solution access tube (26), described include the absorption cell (4) that connects with absorption tower tower top except mist section, absorption cell (4) is arranged on
The side on absorption tower (5), absorption cell (4) is provided with exhanst gas outlet (2), is provided with two grades of demisters (3) in exhanst gas outlet (2).
Energy-efficient gas-liquid coupling oxidation sweetening denitrification apparatus the most according to claim 1, it is characterised in that: described suction
Receiving groove (4) is v-shaped structure, and one end of the absorption cell (4) of v-shaped structure connects with absorption tower (5) tower top, described exhanst gas outlet (2)
Being arranged on the other end of the absorption cell of v-shaped structure, the V-type angle of the absorption cell of v-shaped structure is 40 ° ~ 90 °.
Energy-efficient gas-liquid coupling oxidation sweetening denitrification apparatus the most according to claim 1, it is characterised in that: described oxygen
Change and pond (17) upper connection have the ozonator (13) being positioned at outside absorption tower.
Energy-efficient gas-liquid coupling oxidation sweetening denitrification apparatus the most according to claim 1, it is characterised in that: described oxygen
Oxidation distributor pipe (12) it is provided with in changing pond (17).
Energy-efficient gas-liquid coupling oxidation sweetening denitrification apparatus the most according to claim 1, it is characterised in that: described oxygen
Change pond (17) to be arranged over aoxidizing catch tray (11).
Energy-efficient gas-liquid coupling oxidation sweetening denitrification apparatus the most according to claim 1, it is characterised in that: described suction
Receive layer include first absorber (8) and be positioned at the secondary absorber (10) of first absorber (8) lower section.
Energy-efficient gas-liquid coupling oxidation sweetening denitrification apparatus the most according to claim 6, it is characterised in that: described one
It is provided with absorption catch tray (9) between level absorber (8) and secondary absorber (10), absorption catch tray (9) offers gas and leads to
Road.
Energy-efficient gas-liquid coupling oxidation sweetening denitrification apparatus the most according to claim 1, it is characterised in that: described suction
Receive tower and be externally provided with ammonium sulfate crystallization system, ammonium sulfate crystallization system include the circulating slot (21) that is connected with described absorber portion and with institute
State the cyclone separator (23) that enriching section connects, cyclone separator (23) is connected with in turn centrifuge (24) and exsiccator
(25), the upper connection of described centrifuge (24) has the centrifugal liquid recovery channel being passed in circulating slot (21), described exsiccator (16)
On there is heat exchange structure.
Energy-efficient gas-liquid coupling oxidation sweetening denitrification apparatus the most according to claim 8, it is characterised in that follow described in:
Annular groove (21) is provided with ammonia and supplements pipe (27).
Energy-efficient gas-liquid coupling oxidation sweetening denitrification apparatus the most according to claim 1, it is characterised in that: described
Gas approach (2) place is provided with cooling spray thrower (15), and described cooling spray thrower (15) is connected with described concentration basin (19).
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| CN106540532A (en) * | 2017-01-25 | 2017-03-29 | 大连铭晟环保设备有限公司 | Column for smoke purification and flue gas purifying equipment |
| CN106731615A (en) * | 2017-01-25 | 2017-05-31 | 大连铭晟环保设备有限公司 | Flue gas purifying equipment and flue gas purification system |
| CN106823740A (en) * | 2017-01-23 | 2017-06-13 | 上海大学 | Charcoal element stove, the ammonia process of desulfurization of coke oven flue gas multisection type and dedusting absorption tower |
| CN106925097A (en) * | 2017-04-28 | 2017-07-07 | 陶汉中 | It is a kind of based on liquid phase oxidation to the combined column and its technique of flue gas desulfurization and denitrification |
| CN107441909A (en) * | 2017-08-29 | 2017-12-08 | 萍乡市华星化工设备填料有限公司 | Desulphurization denitration mixed reactor and desulfurization and denitrification integral process |
| CN109381988A (en) * | 2018-12-27 | 2019-02-26 | 山东盛宝传热科技有限公司 | A kind of device preventing ammonia process desulfuration tower Crystallization Plugging |
| CN110394043A (en) * | 2019-07-29 | 2019-11-01 | 庄建中 | A kind of flue gas and desulfurizing and denitrifying dedusting demister and technology |
| CN111443170A (en) * | 2020-05-21 | 2020-07-24 | 无锡诺信安全科技有限公司 | System and method for detecting sulfur oxides in air |
| CN112604458A (en) * | 2020-12-30 | 2021-04-06 | 双盾环境科技有限公司 | Process for treating nitrogen oxide-containing tail gas by hydrogen peroxide-ozone coupling |
| CN114288824A (en) * | 2022-01-21 | 2022-04-08 | 中国环境科学研究院 | Absorption tower for removing nitric oxide in daily glass production tail gas |
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