CN114146548A - Waste gas desulfurization and denitrification system - Google Patents

Waste gas desulfurization and denitrification system Download PDF

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CN114146548A
CN114146548A CN202111344172.7A CN202111344172A CN114146548A CN 114146548 A CN114146548 A CN 114146548A CN 202111344172 A CN202111344172 A CN 202111344172A CN 114146548 A CN114146548 A CN 114146548A
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tower
layer
waste gas
carrier layer
desulfurization
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CN114146548B (en
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姚松年
陈红林
胡春雷
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Nantong Shan Jian Graphite Equipment Co ltd
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Nantong Shan Jian Graphite Equipment Co ltd
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/14—Packed scrubbers
    • 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
    • B01D53/32—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 by electrical effects other than those provided for in group B01D61/00
    • 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
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • 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
    • B01D53/56—Nitrogen oxides
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/10—Oxidants
    • B01D2251/106—Peroxides
    • 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
    • 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
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention provides a waste gas desulfurization and denitrification system which is sequentially provided with a boiler, a dedusting and desulfurization tower, a denitrification tower and a chimney according to a waste gas flow path; an energy saver can be connected between the boiler and the dedusting and desulfurizing tower. The primary purified gas outlet is communicated with the primary waste gas inlet through a plasma generator, and the plasma generator can enable primary purified gas to generate a plurality of positive ions and negative ions. Preferably, the upper carrier layer and the lower carrier layer of the denitration tower are respectively connected with the positive electrode and the negative electrode of the power supply, a circuit which is controlled and communicated by a switch is arranged between the upper carrier layer and the lower carrier layer, and after the denitration reaction is carried out for a period of time, the circuit switch is closed, so that the upper carrier layer and the lower carrier layer are electrically neutralized. The invention integrates dust removal, desulfurization and denitration, and is energy-saving and environment-friendly.

Description

Waste gas desulfurization and denitrification system
Technical Field
The invention relates to a waste gas treatment technical device.
Background
The flue gas desulfurization and denitration technology is a boiler flue gas purification technology applied to the chemical industry of generating multi-nitrogen oxides and sulfur oxides. Nitrogen oxides and sulfur oxides are one of the main sources of air pollution. The application of this technology is of considerable benefit for ambient air purification. Currently known flue gas desulfurization and denitrification technologies include the technologies of PAFP, ACFP, pyrolusite method, electron beam ammonia method, pulse corona method, gypsum wet method, catalytic oxidation method, microbial degradation method and the like.
The flue gas desulfurization technology by an Activated Carbon Fiber Process (ACFP) is a novel desulfurization technology for removing SO2 in flue gas by adopting a novel material desulfurization Activated Carbon Fiber catalyst (DSACF) and recycling sulfur resources to produce sulfuric acid or sulfate.
The desulfurization rate of the technology can reach more than 95 percent, and the unit desulfurization agent treatment capacity is higher than that of activated carbon desulfurization by more than one order of magnitude (generally, the GAC treatment capacity is 102Nm3/h.t, and the ACF can reach 104Nm 3/h.t). The process is simple, the equipment is few, the operation is simple, the investment and operation cost is low, and the sulfur resource can be recycled while the SO2 pollution is eliminated, SO the method can be adopted in the pollution control of the flue gas of power plant boilers, nonferrous smelting flue gas, sintering flue gas of steel works and various large and medium industrial boilers, namely the SO2 pollution, and the condition that the existing flue gas desulfurization technical device is barely available but can not operate is improved. The flue gas desulfurization technology is calculated according to the flue gas of a boiler of a 10-kilo KW unit, the investment cost of the device is 3500 kilo-million, and the annual output of sulfuric acid is 3-4 kilo tons. Only used for desulfurizing high-sulfur coal power plants in China, the method can reduce 240 million tons of SO2 emission and 360 million tons of sulfuric acid as a byproduct every year, and the output value can reach billions of yuan. The technology has obtained the invention patent of the state and is listed in the national high and new technology industrialization project guide.
Disclosure of Invention
The purpose of the invention is as follows:
the utility model provides a dust removal SOx/NOx control is multiple functional, adsorb fast waste hot gas SOx/NOx control system of desorption reaction.
The technical scheme is as follows:
the desulfurization and denitrification system for waste hot gas is used for purifying and treating waste gas of a removal boiler, and is sequentially provided with a boiler, a dedusting and desulfurization tower, a denitrification tower and a chimney according to a waste gas flow path; an energy saver can be connected between the boiler and the dedusting and desulfurizing tower, and a plasma generator can be connected between the dedusting and desulfurizing tower and the denitration tower.
The middle upper part of the dedusting and desulfurizing tower is provided with three solution inlets from top to bottom, a waste gas inlet at the lower part, a solution outlet at the bottom and a primary purified gas outlet at the top. The dedusting and desulfurizing tower is internally provided with a demister on the top layer, an upper layer filler, a water-gas separator on the middle layer and a lower layer filler (dedusting). The first solution inlet is positioned between the demister and the upper-layer filler, the second solution inlet is positioned between the upper-layer filler layer and the water-gas separator, and the third solution inlet is positioned between the water-gas separator and the lower-layer filler. The first liquid is hydrogen peroxide, the second is circulating water (which is convenient for forming solution), and the third liquid is alkali liquor.
The lower part of the denitration tower is provided with a primary purified gas inlet, a solution outlet at the bottom, an oxidant (oxygen or hydrogen peroxide in air) inlet and a urea inlet on the tower body, and a secondary purified gas outlet at the top. The denitration tower is internally provided with an upper carrier and a lower carrier.
The boiler waste gas export intercommunication dust removal desulfurizing tower's waste gas entry, the primary waste gas entry of the first purified gas export intercommunication denitration tower of dust removal desulfurizing tower, the secondary purified gas export intercommunication chimney of denitration tower.
Preferably, the boiler waste gas outlet is communicated with the waste gas inlet through an economizer, the economizer can temporarily store part of waste gas and has a pressure regulation function to play a role in buffering.
Preferably, the primary purified gas outlet is communicated with the primary waste gas inlet through a plasma generator, and the plasma generator can enable the primary purified gas to generate a plurality of positive ions and negative ions.
It is further preferable that the upper carrier layer and the lower carrier layer of the denitration tower are respectively connected with the positive electrode and the negative electrode of a power supply, so that the two-layer carrier can respectively adsorb the exhaust gas molecules or ions (such as NH 4) with electronegativity and electropositivity+、NO2-、NO3-) The adsorption of the carrier to the exhaust gas is facilitated and the denitration reaction is facilitated.
And a circuit in switching control communication is arranged between the upper carrier layer and the lower carrier layer, and when the adsorption or denitration reaction is carried out for a period of time or is basically completed, the circuit switch is switched on, so that the unreacted positive ions and negative ions of the upper carrier layer and the lower carrier layer are electrically neutralized. The adsorbed residual substances are conveniently and rapidly desorbed, reaction liquid is formed to flow away from the bottom, or purified gas is formed to flow out from the top.
The desulfurization mechanism is as follows:
and carrying out oxidation reaction on sulfur dioxide in the waste gas and hydrogen peroxide to generate sulfur trioxide.
The sulfur trioxide and alkaline water are subjected to neutralization reaction to generate brine.
The denitration mechanism is as follows:
the nitrogen-containing waste gas generates plasma under the action of direct bombardment of high-energy electrons and free radicals, and NO is oxidized into high-valence NOx (NO 2, N2O3 and NO 3)-) And then reducing the NOx to N2 emissions with an absorbent such as urea.
Item SCR Plasma with a plasma chamber
Denitration efficiency ＞90% ＞95%
Investment and operation cost Height of Is low in
Wind resistance (Pa) ＞1000 ＜500
Service life (year) Catalysts 1 to 3 10
Safety feature The ammonia escapes and the ammonia station is easy to explode No ammonia station and no secondary pollution
Load range (%) 40-100 0-100
Temperature requirement (. degree.C.) 320-400 20-250
Installation shutdown 3 months old 10 days
Upgrading and transforming Limited by temperature and mounting position Flexible position and convenient serial connection of plasma modules
Suitable for use in the field Thermal power plant, large and medium-sized thermal power plant Low-temperature kiln, thermal power plant and industrial boiler
Has the advantages that:
1. high efficiency (mg/Nm 3): the desulfurization efficiency is more than or equal to 95 percent; the dust removal efficiency is more than or equal to 99 percent; the Ringelmann blackness is less than grade 1; the running resistance is less than 400 Pa. Dust is less than 30, sulfur is less than 100, and nitre is less than 50.
2. The unique process comprises the following steps: multi-stage efficient spraying and high specific surface area packing
3. Three purposes are realized in one tower: dust removal, desulfurization and denitrification
4. Wind resistance optimization: less than 400Pa, simplified structure and low wind speed design;
5. safe and reliable: SUS316+ anticorrosion + antiscaling; the consumable has long service life and no dangerous consumables such as NH3 and the like
6. Cost control: three towers are combined into one, the drifting water rate is low, the power consumption is low, and the alkali liquor consumption is reasonable; the initial investment is more than 20 percent lower than that of the traditional technology.
Energy conservation: the industrial original technology, energy conservation and environmental protection are integrated, the energy is saved by more than 10%, and the operating cost of desulfurization and denitrification is compensated.
Drawings
FIG. 1 is a schematic sectional view of a dust removal desulfurization tower of the present application;
FIG. 2 is a cross-sectional structure and flow diagram of the present application;
in the figure, 1-hole inlet, 2-smoke inlet, 3-smoke outlet, 4-demister, 5-hydrogen peroxide spray, 6-packing layer, 7-hydrogen peroxide outlet, 8-water-gas separator, 9-alkali liquor spray, 10-packing layer, 11-empty tower spray and 12-alkali liquor outlet; 13-a boiler; 14-circulating water pool; 15-a desulfurization dosing device; 16-denitration dosing device; 17-an economizer; 18-a plasma generator; 19-a chimney; 20-a reaction liquid storage tank; 21-a denitration tower; 22-sedimentation tank.
Detailed Description
The flue gas desulfurization and denitrification system shown in fig. 1 sequentially passes through a boiler, a dedusting and desulfurization tower, a denitrification tower and a chimney according to a flue gas flow path; the boiler waste gas export passes through the waste gas entry of energy-saving appliance intercommunication dust removal desulfurizing tower, and the primary waste gas entry of the primary purified gas export intercommunication denitration tower of dust removal desulfurizing tower, the secondary purified gas export intercommunication chimney of denitration tower.
The waste gas entry of dust removal desulfurizing tower lower part, well upper portion have from top to bottom three kinds of solution entry: the first solution hydrogen peroxide inlet is positioned above the upper-layer filler, the second solution circulating water inlet is positioned between the upper-layer filler layer and the water-gas separator, and the third solution alkali liquor inlet is positioned between the water-gas separator and the lower-layer filler. A primary purge gas outlet at the top; the dedusting and desulfurizing tower is internally provided with an upper layer of filler, a middle layer of water-gas separator and an upper layer of filler for adsorbing waste gas, and a lower layer of filler for adsorbing dust.
The lower part of the denitration tower is provided with a primary purified gas inlet, and a primary purified gas outlet is communicated with a primary waste gas inlet through a plasma generator.
The reaction liquid inlet of the denitration tower body and the secondary purified gas outlet at the top. The denitration tower is internally provided with an upper carrier and a lower carrier.
It is further preferable that the upper carrier layer and the lower carrier layer of the denitration tower are respectively connected with the positive electrode and the negative electrode of a power supply, so that the two-layer carrier can respectively adsorb the exhaust gas molecules or ions (such as NH 4) with electronegativity and electropositivity+、NO3-) The adsorption of the carrier to the exhaust gas is facilitated and the denitration reaction is facilitated.

Claims (6)

1. A waste gas desulfurization and denitrification system sequentially passes through a boiler, a dedusting and desulfurization tower, a denitrification tower and a chimney according to a waste gas flow path; the method is characterized in that: the boiler waste gas outlet is communicated with a waste gas inlet of the dedusting and desulfurizing tower, a primary purified gas outlet of the dedusting and desulfurizing tower is communicated with a primary waste gas inlet of the denitration tower, and a secondary purified gas outlet of the denitration tower is communicated with a chimney;
the middle upper part of the dedusting and desulfurizing tower is provided with three solution inlets from top to bottom, a waste gas inlet at the lower part, a solution outlet at the bottom and a primary purified gas outlet at the top; the dedusting and desulfurizing tower is internally provided with an upper layer of filler, a middle layer of water-gas separator and a lower layer of filler; a first solution inlet is positioned above the upper-layer filler, a second solution inlet is positioned between the upper-layer filler layer and the water-gas separator, and a third solution inlet is positioned between the water-gas separator and the lower-layer filler; the upper layer of filler adsorbs waste gas, and the lower layer of filler adsorbs dust.
2. The flue gas desulfurization and denitrification system according to claim 1, wherein: the first liquid is hydrogen peroxide, the second is circulating water, and the third liquid is alkali liquor.
3. The flue gas desulfurization and denitrification system according to claim 1, wherein: the lower part of the denitration tower is provided with a primary purified gas inlet, a solution outlet at the bottom, a reaction liquid inlet of the tower body and a secondary purified gas outlet at the top; the denitration tower is internally provided with an upper carrier and a lower carrier.
4. The exhaust gas desulfurization and denitrification system according to claim 1 or 2, characterized in that: the boiler waste gas outlet is communicated with the waste gas inlet through the energy saver.
5. The exhaust gas desulfurization and denitrification system according to claim 1 or 3, characterized in that: the primary purified gas outlet is communicated with the primary waste gas inlet through a plasma generator.
6. The exhaust gas desulfurization and denitrification system according to claim 3 or 5, wherein: the upper carrier layer and the lower carrier layer of the denitration tower are respectively connected with the anode and the cathode of a power supply, and a circuit which is communicated with the upper carrier layer and the lower carrier layer in a switching control manner is arranged between the upper carrier layer and the lower carrier layer; when the adsorption or denitration reaction is carried out for a period of time, the circuit switch is switched on, so that the positive ions and the negative ions of the upper carrier layer and the lower carrier layer are electrically neutralized, and the fast desorption or nitration reaction is carried out.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115634522A (en) * 2022-10-20 2023-01-24 云南曲靖钢铁集团呈钢钢铁有限公司 Environment-friendly energy-saving type deep purification system and method for flue gas of belt type sintering machine

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10216474A (en) * 1997-02-13 1998-08-18 Babcock Hitachi Kk Method for controlling carbonate concentration in slurry and apparatus therefor
JP2002253963A (en) * 2000-12-28 2002-09-10 Kumamoto Prefecture Regenerating agent for hydrogen sulfide removing agent and method and apparatus for regenerating the same
WO2008120819A1 (en) * 2007-03-30 2008-10-09 National University Corporation Toyohashi University Of Technology Exhaust gas purifying apparatus
CN105032145A (en) * 2015-08-18 2015-11-11 江苏一同环保工程技术有限公司 Boiler flue gas integrated distributed desulfurization and denitration device
CN105664693A (en) * 2016-01-15 2016-06-15 赤峰富邦铜业有限责任公司 Sulfuric acid tail gas desulphurization apparatus by oxidation process and usage method thereof
CN106268235A (en) * 2016-09-28 2017-01-04 中石化节能环保工程科技有限公司 Oil field fuel oil injection boiler tail gas desulfurization denitration processing system
CN106268222A (en) * 2016-09-30 2017-01-04 成都信息工程大学 Ammonia spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal the method for resource
CN106422724A (en) * 2016-10-28 2017-02-22 江苏科行环保科技有限公司 Device and method for removing ammonia desulfurization aerosol
CN206355819U (en) * 2016-12-29 2017-07-28 北京汉唐环保科技股份有限公司 A kind of wet desulphurization denitrification apparatus of industrial furnace flue gas
CN208626983U (en) * 2018-05-10 2019-03-22 上海三卿环保科技有限公司 A kind of high concentration nitrogen oxide flue gas denitrification system
CN209968068U (en) * 2019-04-15 2020-01-21 杭州双良中荷环保科技有限公司 Plasma collaborative denitration device for waste incineration flue gas
CN110917826A (en) * 2019-11-20 2020-03-27 邯郸钢铁集团有限责任公司 Pulse corona plasma flue gas desulfurization and denitrification device with medicament peak clipping function

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10216474A (en) * 1997-02-13 1998-08-18 Babcock Hitachi Kk Method for controlling carbonate concentration in slurry and apparatus therefor
JP2002253963A (en) * 2000-12-28 2002-09-10 Kumamoto Prefecture Regenerating agent for hydrogen sulfide removing agent and method and apparatus for regenerating the same
WO2008120819A1 (en) * 2007-03-30 2008-10-09 National University Corporation Toyohashi University Of Technology Exhaust gas purifying apparatus
CN105032145A (en) * 2015-08-18 2015-11-11 江苏一同环保工程技术有限公司 Boiler flue gas integrated distributed desulfurization and denitration device
CN105664693A (en) * 2016-01-15 2016-06-15 赤峰富邦铜业有限责任公司 Sulfuric acid tail gas desulphurization apparatus by oxidation process and usage method thereof
CN106268235A (en) * 2016-09-28 2017-01-04 中石化节能环保工程科技有限公司 Oil field fuel oil injection boiler tail gas desulfurization denitration processing system
CN106268222A (en) * 2016-09-30 2017-01-04 成都信息工程大学 Ammonia spray photocatalyst dielectric barrier discharge method simultaneous SO_2 and NO removal the method for resource
CN106422724A (en) * 2016-10-28 2017-02-22 江苏科行环保科技有限公司 Device and method for removing ammonia desulfurization aerosol
CN206355819U (en) * 2016-12-29 2017-07-28 北京汉唐环保科技股份有限公司 A kind of wet desulphurization denitrification apparatus of industrial furnace flue gas
CN208626983U (en) * 2018-05-10 2019-03-22 上海三卿环保科技有限公司 A kind of high concentration nitrogen oxide flue gas denitrification system
CN209968068U (en) * 2019-04-15 2020-01-21 杭州双良中荷环保科技有限公司 Plasma collaborative denitration device for waste incineration flue gas
CN110917826A (en) * 2019-11-20 2020-03-27 邯郸钢铁集团有限责任公司 Pulse corona plasma flue gas desulfurization and denitrification device with medicament peak clipping function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115634522A (en) * 2022-10-20 2023-01-24 云南曲靖钢铁集团呈钢钢铁有限公司 Environment-friendly energy-saving type deep purification system and method for flue gas of belt type sintering machine

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