CN105344234A - Flue gas concerted catalytic denitration and demercuration technology - Google Patents

Flue gas concerted catalytic denitration and demercuration technology Download PDF

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Publication number
CN105344234A
CN105344234A CN201510720799.6A CN201510720799A CN105344234A CN 105344234 A CN105344234 A CN 105344234A CN 201510720799 A CN201510720799 A CN 201510720799A CN 105344234 A CN105344234 A CN 105344234A
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China
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flue gas
composite catalyst
under
tio
cellular
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CN201510720799.6A
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Chinese (zh)
Inventor
钱军
陈玲
赵建新
孟德海
尤毓敏
高宽峰
孙志翱
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WUXI HUAGUANG NEW POWER ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
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WUXI HUAGUANG NEW POWER ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
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Priority to CN201510720799.6A priority Critical patent/CN105344234A/en
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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
    • 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
    • B01D53/8665—Removing heavy metals or compounds thereof, e.g. mercury
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85—Chromium, molybdenum or tungsten
    • B01J23/888—Tungsten
    • B01J23/8885—Tungsten containing also molybdenum
    • B01J35/56—
    • 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
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2523/00—Constitutive chemical elements of heterogeneous catalysts

Abstract

The invention provides a flue gas concerted catalytic denitration and demercuration technology. The technology realizes simultaneous removal of NOx and Hg<0> without arranging a flue gas purifying device, so the reconstruction cost of present apparatuses is saved, and pollution to atmosphere is reduced, thereby the technology has strong industrial application values. The technology comprises the following steps: 1, injecting ammonia gas fully mixed with air to a boiler flue gas through the nozzle of an ammonia injection grating, fully mixing, and converting NOx in the flue gas into N2 under the action of an upper portion honeycomb Ce-Cu-V-W-TiO2 composite catalyst; 2, introducing treated flue gas obtained in step 2, and carrying out catalytic oxidation on a tiny amount of O2 and HCl and Hg<0> under the action of a lower portion honeycomb Ce-Cu-V-W-TiO2 composite catalyst to generate HgCl2; and 3, allowing a treated gas obtained in step 2 to enter the operating unit of a desulfurization tower, capturing gaseous divalent mercury having high solubility in water by a wet washing system to remove the gaseous divalent mercury, and treating sulfur-containing compounds in the flue gas to recover elemental sulfur.

Description

A kind of flue gas concerted catalysis denitration demercuration technique
Technical field
The present invention relates to the technical field of useless flue gas treating process, particularly a kind of flue gas concerted catalysis denitration demercuration technique.
Background technology
Along with the quick growth of coal utilization amount, the SO of fire coal boiler fume discharge x, NO xand the pollutant such as heavy metal Hg remains high, and has a strong impact on ecological environment and human health.Wherein SO xand NO xthe environmental pollutions such as caused acid rain and photochemical fog, and the Environmental capacity of heavy metal Hg is also brought into schedule day by day, and (fossil-fuel power plant atmospheric pollutant emission standard requires that mercury and mercuric compounds discharge capacity controlled at 0.03mg/m by coal-burning boiler from 1 day January in 2015 3below).Therefore, control SO simultaneously 2, NO xmore urgent with the requirement of mercury emissions.
The existence form of Mercury In Coal Combustion Flue Gas has Elemental Mercury (Hg 0), bivalent mercury (Hg 2+) and particle mercury (Hg p) three kinds.Under the high temperature of coal-burning boiler, most mercury is all broken down into Elemental Mercury and is present in a gaseous form in flue gas.Gaseous state bivalent mercury is soluble in water, easily catch by wet scrubbing system and remove; Particle mercury is easily by removals such as electric cleaners; And Elemental Mercury volatility is high and be insoluble in water, being relatively stable form, is the Focal point and difficult point of mercury in flue gas Environmental capacity.
Current oxynitrides removing sulfuldioxide and demercuration technology are all based upon on autonomous system, seldom can play the effect simultaneously removing oxynitrides and Elemental Mercury, so not only investment is large but also floor space is also large, seriously constrains the further development of gas cleaning engineering.Relative to applying traditional denitration and removal of mercury technology separately, combined denitration demercuration technology has advantage in economy, the level of resources utilization.China's pollution that caused by coal burning is on the rise, and greatly develops low expense, high efficiency pollution that caused by coal burning Prevention Technique is the task of top priority.Therefore, the collaborative denitration demercuration technique that exploitation has advantages such as expense is low, compact conformation realizes oxynitrides and to remove and the oxidability of Elemental Mercury becomes the emphasis of research at present.
Following known technology, all comes with some shortcomings:
Chinese patent CN102078761A discloses a kind of comprehensive flue gas desulfurizing and hydrargyrum-removing denitrating technique and device, the comprehensive flue gas desulfurizing and hydrargyrum-removing denitrating technique of one of this invention and device, it is characterized in that, the ammoniacal liquor of flue gas and ejection reacts, remove part nitrogen oxide, mercury and oxysulfide, then to enter in absorption tower secondary response again, utilize dedusting ash and the remaining oxysulfide of alkali liquor absorption and heavy metal Hg.This technique mainly adopts a large amount of ammoniacal liquors and alkali lye, causes a large amount of contaminated wastewaters.
Chinese patent CN103203160A discloses a kind of flue gas combined desulfurization and denitration mercury removal device and method thereof, comprise 2 combined desulfurization and denitration demercuration reactors, adopt spray ammonia and activated coke absorbing process, improve desulphurization and denitration and demercuration efficiency, but relate to the regeneration of activated coke and the reprocessing of desorption impurity, cause secondary pollution.
Chinese patent CN103394274A discloses system and device and the method thereof of flue gas combined denitration demercuration desulfurization, comprise desulfuration absorbing tower and be communicated with described desulfuration absorbing tower and gypsum dehydration machine for making processed to gypsum slurries bottom desulfuration absorbing tower, also comprise for catalytic denitration with nonvalent mercury to be oxidized to the denitrification apparatus that dimercurion does synchronous process, be communicated with described denitrification apparatus with the flue of described desulfuration absorbing tower be communicated with described gypsum dehydration machine and the desulfurated plaster waste water of the chloride ion-containing after gypsum dehydration delivered into the waste pipe of flue, this system needs in flue, spray the water having chloride ion-containing, to device, there is corrosivity, increase equipment cost.In addition, this process produces a large amount of waste water, easily causes secondary pollution.
Summary of the invention
For the problems referred to above, the invention provides a kind of flue gas concerted catalysis denitration demercuration technique, under the prerequisite not increasing smoke eliminator, realize NO xand Hg 0while remove, not only saved the improvement cost to existing apparatus, and decreased the pollution to air, there is stronger industrial application value.
Technical scheme provided by the invention is such, and a kind of flue gas concerted catalysis denitration demercuration technique, is characterized in that: it is as follows that it comprises step:
(1) by spraying in boiler smoke with the abundant mixed ammonia of air by the nozzle of ammonia-spraying grid, abundant mixing is made it, through the cellular Ce-Cu-V-W-TiO of upper part 2be N by the NOx conversion in flue gas under composite catalyst effect 2;
(2) flue gas processed in step (1) is passed into, through the cellular Ce-Cu-V-W-TiO of lower part 2under composite catalyst effect, the wherein O of trace 2with HCl and Hg 0catalytic oxidation generates HgCl 2;
(3) gas after step (2) being processed enters in desulfurizing tower operating unit, gaseous state bivalent mercury soluble in water catch by wet scrubbing system and remove, the sulfur-containing compound in flue gas is processed reclaims elemental sulfur.
It is further characterized in that: in step (1), to spray in boiler smoke by the nozzle of ammonia-spraying grid with the abundant mixed ammonia of air, make it abundant mixing, at temperature 300-420 DEG C, flow velocity 5-8m/s in catalyst pores, air speed 3000-40001/h, face velocity is under 6-12m/h condition, flows through the cellular Ce-Cu-V-W-TiO of the first half 2composite catalyst, and under its effect, by the NO in flue gas xbe converted into N 2;
In step (2), flue gas passes into, through the cellular Ce-Cu-V-W-TiO in the bottom of 300-420 DEG C 2under composite catalyst effect, the wherein O of trace 2with HCl and Hg 0catalytic oxidation generates HgCl 2.
After the present invention adopts above-mentioned technique, because useless flue gas is through the cellular Ce-Cu-V-W-TiO of upper part 2by the NO in flue gas under composite catalyst effect xbe converted into N 2achieve the denitration of flue gas, flue gas passes into, through the cellular Ce-Cu-V-W-TiO of lower part 2under composite catalyst effect, the wherein O of trace 2with HCl and Hg 0catalytic oxidation generates HgCl 2achieve the demercuration of flue gas, under the prerequisite not increasing smoke eliminator, realize NO xand Hg 0while remove, not only saved the improvement cost to existing apparatus, and decreased the secondary pollution to air.
Accompanying drawing explanation
Fig. 1 is flue gas concerted catalysis denitration demercuration device of the present invention.
Detailed description of the invention
The invention will be further described below:
See Fig. 1,
Embodiment one:
A kind of flue gas concerted catalysis denitration demercuration technique, it comprises the following steps:
(1) will spray in boiler smoke by the nozzle of ammonia-spraying grid with the abundant mixed ammonia of air, make it abundant mixing, at 350 DEG C, flow velocity 7m/s in catalyst pores, air speed 30001/h, face velocity is through the cellular Ce-Cu-V-W-TiO of the first half under 8m/h condition 2by the NO in flue gas under composite catalyst effect xbe converted into N 2.
(2) flue gas processed in step (1) is passed into, through cellular Ce-Cu-V-W-TiO at 350 DEG C 2under composite catalyst effect, the wherein O of trace 2with HCl and Hg 0catalytic oxidation generates HgCl 2.
(3) gas after step (2) being processed enters in wet oxidation desulfurization tower operating unit, gaseous state bivalent mercury soluble in water catch by wet scrubbing system and remove, the sulfur-containing compound in flue gas is processed reclaims elemental sulfur.
NO in the present embodiment xremoval efficiency be 98%, Hg 0removal efficiency be 98%.
Embodiment two:
A kind of flue gas concerted catalysis denitration demercuration technique, it comprises the following steps:
(1) will spray in boiler smoke by the nozzle of ammonia-spraying grid with the abundant mixed ammonia of air, make it abundant mixing, at 380 DEG C, flow velocity 7m/s in catalyst pores, air speed 36001/h, face velocity is through the cellular Ce-Mn-V-W-TiO of the first half under 9m/h condition 2by the NO in flue gas under composite catalyst effect xbe converted into N 2.
(2) flue gas processed in step (1) is passed into, 380 othrough cellular Ce-Mn-V-W-TiO under C 2under composite catalyst effect, the wherein O of trace 2with HCl and Hg 0catalytic oxidation generates HgCl 2.
(3) gas after step (2) being processed enters in wet oxidation desulfurization tower operating unit, gaseous state bivalent mercury soluble in water catch by wet scrubbing system and remove, the sulfur-containing compound in flue gas is processed reclaims elemental sulfur.
NO in the present embodiment xremoval efficiency be 96%, Hg 0removal efficiency be 98%.
Embodiment three:
A kind of flue gas concerted catalysis denitration demercuration technique, it comprises the following steps:
(1) will spray in boiler smoke by the nozzle of ammonia-spraying grid with the abundant mixed ammonia of air, make it abundant mixing, at 400 DEG C, flow velocity 6m/s in catalyst pores, air speed 40001/h, face velocity is through the cellular Ce-Mn-V-W-TiO of the first half under 8m/h condition 2by the NO in flue gas under composite catalyst effect xbe converted into N 2.
(2) flue gas processed in step (1) is passed into, 400 othrough cellular Ce-Mn-V-W-TiO under C 2under composite catalyst effect, the wherein O of trace 2with HCl and Hg 0catalytic oxidation generates HgCl 2.
(3) gas after step (2) being processed enters in wet oxidation desulfurization tower operating unit, gaseous state bivalent mercury soluble in water catch by wet scrubbing system and remove, the sulfur-containing compound in flue gas is processed reclaims elemental sulfur.
NO in the present embodiment xremoval efficiency be 97%, Hg 0removal efficiency be 99%.
The present invention is directed to the strict control of national standard to mercury and mercuric compounds discharge capacity, and do not have can remove NO in flue gas effectively simultaneously at present xand Hg 0technique, provide a kind of technique of working in coordination with denitration demercuration for coal-fired plant flue gas, under the prerequisite not increasing smoke eliminator, realize NO xand Hg 0while remove, not only saved the improvement cost to existing apparatus, and decreased the pollution to air, there is stronger industrial application value.
It is the cellular Ce-Mn-V-W-TiO adopting flue gas to work in coordination with denitration demercuration that coal-fired plant flue gas of the present invention works in coordination with denitration demercuration technique 2composite catalyst, first at spray NH 3by the NO in flue gas under effect xbe converted into N 2discharge; Then by O micro-in flue gas 2and HCl, make Hg 0catalytic oxidation is HgCl 2; Finally the gas generated in two processes is entered in wet oxidation desulfurization tower operating unit and remove gaseous state bivalent mercury and reclaim elemental sulfur.
Be specially:
By spraying in boiler smoke with the abundant mixed ammonia of air by the nozzle of ammonia-spraying grid, make it abundant mixing, at 300-420 DEG C under the effect of the first half honeycombed catalyst by the NO in flue gas xbe converted into N 2.
Above-mentioned flue gas after denitration process, at 300-420 DEG C under the effect of the latter half honeycombed catalyst, the wherein O of trace 2with HCl and Hg 0catalytic oxidation generates HgCl 2.
In above-mentioned flue gas, the HCl of trace is at low-temperature zone and NH 3smog contact generates NH 4cl, but at high temperature section NH 4cl occurs to decompose and generates HCl and NH 3, make its energy and Hg under catalyst action 0catalytic oxidation generates HgCl 2, do not need additionally to supplement HCl, avoid the corrosion to device.
Above-mentioned gas after denitration and demercuration process enters in wet oxidation desulfurization tower operating unit, gaseous state bivalent mercury soluble in water catch by wet scrubbing system and remove, the sulfur-containing compound in flue gas is processed reclaims elemental sulfur.
The flue gas that foregoing invention provides works in coordination with the technique of denitration demercuration, and under typical coal-fired plant flue gas composition, reach 98% to the removal efficiency of oxynitrides, the oxygenation efficiency of Elemental Mercury reaches 96%.In addition, this technique belongs to a tower-type fixed bed dry method combined purifying technique, has wider active window, has stronger adaptability, concise in technology, simple operation, continuously-running to severe operating condition, have stronger industrial application value.
Accompanying drawing is that this enforcement flue gas of the present invention works in coordination with the technique of denitration demercuration device used, and this device comprises:
1. boiler: the capital equipment being coal burning, for thermal power generation provides heat energy, is also the equipment that useless flue gas produces;
2. collaborative denitration demercuration reactor: in fume treatment, denitration demercuration treatment facility, carries out denitration demercuration;
3. electrostatic precipitator: cleaner, carries out flue gas ash removal;
4. wet desulphurization device: recycling elemental sulfur equipment, carries out recycling elemental sulfur;
5. smoke evacuation system: flue gas tapping equipment outwardly.
By carrying out the flue gas after denitration demercuration process by being discharged by the flue gas after process by smoke evacuation system after dedusting, recycling elemental sulfur.
The present invention can summarize with other the concrete form without prejudice to spirit of the present invention or principal character.Above-mentioned embodiment of the present invention all can only be thought explanation of the present invention instead of restriction, therefore every above embodiment is done according to substantial technological of the present invention any trickle amendment, equivalent variations and modification, all belong in the scope of technical solution of the present invention.

Claims (3)

1. a flue gas concerted catalysis denitration demercuration technique, is characterized in that: it is as follows that it comprises step:
(1) by spraying in boiler smoke with the abundant mixed ammonia of air by the nozzle of ammonia-spraying grid, abundant mixing is made it, through the cellular Ce-Cu-V-W-TiO of upper part 2by the NO in flue gas under composite catalyst effect xbe converted into N 2;
(2) flue gas processed in step (1) is passed into, through the cellular Ce-Cu-V-W-TiO of lower part 2under composite catalyst effect, the wherein O of trace 2with HCl and Hg 0catalytic oxidation generates HgCl 2;
(3) gas after step (2) being processed enters in desulfurizing tower operating unit, gaseous state bivalent mercury soluble in water catch by wet scrubbing system and remove, the sulfur-containing compound in flue gas is processed reclaims elemental sulfur.
2. a kind of flue gas concerted catalysis denitration demercuration technique according to claim 1, it is characterized in that: in step (1), to spray in boiler smoke by the nozzle of ammonia-spraying grid with the abundant mixed ammonia of air, make it abundant mixing, at 300-420 DEG C, flow velocity 5-8m/s, air speed 3000-40001/h in catalyst pores, face velocity is through the cellular Ce-Cu-V-W-TiO of the first half under 6-12m/h condition 2by the NO in flue gas under composite catalyst effect xbe converted into N 2.
3. a kind of flue gas concerted catalysis denitration demercuration technique according to claim 1, is characterized in that: in step (2), flue gas passes into, through the cellular Ce-Cu-V-W-TiO in the bottom of 300-420 DEG C 2under composite catalyst effect, the wherein O of trace 2with HCl and Hg 0catalytic oxidation generates HgCl 2.
CN201510720799.6A 2015-10-30 2015-10-30 Flue gas concerted catalytic denitration and demercuration technology Pending CN105344234A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107008323A (en) * 2017-05-27 2017-08-04 宝鸡市金得利新材料有限公司 A kind of activated-carbon catalyst preparation method for flue gas desulfurization and denitrification
WO2020191915A1 (en) * 2019-03-22 2020-10-01 南京凯盛国际工程有限公司 Cement kiln flue gas denitration, demercuration, and desulphurisation system and method
CN112892181A (en) * 2021-02-28 2021-06-04 江苏省环境工程技术有限公司 Integrated removal method for multiple pollutants in nonferrous smelting flue gas

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53125265A (en) * 1977-04-08 1978-11-01 Saburo Yanagisawa Removing method for nitrogen oxides
US20050118084A1 (en) * 2003-12-02 2005-06-02 J. Edward Cichanowicz Multi-stage heat absorbing reactor and process for SCR of NOx and for oxidation of elemental mercury
CN101827641A (en) * 2007-08-20 2010-09-08 Ast工程有限责任公司 Modular plant for removal of pollutants from flue gases produced bv industrial processes
CN101932376A (en) * 2008-02-28 2010-12-29 三菱重工业株式会社 Process and equipment for the treatment of exhaust gas
CN102078761A (en) * 2010-12-06 2011-06-01 李鹏举 Comprehensive flue gas desulfurization, mercury removal and denitration process and device
CN103657636A (en) * 2013-11-21 2014-03-26 大唐南京环保科技有限责任公司 Plate-type catalyst capable of simultaneous denitration and demercuration and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53125265A (en) * 1977-04-08 1978-11-01 Saburo Yanagisawa Removing method for nitrogen oxides
US20050118084A1 (en) * 2003-12-02 2005-06-02 J. Edward Cichanowicz Multi-stage heat absorbing reactor and process for SCR of NOx and for oxidation of elemental mercury
CN101827641A (en) * 2007-08-20 2010-09-08 Ast工程有限责任公司 Modular plant for removal of pollutants from flue gases produced bv industrial processes
CN101932376A (en) * 2008-02-28 2010-12-29 三菱重工业株式会社 Process and equipment for the treatment of exhaust gas
CN102078761A (en) * 2010-12-06 2011-06-01 李鹏举 Comprehensive flue gas desulfurization, mercury removal and denitration process and device
CN103657636A (en) * 2013-11-21 2014-03-26 大唐南京环保科技有限责任公司 Plate-type catalyst capable of simultaneous denitration and demercuration and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王文宗，武文江 编著: "《火电厂烟气脱硫及脱硝实用技术》", 31 January 2009 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107008323A (en) * 2017-05-27 2017-08-04 宝鸡市金得利新材料有限公司 A kind of activated-carbon catalyst preparation method for flue gas desulfurization and denitrification
CN107008323B (en) * 2017-05-27 2019-07-16 山东金瑞达环保科技有限公司 A kind of activated-carbon catalyst preparation method for flue gas desulfurization and denitrification
WO2020191915A1 (en) * 2019-03-22 2020-10-01 南京凯盛国际工程有限公司 Cement kiln flue gas denitration, demercuration, and desulphurisation system and method
CN112892181A (en) * 2021-02-28 2021-06-04 江苏省环境工程技术有限公司 Integrated removal method for multiple pollutants in nonferrous smelting flue gas

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