CN106823785A - A kind of desulfurizing industrial fume denitrification apparatus and method based on NACF - Google Patents

A kind of desulfurizing industrial fume denitrification apparatus and method based on NACF Download PDF

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Publication number
CN106823785A
CN106823785A CN201710050689.2A CN201710050689A CN106823785A CN 106823785 A CN106823785 A CN 106823785A CN 201710050689 A CN201710050689 A CN 201710050689A CN 106823785 A CN106823785 A CN 106823785A
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nacf
air inlet
denitration
sulfuric acid
inlet pipe
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Inventor
李月丽
岑望来
李刚
殷实
刘敏
杨忠强
郭益江
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Chengdu Xiang Tianyu Environmental Protection Technology Co Ltd
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Chengdu Xiang Tianyu Environmental Protection Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8603Removing sulfur compounds
    • B01D53/8609Sulfur oxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8621Removing nitrogen compounds
    • B01D53/8625Nitrogen oxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8621Removing nitrogen compounds
    • B01D53/8625Nitrogen oxides
    • B01D53/8628Processes characterised by a specific catalyst
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/20Reductants
    • B01D2251/206Ammonium compounds
    • B01D2251/2062Ammonia
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/10Single element gases other than halogens
    • B01D2257/104Oxygen
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/80Water
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases

Abstract

The invention discloses a kind of desulfurizing industrial fume denitrification apparatus based on NACF and method, the device is by including reaction tower body, sulfuric acid collection device, air inlet area one, grid one, desulfurization zone, air inlet area two, grid two, denitration region, outlet area are disposed with from lower to upper in the reaction tower body, air inlet pipe one and air inlet pipe two are additionally provided with described this body sidewall of reaction tower, top is provided with gas outlet, and the desulfurization/denitration region is NACF desulfurization/denitrating catalyst reaction bed.The method utilizes said apparatus, flue gas to pass through each region in reaction tower body by the way of bottom in and top out, sulfur dioxide and nitrogen oxides in flue gas is generated sulfuric acid and nitrogen gas water respectively.The desulfuring and denitrifying apparatus simple structure that the present invention is provided, operation is easy, and floor space is small, low cost, and the method technology is easy, denitrification efficiency is high, worth popularization in the field of business.

Description

A kind of desulfurizing industrial fume denitrification apparatus and method based on NACF
Technical field
The invention belongs to industrial flue gas cleaning processing technology field, and in particular to a kind of industrial cigarette based on NACF Desulfurization denitrification apparatus and method.
Background technology
Sulfur dioxide, nitrogen oxides are the major pollutants in air, there is very big harm to health, while being also Produce the main cause of acid rain.China SO2Total emission volumn with NOx has occupied first place in the world, and acid all occur to some extent in various regions Rain and haze, as the acid rain seriously polluted area after Europe, North America.Therefore, the removing of sulfur dioxide and nitrogen oxides is administered It is the key subjects in Environmental Protection in China field.
Industrial conventional desulphurization denitration needs separately treatment at present, typically before dust arrester, is first carrying out denitration, temperature Generally more than 350 DEG C of degree, after desulfurizer is typically located at dust arrester, wet type is carried out after waste heat recovery is carried out to flue gas again Absorption process desulfurization.Conventional desulphurization denitration technology is high temperature SCR denitration technology+desulfurization method of limestone-gypsum technology.With environmental protection It is required that it is increasingly harsh, there is the defects such as efficiency is low, catalyst is easily poisoned, energy consumption is high in traditional high temperature SCR technology;And lime Stone-gypsum desulfurization technology there is also that equipment is perishable, operating cost is high, gypsum secondary pollution problems.
With economic development social progress, people have gradually formed simultaneously to the continuous Improvement of desulphurization denitration technology Desulphurization denitration technology, simultaneous SO_2 and NO removal catalyst etc..
A kind of method of ammonia process simultaneous SO_2 and NO removal is disclosed in the patent document of Publication No. CN101934191A, should The desulphurization denitration tower that method is used sets two-layer desulfuration spray tower, one layer of denitration spray column, absorbing liquid circulated sprinkling, by forcing Ammonium sulfate recycling is ultimately generated after oxidation.The method is wet desulphurization denitrating technique, and technological process complexity is, it is necessary to control Absorbing liquid pH value, engineering degree is not high.
A kind of Ozonation simultaneous SO_2 and NO removal method is disclosed in Publication No. CN102489129A patent documents, The method sprays ozone and smoke collision by ozone injection apparatus, and the fusion reaction after being fully contacted will be insoluble in the NO of water It is oxidized to NO soluble in water2、N2O3And N2O5High-valence state nitrogen oxides, makes SO2It is converted into SO soluble in water3Sulfide, together Water reaction generation sulfuric acid and nitric acid mixed liquor, secondary returning use is carried out with the NH3 reactions generation ammonium nitrate and ammonium sulfate for spraying into.The party Method does not exist secondary pollution, and floor space is small, it is easy to operate.But ozone oxidation efficiency is not high, it is necessary to ozone generating-device, and Need to consume a large amount of NH3
A kind of fluid bed activated carbon ammonia process integrated desulfurization is disclosed in Publication No. CN 202460473A patent documents Denitrification apparatus., with activated carbon as catalyst, using dry oxidation desulfurization+reduction denitration, equipment operating cost is relatively low for device, but Regeneration is needed after the method active carbon desulfurization, activated carbon service life is influenceed, with certain application limitation.
Simultaneous SO_2 and NO removal technology is produced sour technique, ozonation technology, dry method and is urged except the wet oxidation that above-mentioned patent is proposed Change outside removing process, also automatic oxidation reduction technique (CN103263848A), photocatalytic redox technique (CN104707475A) etc., it is primarily present the problem of the following aspects:First, oxidation technology is inefficient;2nd, dry process is needed Regenerate;3rd, general to process based on a kind of pollutant component, supplemented by another kind, the general efficiency of composition of aid in treatment is 70% Below;4th, equipment is complicated, and floor space is big.
The content of the invention
Present invention aim to address above mentioned problem, there is provided a kind of simple structure, strong operability based on NACF Desulfurizing industrial fume denitrification apparatus.
It is another object of the present invention to utilize above-mentioned desulfuring and denitrifying apparatus, there is provided a kind of technology is easy, efficiency high The method that desulphurization denitration is carried out to industrial smoke.
In order to solve the above technical problems, the technical scheme is that:A kind of industrial smoke based on NACF takes off Sulfuric acid collection device, air inlet are disposed with from lower to upper in sulphur denitrification apparatus, including reaction tower body, the reaction tower body Qu Yi, grid one, desulfurization zone, air inlet area two, grid two, denitration region, outlet area, are located at air inlet on described this body sidewall of reaction tower Further respectively have air inlet pipe one and air inlet pipe two at area one and air inlet area two, reaction tower bodies top is provided with gas outlet, it is described enter Tracheae one is used to be passed through industrial smoke, and the air inlet pipe two is used to be passed through ammonia, and the desulfurization zone is urged for NACF desulfurization Agent reaction bed, the denitration region is NACF denitrating catalyst bed.
In above-mentioned technical proposal, pipeline buffering tank is provided between the air inlet pipe one and reaction tower body, in air inlet pipe one It is further opened with steam inlet.
In above-mentioned technical proposal, 1.5~3 times of a diameter of diameter of air inlet pipe one of pipeline buffering tank.
In above-mentioned technical proposal, top surface and the angled scope of horizontal direction of the sulfuric acid collection device are 5~25 ° and incline Angle.
In above-mentioned technical proposal, the top surface of the sulfuric acid collection device is additionally provided with into water fluid-tight, and its bottom surface is provided with draining valve.
It is a kind of using foregoing desulfuring and denitrifying apparatus to the method for desulfurizing industrial fume denitration, the method specifically includes following step Suddenly:
S1, desulfurization stage:Industrial smoke is passed through from air inlet pipe one, and enters air inlet area one after mixing with vapor, upwards Operation, enters the NACF desulphurization catalyst reaction bed of desulfurization zone by grid one, sulfur dioxide in industrial smoke, In the presence of NACF desulphurization catalyst, catalytic oxidation generation sulfuric acid, sulfuric acid is gradually accumulate in for oxygen, vapor Depart from from NACF under Action of Gravity Field and drop to sulfuric acid collection device;
S2, denitration stage:From NACF desulphurization catalyst reaction bed industrial smoke out, and from air inlet pipe two The ammonia being passed through enters the NACF denitrating catalyst bed of denitration region after air inlet area two mixes through grid two, in activity In the presence of Carbon fibe denitrating catalyst, nitrogen oxides, oxygen and ammonia reaction generation nitrogen and water in industrial smoke are clean Flue gas is excluded behind outlet area by gas outlet.
It should be noted that the performance based on NACF desulfurization/denox catalyst, itself is simultaneously not involved in reaction, raw Into material will not also remain in beds, and its own is in continuous self-renewing, therefore need not regenerate.
In above-mentioned technical proposal, find, in step s 2, ammonia and nitrogen oxides by the long-term experimental exploring of inventor Volume ratio be 0.8~1.3:1, better removal effect can be reached to nitrogen oxides, further preferred its volume ratio is 1 ~1.1:1.
Further, the desulfurization zone empty tower gas velocity control is in 400-2000h-1, priority acccess control is in 600-1500-1;Denitration Area's empty tower gas velocity control is in 5000-20000h-1, it is preferably controlled in 8000-15000h-1
In above-mentioned technical proposal, inventor's research finds, when operation temperature is controlled at 60~200 DEG C in reaction tower body, 80~150 DEG C are preferably controlled in, purified gas is directly discharged into air and will not form white haze, landscape pollution will not be brought, because And need not be processed again.
In above-mentioned technical proposal, the water vapour is saturated vapor.
The desulfurizing industrial fume denitrification apparatus based on NACF and method that the present invention is provided have following beneficial effect Really:
(1) present invention uses catalytic oxidation scrubbing CO_2, makes the SO in flue gas2、O2It is being filled in the desulfurization of lower floor In beds by catalysis oxidation be SO3, SO3Sulfuric acid is generated with the water effect in flue gas, so that the SO in discharge gas2Quilt Removing, the sulfur dioxide in industrial discharge gas is recycled utilization, and byproduct sulfuric acid can sell, or after concentrated processing outward Sell, unharmful substance enters in environment;Sulfuric acid is important industrial chemical, is widely used, and economic worth is high.Using the present invention The low concentration SO in discharge gas is reclaimed in removing2, good environmental benefit and social benefit can be not only obtained, can also obtain good Economic benefit.
(2) present invention removes nitrogen oxides using catalytic reduction method, makes the NO in flue gasx、O2With NH3It is being filled in upper strata Denitrating catalyst bed in N is reduced to by catalysis2And H2O, so that the NO in discharge gasxIt is removed, unharmful substance enters In environment, the environmental benefit and social benefit having.
(3) present invention uses dry method/catalysis method simultaneous SO_2 and NO removal, effectively prevent the energy consumption of wet sprinkling system and blocks up The problems such as plug, at the same after the catalyst for being used once puts into can long-term use, small investment, desulfurization operations are not required to HTHP, Operating cost is low, further, using NACF as catalyst, simultaneous SO_2 and NO removal, efficiency high.
(4) using the purified gas after method of the present invention treatment, when desulfurization operations temperature control is at 60-200 DEG C, after purification Gas be directly discharged into air and will not form white haze, landscape pollution will not be brought, be not required to carry out treatment again.
(5) desulfuring and denitrifying apparatus that the present invention is provided, equipment is simple, and operation is easy, and floor space is small, low cost.
Brief description of the drawings
Fig. 1 is the structural representation of desulfurizing industrial fume denitrification apparatus of the present invention based on NACF.
Description of reference numerals:1st, air inlet pipe one;2nd, steam inlet;3rd, pipeline buffering tank;4th, sulfuric acid collection device;5th, grid One;6th, desulfurization zone;7th, air inlet pipe two;8th, grid two;9th, denitration region;10th, gas outlet;11st, water inlet fluid-tight;12nd, draining valve;13、 Air inlet area one;14th, air inlet area two;15th, outlet area.
Specific embodiment
The present invention is described further with specific embodiment below in conjunction with the accompanying drawings:
As shown in figure 1, the desulfurizing industrial fume denitrification apparatus based on NACF of the invention, including reaction tower sheet Body, sulfuric acid collection device 4, air inlet area 1 is disposed with reaction tower body, grid 1, desulfurization zone 6, is entered from lower to upper Gas area 2 14, grid 28, denitration region 9, outlet area 15.It is located on reaction tower this body sidewall at air inlet area 1 and is provided with air inlet pipe One 1, air inlet pipe 27 is provided with air inlet area 2 14, air inlet pipe 1 is used to be passed through industrial smoke, and air inlet pipe 27 is used to be passed through Ammonia.Reaction tower bodies top is provided with gas outlet 10.Desulfurization zone 6 is NACF desulphurization catalyst reaction bed, denitration region 9 It is NACF denitrating catalyst bed.
In the present embodiment, pipeline buffering tank 3 is provided between air inlet pipe 1 and reaction tower body, is also opened in air inlet pipe 1 If steam inlet 2.After industrial smoke and the water vapour entered from steam inlet 2 tentatively mix in admission line, pipe is entered back into Road surge tank 3 is further mixed.More full and uniform for ease of industrial smoke and water vapour mixing, pipeline buffering tank 3 is straight Footpath is preferably 1.5~3 times of the diameter of air inlet pipe 1.The purpose that pipeline buffering is filled is in order that industrial smoke and water vapour can be Even mixing, therefore, under the guidance of inventive concept, using this area, other common mixing devices fall within protection of the invention Scope.
Further, the top surface of sulfuric acid collection device 4 and the inclination angle that the angled scope of horizontal direction is 5~25 °, preferably 10~20 °.The setting at inclination angle is mainly the collection of sulfuric acid of being more convenient for, and its angle can also be adjusted accordingly according to the actual requirements It is whole.In order to prevent gas from entering sulfuric acid collection device 4, it is additionally provided with into water fluid-tight 11 in the top surface of sulfuric acid collection device 4.Additionally, For ease of periodically reclaiming sulfuric acid resource by draining valve 12, the bottom surface of sulfuric acid collection device 4 is additionally provided with draining valve 12.
The present invention is provided using foregoing desulfuring and denitrifying apparatus to desulfurizing industrial fume denitration below by way of specific embodiment Method, further to show advantages of the present invention and principle.
Embodiment 1
In the present embodiment, the discharge gas for the treatment of:Sulfur dioxide concentration is 400mg/Nm3, nitrous oxides concentration is 800mg/Nm3Coking tail gas, tolerance is about 1000Nm3/ h, temperature is about 150 DEG C.
S1, desulfurization stage:Industrial smoke is passed through from air inlet pipe 1, and preliminary with saturated steam is passed through from steam inlet 2 Further mixed into pipeline buffering tank 3 after mixed, entered back into air inlet area 1, run up, entered de- by grid 1 The NACF desulphurization catalyst reaction bed in sulphur area 6, the empty tower gas velocity of desulfurization zone 6 is controlled in 800h-1, in industrial smoke two Sulfur oxide, oxygen, vapor in the presence of NACF desulphurization catalyst, catalytic oxidation generation sulfuric acid, sulfuric acid by Gradually accumulate to depart from from NACF under gravity and drop to sulfuric acid collection device 4;
S2, denitration stage:From NACF desulphurization catalyst reaction bed industrial smoke out, and from air inlet pipe two 7 ammonias being passed through enter the NACF denitrating catalyst bed of denitration region 9 after air inlet area 2 14 mixes through grid 28, Ammonia is 1.05 with the volume ratio of nitrogen oxides:1, the empty tower gas velocity of denitration region 9 is controlled in 10000h-1, in NACF denitration In the presence of catalyst, nitrogen oxides, oxygen and ammonia reaction generation nitrogen and water in industrial smoke, clean flue gas are through outlet Excluded by gas outlet 10 behind area 15.
Flue gas enters air after desulfurization and denitrification reaction tower, and desulfuration efficiency is 99%, and denitration efficiency is 85%.When sulfuric acid is received When sulfuric acid volume in acquisition means 4 reaches the 2/3 of overall apparatus volume, the sulfuric acid in the emptier of draining valve 12 is opened.
Embodiment 2
In the present embodiment, the discharge gas for the treatment of:Sulfur dioxide concentration is 2000mg/Nm3, nitrous oxides concentration is 500mg/Nm3Industrial Boiler tail gas, tolerance is about 20000Nm3/ h, temperature is about 160 DEG C.
S1, desulfurization stage:Industrial smoke is passed through from air inlet pipe 1, and preliminary with saturated steam is passed through from steam inlet 2 Further mixed into pipeline buffering tank 3 after mixed, entered back into air inlet area 1, run up, entered de- by grid 1 The NACF desulphurization catalyst reaction bed in sulphur area 6, the empty tower gas velocity of desulfurization zone 6 is controlled in 800h-1, in industrial smoke two Sulfur oxide, oxygen, vapor in the presence of NACF desulphurization catalyst, catalytic oxidation generation sulfuric acid, sulfuric acid by Gradually accumulate to depart from from NACF under gravity and drop to sulfuric acid collection device 4;
S2, denitration stage:From NACF desulphurization catalyst reaction bed industrial smoke out, and from air inlet pipe two 7 ammonias being passed through enter the NACF denitrating catalyst bed of denitration region 9 after air inlet area 2 14 mixes through grid 28, Ammonia is 1.05 with the volume ratio of nitrogen oxides:1, the empty tower gas velocity of denitration region 9 is controlled in 10000h-1, in NACF denitration In the presence of catalyst, nitrogen oxides, oxygen and ammonia reaction generation nitrogen and water in industrial smoke, clean flue gas are through outlet Excluded by gas outlet 10 behind area 15.
Flue gas enters air after desulfurization and denitrification reaction tower, and desulfuration efficiency is more than 95%, and denitration efficiency is more than 85%, When the sulfuric acid volume in sulfuric acid collection device 4 reaches the 2/3 of overall apparatus volume, the sulphur in the emptier of draining valve 12 is opened Acid.
One of ordinary skill in the art will be appreciated that embodiment described here is to aid in reader and understands this hair Bright principle, it should be understood that protection scope of the present invention is not limited to such especially statement and embodiment.This area Those of ordinary skill can according to these technical inspirations disclosed by the invention make it is various do not depart from essence of the invention other are each Plant specific deformation and combine, these deformations and combination are still within the scope of the present invention.

Claims (10)

1. a kind of desulfurizing industrial fume denitrification apparatus based on NACF, it is characterised in that:It is described including reaction tower body Sulfuric acid collection device (4), air inlet area one (13), grid one (5), desulfurization zone are disposed with from lower to upper in reaction tower body (6), air inlet area two (14), grid two (8), denitration region (9), outlet area (15), are located at air inlet on described this body sidewall of reaction tower Area one (13) and the place of air inlet area two (14) further respectively have air inlet pipe one (1) and air inlet pipe two (7), and reaction tower bodies top is provided with Gas outlet (10), the air inlet pipe one (1) is described de- for being passed through ammonia for being passed through industrial smoke, the air inlet pipe two (7) Sulphur area (6) is NACF desulphurization catalyst reaction bed, and the denitration region (9) is NACF denitrating catalyst bed Layer.
2. a kind of desulfuring and denitrifying apparatus based on NACF according to claim 1, it is characterised in that:The air inlet Pipeline buffering tank (3) is provided between pipe one (1) and reaction tower body, steam inlet (2) is further opened with air inlet pipe one (1).
3. a kind of desulfuring and denitrifying apparatus based on NACF according to claim 1, it is characterised in that:The pipeline 1.5~3 times of a diameter of diameter of air inlet pipe one (1) of surge tank (3).
4. according to a kind of any described desulfuring and denitrifying apparatus based on NACF of claim 1-3, it is characterised in that:Institute The top surface and the angled scope of horizontal direction of stating sulfuric acid collection device (4) are 5~25 ° of inclination angle.
5. according to a kind of any described desulfuring and denitrifying apparatus based on NACF of claim 1-3, it is characterised in that:Institute The top surface for stating sulfuric acid collection device (4) is additionally provided with into water fluid-tight (11), and its bottom surface is provided with draining valve (12).
6. a kind of any described desulfuring and denitrifying apparatus of utilization claim 1-5 are to the method for desulfurizing industrial fume denitration, and it is special Levy and be:The method specifically includes following steps:
S1, desulfurization stage:Industrial smoke is passed through from air inlet pipe one (1), and enters air inlet area one (13) after mixing with vapor, to Upper operation, the NACF desulphurization catalyst reaction bed of desulfurization zone (6) is entered by grid one (5), in industrial smoke In the presence of NACF desulphurization catalyst, catalytic oxidation generates sulfuric acid, sulfuric acid for sulfur dioxide, oxygen, vapor It is gradually accumulate under Action of Gravity Field to depart from from NACF and drops to sulfuric acid collection device (4);
S2, denitration stage:From NACF desulphurization catalyst reaction bed industrial smoke out, and from air inlet pipe two (7) The ammonia being passed through enters the NACF denitrating catalyst of denitration region (9) after air inlet area two (14) mixes through grid two (8) Bed, in the presence of NACF denitrating catalyst, nitrogen oxides, oxygen and ammonia the reaction generation nitrogen in industrial smoke Gas and water, clean flue gas are excluded after outlet area (15) by gas outlet (10).
7. it is according to claim 6 based on NACF to the method for desulfurizing industrial fume denitration, it is characterised in that:Institute State in step S2, ammonia is 0.8~1.3 with the volume ratio of nitrogen oxides:1.
8. it is according to claim 6 based on NACF to the method for desulfurizing industrial fume denitration, it is characterised in that:Institute The control of desulfurization zone (6) empty tower gas velocity is stated in 400-2000h-1;Denitration region (9) empty tower gas velocity is controlled in 5000-20000h-1
9. according to claim 6-8 it is any it is described based on NACF to the method for desulfurizing industrial fume denitration, its feature It is:Operation temperature control is at 60~200 DEG C in the reaction tower body.
10. according to claim 6-8 it is any it is described based on NACF to the method for desulfurizing industrial fume denitration, its feature It is:The water vapour is saturated vapor.
CN201710050689.2A 2017-01-23 2017-01-23 A kind of desulfurizing industrial fume denitrification apparatus and method based on NACF Withdrawn CN106823785A (en)

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CN107485981A (en) * 2017-09-05 2017-12-19 北京科技大学 A kind of equipment for denitrifying flue gas and method
CN108612577A (en) * 2018-04-13 2018-10-02 哈尔滨工程大学 A kind of ship activated carbon method tail gas denitrification apparatus and method
CN110141963A (en) * 2019-06-12 2019-08-20 新昌县以琳环保科技有限公司 Flue gas desulfurization denitration dust-removing device
CN110496527A (en) * 2018-05-16 2019-11-26 上海梅山钢铁股份有限公司 A kind of method of coke oven flue exhuast gas desulfurization denitration
CN111495138A (en) * 2020-04-26 2020-08-07 安徽顺达环保科技股份有限公司 Desulfurization and denitrification equipment and process capable of circularly accelerating flue gas cracking catalysis
CN111495138B (en) * 2020-04-26 2022-05-06 安徽顺达环保科技股份有限公司 Desulfurization and denitrification equipment and process capable of circularly accelerating flue gas cracking catalysis

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CN107485981A (en) * 2017-09-05 2017-12-19 北京科技大学 A kind of equipment for denitrifying flue gas and method
CN107485981B (en) * 2017-09-05 2020-05-12 北京科技大学 Flue gas denitration device and method
CN108612577A (en) * 2018-04-13 2018-10-02 哈尔滨工程大学 A kind of ship activated carbon method tail gas denitrification apparatus and method
CN108612577B (en) * 2018-04-13 2021-12-07 哈尔滨工程大学 Device and method for denitration of tail gas of ship by activated carbon method
CN110496527A (en) * 2018-05-16 2019-11-26 上海梅山钢铁股份有限公司 A kind of method of coke oven flue exhuast gas desulfurization denitration
CN110141963A (en) * 2019-06-12 2019-08-20 新昌县以琳环保科技有限公司 Flue gas desulfurization denitration dust-removing device
CN111495138A (en) * 2020-04-26 2020-08-07 安徽顺达环保科技股份有限公司 Desulfurization and denitrification equipment and process capable of circularly accelerating flue gas cracking catalysis
CN111495138B (en) * 2020-04-26 2022-05-06 安徽顺达环保科技股份有限公司 Desulfurization and denitrification equipment and process capable of circularly accelerating flue gas cracking catalysis

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