CN108261904A - A kind of dry method multi-pollutant for low-temperature flue gas cooperates with high-efficient purification reactor - Google Patents

A kind of dry method multi-pollutant for low-temperature flue gas cooperates with high-efficient purification reactor Download PDF

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CN108261904A
CN108261904A CN201810275670.2A CN201810275670A CN108261904A CN 108261904 A CN108261904 A CN 108261904A CN 201810275670 A CN201810275670 A CN 201810275670A CN 108261904 A CN108261904 A CN 108261904A
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bed
reactor
pretreatment
flue gas
adsorbent bed
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陈雄波
岑超平
刘莹
方平
唐志雄
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South China Institute of Environmental Science of Ministry of Ecology and Environment
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South China Institute of Environmental Science of Ministry of Ecology and Environment
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    • 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
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
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    • B01D53/46—Removing components of defined structure
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    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
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    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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Abstract

The invention discloses a kind of dry method multi-pollutants for low-temperature flue gas to cooperate with high-efficient purification reactor.The reactor is dry process reaction device, includes pretreatment bed, catalytic bed and the adsorbent bed of 3~4 series connection, sets charge door and material taking mouth at the top and bottom of each bed respectively, and the arrangement quantity and sequence of bed are adjusted according to the feature of processing exhaust gas；Pre-process the bed filling grains of sand or (and) granular desulfuration agent, catalytic bed filling trifolium-shaped or tooth ball shape catalyst, adsorbent bed filling activated carbon or activated coke particle；Exhaust gas enters from the upside of reactor, is discharged after purified from the downside of reactor.The present invention realizes the collaboration high-efficient purification of the pollutants such as particulate matter, sulfur dioxide, nitrogen oxides, carbon monoxide, volatile organic matter, heavy metal, bioxin in a dry process reaction device, shorten purification process, non-wastewater discharge has the characteristics that compact-sized, investment cost and operating cost is low, takes up an area less, operation and maintenance are convenient, applied widely.

Description

A kind of dry method multi-pollutant for low-temperature flue gas cooperates with high-efficient purification reactor
Technical field
The invention belongs to technical field of air pollution control, and in particular to a kind of dry method multi-pollutant for low-temperature flue gas Cooperate with high-efficient purification reactor.
Background technology
In recent years, the serious atmosphere pollution in China has received widespread attention, and it is very urgent to improve atmospheric environment.It is conventional big Gas pollutant includes particulate matter (PM), sulfur dioxide (SO2), nitrogen oxides (NOx), carbon monoxide (CO) etc., poisonous and harmful dirt It contaminates object and includes volatile organic matter (VOCs), heavy metal (), bioxin such as Hg, As, Pb etc..Common particle purifying technology packet Include electrostatic precipitation, bag-type dust, cyclone dust removal etc., common SO2Purification techniques includes wet method, semidry method, dry method etc., common NOx purification techniques includes selective catalytic reduction (SCR), selective non-catalytic reduction (SNCR), oxidative absorption etc., common VOCs control technologies include combustion method (catalysis burning or flame combustion), absorption method etc., and common CO control technologies are combustion method, Common heavy metal control technology is active carbon adsorption, and common bioxin control technology is active carbon adsorption and catalysis oxygen Change method.In air harnessing project, it usually needs various individual event Pollutant Control Technologys are combined series connection, cost can be caused Height takes up an area the drawbacks such as big, operation and maintenance difficulty is big, therefore develops multi-pollutant Collaborative Control technology and be of great significance.
In recent years, China develops a series of multi-pollutant Collaborative Control technologies or equipment, but mostly still by multiple independences Reactor composition.Such as：Patent 200810047472.7 disclose a kind of sintering device flue gas multiple pollutant removing process and its System, the technique first carry out SCR denitration processing to tail flue gas；Then to the tail flue gas and the head cigarette of non-denitration after denitration Gas is carried out at the same time primary dust removing processing, removes the dust soot particle in flue gas；Recirculating fluidized bed desulfurization process is carried out to flue gas again；Most Two-stage dust removal processing is carried out to flue gas afterwards, removes the generation composition granule in flue gas, and by generation composition granule for recycling, simultaneously Isolate clean flue gas.Patent 201010100009.1 discloses a kind of method for removing various gaseous pollutants in smoke gas, it Using an absorption tower to SO in flue gas2, NOX, mercury vapour and CO2It is removed comprehensively.201210410620.3 disclosure of patent A kind of method of flue gas of refuse burning multi-pollutant Collaborative Control.By development of new composite absorption liquid and improve existing absorption Tower structure, using the two-stage series connection tupe of " oxidative absorption/complexing+absorption " in same equipment simultaneously efficient removal rubbish Multiple pollutant in incineration flue gas.Patent 200710052130.X discloses wet type ammonia that is a kind of while removing multiple pollutant Method flue gas cleaning technology and its system, the technique first make the oxidation of nitric oxide in flue gas then make in flue gas into nitrogen dioxide Sulfur dioxide and nitrogen dioxide generation ammonium sulfite, ammonium nitrate and ammonium nilrite are reacted with ammonium hydroxide, then make sulfurous acid therein Ammonium and ammonium nilrite oxidation generation byproduct of ammonium sulfate and ammonium nitrate, while carry out an electric precipitation processing, removing again to flue gas Sulfur trioxide and ammonium hydroxide aerosol in flue gas, finally obtain clean flue gas.It is more that patent 201310542552.0 discloses one kind The flue gas purification system and technique of pollutant integration dry removal, after flue gas comes out from the back-end ductwork of economizer, flue gas In SOx and HCl and reactive desulfurizing agent, flue gas carries the complete desulfurizing agent of unreacted and deacidified product mixed with ammonia after into one Body removing tower removes dust, unreacted desulfurizing agent, deacidified product and the NOx in mixed system.
Invention content
To solve the disadvantage that the prior art and shortcoming, the purpose of the present invention is to provide a kind of for low-temperature flue gas Dry method multi-pollutant cooperates with high-efficient purification reactor.The reactor have it is compact-sized, investment cost and operating cost is low, take up an area Less, the features such as operation and maintenance are convenient, applied widely.The present invention realizes particulate matter, SO in a dry process reaction device2、NOx、 The collaboration high-efficient purification of the pollutants such as CO, VOCs, heavy metal, bioxin, shortens purification process, non-wastewater discharge.
For achieving the above object, the present invention adopts the following technical scheme that：
A kind of dry method multi-pollutant for low-temperature flue gas cooperates with high-efficient purification reactor, including babinet, several grid, into Tracheae and air outlet pipe；Babinet is set gradually from left to right as the first cavity zone by grid, pretreatment bed area, catalytic bed area, inhaled Fu Chuan areas and the second cavity zone；Babinet upper left-hand is equipped with air inlet, and air inlet is connect with air inlet pipe, and spray ammonia is equipped in air inlet pipe Component, lower box right side are equipped with gas outlet, and gas outlet is connect with air outlet pipe；The top of grid is connect with top of the box, lattice Net bends certain angle to the left or the setting that is tilted to the left, the bottom connection babinet lower left side inner wall of the grid of the leftmost side；Case Pretreatment bed area charge door, catalytic bed area charge door and adsorbent bed area charge door are equipped at the top of body, pretreatment bed area charge door is urged Removable cover is equipped with above Hua Chuan areas charge door and adsorbent bed area charge door；Pre-process the bed area filling grains of sand or the filling grains of sand and Granular desulfuration agent is as pretreatment bed, and catalytic bed area filling trifolium-shaped or tooth ball shape catalyst are as catalytic bed, adsorbent bed area Activated coke particle is loaded as adsorbent bed；Pretreatment bed, catalytic bed, adsorbent bed bottom are respectively equipped with material taking mouth, material taking mouth connection There is lower hopper, and lower hopper upper end is equipped with movable sealing plate；The grid of the leftmost side surrounds the first sky with babinet left side, top of the box Alveolus, the grid of the rightmost side, the lower hopper of the rightmost side and babinet surround the second cavity zone.
Preferably, the main component of the granular desulfuration agent is one kind in calcium oxide or calcium hydroxide.
A kind of dry method multi-pollutant for low-temperature flue gas cooperates with high-efficient purification reactor, including babinet, several grid, into Tracheae and air outlet pipe；Babinet is set gradually from left to right by grid as the first cavity zone, pretreatment bed area, adsorbent bed area and the Two cavity zones；Babinet upper left-hand is equipped with air inlet, and air inlet is connect with air inlet pipe, and gas outlet is equipped on the right side of lower box, is gone out Gas port is connect with air outlet pipe；The top of grid is connect with top of the box, and grid bends certain angle or is tilted to the left to the left Setting, the bottom connection babinet lower left side inner wall of the grid of the leftmost side；Top of the box is equipped with pretreatment bed area's charge door and suction Fu Chuan areas charge door, pretreatment bed area charge door, adsorbent bed area charge door top are equipped with removable cover；It is husky to pre-process the filling of bed area As pretreatment bed, activated coke particle loads as adsorbent bed in adsorbent bed area for grain or the filling grains of sand and granular desulfuration agent；Pre- place Reason bed, adsorbent bed bottom are respectively equipped with material taking mouth, and material taking mouth is connected with lower hopper, and lower hopper upper end is equipped with movable sealing plate； The grid of the leftmost side surrounds the first cavity zone, the grid of the rightmost side, the lower hopper of the rightmost side and case with babinet left side, top of the box Body surrounds the second cavity zone.
Preferably, the main component of the granular desulfuration agent is one kind in calcium oxide or calcium hydroxide.
In above-mentioned reactor, the grains of sand are regenerated or are replaced according to the requirement of dust removing effects, and regeneration is washing or heat Wind is swept；Granular desulfuration agent is according to SO2The requirement of clean-up effect is replaced；Trifolium-shaped or tooth ball shape catalyst are according to NOx Clean-up effect is regenerated or is replaced, and regeneration is heating；Activated coke or active carbon particle are according to design requirement regular regeneration Or replace, regeneration method is purged for hot steam.The arrangement quantity and sequence of catalytic bed and adsorbent bed are according to the feature for handling exhaust gas It is adjusted.
When reactor of the present invention is used for the flue gas that temperature is 250~300 DEG C, reactor is sequentially arranged 1 pretreatment Bed, 1~2 catalytic bed and 1 adsorbent bed, the pretreatment bed filling grains of sand, catalytic bed filling trifolium-shaped or tooth ball shape catalyst, Adsorbent bed loads activated coke particle.
When reactor of the present invention is used for the sulfur-containing smoke gas that temperature is 150~250 DEG C, reactor is sequentially arranged 1 in advance Handle bed, 1~2 catalytic bed and 1 adsorbent bed, the pretreatment bed filling grains of sand and granular desulfuration agent, catalytic bed filling clover Type or tooth ball shape catalyst, adsorbent bed filling activated coke particle.
Reactor of the present invention for temperature be 150~250 DEG C without sulphur flue gas when, reactor be sequentially arranged 1 it is pre- Bed, 1~2 catalytic bed and 1 adsorbent bed are handled, the pretreatment bed filling grains of sand, catalytic bed filling trifolium-shaped or tooth ball-type are urged Agent, adsorbent bed filling activated coke particle.
When reactor of the present invention is used for the flue gas that temperature is 60~150 DEG C, reactor is sequentially arranged 1 pretreatment Bed, 2 adsorbent beds, the pretreatment bed filling grains of sand and granular desulfuration agent, adsorbent bed filling active carbon particle.
The principle of the present invention is：The grains of sand in pretreatment bed intercept the sulphur ammonium generated after particulate matter and spray ammonia in exhaust gas Salt, granular desulfuration agent and the SO in exhaust gas2Reaction makes its purification, therefore pretreatment bed can be to avoid particulate matter to catalytic bed and suction The blocking of attached bed, while avoid toxic action of the sulphur ammonium salt to catalyst；Trifolium-shaped or tooth ball shape catalyst in catalytic bed Nitrogen oxides, volatile organic matter in purification exhaust gas is He bioxin；Activated carbon or activated coke particulate burning purifying in adsorbent bed give up SO in gas2, volatile organic matter, heavy metal is He bioxin.Bed, catalytic bed and adsorbent bed organic assembling are pre-processed, is overcome Exhaust gas temperature, into grading factors to the restriction effect adsorbing, be catalyzed.
Compared with prior art, the present invention has the following advantages and beneficial effects：
(1) present invention realizes particulate matter, SO in a dry process reaction device2, NOx, CO, VOCs, heavy metal, bioxin etc. The collaboration high-efficient purification of pollutant, by a reactor realize multiple process sections, multiple reactors connect clean-up effect, Purification process is shortened, there are the advantages such as compact-sized, investment cost and operating cost is low, take up an area less, operation and maintenance facilitate.
(2) present invention is not related to any wet method unit, and non-wastewater discharge avoids the wastewater treatment that gas cleaning is brought and asks Topic.
(3) for reactor of the present invention using grain dress, the scavenging material of material filling type, not only purification efficiency is high, but also installs, regeneration It is all very convenient with replacing.
(4) reactor of the present invention is applied widely, available for boiler, kiln (cement kiln road, glass furnace, furnace Stove), metal casting stove, waste incinerator, the industries such as ship waste gas pollution control and treatment.
Description of the drawings
Fig. 1 is the structure of reactor figure of the present invention, in figure：1-pretreatment bed, 2-catalytic bed, 3-catalytic bed, 4-inhale Attached bed, 5-removable cover, 6-spray ammonia component, 7-air inlet pipe, 8-grid, 9-movable sealing plate, 10-lower hopper, 11-go out Tracheae.
Specific embodiment
With reference to embodiment and attached drawing, the present invention is described in further detail, but embodiments of the present invention are unlimited In this.
The present invention provides a kind of dry method multi-pollutants for low-temperature flue gas to cooperate with high-efficient purification reactor, for temperature For 150~300 DEG C of flue gas, structure is as shown in Figure 1；Including babinet, several grid 8, air inlet pipe 7 and air outlet pipe 11；Babinet It is set gradually from left to right by grid 8 as the first cavity zone, pretreatment bed area, catalytic bed area, adsorbent bed area and the second cavity Area；Babinet upper left-hand is equipped with air inlet, and air inlet is connect with air inlet pipe 7, and spray ammonia component, lower box are equipped in air inlet pipe 7 Right side is equipped with gas outlet, and gas outlet is connect with air outlet pipe 11；The top of grid 8 is connect with top of the box, and grid 8 is bent to the left Certain angle or the setting that is tilted to the left, the bottom connection babinet lower left side inner wall of the grid of the leftmost side；Top of the box is equipped with Pre-process bed area charge door, catalytic bed area charge door and adsorbent bed area charge door, pretreatment bed area charge door, the charging of catalytic bed area Removable cover 5 is equipped with above mouth and adsorbent bed area charge door；Pre-process the bed area filling grains of sand or the filling grains of sand and granular desulfurization As pretreatment bed 1, catalytic bed area filling trifolium-shaped or tooth ball shape catalyst as catalytic bed 2, the filling of adsorbent bed area is lived for agent Property coke particle is as adsorbent bed 3；Pretreatment bed 1, catalytic bed 2,3 bottom of adsorbent bed are respectively equipped with material taking mouth, and material taking mouth is connected with Lower hopper 10, and 10 upper end of lower hopper is equipped with movable sealing plate 9；The grid of the leftmost side on the left of babinet, top of the box surround the One cavity zone, the grid of the rightmost side, the lower hopper of the rightmost side and babinet surround the second cavity zone.
The present invention provides a kind of dry method multi-pollutants for low-temperature flue gas to cooperate with high-efficient purification reactor, for temperature For 60~150 DEG C of flue gas, including babinet, several grid, air inlet pipe and air outlet pipe；Babinet is from left to right set successively by grid It is set to the first cavity zone, pretreatment bed area, adsorbent bed area and the second cavity zone；Babinet upper left-hand is equipped with air inlet, air inlet It is connect with air inlet pipe, gas outlet is equipped on the right side of lower box, gas outlet is connect with air outlet pipe；The top of grid is and top of the box Connection, grid bends certain angle to the left or the setting that is tilted to the left, the bottom connection babinet lower left side of the grid of the leftmost side Inner wall；Top of the box is equipped with pretreatment bed area's charge door and adsorbent bed area charge door, and pretreatment bed area charge door, adsorbent bed area add Removable cover is equipped with above material mouth；It pre-processes the bed area filling grains of sand or the filling grains of sand and granular desulfuration agent is used as pretreatment bed, Activated coke particle is loaded as adsorbent bed in adsorbent bed area；Pretreatment bed, adsorbent bed bottom are respectively equipped with material taking mouth, material taking mouth connection There is lower hopper, and lower hopper upper end is equipped with movable sealing plate；The grid of the leftmost side surrounds the first sky with babinet left side, top of the box Alveolus, the grid of the rightmost side, the lower hopper of the rightmost side and babinet surround the second cavity zone.
Using above-mentioned reactor to waste incinerator waste gas purification：
Embodiment 1
Using reactor of the present invention to the waste incinerator waste gas purification that temperature is 160~250 DEG C, the master of technique Body is a dry process reaction device, and as shown in Figure 1, reactor is sequentially arranged 1 pretreatment bed, 2 catalytic beds and 1 suction to structure Attached bed, the pretreatment bed filling grains of sand and granular calcium oxide desulfurizing agent, catalytic bed filling tooth ball shape catalyst, adsorbent bed filling activity It is burnt；Exhaust gas enters from the upside of reactor, is discharged after purified from the downside of reactor.Group before waste incinerator waste gas purification Become：Particulate matter is 439mg/m3、SO2For 439mg/m3, HCl 131mg/m3, NOx 528mg/m3, CO 150mg/m3、 VOCs is 635mg/m3, mercury and mercuric compounds 0.12mg/m3, bioxin 2.1ng TEQ/m3.After waste incinerator waste gas purification It forms and is：Particulate matter is 12mg/m3、SO2For 51mg/m3, HCl 24mg/m3, NOx 10mg/m3, CO 20mg/m3、VOCs For 25mg/m3, mercury and mercuric compounds 0.02mg/m3, bioxin 0.14ng TEQ/m3。
When granular material discharged concentration is higher than 30mg/m3When, replace the grains of sand；Work as SO2Concentration of emission is higher than 100mg/m3When, more Change granular calcium oxide desulfurizing agent；When NOx emission concentration is higher than 300mg/m3When, replace tooth ball shape catalyst；Activated coke particle one Zhou Zaisheng is primary, is replaced after regenerating 10 times.
Embodiment 2
Using reactor of the present invention to the coal-burning boiler waste gas purification that temperature is 250~300 DEG C, the main body of technique For a dry process reaction device, reactor is sequentially arranged 1 pretreatment bed, 1 catalytic bed and 1 adsorbent bed, pretreatment bed filling The grains of sand, catalytic bed filling tooth ball shape catalyst, adsorbent bed filling activated coke；Exhaust gas enters from the upside of reactor, after purified It is discharged from the downside of reactor.Composition before coal-burning boiler waste gas purification is：Particulate matter is 800mg/m3、SO2For 500mg/m3、 NOx is 280mg/m3, CO 30mg/m3, VOCs 20mg/m3, mercury and mercuric compounds 0.1mg/m3.Coal-burning boiler waste gas purification Composition afterwards is：Particulate matter is 10mg/m3、SO2For 20mg/m3, NOx 50mg/m3, CO 5mg/m3, VOCs 5mg/m3, mercury And its compound 0.01mg/m3。
When granular material discharged concentration is higher than 30mg/m3When, replace the grains of sand；When NOx emission concentration is higher than 200mg/m3When, more Change tooth ball shape catalyst；The regeneration in one week of activated coke particle is primary, is replaced after regenerating 8 times.
Embodiment 3
It is 150~250 DEG C ceramic kiln (fuel is natural gas) exhaust gas to temperature using reactor of the present invention Purification, the main body of technique is a dry process reaction device, and reactor is sequentially arranged 1 pretreatment bed, 1 catalytic bed and 1 absorption Bed, the pretreatment bed filling grains of sand, catalytic bed filling trifolium-shaped catalyst, adsorbent bed filling activated coke；Exhaust gas is from reactor Upside enters, and is discharged after purified from the downside of reactor.Composition before ceramic kiln waste gas purification is：Particulate matter is 500mg/ m3、SO2For 300mg/m3, HCl be
30mg/m3, NOx 500mg/m3, CO 25mg/m3, VOCs 15mg/m3, mercury and mercuric compounds 0.1mg/m3.Pottery Composition after porcelain kiln waste gas purification is：Particulate matter is 10mg/m3、SO2For 20mg/m3, HCl 5mg/m3, NOx 30mg/m3、 CO is 5mg/m3, VOCs 5mg/m3, mercury and mercuric compounds 0.02mg/m3。
When granular material discharged concentration is higher than 30mg/m3When, washing regeneration is carried out to the grains of sand；When NOx emission concentration is higher than 80mg/m3When, heating regeneration is carried out to trifolium-shaped catalyst；The regeneration in one week of activated coke particle is primary, is replaced after regenerating 8 times.
Embodiment 4
It is 60~150 DEG C of aluminium section bar casting furnace waste gas purification to temperature using reactor of the present invention, technique Main body is a dry process reaction device, and reactor is sequentially arranged 1 pretreatment bed, 2 adsorbent beds, the pretreatment bed filling grains of sand and grain Shape desulfurizing agent, catalytic bed filling trifolium-shaped catalyst, adsorbent bed filling activated carbon；Exhaust gas enters from the upside of reactor, warp It is discharged after purification from the downside of reactor.Composition before aluminium section bar casting furnace waste gas purification is：Particulate matter is 200mg/m3、SO2For 200mg/m3, HCl 20mg/m3, NOx 300mg/m3, CO 15mg/m3, VOCs 15mg/m3, mercury and mercuric compounds 0.1mg/m3.Composition after aluminium section bar casting furnace waste gas purification is：Particulate matter is 10mg/m3、SO2For 10mg/m3, HCl 3mg/ m3, NOx 50mg/m3, CO 5mg/m3, VOCs 5mg/m3, mercury and mercuric compounds 0.02mg/m3。
When granular material discharged concentration is higher than 20mg/m3When, replace the grains of sand；Active carbon particle regeneration in one week is primary, regeneration 10 It is replaced after secondary.
Embodiment 5
Using reactor of the present invention to the glass furnace waste gas purification that temperature is 160~250 DEG C, the main body of technique For a dry process reaction device, reactor is sequentially arranged 1 pretreatment bed, 2 catalytic beds and 1 adsorbent bed, pretreatment bed filling The grains of sand and granular calcium hydroxide desulfurizing agent, catalytic bed filling tooth ball shape catalyst, adsorbent bed filling activated coke；Exhaust gas is from reactor Upside enter, it is purified after from the downside of reactor discharge.Composition before glass furnace waste gas purification is：Particulate matter is 300mg/m3、SO2For 800mg/m3, HCl 20mg/m3, NOx 2000mg/m3, CO 30mg/m3, VOCs 15mg/m3, mercury And its compound 0.1mg/m3.Composition after glass furnace waste gas purification is：Particulate matter is 12mg/m3、SO2For 50mg/m3、HCl For 3mg/m3, NOx 70mg/m3, CO 5mg/m3, VOCs 5mg/m3, mercury and mercuric compounds 0.02mg/m3。
When granular material discharged concentration is higher than 30mg/m3When, replace the grains of sand；Work as SO2Concentration of emission is higher than 200mg/m3When, more Change granular calcium hydroxide desulfurizing agent；When NOx emission concentration is higher than 300mg/m3When, replace tooth ball shape catalyst；Activated coke particle Regeneration in one week is primary, is replaced after regenerating 10 times.
Embodiment 6
The marine exhaust that temperature is 160~250 DEG C is purified using reactor of the present invention, the main body of technique is one A dry process reaction device, reactor are sequentially arranged 1 pretreatment bed, 1 catalytic bed and 1 adsorbent bed, and pretreatment bed filling is granular Calcium oxide desulfurizing agent, catalytic bed filling tooth ball shape catalyst, adsorbent bed filling activated coke；Exhaust gas enters from the upside of reactor, It is discharged after purified from the downside of reactor.Marine exhaust purification before composition be：Particulate matter is 200mg/m3、SO2For 500mg/ m3, NOx 500mg/m3, CO 100mg/m3, VOCs 80mg/m3, mercury and mercuric compounds 0.1mg/m3.After marine exhaust purification Composition be：Particulate matter is 10mg/m3、SO2For 20mg/m3, NOx 50mg/m3, CO 10mg/m3, VOCs 10mg/m3, mercury And its compound 0.02mg/m3。
Work as SO2Concentration of emission is higher than 100mg/m3When, replace granular calcium hydroxide desulfurizing agent；When NOx emission concentration is higher than 100mg/m3When, replace tooth ball shape catalyst；The regeneration in one week of activated coke particle is primary, is replaced after regenerating 8 times.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification, Equivalent substitute mode is should be, is included within protection scope of the present invention.

Claims (10)

1. a kind of dry method multi-pollutant for low-temperature flue gas cooperates with high-efficient purification reactor, which is characterized in that if including babinet, Dry grid, air inlet pipe and air outlet pipe；Babinet is set gradually from left to right as the first cavity zone by grid, pretreatment bed area, urged Hua Chuan areas, adsorbent bed area and the second cavity zone；Babinet upper left-hand is equipped with air inlet, and air inlet is connect with air inlet pipe, air inlet pipe It is interior to be equipped with spray ammonia component, gas outlet is equipped on the right side of lower box, gas outlet is connect with air outlet pipe；The top of grid with babinet top Portion connects, and grid bends certain angle to the left or the setting that is tilted to the left, and the bottom connection lower box of the grid of the leftmost side is left Side inner wall；Top of the box is equipped with pretreatment bed area charge door, catalytic bed area charge door and adsorbent bed area charge door, pretreatment bed area Removable cover is equipped with above charge door, catalytic bed area charge door and adsorbent bed area charge door；Pre-process the bed area filling grains of sand or The grains of sand and granular desulfuration agent are loaded as pretreatment bed, catalytic bed area filling trifolium-shaped or tooth ball shape catalyst are as catalysis Activated coke particle loads as adsorbent bed in bed, adsorbent bed area；Pretreatment bed, catalytic bed, adsorbent bed bottom are connected separately with blanking Bucket, and lower hopper upper end is equipped with movable sealing plate；The grid of the leftmost side surrounds the first cavity zone with babinet left side, top of the box, The grid of the rightmost side, the lower hopper of the rightmost side and babinet surround the second cavity zone.
2. a kind of dry method multi-pollutant for low-temperature flue gas according to claim 1 cooperates with high-efficient purification reactor, It is characterized in that, the main component of the granular desulfuration agent is one kind in calcium oxide or calcium hydroxide.
3. a kind of dry method multi-pollutant for low-temperature flue gas according to claim 1 cooperates with high-efficient purification reactor, It is characterized in that, the reactor sets 1 pretreatment bed, 1~2 catalytic bed and 1 adsorbent bed.
4. a kind of dry method multi-pollutant for low-temperature flue gas according to claim 1 cooperates with high-efficient purification reactor, Be characterized in that, when the reactor for treatment temperature is 250~300 DEG C of flue gas, reactor arrange 1 pretreatment bed, 1~ 2 catalytic beds and 1 adsorbent bed, the pretreatment bed area filling grains of sand are as pretreatment bed, catalytic bed area filling trifolium-shaped or tooth For ball shape catalyst as catalytic bed, activated coke particle loads as adsorbent bed in adsorbent bed area.
5. a kind of dry method multi-pollutant for low-temperature flue gas according to claim 1 cooperates with high-efficient purification reactor, Be characterized in that, when the reactor for temperature is 150~250 DEG C of sulfur-containing smoke gas, reactor arrange 1 pretreatment bed, 1~ 2 catalytic beds and 1 adsorbent bed, the pretreatment bed area filling grains of sand and granular desulfuration agent are as pretreatment bed, the filling of catalytic bed area As catalytic bed, activated coke particle loads as adsorbent bed in adsorbent bed area for trifolium-shaped or tooth ball shape catalyst.
6. a kind of dry method multi-pollutant for low-temperature flue gas according to claim 1 cooperates with high-efficient purification reactor, Be characterized in that, the reactor for temperature be 150~250 DEG C without sulphur flue gas when, reactor arrange 1 pretreatment bed, 1~ 2 catalytic beds and 1 adsorbent bed, the pretreatment bed area filling grains of sand are as pretreatment bed, catalytic bed area filling trifolium-shaped or tooth For ball shape catalyst as catalytic bed, activated coke particle loads as adsorbent bed in adsorbent bed area.
7. a kind of dry method multi-pollutant for low-temperature flue gas cooperates with high-efficient purification reactor, which is characterized in that if including babinet, Dry grid, air inlet pipe and air outlet pipe；Babinet is set gradually from left to right as the first cavity zone by grid, pretreatment bed area, inhaled Fu Chuan areas and the second cavity zone；Babinet upper left-hand is equipped with air inlet, and air inlet is connect with air inlet pipe, is equipped on the right side of lower box Gas outlet, gas outlet are connect with air outlet pipe；The top of grid is connect with top of the box, grid bend to the left certain angle or Be tilted to the left setting, the bottom connection babinet lower left side inner wall of the grid of the leftmost side；Top of the box is equipped with pretreatment bed area and adds Material mouth and adsorbent bed area charge door, pretreatment bed area charge door, adsorbent bed area charge door top are equipped with removable cover；Pre-process bed The grains of sand or the filling grains of sand and granular desulfuration agent load as pretreatment bed in area, and adsorbent bed area filling activated coke particle is as absorption Bed；Pretreatment bed, adsorbent bed bottom are connected separately with lower hopper, and lower hopper upper end is equipped with movable sealing plate；The lattice of the leftmost side Net surrounds the first cavity zone with babinet left side, top of the box, and the grid of the rightmost side, the lower hopper of the rightmost side and babinet surround second Cavity zone.
8. a kind of dry method multi-pollutant for low-temperature flue gas according to claim 7 cooperates with high-efficient purification reactor, It is characterized in that, the main component of the granular desulfuration agent is one kind in calcium oxide or calcium hydroxide.
9. a kind of dry method multi-pollutant for low-temperature flue gas according to claim 7 cooperates with high-efficient purification reactor, It is characterized in that, the reactor sets 1 pretreatment bed and 1 adsorbent bed.
10. a kind of dry method multi-pollutant for low-temperature flue gas according to claim 7 cooperates with high-efficient purification reactor, It is characterized in that, when the reactor is used for the flue gas that temperature is 60~150 DEG C, reactor arranges 1 pretreatment bed, 2 absorption Bed, the pretreatment bed area filling grains of sand and granular desulfuration agent are as pretreatment bed, and adsorbent bed area filling active carbon particle is as absorption Bed.
CN201810275670.2A 2018-03-30 2018-03-30 A kind of dry method multi-pollutant for low-temperature flue gas cooperates with high-efficient purification reactor Pending CN108261904A (en)

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