CN106861429A - High efficiency composition catalytic oxidation desulfurization denitrating system - Google Patents
High efficiency composition catalytic oxidation desulfurization denitrating system Download PDFInfo
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- CN106861429A CN106861429A CN201710225944.2A CN201710225944A CN106861429A CN 106861429 A CN106861429 A CN 106861429A CN 201710225944 A CN201710225944 A CN 201710225944A CN 106861429 A CN106861429 A CN 106861429A
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- Prior art keywords
- high efficiency
- efficiency composition
- tower
- catalytic oxidation
- desulfurization denitrating
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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
- B01D53/8637—Simultaneously removing sulfur oxides and nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention provides a kind of high efficiency composition catalytic oxidation desulfurization denitrating system, including：At least two-stage identical high efficiency composition tower, oxidative system, absorbent stocking system, catalyst storage system and monitoring aiutage, wherein：High efficiency composition tower each other with the import of bottom by connecting pipe head and the tail connected by the gas outlet on top, Industrial Boiler exhaust outlet is connected by admission line at the import of the one-level high efficiency composition tower bottom of series connection, oxidative system is connected with all high efficiency composition towers, catalyst storage system connects all high efficiency composition towers, high efficiency composition bottom of towe end is all connected with absorbent stocking system and mixed liquor holding vessel, the exhaust outlet connection monitoring aiutage at final stage high efficiency composition tower top end.Oxidant and catalyst are delivered to high efficiency composition tower by the oxidized system of the present invention, catalyst storage system, carry out flue gas desulfurization and denitrification in high efficiency composition tower, being designed to of special high efficiency composition tower internal structure and whole system realizes that flue gas desulfurization and denitrification integral type is administered.
Description
Technical field
The invention belongs to Industrial Boiler flue gas desulfurization and denitrification Treatment process field, and in particular to a kind of high efficiency composition is catalyzed oxygen
Change system for desulfuration and denitration.
Background technology
Industrial Boiler flue gas desulfurization and denitrification Treatment process applicability and advantage and disadvantage present on market are directed to be compared.
1st, adsorption technology has the advantages that instant effect, low cost, high treating effect in a short time, but long-play is needed to dress
Activated carbon, bamboo charcoal in putting are changed, and the activated carbon that changes, bamboo charcoal belong to hazardous waste, it is desirable to have dangerous waste treatment
The unit of qualification is processed, and the processing cost in later stage is higher, increased the operating cost of enterprise；2nd, calcium method desulphurization denitration skill
Art easily produces the carbon dioxide of greenhouse, and can produce the waste water to cause the problem of secondary pollution, while the use of gypsum
It is fewer on the way, land occupation resource, and easily contaminated soil, water resource and air are stacked, operating cost is higher.3rd, ammonia process takes off
Sulphur denitration technology easily produces crystallization inside tower to bring the problem that fouling is shut down, it is necessary to carry out maintenance shut-downs maintenance, and exist for
Harmful components in flue gas are difficult to complete oxidation, cause the byproduct rate of recovery low, while the volatilization of ammoniacal liquor peculiar smell produces VOC's
Problem.4th, magnesium processes desulphurization denitration technology, receives the restriction of magnesium ore resources, and limitation is big, can also produce crystallization inside tower to bring fouling
, it is necessary to carry out maintenance shut-downs maintenance, byproduct reclaims complicated, high cost and solubility is high volatile produces two for the problem of shutdown
Secondary pollution problem.
The content of the invention
The present invention provides a kind of high efficiency composition catalytic oxidation desulfurization denitrating system for solution Problems Existing, oxidized system,
Oxidant and catalyst are delivered to high efficiency composition tower by catalyst storage system, and flue gas desulfurization and denitrification is carried out in high efficiency composition tower,
Being designed to of special high efficiency composition tower internal structure and whole system realizes that flue gas desulfurization and denitrification integral type is administered.
What the present invention was achieved through the following technical solutions：
High efficiency composition catalytic oxidation desulfurization denitrating system, including at least two-stage identical high efficiency composition tower, oxidative system, suction
Agent stocking system, catalyst storage system and monitoring aiutage are received, wherein：At least two-stage high efficiency composition tower each other by
The gas outlet on top is connected with the import of bottom by connecting pipe head and the tail, inside every grade of high efficiency composition tower from top to bottom successively
Purifier, catalytic oxidation room, mixed liquor locker room are provided with, are passed through outside the purifier of every grade of high efficiency composition tower
Circulating pump connection mixed liquor locker room, industry is connected at the import of the one-level high efficiency composition tower bottom of the series connection by admission line
Boiler exhaust mouthful, the oxidative system connects admission line and company by oxidation inlet pipeline corresponding with high efficiency composition tower quantity
Adapter road connects remaining high efficiency composition tower of first high efficiency composition tower and series connection, and the catalyst storage system is by multiple with efficient
Close tower quantity it is corresponding oxidation inlet pipeline connect respectively admission line and connecting pipe so that connect one-level high efficiency composition tower and
Remaining high efficiency composition tower of series connection, many high efficiency composition bottom of towe end is all connected with absorbent stocking system and mixed liquor storage
Tank, the exhaust outlet connection monitoring aiutage at the final stage high efficiency composition tower top end.
Preferably, the purifier includes that the spray system of horizontally set, the many-sided ball below spray system are filled out
The bed of material,.
Preferably, the outside of the high efficiency composition tower is provided with circulating pump, connects the mixed liquor and spray system of tower inner bottom part,
The one direction for making mixed liquor be formed inside and outside tower is circulated.
Preferably, it is the stable organic catalyst containing sulfinyl functional group in the catalyst storage system, uses
Stable organic catalyst containing sulfinyl functional group so that catalytic oxidation efficiency is greatly improved, while controlling sulfurous
The volatilization of hydrochlorate and nitrite, solves the problems, such as absorbent gas escape, improves the efficiency of desulphurization denitration.
Preferably, the oxidant in the oxidative system is ozone and hydroxyl radical free radical strong oxidizer, using ozone and hydroxyl
The strong oxidizers such as base free radical will be insoluble in the nitrogen oxides high oxide into solvable with sulfide-oxidation of water, greatly improve
The efficiency that sulphur removal is denitrogenated.
Preferably, the monitoring aiutage is suitable for reading higher than more than 5 meters of final stage high efficiency composition tower top end, it is possible to use monitoring
The pressure differential of aiutage upper and lower port realizes the extraction of flue gas, energy saving.
Preferably, it is equipped with circulating pump on the connecting pipe.
Preferably, the purifier sets at least 2 layers, can further improve the dedirt and acidic and alkaline gas of spray column
Clean-up effect.
Preferably, at least 2 spray heads are installed on the spray arm of the spray system, spray area can be increased, increase
Plus the contact area with flue gas, improve clean-up effect.
Preferably, the many-sided ball packing layer is the spheroid packing layer being placed on dividing plate, and spheroid packing layer is many-sided ball
Filler material, because packing layer is the spheroid packing layer that is placed on dividing plate, and in the lower section of spray system, spheroid packing layer is
Many-sided ball filler material, may filter that the bulky grain molecule and most harmful substances caught in flue gas, in the presence of spray
Tower bottom is washed into, clearance is further improved.
Preferably, the exhaust outlet at the final stage high efficiency composition tower top end connects monitoring aiutage by air-introduced machine, in monitoring
Add under the Action of Wind pressure of aiutage and use air-introduced machine, gas is flowed in controlling device.
The present invention can make Industrial Boiler flue gas expand the space that holds of flue gas into high efficiency composition tower, reduce pressure, from
And reduce its flow velocity, and laid the foundation to improve subsequent treatment effect, then it is combined with oxidant and organic catalyst, by cigarette
Sulfide and nitride oxide in gas are the sulfide and nitride for being dissolved in water, are dissolved in water and form sulfurous acid and nitrous acid, together
When combined with organic catalyst after, with catalyst in sulfinyl functional group formed stable comple, then with oxidant and suction
Agent reaction is received, ammonium sulfate and ammonium nitrate is ultimately produced.Then the crystallization drying unit outside tower is pumped into by mixed liquor discharge, is obtained
To byproduct of ammonium sulfate chemical fertilizer and ammonium nitrate fertilizer, purified gas is discharged by monitoring aiutage.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, due to organic catalyst sulfinyl functional group in tower, the sulfide in flue gas can be facilitated into steady with nitride
Complex compound is determined, while can also suppress the volatilization of sulphite and nitrite.The treatment effeciency of reaction is increased significantly, while subtracting
The pollution of secondary volatilization is lacked.
2nd, due to the strong oxidizer that oxidative system is produced, ensure that the sulfide in flue gas is into readily soluble with nitride oxide
In the material of water, and can guarantee that complex compound generation ammonium sulfate and the ammonium nitrate of stabilization so that reaction ratio more thoroughly, is substantially increased
Reaction efficiency.
4th, the front end of tower is arranged on due to the import of oxidant and organic catalyst, almost enters tower with the flue gas equal time
It is interior so that the harmful substance energy very first time in flue gas reacts with oxidant and organic catalyst, increased reaction when
Between, improve reaction efficiency.
5th, due to exhaust outlet connection monitoring aiutage, monitoring aiutage it is suitable for reading higher than more than 5 meters of tower top end, it is possible to use
The pressure differential of aiutage upper and lower port is monitored to realize the extraction of flue gas, energy saving；Can not meet gas in monitoring aiutage
During mass rate of emission, it is also possible to add air-introduced machine between steam vent and monitoring aiutage, increase the flow velocity to gas.
6th, because packing layer is the spheroid packing layer that is placed on dividing plate, and in the lower section of spray system, spheroid packing layer
It is many-sided ball filler material, the bulky grain molecule and most harmful substances caught in flue gas is may filter that, in the effect of spray
Under be washed into tower bottom, clearance is further improved.
7th, because the high efficiency composition tower of more than two is by the way of end to end, i.e., the gas after premenstrual coagulation is again
Administered in secondary entrance rear stage tower, improved regulation effect.
8th, simple structure of the present invention, can be greatly improved the regulation effect of Industrial Boiler flue gas, and can widen its application neck
Domain, is easy to popularization and application in industry.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
The structural representation of Fig. 2 high efficiency composition towers；
Wherein：1 is one-level high efficiency composition tower；2 is the first oxidation inlet pipeline；3 is the first catalyst inlet line；4 are
Admission line；5 is Industrial Boiler exhaust outlet；6 is oxidative system；7 is catalyst storage system；8 is absorbent stocking system；9
It is circulating pump；10 is the second oxidation inlet pipeline；11 is the second catalyst inlet line；12 is connecting pipe；13 is two grades high
Effect combination tower, 14 is mixed liquor holding vessel；15 is air-introduced machine；16 is monitoring aiutage；17 is purifier；17-1 is spray system
System；17-2 is many-sided ball packing layer；17-3 is dividing plate；18 is catalytic oxidation room；19 is mixed liquor locker room.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
In the present invention, with reference to the flow direction of flue gas, flue gas is defined as head end into one end of system, will correspondingly go out system
One end be defined as tail end.
A kind of high efficiency composition catalytic oxidation desulfurization denitrating system, including two identical high efficiency composition towers, oxidative system 6,
Absorbent stocking system 8, catalyst storage system 7 and monitoring aiutage 16, wherein：Described two identical high efficiency composition towers are
One-level high efficiency composition tower 1 and two grades of high efficiency composition towers 13, inside the one-level high efficiency composition tower 1 and two grades of high efficiency composition towers 13 by
Top to bottm is followed successively by purifier 17, catalytic oxidation room 18, mixed liquor locker room 19, the He of one-level high efficiency composition tower 1
Mixed liquor locker room 19 is connected by circulating pump 9 outside two grades of purifiers of high efficiency composition tower 13 17, the one-level is efficient
Industrial Boiler exhaust outlet 5 is connected by admission line 4 at the import of the bottom of combination tower 1, the top of the one-level high efficiency composition tower 1
Exit connects two grades of imports of the bottom of high efficiency composition tower 13 by connecting pipe 13, and the oxidative system 6 is by the first oxidation
Inlet pipeline 2 and second oxidation inlet pipeline 10 respectively by connect admission line 4 and connecting pipe 12 so that connect one-level it is high
Effect combination tower 1 and two grades of high efficiency composition towers 13, the catalyst storage system 7 are urged by the first catalysis inlet pipeline 3 and second
Change inlet pipeline 11 respectively by connecting admission line 4 and connecting pipe 12 and then connecting one-level high efficiency composition tower 1 and two grades high
Effect combination tower 13, the one-level high efficiency composition tower 1 and two grades of high efficiency composition towers 13 are all connected with absorbent stocking system 8 and mixed liquor
Holding vessel 14, the exhaust outlet connection monitoring aiutage 16 on two grades of high efficiency composition towers 13 top.
The purifier 17 includes spray system 17-1, the many-sided ball filler below spray system of horizontally set
Layer 17-2.
It is the stable organic catalyst containing sulfinyl functional group in the catalyst storage system 7, using containing Asia
The stable organic catalyst of sulfonyl functional group so that catalytic oxidation efficiency is greatly improved, at the same control sulphite and
The volatilization of nitrite, solves the problems, such as absorbent gas escape, improves the efficiency of desulphurization denitration.
The inside of the oxidative system 6 includes ozone generator, compressor, cooling driers, filter, power supply, switch board, described
Oxidant in oxidative system is ozone and hydroxyl radical free radical strong oxidizer, is incited somebody to action using strong oxidizers such as ozone and hydroxyl radical free radicals
The nitrogen oxides of the water high oxide into solvable with sulfide-oxidation is insoluble in, the efficiency that sulphur removal is denitrogenated is substantially increased.
The purifier 17 is set to 2 layers.
5 spray heads are installed on the spray arm of the spray system 17-1.
The many-sided ball packing layer 17-2 is the spheroid packing layer being placed on dividing plate 17-3, and spheroid packing layer is many-sided ball
Filler material.
Monitoring the suitable for reading of aiutage 16 is higher than two grades of 6 meters of 13 tops of high efficiency composition tower.
Circulating pump is equipped with all pipelines.
The course of work of the invention is as follows：
The flue gas of Industrial Boiler fume emission mouthful discharge enters urging in one-level high efficiency composition tower after being collected through admission line
Oxidation room, simultaneously, oxidant and the organic catalyst of catalyst storage system output that oxidative system is produced
Respectively through the catalytic oxidation room that oxidation inlet pipeline and the first catalyst inlet line enter in one-level high efficiency composition tower,
There is catalytic oxidation in three, formation is dissolved in the stable comple of water herein, and the absorbent that then spray system sprays is by upper
Down into catalytic oxidation room, the stable comple dissolving of water will be dissolved in, be then dissolved into the mixed liquor of tower bottom, remained
The remaining flue gas for having neither part nor lot in catalytic oxidation continues to rise from catalytic oxidation room, by the capture filter of many-sided ball packing layer
After purification, being discharged into two grades of high efficiency composition towers by the outlet at one-level high efficiency composition tower top end carries out reaction of high order, and two grades efficiently
Combination tower is identical with the reaction mechanism of one-level high efficiency composition tower, finally by gas through two grades of outlets at high efficiency composition tower top end by drawing
The outlet of blower fan enters monitoring aiutage, is discharged in air.In addition, the material arrived by many-sided ball packing layer institute capture filter,
Under the souring of spray system, it is transported in the mixed liquor of bottom of towe；Absorbent stocking system disappears according to mixed liquor in tower
Consumption, not timing to conveying absorbent in tower；The harmful substance being retained down is crystallized in mixed liquor, then by compression pump
In the mixed liquor holding vessel being transported to outside tower of not timing, for making byproduct.
The above, is only presently preferred embodiments of the present invention, is not the limitation for making other forms to the present invention, is appointed
What those skilled in the art changed possibly also with the technology contents of the disclosure above or be modified as equivalent variations etc.
Effect embodiment.But it is every without departing from technical solution of the present invention content, according to technical spirit of the invention to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (10)
1. high efficiency composition catalytic oxidation desulfurization denitrating system, including at least two-stage identical high efficiency composition tower, oxidative system, absorption
Agent stocking system, catalyst storage system and monitoring aiutage, wherein：At least two-stage high efficiency composition tower is each other by pushing up
The gas outlet at end is connected with the import of bottom by connecting pipe head and the tail, is set successively from top to bottom inside every grade of high efficiency composition tower
There are purifier, catalytic oxidation room, mixed liquor locker room, the purifier outside of every grade of high efficiency composition tower is by following
Ring pump connection mixed liquor locker room, industrial pot is connected at the import of the one-level high efficiency composition tower bottom of the series connection by admission line
Fire grate gas port, the oxidative system connects admission line and connection by oxidation inlet pipeline corresponding with high efficiency composition tower quantity
Pipeline connect first high efficiency composition tower and series connection remaining high efficiency composition tower, the catalyst storage system by with high efficiency composition
The corresponding oxidation inlet pipeline of tower quantity connects admission line and connecting pipe and then connects one-level high efficiency composition tower and string respectively
Remaining high efficiency composition tower of connection, many high efficiency composition bottom of towe end is all connected with absorbent stocking system and mixed liquor holding vessel,
The exhaust outlet connection monitoring aiutage at the final stage high efficiency composition tower top end.
2. preferred high efficiency composition catalytic oxidation desulfurization denitrating system according to claim 1, it is characterised in that：It is described net
The spray system including horizontally set, the many-sided ball packing layer below spray system are put in makeup.
3. preferred high efficiency composition catalytic oxidation desulfurization denitrating system according to claim 1, it is characterised in that：It is described net
Makeup installs at least 2 layers.
4. preferred high efficiency composition catalytic oxidation desulfurization denitrating system according to claim 1, it is characterised in that：It is described to urge
It is the stable organic catalyst containing sulfinyl functional group in agent stocking system.
5. preferred high efficiency composition catalytic oxidation desulfurization denitrating system according to claim 1, it is characterised in that：The oxygen
Changing internal system includes ozone generator, compressor, cooling driers, filter, power supply, switch board, the oxygen in the oxidative system
Agent is ozone and hydroxyl radical free radical strong oxidizer.
6. preferred high efficiency composition catalytic oxidation desulfurization denitrating system according to claim 1, it is characterised in that：The prison
Survey the suitable for reading of aiutage and be higher than two grades of high efficiency composition tower top ends more than 5 meters.
7. preferred high efficiency composition catalytic oxidation desulfurization denitrating system according to claim 1, it is characterised in that：The institute
Have and circulating pump is equipped with pipeline.
8. preferred high efficiency composition catalytic oxidation desulfurization denitrating system according to claim 1, it is characterised in that：The end
The exhaust outlet at level high efficiency composition tower top end connects monitoring aiutage by air-introduced machine.
9. preferred high efficiency composition catalytic oxidation desulfurization denitrating system according to claim 2, it is characterised in that：The spray
At least 2 spray heads are installed on the spray arm of pouring system.
10. preferred high efficiency composition catalytic oxidation desulfurization denitrating system according to claim 9, it is characterised in that：It is described
Many-sided ball packing layer is the spheroid packing layer being placed on dividing plate, and spheroid packing layer is many-sided ball filler material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710225944.2A CN106861429A (en) | 2017-04-08 | 2017-04-08 | High efficiency composition catalytic oxidation desulfurization denitrating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710225944.2A CN106861429A (en) | 2017-04-08 | 2017-04-08 | High efficiency composition catalytic oxidation desulfurization denitrating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106861429A true CN106861429A (en) | 2017-06-20 |
Family
ID=59160875
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710225944.2A Withdrawn CN106861429A (en) | 2017-04-08 | 2017-04-08 | High efficiency composition catalytic oxidation desulfurization denitrating system |
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| CN (1) | CN106861429A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108114586A (en) * | 2017-12-27 | 2018-06-05 | 武汉都市环保工程技术股份有限公司 | Industrial smoke ozone oxidation, wet absorption desulphurization denitration and the device for eliminating white cigarette |
| CN109837124A (en) * | 2019-04-04 | 2019-06-04 | 嘉兴笼列电子商务有限公司 | A kind of gas sweetening unit |
-
2017
- 2017-04-08 CN CN201710225944.2A patent/CN106861429A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108114586A (en) * | 2017-12-27 | 2018-06-05 | 武汉都市环保工程技术股份有限公司 | Industrial smoke ozone oxidation, wet absorption desulphurization denitration and the device for eliminating white cigarette |
| CN109837124A (en) * | 2019-04-04 | 2019-06-04 | 嘉兴笼列电子商务有限公司 | A kind of gas sweetening unit |
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Application publication date: 20170620 |