CN103157357A - Novel desulfurization-denitrification integrated device - Google Patents
Novel desulfurization-denitrification integrated device Download PDFInfo
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- CN103157357A CN103157357A CN2011104072861A CN201110407286A CN103157357A CN 103157357 A CN103157357 A CN 103157357A CN 2011104072861 A CN2011104072861 A CN 2011104072861A CN 201110407286 A CN201110407286 A CN 201110407286A CN 103157357 A CN103157357 A CN 103157357A
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- flue gas
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- desulfurization
- folliculus
- denitration
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Abstract
The invention relates to a desulfurization-denitrification device for flue gas, and particularly relates to a desulfurization-denitrification integrated device using attapulgite as a denitrification catalyst support, and used for filter-bubble-absorbing type wet desulphurization. The device comprises a flue gas inlet, an ammonia-wind mixed spray gun, a uniform distribution flow divider, a catalyst module, a denitrification chamber, a flue gas outlet, a filter-bubble generator, a demister, a filter-bubble desulfurization chamber, a humidifying nozzle I, a humidifying nozzle II, a tower body, and the like. Flue gas enters in the tower body, and nitric oxides in the flue gas perform a catalytic reduction reaction under the action of a catalyst, so as to be reduced into nitrogen; and the denitrified flue gas enters in the filter-bubble desulfurization chamber from the denitrification chamber, sulfur dioxide in the flue gas is contacted with a desulfurizing agent in the filter bubbles generated by the filter-bubble generator and performs an acid-base neutralization reaction, so as to be desulfurized, and the flue gas obtained after water vapour in the flue gas is separated by the demister enters in a chimney via the flue gas, so as to be discharged, thus realizing desulfurization and denitrification on flue gas in the same device. The device can be widely used for desulfurization and denitrification for flue gas.
Description
Technical field
The present invention relates to a kind of device of flue gas desulfurization and denitrification, relate in particular to and utilize attapulgite as the denitration integrated device of denitration catalyst carrier and the absorption wet desulphurization of folliculus.
Background technology
Contain sulfur dioxide and nitrogen oxide in the flue gas of boiler (stove) discharging, cause the problems such as very serious atmosphere pollution and acid rain, cause huge economic loss, therefore control the discharging of sulfur dioxide in flue gas and nitrogen oxide, existing flue gas desulfurization and denitration method has a variety of, and desulfur technology comprises dry method, semidry method and wet method.Because wet processing is ripe, efficient is high, existing desulfur technology is mainly take wet method as main.Wet method has lime-gypsum method, seawater method, ammonia process, two alkaline process etc. multiple by the difference of liquid absorption element, no matter composition how, the working morphology of wet absorption liquid is one or more in membranaceous, droplet-like, bubbling shape and folliculus shape nothing more than, specific area membranaceous, that the liquid of droplet-like absorption liquid unit volume forms is little, the specific area that the liquid of bubbling shape absorption liquid unit volume forms is larger, but surface tension is poor, very easily breaks.Gas denitrifying technology mainly contains SNCR method (SNCR), selective catalytic reduction (SCR), activated carbon combined desulfurization and denitrification method etc., wherein, SCR technology denitration efficiency is high, uses wider, but catalyst is expensive, and operating cost is high.The combined desulfurization and denitration technology of Application and Development is also flue gas desulfurization technique and gas denitrifying technology group technology, and the wasting of resources, one-time investment is large, operating cost is high, each independent particle system is difficult to the problems such as coordination.
China's attapulgite aboundresources, have the advantages such as unique pore structure and very high chemical stability, hydrophobicity, supported catalyst ability, utilize attapulgite to replace vanadium oxide as the carrier of denitrating catalyst, reduce denitrating flue gas one-time investment and operating cost.
Summary of the invention
The integrated apparatus that the object of the present invention is to provide a kind of low cost, sulfur dioxide in flue gas and nitrogen oxide to remove together with tower.This device removes sulfur dioxide in flue gas and nitrogen oxide together with tower, overcomes the defective of traditional flue gas desulfurization technique and denitrating technique simple combination; Utilize attapulgite as denitration catalyst carrier, with vanadium oxide and tungsten oxide as catalyst, be prepared into denitrification catalyst module, reduce denitrating flue gas one-time investment and operating cost, flue gas through after denitrification catalyst module and denitrification reducing agent ammonia react again with folliculus in desulfurizing agent fully contact, remove the sulfur dioxide in flue gas.
Technical solution of the present invention is: this device comprises gas approach, ammonia wind mixture spray gun, uniform current divider, catalyst module, denitration chamber, exhanst gas outlet, follicle generator, demister, folliculus desulfurization chamber, humidifying nozzle I, humidifying nozzle II, tower body etc.Flue gas enters in tower body by gas approach, ammonia wind mixture spray gun spirt ammonia, and flue gas is fully contacted with catalyst module by uniform current divider Uniform Dispersion with ammonia, and catalytic reduction reaction occurs, and nitrogen oxide is reduced into nitrogen.flue gas after denitration enters the folliculus desulfurization chamber by the denitration chamber, through the humidifying nozzle humidification, flue-gas temperature is adjusted to 70-80 degree centigrade, the power air enters follicle generator, produce a large amount of thin and fine and close folliculus in the folliculus desulfurization chamber, thereby the sulfur dioxide in flue gas and desulfurizing agent in folliculi liquor fully contact and the acid-base neutralization reaction occurs remove sulfur dioxide in flue gas, isolate steam in flue gas finally by crossing demister, flue gas after purification enters smoke stack emission by exhanst gas outlet, thereby realized in same device, flue gas being carried out desulfurization, the function of denitration.
Description of drawings
In Fig. 1: 1, gas approach, 2, ammonia wind mixture spray gun, 3, uniform current divider, 4, catalyst module, 5, denitration chamber, 6, exhanst gas outlet, 7, follicle generator, 8, demister, 9, folliculus desulfurization chamber, 10, the secondary humidifying nozzle, 11, one-level humidifying nozzle II, 12, tower body.
The specific embodiment
Referring to accompanying drawing 1, the present invention includes: gas approach 1, ammonia wind mixture spray gun 2, uniform current divider 3, catalyst module 4, denitration chamber 5, exhanst gas outlet 6, follicle generator 7, demister 8, folliculus desulfurization chamber 9, secondary humidifying nozzle 10, one-level humidifying nozzle 11, tower body 12.
Flue gas enters in tower body 12 by gas approach 1, mix with the ammonia of ammonia wind mixture spray gun 2 spirts, be dispersed in denitration chamber 5 by uniform current divider 3, fully contact with catalyst module 4, catalyst module is as denitration catalyst carrier with attapulgite, the metal oxide such as vanadium oxide and tungsten oxide is as catalyst, the nitrogen oxide in flue gas under catalyst action with ammonia generation catalytic reduction reaction, nitrogen oxide is reduced into nitrogen.flue gas after denitration enters folliculus desulfurization chamber 9 by denitration chamber 5, flue gas is by the water smoke adverse current humidification of the water smoke following current humidification of one-level humidifying nozzle 11 ejections and 10 ejections of secondary humidifying nozzle, flue-gas temperature is adjusted to 70-80 degree centigrade, the power air enters the follicle generator 7 in folliculus desulfurization chamber 9 bottom desulphurization circulating liquid, produce a large amount of thin and fine and close folliculus in the folliculus desulfurization chamber, thereby the sulfurous Anhydride in flue gas and desulfurizing agent in folliculi liquor fully contact and the acid-base neutralization reaction occurs remove sulfur dioxide in flue gas, isolate steam in flue gas finally by crossing demister 8, flue gas after purification enters smoke stack emission by exhanst gas outlet 6, realized in same device, flue gas being carried out desulfurization, the function of denitration.
Claims (5)
1. Novel desulphurization denitrification integrated device is characterized in that: be divided into denitration chamber and folliculus desulfurization chamber in this integrated apparatus tower body, denitration is indoor ammonia wind mixture spray gun, uniform current divider, catalyst module; The folliculus desulfurization chamber has humidifying device, follicle generator and demister.Flue gas enters in tower body, and ammonia wind mixture spray gun spirt ammonia, flue gas are contacted with catalyst module by uniform current divider Uniform Dispersion with ammonia catalytic reduction reaction occurs, and nitrogen oxide is reduced into nitrogen.Then flue gas is through the humidifying nozzle humidification, contact with a large amount of thin and fine and close folliculus of follicle generator generation in the folliculus desulfurization chamber again, thereby the reaction of the desulfurizing agent generation acid-base neutralization in the sulfur dioxide in flue gas and folliculi liquor removes the sulfur dioxide in flue gas, demister is isolated the steam in flue gas, flue gas after purification enters smoke stack emission by exhanst gas outlet, thereby realizes in same device, flue gas being carried out the function of desulphurization and denitration.
2. tower body according to claim 1 is characterized in that:
(1) gas approach is contained on tower body top;
(2) denitration chamber and folliculus desulfurization chamber are contained in tower body inside;
(3) exhanst gas outlet is contained at the tower body middle part.
3. denitration according to claim 1 chamber is characterized in that:
(1) ammonia wind mixture spray gun is contained in the denitration chamber;
(2) uniform current divider is contained in the denitration chamber;
(3) catalyst module is contained in the denitration chamber.
4. folliculus desulfurization chamber according to claim 1 is characterized in that:
(1) the folliculus desulfurization chamber contains humidifying device;
(2) the folliculus desulfurization chamber contains follicle generator;
(3) the folliculus desulfurization chamber contains demister.
5. catalyst module according to claim 3 is characterized in that:
(1) catalyst module is as denitration catalyst carrier with attapulgite;
(2) metal oxide such as vanadium oxide and tungsten oxide is as catalyst.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104072861A CN103157357A (en) | 2011-12-08 | 2011-12-08 | Novel desulfurization-denitrification integrated device |
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| CN2011104072861A CN103157357A (en) | 2011-12-08 | 2011-12-08 | Novel desulfurization-denitrification integrated device |
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| CN103157357A true CN103157357A (en) | 2013-06-19 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103446839A (en) * | 2013-09-18 | 2013-12-18 | 王利国 | Wet desulphurization system with multi-stage humidification demisting device |
| CN106994292A (en) * | 2017-05-10 | 2017-08-01 | 安阳市双环助剂有限责任公司 | A kind of desulfurizing agent and its application, and using the desulphurization system of the desulfurizing agent |
| CN107138045A (en) * | 2017-06-12 | 2017-09-08 | 青岛双瑞海洋环境工程股份有限公司 | Marine exhaust processing unit for removing sulfur and nitrogen oxides simultaneously |
| CN107854988A (en) * | 2017-12-16 | 2018-03-30 | 常熟联邦化工股份有限公司 | A kind of coal burning heat-conducting oil furnace exhaust gas automatic processing device |
| CN108159882A (en) * | 2018-03-06 | 2018-06-15 | 车继鲁 | A kind of industrial waste gas processing system and processing method |
Citations (4)
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| JPH09141048A (en) * | 1995-11-27 | 1997-06-03 | Babcock Hitachi Kk | Wet flue gas desulfurizing method and device therefor |
| CN101444696A (en) * | 2008-04-23 | 2009-06-03 | 朱复东 | Method for desulfurizing and denitrating smoke by circulating fluidized filter bubble |
| CN201744293U (en) * | 2010-06-25 | 2011-02-16 | 北京紫光威肯环保工程技术有限公司 | Boiler flue gas desulfurizing device in tower using ammonia crystallization method |
| WO2011142405A1 (en) * | 2010-05-13 | 2011-11-17 | 戸田工業株式会社 | Wet-type flue-gas desulfurization device using three-way spray nozzle |
-
2011
- 2011-12-08 CN CN2011104072861A patent/CN103157357A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09141048A (en) * | 1995-11-27 | 1997-06-03 | Babcock Hitachi Kk | Wet flue gas desulfurizing method and device therefor |
| CN101444696A (en) * | 2008-04-23 | 2009-06-03 | 朱复东 | Method for desulfurizing and denitrating smoke by circulating fluidized filter bubble |
| WO2011142405A1 (en) * | 2010-05-13 | 2011-11-17 | 戸田工業株式会社 | Wet-type flue-gas desulfurization device using three-way spray nozzle |
| CN201744293U (en) * | 2010-06-25 | 2011-02-16 | 北京紫光威肯环保工程技术有限公司 | Boiler flue gas desulfurizing device in tower using ammonia crystallization method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103446839A (en) * | 2013-09-18 | 2013-12-18 | 王利国 | Wet desulphurization system with multi-stage humidification demisting device |
| CN103446839B (en) * | 2013-09-18 | 2015-05-20 | 王利国 | Wet desulphurization system with multi-stage humidification demisting device |
| CN106994292A (en) * | 2017-05-10 | 2017-08-01 | 安阳市双环助剂有限责任公司 | A kind of desulfurizing agent and its application, and using the desulphurization system of the desulfurizing agent |
| CN107138045A (en) * | 2017-06-12 | 2017-09-08 | 青岛双瑞海洋环境工程股份有限公司 | Marine exhaust processing unit for removing sulfur and nitrogen oxides simultaneously |
| CN107854988A (en) * | 2017-12-16 | 2018-03-30 | 常熟联邦化工股份有限公司 | A kind of coal burning heat-conducting oil furnace exhaust gas automatic processing device |
| CN108159882A (en) * | 2018-03-06 | 2018-06-15 | 车继鲁 | A kind of industrial waste gas processing system and processing method |
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Application publication date: 20130619 |