CN107537299A - A kind of method that Peracetic acid and ozone aoxidize denitrating flue gas jointly - Google Patents
A kind of method that Peracetic acid and ozone aoxidize denitrating flue gas jointly Download PDFInfo
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- CN107537299A CN107537299A CN201710977680.6A CN201710977680A CN107537299A CN 107537299 A CN107537299 A CN 107537299A CN 201710977680 A CN201710977680 A CN 201710977680A CN 107537299 A CN107537299 A CN 107537299A
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- peracetic acid
- ozone
- flue gas
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Abstract
The invention discloses a kind of method that Peracetic acid and ozone aoxidize denitrating flue gas jointly, it is characterised in that：Comprise the following steps：（1）Flue gas is passed through to reactor and the Peracetic acid after atomization process is reacted；Peracetic acid and NOXMol ratio be 0.6：1‑2:1；Reaction temperature is 25 DEG C 80 DEG C, and the reaction time is 1 2S；（2）To step（1）Gas phase ozone is passed through in reacted reactor to be reacted；Ozone and NOXMol ratio be 0.6：1‑1.8:1；Reaction temperature is 25 DEG C 85 DEG C, and the reaction time is 1 3S；（3）Reacted gas absorbs through water.The present invention aoxidizes denitrating flue gas jointly using ozone and Peracetic acid, and not only reaction is simple efficient, and denitration rate is high, and course of reaction is few, and reaction product is environmentally friendly.
Description
Technical field
The present invention relates to a kind of method that Peracetic acid and ozone aoxidize denitrating flue gas jointly, belong to environment protection method field.
Background technology
Denitration, the process of denitrification, antipollution importance, as world wide are gone in combustion product gases
The problem of and be shrilly contemplated.NOXPhotochemical reaction can be caused in the presence of sunlight, form photochemical fog, from
And cause serious atmosphere pollution.Gas denitrifying technology mainly has dry method（Selective catalytic reduction flue gas denitration, selectivity non-are urged
Change reducing process denitration）With two kinds of wet method.It is applied in the method for actual denitrating flue gas and exists at present：Floor space is big；Equipment
It is costly；Energy resource consumption is big；Denitration rate is low；In place of the deficiencies of secondary pollution can be produced.
The content of the invention
The purpose of the present invention is intended to make up the deficiency of existing denitration technology, there is provided a kind of Peracetic acid and the common oxygen of ozone
Change the method for denitrating flue gas, this method can realize simple efficient denitration, and this method uses ozone and the common oxygen of Peracetic acid
Change denitrating flue gas, not only reaction is simple efficient, and denitration rate is high, and course of reaction is few, and reaction product is environmentally friendly.
The purpose of the present invention and solves its technical problem underlying using following technical scheme to realize：A kind of peroxide second
The method that acid and ozone aoxidize denitrating flue gas jointly, comprises the following steps：
（1）Flue gas is passed through to reactor and the Peracetic acid after atomization process is reacted；Peracetic acid and NOXMole
Than for 0.6：1-2:1；Reaction temperature is 25 DEG C -80 DEG C, reaction time 1-2S；
（2）To step（1）Gas phase ozone is passed through in reacted reactor to be reacted；Ozone and NOXMol ratio be 0.6：
1-1.8:1；Reaction temperature is 25 DEG C -85 DEG C, reaction time 1-3S；
（3）Reacted gas absorbs through water.
The step（1）In, the mass fraction of Peracetic acid is 20%-40%.
The present invention has clear advantage and beneficial effect compared with prior art.From above technical scheme, this hair
In bright, the oxidability of ozone is extremely strong, and the reaction product of ozone is oxygen, so it is a kind of strong oxidizer of high-efficiency cleaning,
Peracetic acid obtains more economical simple.The present invention aoxidizes denitrating flue gas jointly using ozone and Peracetic acid, and not only reaction is simple
Efficiently, and denitration rate is high, and course of reaction is few, and reaction product is environmentally friendly.
Embodiment
Below in conjunction with preferred embodiment, taken off to aoxidizing flue gas jointly according to a kind of Peracetic acid proposed by the present invention and ozone
Method embodiment, feature and its effect of nitre, describe in detail as after.
A kind of method that Peracetic acid and ozone aoxidize denitrating flue gas jointly, comprises the following steps：
（1）Flue gas is passed through to reactor and the Peracetic acid after atomization process is reacted；Peracetic acid and NOXMole
Than for 0.6：1-2:1；Reaction temperature is 25 DEG C -80 DEG C, reaction time 1-2S；
（2）To step（1）Gas phase ozone is passed through in reacted reactor to be reacted；Ozone and NOXMol ratio be 0.6：
1-1.8:1；Reaction temperature is 25 DEG C -85 DEG C, reaction time 1-3S；
（3）Reacted gas absorbs through water.
The step（1）In, the mass fraction of Peracetic acid is 20%-40%.
Embodiment 1：Flue gas and the Peracetic acid reaction after atomization process are passed first into, wherein：Take the anti-of reactor
It is 25 DEG C to answer temperature；Peracetic acid and NOXMol ratio be 0.6：1；Reaction time is 2S；The mass fraction of Peracetic acid is
20% is passed through flue gas and the Peracetic acid reaction after atomization process, then proceedes to be passed through gas phase ozone and is reacted, wherein：
It is 25 DEG C to take with the reaction temperature of gas phase ozone；Ozone and NOXMol ratio be 1:1；Reaction time is 2S, after the completion of reaction by
Water absorbs.Using this method, denitration rate is measured as 96%.
Embodiment 2：Flue gas and the Peracetic acid reaction after atomization process are first passed through, wherein：Take the reaction of reactor
Temperature is 45 DEG C；Peracetic acid and NOXMol ratio be 2：1；Reaction time is 1S；The mass fraction of Peracetic acid is 30% logical
Enter flue gas and the Peracetic acid reaction after atomization process, then proceed to be passed through gas phase ozone and reacted, wherein：Take and gas
The reaction temperature of phase ozone is 45 DEG C；Ozone and NOXMol ratio be 1:1；Reaction time is 1S, is inhaled after the completion of reaction by water
Receive.Using this method, denitration rate is measured as 98%.
Embodiment 3：Flue gas and the Peracetic acid reaction after atomization process are first passed through, wherein：Take the reaction of reactor
Temperature is 65 DEG C；Peracetic acid and NOXMol ratio be 1.6：1；Reaction time is 1S；The mass fraction of Peracetic acid is 40%
Flue gas and the Peracetic acid reaction after atomization process are passed through, then proceedes to be passed through gas phase ozone and is reacted, wherein：Take with
The reaction temperature of gas phase ozone is 65 DEG C；Ozone and NOXMol ratio be 0.6:1；Reaction time is 1S, by water after the completion of reaction
Absorb.Using this method, denitration rate is measured as 99%.
The above described is only a preferred embodiment of the present invention, not making any formal limitation to the present invention, appoint
Without departing from technical solution of the present invention content, what the technical spirit according to the present invention was made to above example any simply repaiies for what
Change, equivalent variations and modification, in the range of still falling within technical solution of the present invention.
Claims (2)
1. a kind of method that Peracetic acid and ozone aoxidize denitrating flue gas jointly, it is characterised in that：Comprise the following steps：
（1）Flue gas is passed through to reactor and the Peracetic acid after atomization process is reacted；Peracetic acid and NOXMole
Than for 0.6：1-2:1；Reaction temperature is 25 DEG C -80 DEG C, reaction time 1-2S；
（2）To step（1）Gas phase ozone is passed through in reacted reactor to be reacted；Ozone and NOXMol ratio be 0.6：1-
1.8:1；Reaction temperature is 25 DEG C -85 DEG C, reaction time 1-3S；
（3）Reacted gas absorbs through water.
2. the method that a kind of Peracetic acid according to claim 1 and ozone aoxidize denitrating flue gas jointly, it is characterised in that：
The step（1）In, the mass fraction of Peracetic acid is 20%-40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710977680.6A CN107537299A (en) | 2017-10-19 | 2017-10-19 | A kind of method that Peracetic acid and ozone aoxidize denitrating flue gas jointly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710977680.6A CN107537299A (en) | 2017-10-19 | 2017-10-19 | A kind of method that Peracetic acid and ozone aoxidize denitrating flue gas jointly |
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| CN107537299A true CN107537299A (en) | 2018-01-05 |
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| CN201710977680.6A Pending CN107537299A (en) | 2017-10-19 | 2017-10-19 | A kind of method that Peracetic acid and ozone aoxidize denitrating flue gas jointly |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0274823A1 (en) * | 1986-11-14 | 1988-07-20 | Southern Water Services Limited | Improvements in methods and compositions for gas deodorisation |
| US5639434A (en) * | 1994-09-19 | 1997-06-17 | Tampella Power Oy | Process for removing nitrogen oxides from the flue gases of a pulp mill |
| CN103638809A (en) * | 2013-12-13 | 2014-03-19 | 江苏大学 | Method and system for removing mercury from optical flue with air cooling device |
| US20160023927A1 (en) * | 2014-07-23 | 2016-01-28 | Ecolab Usa Inc. | Hydrogen sulfide abatement in geothermal facilities |
| CN105771600A (en) * | 2016-04-12 | 2016-07-20 | 刘杨先 | Method and device for integrally removing multiple pollutants in tail gas through plant ash seriflux |
| CN106390711A (en) * | 2016-06-21 | 2017-02-15 | 秦皇岛玻璃工业研究设计院 | A denitration oxidant for glass melting furnace flue gas, a denitration device and a denitration method |
-
2017
- 2017-10-19 CN CN201710977680.6A patent/CN107537299A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0274823A1 (en) * | 1986-11-14 | 1988-07-20 | Southern Water Services Limited | Improvements in methods and compositions for gas deodorisation |
| US5639434A (en) * | 1994-09-19 | 1997-06-17 | Tampella Power Oy | Process for removing nitrogen oxides from the flue gases of a pulp mill |
| CN103638809A (en) * | 2013-12-13 | 2014-03-19 | 江苏大学 | Method and system for removing mercury from optical flue with air cooling device |
| US20160023927A1 (en) * | 2014-07-23 | 2016-01-28 | Ecolab Usa Inc. | Hydrogen sulfide abatement in geothermal facilities |
| CN105771600A (en) * | 2016-04-12 | 2016-07-20 | 刘杨先 | Method and device for integrally removing multiple pollutants in tail gas through plant ash seriflux |
| CN106390711A (en) * | 2016-06-21 | 2017-02-15 | 秦皇岛玻璃工业研究设计院 | A denitration oxidant for glass melting furnace flue gas, a denitration device and a denitration method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180105 |
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| RJ01 | Rejection of invention patent application after publication |