JPS54142175A - Reducing effluent ammonia in ammonia contact reduction denitriation - Google Patents
Reducing effluent ammonia in ammonia contact reduction denitriationInfo
- Publication number
- JPS54142175A JPS54142175A JP4992678A JP4992678A JPS54142175A JP S54142175 A JPS54142175 A JP S54142175A JP 4992678 A JP4992678 A JP 4992678A JP 4992678 A JP4992678 A JP 4992678A JP S54142175 A JPS54142175 A JP S54142175A
- Authority
- JP
- Japan
- Prior art keywords
- ammonia
- denitriation
- decomposed
- excess
- waste gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
PURPOSE: Waste gas is added with NH3 and aqueous H2O2 solution, then passed through catalytic layer to reduce NOx into N2 and H2O, whereby excess NH3 is oxidized and decomposed without reducing denitrization efficiency.
CONSTITUTION: NOx containing waste gas is added with NH3 and further with aqueous H2O2 solution in amount of greater than 0.5 molar ratio to effluent NH3, then cantacted with metal oxide based catalyst at temperature of below 450°C. In the process, NOx in the waste gas is decomposed and reduced N2 and H2O, and excess NH3 is decomposed to be harmless. NH3 is usually used 1.0 to 1.5 times of NOx. As metal oxide catalyst, substantially all oxides of metals such as Fe, Co, Ni, Ti, V, W can be used, simultaneously effecting dinitrization and decomposition of excess NH3.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53049926A JPS589692B2 (en) | 1978-04-28 | 1978-04-28 | Method for reducing effluent ammonia in ammonia catalytic reduction denitrification |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53049926A JPS589692B2 (en) | 1978-04-28 | 1978-04-28 | Method for reducing effluent ammonia in ammonia catalytic reduction denitrification |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54142175A true JPS54142175A (en) | 1979-11-06 |
JPS589692B2 JPS589692B2 (en) | 1983-02-22 |
Family
ID=12844612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53049926A Expired JPS589692B2 (en) | 1978-04-28 | 1978-04-28 | Method for reducing effluent ammonia in ammonia catalytic reduction denitrification |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS589692B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5724562U (en) * | 1980-07-17 | 1982-02-08 | ||
JPS59213426A (en) * | 1983-05-18 | 1984-12-03 | Nippon Mining Co Ltd | Treatment of waste gas |
-
1978
- 1978-04-28 JP JP53049926A patent/JPS589692B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5724562U (en) * | 1980-07-17 | 1982-02-08 | ||
JPS6216687Y2 (en) * | 1980-07-17 | 1987-04-27 | ||
JPS59213426A (en) * | 1983-05-18 | 1984-12-03 | Nippon Mining Co Ltd | Treatment of waste gas |
Also Published As
Publication number | Publication date |
---|---|
JPS589692B2 (en) | 1983-02-22 |
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