JPS55167028A - Treatment of waste gas containing nitrogen oxide - Google Patents
Treatment of waste gas containing nitrogen oxideInfo
- Publication number
- JPS55167028A JPS55167028A JP7470679A JP7470679A JPS55167028A JP S55167028 A JPS55167028 A JP S55167028A JP 7470679 A JP7470679 A JP 7470679A JP 7470679 A JP7470679 A JP 7470679A JP S55167028 A JPS55167028 A JP S55167028A
- Authority
- JP
- Japan
- Prior art keywords
- waste gas
- ammonia
- nitrogen oxides
- manganese oxide
- gas containing
- 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.)
- Pending
Links
Abstract
PURPOSE: To make nitrogen oxides harmless by effective reduction for a long period of time without causing any secondary pollution by adding a specific ratio of ammonia to nitrogen oxides present in a waste gas in the presence of a manganese oxide-silica-alumina catalyst with a specific composition.
CONSTITUTION: In the denitrification of a waste gas containing nitrogen oxides by an ammonia reduction method, 0.5W2mol ammonia is added to the waste gas on the basis of 1mol nitrogen oxide and then the waste gas is brought into contact with a manganese oxide-silica-alumina catalyst of an SiO2/(SiO2+Al2O)3 ratio of 0.95W0.5, containing 5W30wt% manganese oxide, at 500W700°C. Thus, the nitrogen oxides present in the waste gas can be removed effectively for a long period of time without causing any secondary pollution because of the proper amount of ammonia to be added.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7470679A JPS55167028A (en) | 1979-06-15 | 1979-06-15 | Treatment of waste gas containing nitrogen oxide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7470679A JPS55167028A (en) | 1979-06-15 | 1979-06-15 | Treatment of waste gas containing nitrogen oxide |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55167028A true JPS55167028A (en) | 1980-12-26 |
Family
ID=13554932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7470679A Pending JPS55167028A (en) | 1979-06-15 | 1979-06-15 | Treatment of waste gas containing nitrogen oxide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55167028A (en) |
-
1979
- 1979-06-15 JP JP7470679A patent/JPS55167028A/en active Pending
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