JPS5573331A - Treatment of exhaust gas which contains nitrogen oxide - Google Patents
Treatment of exhaust gas which contains nitrogen oxideInfo
- Publication number
- JPS5573331A JPS5573331A JP14656578A JP14656578A JPS5573331A JP S5573331 A JPS5573331 A JP S5573331A JP 14656578 A JP14656578 A JP 14656578A JP 14656578 A JP14656578 A JP 14656578A JP S5573331 A JPS5573331 A JP S5573331A
- Authority
- JP
- Japan
- Prior art keywords
- nitrogen oxides
- catalyst
- exhaust gas
- oxides
- treatment
- 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 reduce and remove the nitrogen oxides in a low temperature range efficiently by a mechanism wherein an exhaust gas which contains the nitrogen oxides is mixed with a reducing agent and thereafter is contacted with a titanium dioxide-platinum group metal catalyst.
CONSTITUTION: As a reducing catalyst of the nitrogen oxides, a catalyst which contains a titanium oxide and a platinum group metal such as platinum, palladium or the like at a concentration of about 0.1W0.5% by weight of the said titanium dioxide is used. An exhaust gas containing nitrogen oxides, especially nitrogen oxides and sulfur oxides, is mixed with a reducing agent such as ammonia or the like and thereafter heated under the presence of this catalyst to about 150W350°C. Thereby, the nitrogen oxides is removed at high efficiency even if in a low temperature range and this catalyst has an excellent durability against sulfur oxides.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14656578A JPS5573331A (en) | 1978-11-29 | 1978-11-29 | Treatment of exhaust gas which contains nitrogen oxide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14656578A JPS5573331A (en) | 1978-11-29 | 1978-11-29 | Treatment of exhaust gas which contains nitrogen oxide |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5573331A true JPS5573331A (en) | 1980-06-03 |
Family
ID=15410542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14656578A Pending JPS5573331A (en) | 1978-11-29 | 1978-11-29 | Treatment of exhaust gas which contains nitrogen oxide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5573331A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53118289A (en) * | 1977-03-25 | 1978-10-16 | Mitsubishi Heavy Ind Ltd | Preparation of catalyst for purification of waste gas |
JPS5482392A (en) * | 1977-12-14 | 1979-06-30 | Mitsui Toatsu Chem Inc | Nitrogen oxides removing catalyst |
-
1978
- 1978-11-29 JP JP14656578A patent/JPS5573331A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53118289A (en) * | 1977-03-25 | 1978-10-16 | Mitsubishi Heavy Ind Ltd | Preparation of catalyst for purification of waste gas |
JPS5482392A (en) * | 1977-12-14 | 1979-06-30 | Mitsui Toatsu Chem Inc | Nitrogen oxides removing catalyst |
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