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
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title abstract 21
- 239000007789 gas Substances 0.000 title abstract 3
- 239000003054 catalyst Substances 0.000 abstract 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 abstract 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 abstract 2
- 229910052815 sulfur oxide Inorganic materials 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- MACBSXIPRLPFDJ-UHFFFAOYSA-N oxygen(2-) platinum(2+) titanium(4+) Chemical group [O-2].[O-2].[Ti+4].[Pt+2] MACBSXIPRLPFDJ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052763 palladium Inorganic materials 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- 239000004408 titanium dioxide Substances 0.000 abstract 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
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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