JPS5462969A - Reduction purifying method for nitrogen oxides in exhaust gas - Google Patents
Reduction purifying method for nitrogen oxides in exhaust gasInfo
- Publication number
- JPS5462969A JPS5462969A JP12937277A JP12937277A JPS5462969A JP S5462969 A JPS5462969 A JP S5462969A JP 12937277 A JP12937277 A JP 12937277A JP 12937277 A JP12937277 A JP 12937277A JP S5462969 A JPS5462969 A JP S5462969A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- gas
- carbon
- exhaust gas
- vessel
- 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
Landscapes
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
PURPOSE: To reduce NOx in exhaust gas to harmless N2 with a cheap carbon source in the absence of catalyst by placing the source in an exhaust system and reducing the NOx with the carbon of the source.
CONSTITUTION: An internal combustion engine sucks a mixed gas of fuel and air into combustion chamber 5 demarcated by engine casing 3 and piston 4 from suction boat 2 which is opened or closed by suction valve 1, and it exhasuts exhaust gas toward exhaust duct 8 from exhaust boat 7 which is opened or closed by exhaust valve 6. Vessel 10 housing a great deal of granular solid carbon 9 is set to duct 8 so that it crosses the exhaust gas current flowing through duct 8. When the exhaust gas exhausted from boat 7 into duct 8 is passed through vessel 10, carbon 9 is heated to heat NOx in the gas, whereby the NOx are reduced to harmless N2 by the reducing action of a reaction product of carbon 9 and O2, i.e. CO. Unburned CO, hydrocarbon, etc. in the gas passed through vessel 10 are then oxidized in reactor 11 provided to the downstream side of vessel 10 to purify the gas.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12937277A JPS5462969A (en) | 1977-10-28 | 1977-10-28 | Reduction purifying method for nitrogen oxides in exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12937277A JPS5462969A (en) | 1977-10-28 | 1977-10-28 | Reduction purifying method for nitrogen oxides in exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5462969A true JPS5462969A (en) | 1979-05-21 |
Family
ID=15007944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12937277A Pending JPS5462969A (en) | 1977-10-28 | 1977-10-28 | Reduction purifying method for nitrogen oxides in exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5462969A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112426877A (en) * | 2020-09-24 | 2021-03-02 | 宣城市楷昂化工有限公司 | Method and equipment for treating nitrogen oxide waste gas in sodium metabisulfite production |
-
1977
- 1977-10-28 JP JP12937277A patent/JPS5462969A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112426877A (en) * | 2020-09-24 | 2021-03-02 | 宣城市楷昂化工有限公司 | Method and equipment for treating nitrogen oxide waste gas in sodium metabisulfite production |
| CN112426877B (en) * | 2020-09-24 | 2022-07-19 | 宣城市楷昂化工有限公司 | Method and equipment for treating nitrogen oxide waste gas in sodium metabisulfite production |
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