JPS5469835A - Combustion method with reduced nitrogen oxides - Google Patents
Combustion method with reduced nitrogen oxidesInfo
- Publication number
- JPS5469835A JPS5469835A JP13640977A JP13640977A JPS5469835A JP S5469835 A JPS5469835 A JP S5469835A JP 13640977 A JP13640977 A JP 13640977A JP 13640977 A JP13640977 A JP 13640977A JP S5469835 A JPS5469835 A JP S5469835A
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- volume
- nitrogen oxides
- exhaust gas
- added
- 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
Abstract
PURPOSE: To improve reduction rate of nitrogen oxides by adding small amount of oxygen for its predominate decomposition to nitrogen.
CONSTITUTION: Part of exhaust gas containing residual oxygen is taken off from a flue by a fan 8, oxygen in 0 to 0.3 volume % of the total exhaust gas volume generated from a furnace 1a is added thereto, and is burned with an air supplied through a supply line 7 in a volume sufficient to burn out uncombustioned part of the exhaust gas. When the volume of added oxygen is less then 3%, the reaction NH3, HCN+O2 → N2, H2O becomes predominant and the conversion to NOx usually occur in the combustion of unburned part is prevented thereby substantially improving the removal efficiency of nitrogen oxides.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52136409A JPS5819928B2 (en) | 1977-11-14 | 1977-11-14 | Nitrogen oxide reduction combustion method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52136409A JPS5819928B2 (en) | 1977-11-14 | 1977-11-14 | Nitrogen oxide reduction combustion method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5469835A true JPS5469835A (en) | 1979-06-05 |
JPS5819928B2 JPS5819928B2 (en) | 1983-04-20 |
Family
ID=15174477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52136409A Expired JPS5819928B2 (en) | 1977-11-14 | 1977-11-14 | Nitrogen oxide reduction combustion method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5819928B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56130513A (en) * | 1980-03-19 | 1981-10-13 | Mitsubishi Heavy Ind Ltd | Combustion with low nox |
JPS5787505A (en) * | 1980-11-21 | 1982-06-01 | Mitsubishi Heavy Ind Ltd | Combustion process with reduction of nitrogen oxides |
JPS5833019A (en) * | 1981-08-21 | 1983-02-26 | Mitsubishi Heavy Ind Ltd | Method of reducing nitrogen oxides in combustion exhaust gas |
JPS59157406A (en) * | 1983-02-25 | 1984-09-06 | Hitachi Zosen Corp | Process for preventing generation of nox in triple-stage combustion |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5413015A (en) * | 1977-06-30 | 1979-01-31 | Showa Denko Kk | Process for decreasing nox |
-
1977
- 1977-11-14 JP JP52136409A patent/JPS5819928B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5413015A (en) * | 1977-06-30 | 1979-01-31 | Showa Denko Kk | Process for decreasing nox |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56130513A (en) * | 1980-03-19 | 1981-10-13 | Mitsubishi Heavy Ind Ltd | Combustion with low nox |
JPS5787505A (en) * | 1980-11-21 | 1982-06-01 | Mitsubishi Heavy Ind Ltd | Combustion process with reduction of nitrogen oxides |
JPS5833019A (en) * | 1981-08-21 | 1983-02-26 | Mitsubishi Heavy Ind Ltd | Method of reducing nitrogen oxides in combustion exhaust gas |
JPH0130044B2 (en) * | 1981-08-21 | 1989-06-15 | Mitsubishi Heavy Ind Ltd | |
JPS59157406A (en) * | 1983-02-25 | 1984-09-06 | Hitachi Zosen Corp | Process for preventing generation of nox in triple-stage combustion |
Also Published As
Publication number | Publication date |
---|---|
JPS5819928B2 (en) | 1983-04-20 |
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