JPS5484866A - Nh3 injection method - Google Patents
Nh3 injection methodInfo
- Publication number
- JPS5484866A JPS5484866A JP15254977A JP15254977A JPS5484866A JP S5484866 A JPS5484866 A JP S5484866A JP 15254977 A JP15254977 A JP 15254977A JP 15254977 A JP15254977 A JP 15254977A JP S5484866 A JPS5484866 A JP S5484866A
- Authority
- JP
- Japan
- Prior art keywords
- liquid nozzle
- exhaust gas
- temperature
- decomposition
- nozzle
- 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
- Chimneys And Flues (AREA)
- Treating Waste Gases (AREA)
Abstract
PURPOSE: To prevent decrease in denitration effect and corrosion of nozzles due to the decomposition of NH3 by maintaining the nozzle at a constant temperature with a cooling fluid introduced around a liquid nozzle for injecting NH3 into an exhaust gas passage.
CONSTITUTION: NH3 is injected into an exhaust gas passage maintaining the liquid nozzle at a temperature of 110 to 500°C with a cooling fluid introduced around at least a part of the liquid nozzle. Or a part of fluid flowing through the boiler system is introduced likewise to maintain the liquid nozzle at a temperature of 110 to 500°C. This prevents deterioration in the denitration effect due to decomposition of HN3 above 500°C. As a result, NH3 is combined with SO3 in the exhaust gas below 110°C to form H2SO4, thereby checking corrosion of the liquid nozzle.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15254977A JPS5484866A (en) | 1977-12-19 | 1977-12-19 | Nh3 injection method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15254977A JPS5484866A (en) | 1977-12-19 | 1977-12-19 | Nh3 injection method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5484866A true JPS5484866A (en) | 1979-07-06 |
Family
ID=15542883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15254977A Pending JPS5484866A (en) | 1977-12-19 | 1977-12-19 | Nh3 injection method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5484866A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5330473A (en) * | 1976-09-02 | 1978-03-22 | Babcock Hitachi Kk | Circulating and controlling method for cooling water used for nox-reducing agent injecting apparatus |
-
1977
- 1977-12-19 JP JP15254977A patent/JPS5484866A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5330473A (en) * | 1976-09-02 | 1978-03-22 | Babcock Hitachi Kk | Circulating and controlling method for cooling water used for nox-reducing agent injecting apparatus |
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