JPS5472765A - Injecting method for ammonia-containing gas mixture - Google Patents
Injecting method for ammonia-containing gas mixtureInfo
- Publication number
- JPS5472765A JPS5472765A JP14039577A JP14039577A JPS5472765A JP S5472765 A JPS5472765 A JP S5472765A JP 14039577 A JP14039577 A JP 14039577A JP 14039577 A JP14039577 A JP 14039577A JP S5472765 A JPS5472765 A JP S5472765A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- temp
- mixt
- nozzle
- contg
- 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 excessive rise in temp. of NH3-contg. gas mixt, and nozzle for the gas mixt., which is injected into a high-temp. exhaust gas from a coal burning boiler etc. in order to denitrate the exhaust gas, by cooling and circulating a portion of NH3-contg. gas mixt. fed to the injection nozzle through a closed cycle system.
CONSTITUTION: Sterm (air) and NH3 gas, whose flow quantities are controlled respectively by control valves 1, 2, are mixed in a pipe line 7 and fed to injection nozzles 3, and is aprayed into high-temp. gas. The temp of the mixed gas is maintained at a temp. not higher than about 600°C for steam-NH3, and 400° for air-NH3 (to prevent decomposition of NH3). Excessive gas mixt. is delivered through a return pipe 4 to a cooler 5, where it is cooled, then it is pressureized by a blower 6 and is circulated to the nozzle 3. This process makes it unnecessary to use double tube and insulating material as well for nozzles.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14039577A JPS5472765A (en) | 1977-11-22 | 1977-11-22 | Injecting method for ammonia-containing gas mixture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14039577A JPS5472765A (en) | 1977-11-22 | 1977-11-22 | Injecting method for ammonia-containing gas mixture |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5472765A true JPS5472765A (en) | 1979-06-11 |
Family
ID=15267791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14039577A Pending JPS5472765A (en) | 1977-11-22 | 1977-11-22 | Injecting method for ammonia-containing gas mixture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5472765A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61186946U (en) * | 1985-05-13 | 1986-11-21 |
-
1977
- 1977-11-22 JP JP14039577A patent/JPS5472765A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61186946U (en) * | 1985-05-13 | 1986-11-21 | ||
JPH0325003Y2 (en) * | 1985-05-13 | 1991-05-30 |
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