JPS5665617A - Method of heating denox waste gas - Google Patents
Method of heating denox waste gasInfo
- Publication number
- JPS5665617A JPS5665617A JP14068479A JP14068479A JPS5665617A JP S5665617 A JPS5665617 A JP S5665617A JP 14068479 A JP14068479 A JP 14068479A JP 14068479 A JP14068479 A JP 14068479A JP S5665617 A JPS5665617 A JP S5665617A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- waste gas
- mixed
- diluting
- duct
- 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 simply save the amount of fuel by a method wherein part of waste gas containing unburnt component is jetted into the heating furnace as a diluting gas and mixed with combusted gas, and the mixed gas is mixed with the remaining waste gas and heated to a temperature of denox reaction.
CONSTITUTION: A combusting oxygen source such as air or waste gas is used as a fuel for combustion. This combusted gas is projected from the burner 13 in the combustion chamber 11, and part of waste gas containing unburnt component such as Co or hydrocarbon, e.g., sintered waste gas, is injected from the branch duct 17 as a diluting gas. As a result, the temperature of the combusted gas is decreased and at the same time the unburnt combponent in the diluting waste gas oxidizes and generates heat. In this process, a preferable condition is a combusted gas temperature at 750W1,000°C which is maintained by controlling the amount of diluting gas with the flow damper 18, and a gas staying time in the combustion chamber 11 maintained at 0.5W1sec. Then, the mixed gas is guided to the mixing chamber 12 through hot draft duct 14 to be mixed with the remaining waste gas from the duct 15, and the mixed gas is raised to about 400°C, or denox reaction temperature, and is guided through duct 16 into the denox reactor.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54140684A JPS5858133B2 (en) | 1979-10-31 | 1979-10-31 | Temperature raising method for denitrified exhaust gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54140684A JPS5858133B2 (en) | 1979-10-31 | 1979-10-31 | Temperature raising method for denitrified exhaust gas |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5665617A true JPS5665617A (en) | 1981-06-03 |
JPS5858133B2 JPS5858133B2 (en) | 1983-12-23 |
Family
ID=15274344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54140684A Expired JPS5858133B2 (en) | 1979-10-31 | 1979-10-31 | Temperature raising method for denitrified exhaust gas |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5858133B2 (en) |
-
1979
- 1979-10-31 JP JP54140684A patent/JPS5858133B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5858133B2 (en) | 1983-12-23 |
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