JPS5456977A - Removal of nitrogen oxides in sintering exhaust gas - Google Patents
Removal of nitrogen oxides in sintering exhaust gasInfo
- Publication number
- JPS5456977A JPS5456977A JP12345177A JP12345177A JPS5456977A JP S5456977 A JPS5456977 A JP S5456977A JP 12345177 A JP12345177 A JP 12345177A JP 12345177 A JP12345177 A JP 12345177A JP S5456977 A JPS5456977 A JP S5456977A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- reactor
- exhaust gas
- charged
- furnace
- 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
- Manufacture And Refinement Of Metals (AREA)
- Treating Waste Gases (AREA)
Abstract
PURPOSE: To reduce the discharge of unreacted NH3 to the outside of reactor and also the absolute amount of NOx at the inlet of reactor by the method in which a part of preheated sintering exhaust gas and NH3 are charged into a heating furnace to mix with the heating furnace gas and the furnace temperature and the residence time of the mixed gas are set to a specific condition.
CONSTITUTION: After preheating the sintering exhaust gas to be treated through the heat absorption side of the heat exchanger 1, a part of the exhauust gas is charged through the blower 5 into the heating furnace, and the remainder is sent into the mixer 3 to mix with the gas from the furnace 2, from which the mixed gas is supplied to the reactor 4. In this case, where a part of the sintering exhaust gas and NH3 are charged, together with air and fuel, into the reactor, the temperature inside the furnace 2 is kept at more than 900°C and also the residence time of the mixed gas in the reactor is set to more than 0.5 second. Then, the treated gas after denitrification in the reactor 4 is charged into the heating side of the heat exchanger 1 and afterwards discharged to the outside
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12345177A JPS5456977A (en) | 1977-10-17 | 1977-10-17 | Removal of nitrogen oxides in sintering exhaust gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12345177A JPS5456977A (en) | 1977-10-17 | 1977-10-17 | Removal of nitrogen oxides in sintering exhaust gas |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5456977A true JPS5456977A (en) | 1979-05-08 |
Family
ID=14860923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12345177A Pending JPS5456977A (en) | 1977-10-17 | 1977-10-17 | Removal of nitrogen oxides in sintering exhaust gas |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5456977A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100436610C (en) * | 2007-04-06 | 2008-11-26 | 中国科学院过程工程研究所 | Method of eliminating NOx in metallurgy sintering process |
-
1977
- 1977-10-17 JP JP12345177A patent/JPS5456977A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100436610C (en) * | 2007-04-06 | 2008-11-26 | 中国科学院过程工程研究所 | Method of eliminating NOx in metallurgy sintering process |
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