JPS5444233A - Apparatus to reduce nitrogen oxide in burnt exhaust gas - Google Patents
Apparatus to reduce nitrogen oxide in burnt exhaust gasInfo
- Publication number
- JPS5444233A JPS5444233A JP11057177A JP11057177A JPS5444233A JP S5444233 A JPS5444233 A JP S5444233A JP 11057177 A JP11057177 A JP 11057177A JP 11057177 A JP11057177 A JP 11057177A JP S5444233 A JPS5444233 A JP S5444233A
- Authority
- JP
- Japan
- Prior art keywords
- nitrogen oxide
- exhaust gas
- reduce
- reducing
- injection
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/003—Arrangements of devices for treating smoke or fumes for supplying chemicals to fumes, e.g. using injection devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chimneys And Flues (AREA)
- Incineration Of Waste (AREA)
Abstract
PURPOSE:To reduce the nitrogen oxide highly effectively and ecconomically by forming an introduction pipe for an injection agent to reduce the nitrogen oxide in such a manner that the pipe is bent within an exhausting duct and equilibrating the injection agent and the combustion gas so as to result in a gaseous phase. CONSTITUTION:An injection agent for reducing and decomposing a nitrogen oxide, for example, an ammonia aqueous solution as a reducing agent and a hydrogen peroxide aqueous solution 7 which lowers the reducing reaction temperature are passed through introduction pipes 2, 3 which are bent reversely within an exhausting duct, pre-heated by means of the exhaust gas so as to make a change from a liquid phase to a gaseous phase and uniformly injected into the burnt exhaust gas from nozzles 4, 5 when equilibrated with the exhaust gas temperature, so as to reduce and decompose the nitrogen oxide. By this constitution, the heat transfer area is increased and an effect is obtained to render uniform the outlet condition of all the injection nozzles without employing complex heat exchanger or cooling means or the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11057177A JPS5444233A (en) | 1977-09-16 | 1977-09-16 | Apparatus to reduce nitrogen oxide in burnt exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11057177A JPS5444233A (en) | 1977-09-16 | 1977-09-16 | Apparatus to reduce nitrogen oxide in burnt exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5444233A true JPS5444233A (en) | 1979-04-07 |
Family
ID=14539198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11057177A Pending JPS5444233A (en) | 1977-09-16 | 1977-09-16 | Apparatus to reduce nitrogen oxide in burnt exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5444233A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011000685A1 (en) * | 2009-07-01 | 2011-01-06 | Sulzer Chemtech Ag | Device for cleaning exhaust gases containing nox |
| EP2353704A3 (en) * | 2010-02-03 | 2011-10-26 | Babcock & Wilcox Power Generation Group, Inc. | Stepped down gas device |
-
1977
- 1977-09-16 JP JP11057177A patent/JPS5444233A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011000685A1 (en) * | 2009-07-01 | 2011-01-06 | Sulzer Chemtech Ag | Device for cleaning exhaust gases containing nox |
| US20120087840A1 (en) * | 2009-07-01 | 2012-04-12 | Sebastian Hirschberg | Apparatus for the Purification of Exhaust Gases containing NOx |
| CN102472142A (en) * | 2009-07-01 | 2012-05-23 | 苏舍化学技术有限公司 | Device For Cleaning Exhaust Gases Containing Nox |
| EP2353704A3 (en) * | 2010-02-03 | 2011-10-26 | Babcock & Wilcox Power Generation Group, Inc. | Stepped down gas device |
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