JPS5499773A - Removing method for ammonia in combustion exhaust gas - Google Patents
Removing method for ammonia in combustion exhaust gasInfo
- Publication number
- JPS5499773A JPS5499773A JP610478A JP610478A JPS5499773A JP S5499773 A JPS5499773 A JP S5499773A JP 610478 A JP610478 A JP 610478A JP 610478 A JP610478 A JP 610478A JP S5499773 A JPS5499773 A JP S5499773A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- combustion exhaust
- containing oxygen
- hydrocarbon containing
- ammonia
- 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
- 238000002485 combustion reaction Methods 0.000 title abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title 2
- 229910021529 ammonia Inorganic materials 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 6
- 239000004215 Carbon black (E152) Substances 0.000 abstract 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 3
- 229930195733 hydrocarbon Natural products 0.000 abstract 3
- 150000002430 hydrocarbons Chemical class 0.000 abstract 3
- 239000001301 oxygen Substances 0.000 abstract 3
- 229910052760 oxygen Inorganic materials 0.000 abstract 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 239000002243 precursor Substances 0.000 abstract 2
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
Landscapes
- Chimneys And Flues (AREA)
- Treating Waste Gases (AREA)
Abstract
PURPOSE: To rapidly and cheaply remove unreacted NH3, by adding hydrocarbon containing oxygen (precursor), such as methanol etc., to a specifically fixed temperature domain of combustion exhaust gas of boiler etc, (in the neighborhood of upper flow of heat exchanger of low temperature part from NH3 injecting point.)
CONSTITUTION: NOxcontaining in combustion exhaust gas generated at the fire furnace la of the boiler for generation of electricity 1, is denitrated by NH3 injected from the line 2 in 900W1100°C of temperature domain. Next, unreacted NH3 is removed by hydrocarbon containing oxygen (for example, methanol, ethanol or another alcohols) or its precursor (CH4 or C2H6 etc.) added from the line 3 at the temperature domain more than 600°C neighboring the upper flow of the heat exchanger 1 of low temperature part. About 0.1W3 mols of adding quantity of the hydrocarbon containing oxygen against 1 mol of NH3 are suitable.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP610478A JPS5499773A (en) | 1978-01-25 | 1978-01-25 | Removing method for ammonia in combustion exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP610478A JPS5499773A (en) | 1978-01-25 | 1978-01-25 | Removing method for ammonia in combustion exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5499773A true JPS5499773A (en) | 1979-08-06 |
Family
ID=11629185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP610478A Pending JPS5499773A (en) | 1978-01-25 | 1978-01-25 | Removing method for ammonia in combustion exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5499773A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5549130A (en) * | 1978-10-03 | 1980-04-09 | Nippon Sheet Glass Co Ltd | Removing method for nitrogen oxide in exhaust gas |
| US4830839A (en) * | 1987-02-13 | 1989-05-16 | Fuel Tech, Inc. | Ammonia scrubbing |
| EP0638546A1 (en) * | 1993-08-11 | 1995-02-15 | The Standard Oil Company | A process for reduction of waste material during manufacture of acrylonitrile |
| JP2008161759A (en) * | 2006-12-27 | 2008-07-17 | Hitachi Zosen Corp | Leak ammonia reduction method in non-catalytic denitration of non-transfer type ash melting furnace exhaust gas |
-
1978
- 1978-01-25 JP JP610478A patent/JPS5499773A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5549130A (en) * | 1978-10-03 | 1980-04-09 | Nippon Sheet Glass Co Ltd | Removing method for nitrogen oxide in exhaust gas |
| US4830839A (en) * | 1987-02-13 | 1989-05-16 | Fuel Tech, Inc. | Ammonia scrubbing |
| WO1989005774A1 (en) * | 1987-12-14 | 1989-06-29 | Fuel Tech, Inc. | Ammonia scrubbing |
| EP0638546A1 (en) * | 1993-08-11 | 1995-02-15 | The Standard Oil Company | A process for reduction of waste material during manufacture of acrylonitrile |
| JP2008161759A (en) * | 2006-12-27 | 2008-07-17 | Hitachi Zosen Corp | Leak ammonia reduction method in non-catalytic denitration of non-transfer type ash melting furnace exhaust gas |
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