FR2373327A1 - Procede d'elimination par l'ammoniac des oxydes d'azote des gaz en contenant - Google Patents
Procede d'elimination par l'ammoniac des oxydes d'azote des gaz en contenantInfo
- Publication number
- FR2373327A1 FR2373327A1 FR7737255A FR7737255A FR2373327A1 FR 2373327 A1 FR2373327 A1 FR 2373327A1 FR 7737255 A FR7737255 A FR 7737255A FR 7737255 A FR7737255 A FR 7737255A FR 2373327 A1 FR2373327 A1 FR 2373327A1
- Authority
- FR
- France
- Prior art keywords
- ammonia
- nitrogen oxides
- hydrogen peroxide
- elimination
- gases
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
L'invention concerne un procédé permettant d'éliminer à l'aide d'ammoniac les oxydes d'azote d'un gaz en contenant. On mélange un gaz chaud contenant des oxydes d'azote avec de l'ammoniac et du peroxyde d'hydrogène pour réduire les oxydes d'azote en azote et en eau. La réaction de réduction des oxydes d'azote par l'ammoniac est considérablement accrue à une température de 400 à 800 degrés C par addition du peroxyde d'hydrogène comme le montre la ligne pleine de la figure 1, la ligne pointillée correspondant à cette réaction en l'absence de peroxyde d'hydrogène. En outre l'ammoniac présent en excès des oxydes d'azote est décomposé, ce qui élimine la présence d'un effluent contenant de l'ammoniac n ayant pas réagi.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14774776A JPS5372773A (en) | 1976-12-10 | 1976-12-10 | Direct reductive denitration method of ammonia |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2373327A1 true FR2373327A1 (fr) | 1978-07-07 |
FR2373327B1 FR2373327B1 (fr) | 1980-08-22 |
Family
ID=15437217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7737255A Granted FR2373327A1 (fr) | 1976-12-10 | 1977-12-09 | Procede d'elimination par l'ammoniac des oxydes d'azote des gaz en contenant |
Country Status (5)
Country | Link |
---|---|
US (1) | US4213944A (fr) |
JP (1) | JPS5372773A (fr) |
CA (1) | CA1089195A (fr) |
DE (1) | DE2754932C2 (fr) |
FR (1) | FR2373327A1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988002088A1 (fr) * | 1986-09-19 | 1988-03-24 | Stordy Combustion Engineering Limited | Procede d'application d'une technique de combustion et appareil destine a etre utilise dans ledit procede |
WO1989002781A2 (fr) * | 1987-09-23 | 1989-04-06 | Fuel Tech, Inc. | Procede de reduction des oxydes d'azote et reduction au minimum de la production d'autres polluants |
EP0414817A1 (fr) * | 1988-06-15 | 1991-03-06 | Fuel Tech, Inc. | Procede de reduction d'oxydes limitant la production d'autres polluants |
EP0440604A1 (fr) * | 1988-10-31 | 1991-08-14 | Dale Gordon Jones | Procede et dispositifs pour nettoyer des gaz. |
US5252298A (en) * | 1991-04-23 | 1993-10-12 | Noell, Inc. | Device for cleaning gases |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5456976A (en) * | 1977-10-14 | 1979-05-08 | Hitachi Ltd | Treatment of gases containing nitrogen oxideds |
JPS5499771A (en) * | 1978-01-24 | 1979-08-06 | Mitsubishi Heavy Ind Ltd | Controlling method for ammonia injection at dry process exhaust gas dieitration method |
US4351810A (en) * | 1981-07-09 | 1982-09-28 | The United States Of America As Represented By The Secretary Of Commerce | Method for removing sulfur dioxide from a gas stream |
US4473537A (en) * | 1982-12-27 | 1984-09-25 | General Electric Company | Ammonia control system for NOx emission control for gas turbine exhaust |
US4473536A (en) * | 1982-12-27 | 1984-09-25 | General Electric Company | Catalytic pollution control system for gas turbine exhaust |
DE3407689A1 (de) * | 1984-03-02 | 1985-09-12 | Steag Ag, 4300 Essen | Verfahren zur no(pfeil abwaerts)x(pfeil abwaerts)-minderung bei wirbelschichtfeuerungen |
US4783325A (en) * | 1985-05-14 | 1988-11-08 | Jones Dale G | Process and apparatus for removing oxides of nitrogen and sulfur from combustion gases |
US5017347A (en) * | 1987-02-13 | 1991-05-21 | Fuel Tech, Inc. | Process for nitrogen oxides reduction and minimization of the production of other pollutants |
US5057293A (en) * | 1987-02-13 | 1991-10-15 | Fuel Tech, Inc. | Multi-stage process for reducing the concentration of pollutants in an effluent |
US4830839A (en) * | 1987-02-13 | 1989-05-16 | Fuel Tech, Inc. | Ammonia scrubbing |
US4777024A (en) * | 1987-03-06 | 1988-10-11 | Fuel Tech, Inc. | Multi-stage process for reducing the concentration of pollutants in an effluent |
JPH03503735A (ja) * | 1988-02-02 | 1991-08-22 | ジョーンズ,デイル ゴードン | 窒素酸化物の還元を目的とする2段ボイラー注入方法と装置 |
CA1295813C (fr) * | 1988-12-14 | 1992-02-18 | Karl T. Chuang | Reduction des oxydes nitriques |
US5240689A (en) * | 1989-06-19 | 1993-08-31 | Noell, Inc. | Process using two-stage boiler injection for reduction of nitrogen |
US5120516A (en) * | 1990-01-08 | 1992-06-09 | Physical Sciences, Inc. | Process for removing nox emissions from combustion effluents |
US5670122A (en) * | 1994-09-23 | 1997-09-23 | Energy And Environmental Research Corporation | Methods for removing air pollutants from combustion flue gas |
US20010012700A1 (en) * | 1998-12-15 | 2001-08-09 | Klaus F. Schuegraf | Semiconductor processing methods of chemical vapor depositing sio2 on a substrate |
US6676912B1 (en) * | 1999-10-28 | 2004-01-13 | The United States Of America As Represented By The Administrator Of The National Aeronautics & Space Administration | Method for removal of nitrogen oxides from stationary combustion sources |
US8449288B2 (en) * | 2003-03-19 | 2013-05-28 | Nalco Mobotec, Inc. | Urea-based mixing process for increasing combustion efficiency and reduction of nitrogen oxides (NOx) |
US7790128B2 (en) * | 2003-04-04 | 2010-09-07 | United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Hydrogen peroxide catalytic decomposition |
KR100597961B1 (ko) * | 2003-04-24 | 2006-07-06 | 한국남부발전 주식회사 | 고정원에서 발생되는 이산화질소 가시매연 저감방법 |
US7670569B2 (en) * | 2003-06-13 | 2010-03-02 | Mobotec Usa, Inc. | Combustion furnace humidification devices, systems & methods |
US7537743B2 (en) * | 2004-02-14 | 2009-05-26 | Mobotec Usa, Inc. | Method for in-furnace regulation of SO3 in catalytic NOx reducing systems |
US8251694B2 (en) * | 2004-02-14 | 2012-08-28 | Nalco Mobotec, Inc. | Method for in-furnace reduction flue gas acidity |
US7410356B2 (en) | 2005-11-17 | 2008-08-12 | Mobotec Usa, Inc. | Circulating fluidized bed boiler having improved reactant utilization |
US8069824B2 (en) * | 2008-06-19 | 2011-12-06 | Nalco Mobotec, Inc. | Circulating fluidized bed boiler and method of operation |
WO2010132563A2 (fr) * | 2009-05-15 | 2010-11-18 | Fmc Corporation | Traitement des nox présents dans les gaz de carneau |
DE102009023224A1 (de) * | 2009-05-29 | 2010-12-02 | Avl Emission Test Systems Gmbh | Anordnung zur geregelten Zuführung und Förderung eines Gasgemisches in eine Analysekammer |
ES2611135T3 (es) | 2009-08-03 | 2017-05-05 | Indigo Technologies Group Pty. Ltd. | Activación de peróxido de hidrogeno con catalizador |
US10486152B2 (en) * | 2013-04-19 | 2019-11-26 | Siemens Healthcare Diagnostics Inc. | Non-contact micro droplet dispenser and method |
WO2015039019A1 (fr) | 2013-09-13 | 2015-03-19 | Peroxychem Llc | Traitement des oxydes d'azote dans les flux de gaz de combustion |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5154871A (ja) * | 1974-11-09 | 1976-05-14 | Mitsubishi Chem Ind | Nenshohaigasuchunochitsusosankabutsuno bunkaiho |
CA989141A (en) | 1971-10-21 | 1976-05-18 | Arnold M. Eisenberg | Process for destruction of nitrogen oxides |
US3900554A (en) * | 1973-03-16 | 1975-08-19 | Exxon Research Engineering Co | Method for the reduction of the concentration of no in combustion effluents using ammonia |
JPS5120771A (ja) * | 1974-08-13 | 1976-02-19 | Mitsubishi Chem Ind | Chitsusosankabutsuobunkaisuruhoho |
JPS51111466A (en) * | 1975-03-26 | 1976-10-01 | Tsutomu Kagitani | Decomposition of nitrogen oxides |
-
1976
- 1976-12-10 JP JP14774776A patent/JPS5372773A/ja active Granted
-
1977
- 1977-12-07 CA CA292,595A patent/CA1089195A/fr not_active Expired
- 1977-12-09 FR FR7737255A patent/FR2373327A1/fr active Granted
- 1977-12-09 US US05/859,176 patent/US4213944A/en not_active Expired - Lifetime
- 1977-12-09 DE DE2754932A patent/DE2754932C2/de not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988002088A1 (fr) * | 1986-09-19 | 1988-03-24 | Stordy Combustion Engineering Limited | Procede d'application d'une technique de combustion et appareil destine a etre utilise dans ledit procede |
WO1989002781A2 (fr) * | 1987-09-23 | 1989-04-06 | Fuel Tech, Inc. | Procede de reduction des oxydes d'azote et reduction au minimum de la production d'autres polluants |
WO1989002781A3 (fr) * | 1987-09-23 | 1989-06-01 | Fuel Tech Inc | Procede de reduction des oxydes d'azote et reduction au minimum de la production d'autres polluants |
EP0414817A1 (fr) * | 1988-06-15 | 1991-03-06 | Fuel Tech, Inc. | Procede de reduction d'oxydes limitant la production d'autres polluants |
EP0414817A4 (en) * | 1988-06-15 | 1991-07-03 | Fuel Tech, Inc. | Process for nitrogen oxides reduction with minimization of the production of other pollutants |
EP0440604A1 (fr) * | 1988-10-31 | 1991-08-14 | Dale Gordon Jones | Procede et dispositifs pour nettoyer des gaz. |
EP0440604A4 (en) * | 1988-10-31 | 1992-03-18 | Dale Gordon Jones | Devices and method for cleaning gases |
US5252298A (en) * | 1991-04-23 | 1993-10-12 | Noell, Inc. | Device for cleaning gases |
Also Published As
Publication number | Publication date |
---|---|
DE2754932A1 (de) | 1978-06-15 |
JPS5372773A (en) | 1978-06-28 |
US4213944A (en) | 1980-07-22 |
FR2373327B1 (fr) | 1980-08-22 |
DE2754932C2 (de) | 1982-08-26 |
CA1089195A (fr) | 1980-11-11 |
JPS561128B2 (fr) | 1981-01-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2373327A1 (fr) | Procede d'elimination par l'ammoniac des oxydes d'azote des gaz en contenant | |
GB1461295A (en) | Process for the production of epsilon-carconitride layers on ferrous metal parts | |
FR2366223A1 (fr) | Procede de synthese de l'ammoniac exigeant une faible energie | |
KR830004444A (ko) | 스텐레스강 제조방법 | |
EA200300977A1 (ru) | Способ получения водорода и его применение | |
ES477955A1 (es) | Procedimiento para la conservacion continua de concentrados de sulfuros de metales no ferreos. | |
FR2376065A1 (fr) | Procede de transformation ulterieure de gaz de four a coke | |
FR2370684A1 (fr) | Procede pour la preparation d'un gaz riche en hydrogene | |
SE8002596L (sv) | Forfarande for framstellning av cyanvete | |
ES388791A1 (es) | Metodo de descarburacion de aceros de aleacion. | |
ES457618A1 (es) | Procedimiento para retirar compuestos de nitrogeno de las a-guas residuales. | |
ES440129A1 (es) | Procedimiento e instalacion para la reduccion de minerales de hierro. | |
JPS555725A (en) | Treating method for exhaust gas | |
ES325922A1 (es) | Metodo para la fabricacion de acido cianhidrico. | |
FR2393602A1 (fr) | Procede pour eliminer des oxydes d'azote de gaz d'echappement contenant de tels oxydes | |
GB1185086A (en) | Method for Operating an Oxygen Top-Blowing Converter | |
FR2441581A1 (fr) | Procede pour la fabrication par la voie pyrogene d'oxyde finement divise d'un metal et/ou d'un metalloide | |
FR2375168A1 (fr) | Procede de preparation de l'a,a,a-trifluorotoluene et de ses derives | |
FR2426677A1 (fr) | Procede de preparation de cyanates | |
JPS5514851A (en) | Method and apparatus for gas nitriding of stainles steel | |
GB935065A (en) | Improvements in or relating to the melting of steels | |
CA2268165A1 (fr) | Preparation de caprolactame | |
JPS6026611A (ja) | 含Cr極低窒素鋼の溶製方法 | |
GB1369595A (en) | Manufacture of steel and ferrous alloys in a converter | |
GB738510A (en) | Process for removing magnesium from aluminium |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |