ES475656A1 - Mejoras en un procedimiento y un aparato para controlar los oxidos de nitrogeno en los gases de escape de un equipo de combustion - Google Patents
Mejoras en un procedimiento y un aparato para controlar los oxidos de nitrogeno en los gases de escape de un equipo de combustionInfo
- Publication number
- ES475656A1 ES475656A1 ES475656A ES475656A ES475656A1 ES 475656 A1 ES475656 A1 ES 475656A1 ES 475656 A ES475656 A ES 475656A ES 475656 A ES475656 A ES 475656A ES 475656 A1 ES475656 A1 ES 475656A1
- Authority
- ES
- Spain
- Prior art keywords
- gas
- oxides
- nitrogen oxides
- ammonia
- exhaust 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.)
- Expired
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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
-
- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
- Chimneys And Flues (AREA)
Abstract
Mejoras en un procedimiento y un aparato para controlar los óxidos de nitrógeno en los gases de escape de un equipo de combustión, comprendiendo el procedimiento la reacción de descomposición de los óxidos, en presencia de oxígeno, con amoníaco inyectado en dicho equipo y en los conductos asociados a temperaturas comprendidas entre 700 y 1300ºC .cuya mejora consiste en disponer un sistema catalítico con las superficies catalíticas de las unidades componentes prácticamente paralelas a la dirección de flujo del gas, en una región donde la temperatura del gas después del tratamiento de descomposición está comprendida entre 300 y 500ºC, de manera que dicho gas, después del tratamiento de descomposición, pueda atravesar el sistema catalítico, y opcionalmente introducir un suministro adicional de amoniaco, en una proporción de 0,5 a 1, 5 moles por mol de óxido de nitrógeno en dicho gas, en el espacio inmediatamente anterior al sistema catalítico, acelerando así la descomposición de los óxidos contenidos en el gas a sustancias inofensivas.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14401277A JPS5477277A (en) | 1977-12-02 | 1977-12-02 | Method and apparatus for reducing nitrogen oxides in combustion exhaust gas |
Publications (1)
Publication Number | Publication Date |
---|---|
ES475656A1 true ES475656A1 (es) | 1980-02-01 |
Family
ID=15352257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES475656A Expired ES475656A1 (es) | 1977-12-02 | 1978-12-01 | Mejoras en un procedimiento y un aparato para controlar los oxidos de nitrogeno en los gases de escape de un equipo de combustion |
Country Status (7)
Country | Link |
---|---|
US (1) | US4302431A (es) |
JP (1) | JPS5477277A (es) |
CA (1) | CA1121981A (es) |
DE (1) | DE2852769A1 (es) |
ES (1) | ES475656A1 (es) |
FR (1) | FR2410787B1 (es) |
GB (1) | GB2008967B (es) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5479160A (en) * | 1977-12-07 | 1979-06-23 | Hitachi Ltd | Denitration method for exhaust gas |
US4423017A (en) * | 1981-10-29 | 1983-12-27 | Exxon Research And Engineering Co. | Process for reducing NO emissions |
NL8300587A (nl) * | 1982-03-12 | 1983-10-03 | Kali Chemie Ag | Werkwijze voor het behandelen van afvoergas. |
JPS6155501A (ja) * | 1984-08-24 | 1986-03-20 | 株式会社日立製作所 | 排熱回収ボイラ |
DE3535312A1 (de) * | 1985-10-03 | 1987-04-09 | Didier Eng | Verfahren zur senkung des stickoxidgehaltes von abgasen |
US4778665A (en) * | 1986-09-09 | 1988-10-18 | Mobil Oil Corporation | Abatement of NOx in exhaust gases |
CH673593A5 (es) * | 1986-10-13 | 1990-03-30 | Von Roll Ag | |
US4874590A (en) * | 1988-04-07 | 1989-10-17 | Uop | Catalytic reduction of nitrogen oxides |
DE3836131A1 (de) * | 1988-10-22 | 1990-04-26 | Linde Ag | Reaktor zur durchfuehrung von verbrennungsprozessen |
US4978514A (en) * | 1989-09-12 | 1990-12-18 | Fuel Tech, Inc. | Combined catalytic/non-catalytic process for nitrogen oxides reduction |
US5139754A (en) * | 1989-09-12 | 1992-08-18 | Fuel Tech, Inc. | Catalytic/non-catalytic combination process for nitrogen oxides reduction |
DE4010566A1 (de) * | 1990-04-02 | 1991-10-10 | Krc Umwelttechnik Gmbh | Verfahren zur abscheidung von kohlenstoffhaltigen und/oder stickoxidhaltigen schadstoffen in rauchgasen |
US5378442A (en) * | 1992-01-17 | 1995-01-03 | The Kansai Electric Power Co., Inc. | Method for treating combustion exhaust gas |
CA2088713C (en) * | 1992-02-24 | 1999-11-16 | Hans Thomas Hug | Cleaning exhaust gases from combustion installations |
US5233934A (en) * | 1992-08-20 | 1993-08-10 | Wahlco Environmental Systems, Inc. | Control of NOx reduction in flue gas flows |
US5336471A (en) * | 1993-05-19 | 1994-08-09 | Abb Air Preheater, Inc. | Support of ceramic catalyst |
US5419877A (en) * | 1993-09-17 | 1995-05-30 | General Atomics | Acoustic barrier separator |
US5807526A (en) * | 1993-11-05 | 1998-09-15 | Miljevic; Vujo | Device for removal of SO2 and NOx from flue gases by high frequency discharge by Tesla coil or other high voltage and high frequency generator |
US5853683A (en) * | 1995-06-19 | 1998-12-29 | Public Services Electric & Gas Corporation | Hybrid SCR/SNCR process |
DE19600869A1 (de) * | 1996-01-12 | 1997-07-17 | Metallgesellschaft Ag | Verfahren zur Entstickung von Rauchgasen |
US5985222A (en) | 1996-11-01 | 1999-11-16 | Noxtech, Inc. | Apparatus and method for reducing NOx from exhaust gases produced by industrial processes |
DE19705663A1 (de) * | 1997-02-14 | 1998-04-23 | Siemens Ag | Einrichtung zur Reduktion von Stickoxiden in einem mit Staub beladenen Abgas |
US6403046B1 (en) | 1999-07-26 | 2002-06-11 | Hera, Llc | Pollution control systems using urea and ammonia for the control of emissions from the flue gas of fossil fuel burning facilities |
US6146605A (en) * | 1999-07-26 | 2000-11-14 | Hera, Llc | Combined SCR/SNCR process |
US20020044886A1 (en) * | 2000-10-16 | 2002-04-18 | William Larco | Vaporization system having blower positioned in reduced temperature zone |
US6706246B2 (en) | 2001-02-26 | 2004-03-16 | Abb Lummus Global Inc. | System and method for the selective catalytic reduction of nitrogen oxide in a gas stream |
US6663839B2 (en) | 2001-02-26 | 2003-12-16 | Abb Lummus Global Inc. | Radial flow gas phase reactor and method for reducing the nitrogen oxide content of a gas |
US20020159923A1 (en) * | 2001-02-26 | 2002-10-31 | Platvoet Erwin M.J. | Gas phase reactor and process for reducing nitrogen oxide in a gas stream |
US6821490B2 (en) * | 2001-02-26 | 2004-11-23 | Abb Lummus Global Inc. | Parallel flow gas phase reactor and method for reducing the nitrogen oxide content of a gas |
DE10123402A1 (de) * | 2001-05-14 | 2002-11-28 | Fraunhofer Ges Forschung | Verfahren zum Behandeln von ammoniakhaltigen Rauchgasen |
US7572414B2 (en) * | 2001-10-09 | 2009-08-11 | Lummus Technology Inc. | Modular system and method for the catalytic treatment of a gas stream |
US7393511B2 (en) * | 2005-02-16 | 2008-07-01 | Basf Catalysts Llc | Ammonia oxidation catalyst for the coal fired utilities |
US7638107B1 (en) * | 2008-06-11 | 2009-12-29 | Callidus Technologies, LLC | Multi-bed selective catalytic reduction system |
USD751609S1 (en) | 2012-06-29 | 2016-03-15 | Caterpillar Inc. | Undercarriage track link for mobile earthmoving machine |
USD727974S1 (en) | 2012-06-29 | 2015-04-28 | Caterpillar Inc. | Undercarriage track roller for mobile earthmoving machine |
USD709527S1 (en) | 2012-06-29 | 2014-07-22 | Caterpillar Inc. | Undercarriage track idler for mobile earthmoving machine |
USD712935S1 (en) | 2012-06-29 | 2014-09-09 | Caterpillar Inc. | Undercarriage track shoe for mobile earthmoving machine |
USD719588S1 (en) | 2012-06-29 | 2014-12-16 | Caterpillar Inc. | Undercarriage track system for mobile earthmoving machine |
FR3071871B1 (fr) | 2017-09-29 | 2020-02-07 | Continental Automotive France | Procede de reduction catalytique selective avec desorption d'ammoniac a partir d'une cartouche dans une ligne d'echappement |
JP2023176186A (ja) | 2022-05-31 | 2023-12-13 | 中外炉工業株式会社 | 工業用炉の排気システム |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5154871A (ja) * | 1974-11-09 | 1976-05-14 | Mitsubishi Chem Ind | Nenshohaigasuchunochitsusosankabutsuno bunkaiho |
US3441381A (en) * | 1965-06-22 | 1969-04-29 | Engelhard Ind Inc | Apparatus for purifying exhaust gases of an internal combustion engine |
GB1380376A (en) * | 1972-03-20 | 1975-01-15 | Chemical Construction Corp | Catalytic exhaust gas treatment apparatus |
JPS50133995A (es) * | 1974-04-11 | 1975-10-23 | ||
JPS5118262A (en) * | 1974-08-06 | 1976-02-13 | Japan Gasoline | Haigasuchuno chitsusosankabutsuno jokyohoho |
JPS5641296B2 (es) * | 1974-11-11 | 1981-09-28 | ||
NL167334C (nl) * | 1975-01-13 | Mitsubishi Chem Ind | Werkwijze voor het verwijderen van stikstofoxyden uit een verbrandingsgas, in afwezigheid van een katalysator en in aanwezigheid van een ammoniakbron en zuurstof. | |
JPS5239568A (en) * | 1975-09-25 | 1977-03-26 | Jgc Corp | Process for removing dust sticked to inside of reactor |
FR2327814A1 (fr) * | 1975-10-15 | 1977-05-13 | Hitachi Ltd | Procede pour traiter par catalyse un gaz d'echappement renfermant de l'ammoniac gazeux et de l'oxygene gazeux. |
JPS5277878A (en) * | 1975-12-24 | 1977-06-30 | Ngk Insulators Ltd | Method of removing nitrogen oxides from exhaust gases |
US4193972A (en) * | 1977-11-02 | 1980-03-18 | Uop Inc. | Treating particle-containing SOx or NOx gas streams in parallel passage contactors |
-
1977
- 1977-12-02 JP JP14401277A patent/JPS5477277A/ja active Pending
-
1978
- 1978-11-30 GB GB7846658A patent/GB2008967B/en not_active Expired
- 1978-12-01 CA CA000317250A patent/CA1121981A/en not_active Expired
- 1978-12-01 ES ES475656A patent/ES475656A1/es not_active Expired
- 1978-12-04 DE DE19782852769 patent/DE2852769A1/de not_active Ceased
- 1978-12-04 FR FR7834075A patent/FR2410787B1/fr not_active Expired
-
1980
- 1980-05-21 US US06/151,814 patent/US4302431A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2410787A1 (fr) | 1979-06-29 |
DE2852769A1 (de) | 1979-06-28 |
US4302431A (en) | 1981-11-24 |
GB2008967B (en) | 1982-09-08 |
CA1121981A (en) | 1982-04-20 |
JPS5477277A (en) | 1979-06-20 |
FR2410787B1 (fr) | 1985-10-18 |
GB2008967A (en) | 1979-06-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES475656A1 (es) | Mejoras en un procedimiento y un aparato para controlar los oxidos de nitrogeno en los gases de escape de un equipo de combustion | |
ES2003742A6 (es) | Procedimiento y dispositivo para eliminar oxidos de notrogeno (nox) de gases de escape. | |
EP0694329A3 (en) | Exhaust gas denitrification process | |
FR2327814A1 (fr) | Procede pour traiter par catalyse un gaz d'echappement renfermant de l'ammoniac gazeux et de l'oxygene gazeux. | |
ES434010A1 (es) | Mejoras en el metodo operativo del sistema de escape de ga-ses en un motor de combustion interna. | |
JPS51129871A (en) | Adust removing and denitration process by catalytic reaction apparatus | |
GR3031994T3 (en) | Catalysts for treating exhaust gases from internal combustion and stationary source engines | |
GB1355848A (en) | Process for the decontamination of exhaust gases | |
JPS5258067A (en) | Method of oxidative decomposing ammonia | |
JPH01127028A (ja) | 燃焼排ガスの脱硝装置 | |
JPS5323858A (en) | Denitrating apparatus of moving bed type for exhaust gas | |
JPS5453666A (en) | Method and apparatus for purifying gas of high temperature | |
JPS5444233A (en) | Apparatus to reduce nitrogen oxide in burnt exhaust gas | |
JPS529673A (en) | A denitration apparatus for combustion gases | |
JPS5326262A (en) | Removing method for nitrogen oxides in exhaust gas | |
JPS546859A (en) | Denitrating method for exhaust gas containing co | |
JPS5332865A (en) | Dry denitrating method for exhaust combustion gas | |
JPS5325263A (en) | Treating method for making harmless products from desulfurization and denitration of exhaust gas | |
JPS522869A (en) | Industrial exhaust combustion gas treatment facility | |
JPS5325601A (en) | Treatment of exhaust combustion gases from coke ovens | |
JPS5637036A (en) | Treatment of nitrogen oxides in exhaust gas | |
JPS5347392A (en) | Catalyst for purification of exhaust gas | |
JPS5353572A (en) | Treating metod for gas cntaining ammonia | |
JPS5229481A (en) | Method of preparing catalyst for denitration of exhaust gas | |
UA19370C2 (uk) | Спосіб очистки газових викидів від аміаку |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19980202 |