WO2008043937A3 - Systeme de traitement d'oxydes d'azote avec limitation des rejets d'ammoniac - Google Patents
Systeme de traitement d'oxydes d'azote avec limitation des rejets d'ammoniac Download PDFInfo
- Publication number
- WO2008043937A3 WO2008043937A3 PCT/FR2007/052075 FR2007052075W WO2008043937A3 WO 2008043937 A3 WO2008043937 A3 WO 2008043937A3 FR 2007052075 W FR2007052075 W FR 2007052075W WO 2008043937 A3 WO2008043937 A3 WO 2008043937A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nitrogen oxides
- tank
- exhaust system
- treating nitrogen
- ammonia emissions
- Prior art date
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
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9431—Processes characterised by a specific device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2067—Urea
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/06—Adding substances to exhaust gases the substance being in the gaseous form
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Toxicology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
L'invention se rapporte à un système de traitement d'oxydes d'azote à réduction catalytique sélective, dite SCR, destiné à être installé dans la ligne d'échappement (10) du moteur d'un véhicule, le traitement consistant à réduire chimiquement, dans un catalyseur (12), dit catalyseur SCR, les oxydes d'azote en injectant de l'ammoniac sous forme d'urée liquide (14), pure ou en solution, cette urée liquide (14) étant stockée dans un réservoir spécifique (16) destiné à être installé dans le véhicule, et le système comprenant un tube de retour (11) reliant une sortie du réservoir (16) à la ligne d'échappement (10) du moteur, de manière à diriger les vapeurs d'ammoniac, émises lors d'une décomposition de l'urée dans le réservoir (16), vers la ligne d'échappement (10) du moteur, en amont du catalyseur SCR (12).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07858506A EP2074292A2 (fr) | 2006-10-13 | 2007-10-03 | Système de traitement d'oxydes d'azote avec limitation des rejets d'ammoniac |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0654254 | 2006-10-13 | ||
FR0654254A FR2907027B1 (fr) | 2006-10-13 | 2006-10-13 | Systeme de traitement d'oxydes d'azote avec limitation des rejets d'ammoniac |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008043937A2 WO2008043937A2 (fr) | 2008-04-17 |
WO2008043937A3 true WO2008043937A3 (fr) | 2008-07-17 |
Family
ID=37865874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2007/052075 WO2008043937A2 (fr) | 2006-10-13 | 2007-10-03 | Systeme de traitement d'oxydes d'azote avec limitation des rejets d'ammoniac |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2074292A2 (fr) |
FR (1) | FR2907027B1 (fr) |
WO (1) | WO2008043937A2 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8146343B2 (en) | 2007-08-08 | 2012-04-03 | Ford Global Technologies, Llc | Approach for injecting a reductant |
GB0802181D0 (en) * | 2008-02-06 | 2008-03-12 | Norgren Ltd C A | Exhaust gas treatment |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0577853A1 (fr) * | 1992-05-08 | 1994-01-12 | Siemens Aktiengesellschaft | Dispositif pour la dénitration des gaz d'échappement des moteurs à combustion interne |
JPH09150037A (ja) * | 1995-12-01 | 1997-06-10 | Niigata Eng Co Ltd | 排煙脱硝装置の還元剤噴霧装置 |
US20010053342A1 (en) * | 1997-07-03 | 2001-12-20 | Armin Marko | Method and device for selective catalytic nox reduction |
EP1669567A1 (fr) * | 2003-09-19 | 2006-06-14 | Nissan Diesel Motor Co., Ltd. | Dispositif de purification des gaz d'echappement d'un moteur |
US20070277505A1 (en) * | 2006-05-30 | 2007-12-06 | Ford Global Technologies, Llc | Venting of on-board vehicle emissions treatment system |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4745968B2 (ja) * | 2004-07-29 | 2011-08-10 | エヌ・イーケムキャット株式会社 | 低温特性に優れる脱硝触媒 |
-
2006
- 2006-10-13 FR FR0654254A patent/FR2907027B1/fr not_active Expired - Fee Related
-
2007
- 2007-10-03 WO PCT/FR2007/052075 patent/WO2008043937A2/fr active Application Filing
- 2007-10-03 EP EP07858506A patent/EP2074292A2/fr not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0577853A1 (fr) * | 1992-05-08 | 1994-01-12 | Siemens Aktiengesellschaft | Dispositif pour la dénitration des gaz d'échappement des moteurs à combustion interne |
JPH09150037A (ja) * | 1995-12-01 | 1997-06-10 | Niigata Eng Co Ltd | 排煙脱硝装置の還元剤噴霧装置 |
US20010053342A1 (en) * | 1997-07-03 | 2001-12-20 | Armin Marko | Method and device for selective catalytic nox reduction |
EP1669567A1 (fr) * | 2003-09-19 | 2006-06-14 | Nissan Diesel Motor Co., Ltd. | Dispositif de purification des gaz d'echappement d'un moteur |
US20070277505A1 (en) * | 2006-05-30 | 2007-12-06 | Ford Global Technologies, Llc | Venting of on-board vehicle emissions treatment system |
Non-Patent Citations (1)
Title |
---|
See also references of EP2074292A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2008043937A2 (fr) | 2008-04-17 |
FR2907027B1 (fr) | 2009-05-15 |
FR2907027A1 (fr) | 2008-04-18 |
EP2074292A2 (fr) | 2009-07-01 |
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