WO2009053638A3 - Procede de gestion d'injection d'uree dans un systeme a reduction catalytique selective - Google Patents

Procede de gestion d'injection d'uree dans un systeme a reduction catalytique selective Download PDF

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Publication number
WO2009053638A3
WO2009053638A3 PCT/FR2008/051851 FR2008051851W WO2009053638A3 WO 2009053638 A3 WO2009053638 A3 WO 2009053638A3 FR 2008051851 W FR2008051851 W FR 2008051851W WO 2009053638 A3 WO2009053638 A3 WO 2009053638A3
Authority
WO
WIPO (PCT)
Prior art keywords
urea
temperature
injection
catalyst
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.)
Ceased
Application number
PCT/FR2008/051851
Other languages
English (en)
Other versions
WO2009053638A2 (fr
Inventor
Pierre-Henri Maesse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Priority to RU2010120649/06A priority Critical patent/RU2477374C2/ru
Priority to ES08842156T priority patent/ES2414471T3/es
Priority to EP08842156.5A priority patent/EP2201230B1/fr
Priority to US12/739,114 priority patent/US8505280B2/en
Publication of WO2009053638A2 publication Critical patent/WO2009053638A2/fr
Publication of WO2009053638A3 publication Critical patent/WO2009053638A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. by adjusting the dosing of reducing agent
    • 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
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
    • F01N2610/146—Control thereof, e.g. control of injectors or injection valves
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/04—Methods of control or diagnosing
    • F01N2900/0408—Methods of control or diagnosing using a feed-back loop
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
    • F01N2900/1402—Exhaust gas composition
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
    • F01N2900/1622—Catalyst reducing agent absorption capacity or consumption amount
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/18—Parameters used for exhaust control or diagnosing said parameters being related to the system for adding a substance into the exhaust
    • F01N2900/1806—Properties of reducing agent or dosing system
    • F01N2900/1811—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/024—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus
    • F02D41/0245—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus by increasing temperature of the exhaust gas leaving the engine
    • 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)
  • Toxicology (AREA)
  • Combustion & Propulsion (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 procédé de gestion de l'injection d'urée dans un système de traitement d'oxydes d'azote à réduction catalytique sélective, dite CR, destiné à être installé dans la ligne d'échappement (6) d'un moteur (2) de véhicule automobile (1), le traitement consistant à réduire chimiquement, dans un catalyseur (3), dit catalyseur SCR, les oxydes d'azote en ajoutant de l'ammoniac contenu dans l'urée, le procédé comprenant les étapes suivantes : on mesure la température des gaz dans la ligne d'échappement (6) du moteur (2), en amont du catalyseur SCR (3), si la température mesurée est supérieure à une valeur minimale prédéterminée, appelée température minimale d'injection, on commande une injection d'urée (5), si la température mesurée est inférieure à la température minimale d'injection, on met en œuvre les sous-étapes suivantes : on détermine une masse d'ammoniac stockée dans le catalyseur SCR (3), on détermine la quantité d'ammoniac nécessaire pour obtenir une conversion des oxydes d'azote supérieure à une valeur prédéterminée, si la masse d'ammoniac stockée dans le catalyseur est inférieure à cette quantité nécessaire, on commande l'activation d'un mode de chauffage des gaz d'échappement, et une injection d'urée dans le système.
PCT/FR2008/051851 2007-10-23 2008-10-13 Procede de gestion d'injection d'uree dans un systeme a reduction catalytique selective Ceased WO2009053638A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
RU2010120649/06A RU2477374C2 (ru) 2007-10-23 2008-10-13 Способ управления впрыском мочевины в систему селективного каталитического восстановления
ES08842156T ES2414471T3 (es) 2007-10-23 2008-10-13 Procedimiento de gestión de inyección de urea en un sistema con reducción catalítica selectiva
EP08842156.5A EP2201230B1 (fr) 2007-10-23 2008-10-13 Procede de gestion d'injection d'uree dans un systeme a reduction catalytique selective
US12/739,114 US8505280B2 (en) 2007-10-23 2008-10-13 Process for controlling the injection of urea in a selective catalytic reduction system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0758531 2007-10-23
FR0758531A FR2922594A1 (fr) 2007-10-23 2007-10-23 Procede de gestion d'injection d'uree dans un systeme a reduction catalytique selective

Publications (2)

Publication Number Publication Date
WO2009053638A2 WO2009053638A2 (fr) 2009-04-30
WO2009053638A3 true WO2009053638A3 (fr) 2009-08-20

Family

ID=39409984

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2008/051851 Ceased WO2009053638A2 (fr) 2007-10-23 2008-10-13 Procede de gestion d'injection d'uree dans un systeme a reduction catalytique selective

Country Status (6)

Country Link
US (1) US8505280B2 (fr)
EP (1) EP2201230B1 (fr)
ES (1) ES2414471T3 (fr)
FR (1) FR2922594A1 (fr)
RU (1) RU2477374C2 (fr)
WO (1) WO2009053638A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8689544B2 (en) 2011-07-15 2014-04-08 GM Global Technology Operations LLC Emission control system for a vehicle
DE102012103453A1 (de) * 2012-04-19 2013-10-24 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren und Vorrichtung zur Entleerung einer Fördereinheit für ein flüssiges Additiv
DE102014007433A1 (de) * 2014-05-22 2015-12-17 Man Truck & Bus Ag Verfahren zur Kalibrierung eines Steuergerätes, das einen durch reaktionskinetische Gleichungen beschreibbaren technischen Prozess steuert oder regelt, insbesondere zur Kalibrierung eines eine Abgasnachbehandlung in einem Abgasstrom einer Brennkraftmaschine steuernden oder regelnden Steuergerätes
US10473013B2 (en) 2014-09-26 2019-11-12 Cummins Emission Solutions, Inc. Integrative reductant system and method using constant volume injection
FR3062162A1 (fr) * 2017-01-24 2018-07-27 Peugeot Citroen Automobiles Sa Procede d'activation d'un mode de combustion d'un moteur favorisant la thermique a l'echappement en cours de roulage
CN114762796B (zh) * 2021-01-15 2024-09-13 长城汽车股份有限公司 氮氧化物的净化装置及车辆
CN114236050B (zh) * 2021-12-13 2024-02-20 潍柴动力股份有限公司 一种氮氧传感器控制方法及装置
CN117432509B (zh) * 2023-11-28 2025-01-28 一汽解放汽车有限公司 双级scr系统的反应控制方法、装置、系统和存储介质

Citations (4)

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Publication number Priority date Publication date Assignee Title
US6305160B1 (en) * 1999-07-12 2001-10-23 Ford Global Technologies, Inc. Emission control system
US20030036841A1 (en) * 2001-08-09 2003-02-20 Lifeng Xu High efficiency conversion of nitrogen oxides in an exhaust aftertreatment device at low temperature
EP1431533A2 (fr) * 2002-12-19 2004-06-23 Caterpillar Inc. Système de contrôle des émissions pour augmenter l'efficacité d'une réduction catalytique sélective
EP1602403A2 (fr) * 1998-06-23 2005-12-07 Toyota Jidosha Kabushiki Kaisha Dispositif de réglage d'émission de gaz d'échappement dans un moteur à combustion interne

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DE4315278A1 (de) * 1993-05-07 1994-11-10 Siemens Ag Verfahren und Einrichtung zur Dosierung eines Reduktionsmittels in ein stickoxidhaltiges Abgas
EP0864732B1 (fr) * 1997-03-13 2003-02-26 Haldor Topsoe A/S Procédé de réduction sélective de NOx dans les gaz d'échappement
US6295809B1 (en) * 1999-07-12 2001-10-02 Ford Global Technologies, Inc. Emission control system with a catalyst
WO2003100225A1 (fr) * 2002-05-07 2003-12-04 Extengine Transport Systems Systeme de reglage d'emissions
US6993900B2 (en) * 2002-10-21 2006-02-07 Ford Global Technologies, Llc Exhaust gas aftertreatment systems
DE10300298A1 (de) * 2003-01-02 2004-07-15 Daimlerchrysler Ag Abgasnachbehandlungseinrichtung und -verfahren
DE102006043104A1 (de) * 2005-11-14 2007-07-05 Robert Bosch Gmbh Abgasreinigungsanlage für ein Kraftfahrzeug
US8006481B2 (en) * 2006-09-20 2011-08-30 GM Global Technology Operations LLC Method and apparatus to selectively reduce NOx in an exhaust gas feedstream
US7707824B2 (en) * 2007-04-10 2010-05-04 Gm Global Technology Operations, Inc. Excess NH3 storage control for SCR catalysts
EP2112341B1 (fr) * 2008-04-22 2018-07-11 Umicore AG & Co. KG Procédé de purification de gaz d'échappement d'un moteur Diesel

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
EP1602403A2 (fr) * 1998-06-23 2005-12-07 Toyota Jidosha Kabushiki Kaisha Dispositif de réglage d'émission de gaz d'échappement dans un moteur à combustion interne
US6305160B1 (en) * 1999-07-12 2001-10-23 Ford Global Technologies, Inc. Emission control system
US20030036841A1 (en) * 2001-08-09 2003-02-20 Lifeng Xu High efficiency conversion of nitrogen oxides in an exhaust aftertreatment device at low temperature
EP1431533A2 (fr) * 2002-12-19 2004-06-23 Caterpillar Inc. Système de contrôle des émissions pour augmenter l'efficacité d'une réduction catalytique sélective

Also Published As

Publication number Publication date
EP2201230B1 (fr) 2013-05-29
WO2009053638A2 (fr) 2009-04-30
US20100300076A1 (en) 2010-12-02
ES2414471T3 (es) 2013-07-19
EP2201230A2 (fr) 2010-06-30
FR2922594A1 (fr) 2009-04-24
RU2477374C2 (ru) 2013-03-10
RU2010120649A (ru) 2011-11-27
US8505280B2 (en) 2013-08-13

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