GB2375059B - A method for lowering the nitrogen oxide content in the exhaust gas from an internal-combustion engine - Google Patents

A method for lowering the nitrogen oxide content in the exhaust gas from an internal-combustion engine

Info

Publication number
GB2375059B
GB2375059B GB0206469A GB0206469A GB2375059B GB 2375059 B GB2375059 B GB 2375059B GB 0206469 A GB0206469 A GB 0206469A GB 0206469 A GB0206469 A GB 0206469A GB 2375059 B GB2375059 B GB 2375059B
Authority
GB
United Kingdom
Prior art keywords
lowering
internal
exhaust gas
combustion engine
nitrogen oxide
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 - Fee Related
Application number
GB0206469A
Other versions
GB2375059A (en
GB0206469D0 (en
Inventor
Josef Guenther
Dirk Voigtlaender
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.)
Daimler AG
Original Assignee
DaimlerChrysler AG
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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of GB0206469D0 publication Critical patent/GB0206469D0/en
Publication of GB2375059A publication Critical patent/GB2375059A/en
Application granted granted Critical
Publication of GB2375059B publication Critical patent/GB2375059B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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 ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
    • 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
    • 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
    • B01D53/9495—Controlling the catalytic process
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
    • 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—Nitrogen oxides
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/18—Ammonia
    • 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
    • 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
GB0206469A 2001-03-22 2002-03-19 A method for lowering the nitrogen oxide content in the exhaust gas from an internal-combustion engine Expired - Fee Related GB2375059B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10113947A DE10113947B4 (en) 2001-03-22 2001-03-22 Process for reducing the nitrogen oxide content in the exhaust gas of a running in lean-fat change internal combustion engine

Publications (3)

Publication Number Publication Date
GB0206469D0 GB0206469D0 (en) 2002-05-01
GB2375059A GB2375059A (en) 2002-11-06
GB2375059B true GB2375059B (en) 2004-01-14

Family

ID=7678512

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0206469A Expired - Fee Related GB2375059B (en) 2001-03-22 2002-03-19 A method for lowering the nitrogen oxide content in the exhaust gas from an internal-combustion engine

Country Status (3)

Country Link
DE (1) DE10113947B4 (en)
FR (1) FR2822498B1 (en)
GB (1) GB2375059B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7946108B2 (en) * 2003-12-24 2011-05-24 Daimler Ag Method for regenerating a nitrogen oxide storage catalytic converter
CN103953423A (en) * 2012-12-12 2014-07-30 福特环球技术公司 Method of operating a diesel engine system having LNT and SCR aftertreatment devices

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US6742326B2 (en) 2001-08-09 2004-06-01 Ford Global Technologies, Llc High efficiency conversion of nitrogen oxides in an exhaust aftertreatment device at low temperature
US6928359B2 (en) * 2001-08-09 2005-08-09 Ford Global Technologies, Llc High efficiency conversion of nitrogen oxides in an exhaust aftertreatment device at low temperature
US6698191B2 (en) 2001-08-09 2004-03-02 Ford Global Technologies, Llc High efficiency conversion of nitrogen oxides in an exhaust aftertreatment device at low temperature
DE10300298A1 (en) 2003-01-02 2004-07-15 Daimlerchrysler Ag Exhaust gas aftertreatment device and method
DE10349876A1 (en) 2003-10-25 2005-05-25 Daimlerchrysler Ag Process to operate the catalytic components of an automotive exhaust system in three oxidizing and reducing modes
US7490464B2 (en) 2003-11-04 2009-02-17 Basf Catalysts Llc Emissions treatment system with NSR and SCR catalysts
DE10360955A1 (en) * 2003-12-23 2005-07-21 Umicore Ag & Co. Kg Emission control system and method for removing nitrogen oxides from the exhaust gas of internal combustion engines with the aid of catalytically generated ammonia
JP4526831B2 (en) * 2004-02-16 2010-08-18 本田技研工業株式会社 Exhaust gas purification device for internal combustion engine
EP1748834A1 (en) 2004-04-16 2007-02-07 HTE Aktiengesellschaft The High Throughput Experimentation Company Process for the removal of harmful substances from exhaust gases of combustion engines and catalyst for carrying out said process
US7067319B2 (en) * 2004-06-24 2006-06-27 Cummins, Inc. System for diagnosing reagent solution quality and emissions catalyst degradation
KR100667028B1 (en) * 2005-10-04 2007-01-10 희성엥겔하드주식회사 A scr catalytic converter without nh3 or urea injection
DE102006043082A1 (en) * 2005-11-14 2007-06-28 Robert Bosch Gmbh Process for reducing agent control in an exhaust aftertreatment plant
DE102006043152A1 (en) 2005-11-14 2007-06-28 Robert Bosch Gmbh Method and device for controlling a reducing agent generation system
DE102006043100A1 (en) * 2005-11-14 2007-06-28 Robert Bosch Gmbh Process for reducing agent control in an exhaust aftertreatment plant
DE102006008400B4 (en) * 2006-02-21 2015-06-03 Fev Gmbh Direct injection, spark ignition internal combustion engine with SCR catalyst and method therefor
WO2008022751A2 (en) * 2006-08-19 2008-02-28 Umicore Ag & Co. Kg Method for operating an exhaust-gas purification system in a lean-burn spark-ignition engine
US9662611B2 (en) 2009-04-03 2017-05-30 Basf Corporation Emissions treatment system with ammonia-generating and SCR catalysts
FR2952122B1 (en) * 2009-11-04 2011-12-09 Peugeot Citroen Automobiles Sa METHOD FOR CONTROLLING POLLUTANT EMISSIONS OF A COMBUSTION ENGINE
JP5938819B2 (en) 2011-10-06 2016-06-22 ジョンソン、マッセイ、パブリック、リミテッド、カンパニーＪｏｈｎｓｏｎ Ｍａｔｔｈｅｙ Ｐｕｂｌｉｃ Ｌｉｍｉｔｅｄ Ｃｏｍｐａｎｙ Oxidation catalyst for exhaust gas treatment
GB201200783D0 (en) 2011-12-12 2012-02-29 Johnson Matthey Plc Substrate monolith comprising SCR catalyst
GB201200784D0 (en) 2011-12-12 2012-02-29 Johnson Matthey Plc Exhaust system for a lean-burn internal combustion engine including SCR catalyst
GB201200781D0 (en) 2011-12-12 2012-02-29 Johnson Matthey Plc Exhaust system for a lean-burn ic engine comprising a pgm component and a scr catalyst
GB2497597A (en) 2011-12-12 2013-06-19 Johnson Matthey Plc A Catalysed Substrate Monolith with Two Wash-Coats
EP3020948A4 (en) * 2013-07-11 2016-08-10 Toyota Motor Co Ltd Exhaust purification device for internal combustion engine
FR3020831B1 (en) * 2014-05-06 2021-10-15 Peugeot Citroen Automobiles Sa AUTOMOTIVE VEHICLE WITH LOW TEMPERATURE DEPOLLUTION FUNCTION
FR3020830A1 (en) * 2014-05-06 2015-11-13 Peugeot Citroen Automobiles Sa MOTOR VEHICLE HAVING AN IMPROVED DEPOLLUTION SYSTEM
GB2533609A (en) * 2014-12-22 2016-06-29 Gm Global Tech Operations Llc An internal combustion engine equipped with a lean NOx trap
DE102016210897B4 (en) * 2016-06-17 2022-10-06 Ford Global Technologies, Llc Control of nitrogen oxide emissions in high-load operating phases
US10323594B2 (en) 2016-06-17 2019-06-18 Ford Global Technologies, Llc Methods and systems for treating vehicle emissions
CN115111073B (en) * 2021-12-22 2024-04-12 长城汽车股份有限公司 Method and system for treating vehicle tail gas by adopting LNT device

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GB2267365A (en) * 1992-05-27 1993-12-01 Daimler Benz Ag Exhaust gas aftertreatment device for internal combustion engines
EP0802315A2 (en) * 1996-04-19 1997-10-22 Toyota Jidosha Kabushiki Kaisha An exhaust gas purification device for an internal combustion engine
WO2000021647A1 (en) * 1998-10-12 2000-04-20 Johnson Matthey Public Limited Company Process and apparatus for treating combustion exhaust gas

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DE59708225D1 (en) 1996-04-20 2002-10-24 Volkswagen Ag Method for adjusting the idle speed of an internal combustion engine in a motor vehicle as a function of the steering actuation
JP3456408B2 (en) * 1997-05-12 2003-10-14 トヨタ自動車株式会社 Exhaust gas purification device for internal combustion engine
DE19915793A1 (en) * 1999-04-08 2000-10-19 Daimler Chrysler Ag Process for the desorption of a nitrogen oxide adsorber of an exhaust gas cleaning system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2267365A (en) * 1992-05-27 1993-12-01 Daimler Benz Ag Exhaust gas aftertreatment device for internal combustion engines
EP0802315A2 (en) * 1996-04-19 1997-10-22 Toyota Jidosha Kabushiki Kaisha An exhaust gas purification device for an internal combustion engine
WO2000021647A1 (en) * 1998-10-12 2000-04-20 Johnson Matthey Public Limited Company Process and apparatus for treating combustion exhaust gas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7946108B2 (en) * 2003-12-24 2011-05-24 Daimler Ag Method for regenerating a nitrogen oxide storage catalytic converter
CN103953423A (en) * 2012-12-12 2014-07-30 福特环球技术公司 Method of operating a diesel engine system having LNT and SCR aftertreatment devices
CN103953423B (en) * 2012-12-12 2018-05-18 福特环球技术公司 A kind of method for operating the diesel engine system with LNT and SCR after-treatment devices

Also Published As

Publication number Publication date
DE10113947B4 (en) 2004-03-25
GB2375059A (en) 2002-11-06
FR2822498A1 (en) 2002-09-27
DE10113947A1 (en) 2002-09-26
GB0206469D0 (en) 2002-05-01
FR2822498B1 (en) 2005-07-01

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20100319