GB2344772B - Method for sulphate regeneration of a no x storage reduction catalytic converter for a lean internal combustion engine - Google Patents

Method for sulphate regeneration of a no x storage reduction catalytic converter for a lean internal combustion engine

Info

Publication number
GB2344772B
GB2344772B GB9925996A GB9925996A GB2344772B GB 2344772 B GB2344772 B GB 2344772B GB 9925996 A GB9925996 A GB 9925996A GB 9925996 A GB9925996 A GB 9925996A GB 2344772 B GB2344772 B GB 2344772B
Authority
GB
United Kingdom
Prior art keywords
combustion engine
internal combustion
catalytic converter
storage reduction
reduction catalytic
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
GB9925996A
Other versions
GB2344772A (en
GB9925996D0 (en
Inventor
Willibald Schuerz
Hong Zhang
Corinna Pfleger
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of GB9925996D0 publication Critical patent/GB9925996D0/en
Publication of GB2344772A publication Critical patent/GB2344772A/en
Application granted granted Critical
Publication of GB2344772B publication Critical patent/GB2344772B/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
    • F01N3/0807—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
    • 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
    • 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
    • F01N3/0871—Regulation of absorbents or adsorbents, e.g. purging
    • F01N3/0885—Regeneration of deteriorated absorbents or adsorbents, e.g. desulfurization of NOx traps
    • 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
    • F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
    • F02D41/0275—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus the exhaust gas treating apparatus being a NOx trap or adsorbent
    • F02D41/028—Desulfurisation of NOx traps or adsorbent
    • 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
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
    • F02D41/1483—Proportional component
    • 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
    • F01N2570/04—Sulfur or sulfur oxides
    • 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
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
    • F02D41/1441—Plural sensors
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
GB9925996A 1998-11-10 1999-11-04 Method for sulphate regeneration of a no x storage reduction catalytic converter for a lean internal combustion engine Expired - Fee Related GB2344772B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19851843A DE19851843B4 (en) 1998-11-10 1998-11-10 A process for sulfate regeneration of a NOx storage catalyst for a lean-burn engine

Publications (3)

Publication Number Publication Date
GB9925996D0 GB9925996D0 (en) 2000-01-12
GB2344772A GB2344772A (en) 2000-06-21
GB2344772B true GB2344772B (en) 2002-07-31

Family

ID=7887326

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9925996A Expired - Fee Related GB2344772B (en) 1998-11-10 1999-11-04 Method for sulphate regeneration of a no x storage reduction catalytic converter for a lean internal combustion engine

Country Status (3)

Country Link
DE (1) DE19851843B4 (en)
FR (1) FR2785555B1 (en)
GB (1) GB2344772B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6973775B2 (en) 2002-08-23 2005-12-13 Umicore Ag & Co. Kg Method for desulfating a nitrogen oxide storage catalyst

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10038461B4 (en) * 2000-08-07 2009-12-24 Volkswagen Ag Model for a NOx storage catalyst
JP3791312B2 (en) * 2000-09-07 2006-06-28 トヨタ自動車株式会社 Exhaust gas purification device for internal combustion engine
DE10057936A1 (en) * 2000-11-22 2002-05-23 Volkswagen Ag Regenerating nitrogen oxides storage catalyst in exhaust gas channel of lean-burn I.C. engine involves using extrapolated oxygen-dependent signal
DE10113382A1 (en) * 2001-03-20 2002-10-10 Audi Ag Method for heating a downstream catalyst in an exhaust gas system of an internal combustion engine
LU90795B1 (en) * 2001-06-27 2002-12-30 Delphi Tech Inc Nox release index
DE10139992B4 (en) * 2001-08-16 2006-04-27 Daimlerchrysler Ag Method for controlling the mixture composition for a gasoline engine with NOx storage catalyst during a regeneration phase
DE10156476B4 (en) * 2001-11-16 2012-10-31 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Method for detecting the progressive sulfurization of a NOx storage catalytic converter
JP3800080B2 (en) * 2001-11-30 2006-07-19 トヨタ自動車株式会社 Exhaust gas purification device for internal combustion engine
JP3925357B2 (en) * 2002-08-30 2007-06-06 いすゞ自動車株式会社 Control method of exhaust gas purification system
JP4288942B2 (en) 2002-12-20 2009-07-01 トヨタ自動車株式会社 Exhaust gas purification device for internal combustion engine
DE10307457B4 (en) * 2003-02-21 2006-10-26 Audi Ag Method for operating a nitrogen oxide storage catalytic converter of an internal combustion engine
JP4415648B2 (en) 2003-11-05 2010-02-17 いすゞ自動車株式会社 Sulfur purge control method and exhaust gas purification system
DE102004002292B4 (en) * 2004-01-16 2010-08-12 Audi Ag Catalytic converter and method for operating an exhaust gas catalytic device
DE102004002291B4 (en) * 2004-01-16 2010-01-07 Audi Ag Method for operating an internal combustion engine of a vehicle, in particular of a motor vehicle
DE102004009615B4 (en) * 2004-02-27 2008-03-13 Siemens Ag Method for determining the current oxygen loading of a 3-way catalytic converter of a lambda-controlled internal combustion engine
DE102005060154B4 (en) * 2005-12-16 2010-03-11 Audi Ag Method and device for lambda control of an internal combustion engine
DE102021102455A1 (en) 2021-02-03 2022-08-04 Audi Aktiengesellschaft Method for operating a drive device and corresponding drive device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0580389A1 (en) * 1992-07-24 1994-01-26 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification apparatus for an internal combustion engine
EP0690213A1 (en) * 1994-06-30 1996-01-03 Toyota Jidosha Kabushiki Kaisha Exhaust purification device of internal combustion engine
US5771685A (en) * 1996-10-16 1998-06-30 Ford Global Technologies, Inc. Method for monitoring the performance of a NOx trap
EP0858837A2 (en) * 1997-02-12 1998-08-19 Siemens Aktiengesellschaft Process for regenerating a storage catalyst
US5983627A (en) * 1997-09-02 1999-11-16 Ford Global Technologies, Inc. Closed loop control for desulfating a NOx trap
EP0972927A2 (en) * 1998-07-17 2000-01-19 Denso Corporation Engine exhaust purification system and method

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Publication number Priority date Publication date Assignee Title
DE1952165C3 (en) * 1969-10-16 1978-06-01 Harry 5400 Koblenz Maltusch Roller shutter belt winder
EP0636770B1 (en) * 1993-01-19 1999-09-08 Toyota Jidosha Kabushiki Kaisha Exhaust gas cleaning device for an internal combustion engine
US5743084A (en) * 1996-10-16 1998-04-28 Ford Global Technologies, Inc. Method for monitoring the performance of a nox trap
GB9626290D0 (en) * 1996-12-18 1997-02-05 Ford Motor Co Method of de-sulphurating engine exhaust NOx traps

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0580389A1 (en) * 1992-07-24 1994-01-26 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification apparatus for an internal combustion engine
EP0690213A1 (en) * 1994-06-30 1996-01-03 Toyota Jidosha Kabushiki Kaisha Exhaust purification device of internal combustion engine
US5771685A (en) * 1996-10-16 1998-06-30 Ford Global Technologies, Inc. Method for monitoring the performance of a NOx trap
EP0858837A2 (en) * 1997-02-12 1998-08-19 Siemens Aktiengesellschaft Process for regenerating a storage catalyst
US5983627A (en) * 1997-09-02 1999-11-16 Ford Global Technologies, Inc. Closed loop control for desulfating a NOx trap
EP0972927A2 (en) * 1998-07-17 2000-01-19 Denso Corporation Engine exhaust purification system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6973775B2 (en) 2002-08-23 2005-12-13 Umicore Ag & Co. Kg Method for desulfating a nitrogen oxide storage catalyst

Also Published As

Publication number Publication date
FR2785555B1 (en) 2002-08-16
FR2785555A1 (en) 2000-05-12
GB2344772A (en) 2000-06-21
DE19851843A1 (en) 2000-05-11
GB9925996D0 (en) 2000-01-12
DE19851843B4 (en) 2005-06-09

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Legal Events

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

Effective date: 20091104