US20020033017A1 - Emission control system and a method for operating an emission control system - Google Patents

Emission control system and a method for operating an emission control system Download PDF

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Publication number
US20020033017A1
US20020033017A1 US09/885,626 US88562601A US2002033017A1 US 20020033017 A1 US20020033017 A1 US 20020033017A1 US 88562601 A US88562601 A US 88562601A US 2002033017 A1 US2002033017 A1 US 2002033017A1
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United States
Prior art keywords
control system
emission control
exhaust
ash
particle filter
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.)
Abandoned
Application number
US09/885,626
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English (en)
Inventor
Hans Bruggemann
Frank Duvinage
Arno Nolte
Markus Paule
Henning Sander
Joachim Schommers
Karl-Heinz Thiemann
Gunter Wenninger
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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
Assigned to DAIMLERCHRYSLER AG reassignment DAIMLERCHRYSLER AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: THIEMANN, KARL-HEINZ, WENNINGER, GUNTER, SANDER, HENNING, NOLTE, ARNO, PAULE, MARKUS, BRUGGEMANN, HANS, DUVINAGE, FRANK, SCHOMMERS, JOACHIM
Publication of US20020033017A1 publication Critical patent/US20020033017A1/en
Abandoned legal-status Critical Current

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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
    • 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
    • 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
    • F01N3/0821—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with particulate filters
    • 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
    • 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
    • F01N2570/14—Nitrogen oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • 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

Definitions

  • the present invention relates to an emission control system, particularly for an automobile with an internal combustion engine, having a particle filter.
  • the present invention also relates to a method for operating an emission control system.
  • Particle filters are used for diesel-operated vehicles to reduce particle emissions. Particle filters are primarily used to capture soot particles in the exhaust. Soot particles captured in the particle filter can be combusted in special operating phases of the internal combustion engine. However, ash residue in the filter cannot be combusted, which clogs the filter over the life of the vehicle.
  • the following ash components are generally responsible for clogging the filter: motor oil ash residue from the oil consumed by the internal combustion engine; fuel ash residue from fuel consumption; additive ash residue from fuel additives to help regenerate the particle filter; and other residue, e.g., from intake air, motor abrasion or wear, and corrosion of the exhaust system.
  • particle filters must be replaced or cleaned in a washing procedure after a given service interval, e.g., every 80,000 km traveled.
  • the clogging of the filter from ash is a continuous process over the life of the vehicle. With an average oil consumption of 0.2 1/1000 km, up to 180 grams ash or more can develop after 100,000 km.
  • the ash residue in the filter causes increased pressure drop in the particle filter, which increases exhaust counterpressure, increases fuel consumption by 8% or more, and decreases engine power. Since the ash residue cannot be decomposed or regenerated, the particle filter must be either removed and cleaned or replaced after a certain period or after a certain amount of ash has collected in the filter.
  • Ca, Fe, Mg, Zn, P and S develop in the exhaust from oil consumption.
  • Sulfur develops in the exhaust from fuel consumption.
  • Ce, Fe, Ca and Na enter the exhaust from fuel additives.
  • Fe and Al enter the exhaust from abrasion and corrosion.
  • Ash forms from sulfates, oxides and phosphates, e.g., sulfate ash in the form of CaSO 4 and oxide ash in the form of CaO.
  • FIG. 5 schematically illustrates a conventional emission control system with oxidation catalyst 1 and particle filter 2 .
  • the exhaust coming from the engine contains sulfur compounds, e.g., 98% SO 2 , 2% SO 3 and Ca, Fe, Mg, Zn and P.
  • sulfur compounds e.g., 98% SO 2 , 2% SO 3 and Ca
  • Fe Fe
  • Mg Zn
  • P sulfur compounds
  • sulfate forms in oxidation catalyst 1 , where SO 2 and SO 3 are converted into SO 4 .
  • Ash such as CaSO 4 , ZNSO 4 , MgSO 4 , CaO, FeO, etc., develops downstream from oxidation catalyst 1 . This ash collects in particle filter 2 and clogs it.
  • the present invention provides an emission control system and a method to operate an emission control system to reduce the clogging of the particle filter by ash residue.
  • an emission control system particularly for a motor vehicle having an internal combustion engine, is provided with a particle filter, and an arrangement is provided upstream from the particle filter to prevent ash-forming compounds of the sulfur in the exhaust from developing.
  • the present invention is based on the principle of preventing ash from developing in advance of the particle filter and transforming the compounds responsible for the ash formation into a gaseous state or keeping them in a gaseous state so that they can flow through the particle filter without collecting.
  • the objective is to avoid primarily sulfates, which represent a major component of the ash.
  • the sulfur in the exhaust which is primarily responsible for the formation of ash, is converted into compounds that do not form ash in order to prevent sulfates from forming in the exhaust.
  • the arrangement includes an SO x collector.
  • the sulfur contained in the exhaust may be stored to substantially reduce the amount of ash-forming sulfur compounds in the exhaust.
  • the storage capacity of the SO x trap When the storage capacity of the SO x trap is exhausted, it may be regenerated in a regeneration phase.
  • the stored sulfur is released in the form of gaseous compounds that may pass through the particle filter.
  • the arrangement may be combined with a NO x collector and/or an oxidation catalyst.
  • the present invention also provides a method to operate an emission control system so that no ash-forming compounds develop from the sulfur contained in the exhaust.
  • This arrangement effectively prevents the filter from clogging due to ash.
  • the service interval for cleaning or replacing a particle filter may be greatly increased with the same filter volume.
  • the sulfur oxides in the exhaust such as SO 2 and SO 3 , are stored in the sulfur collector on a storage metal such as barium (Ba) .
  • BaSO 4 develops in the sulfur collector.
  • This arrangement prevents the formation of sulfate in the exhaust downstream from the sulfur collector.
  • the BaSO 4 stored in the sulfur collector is converted to SO 2 , H 2 S and COS. There is little formation of SO 4 due to the low-oxygen or rich exhaust composition.
  • the released sulfur compounds are gaseous and may therefore pass through the particle filter.
  • the engine may be operated with a lean exhaust composition.
  • the exhaust temperature in the regeneration phase may be raised to 550-700° C.
  • FIG. 1 is a schematic view of a first example embodiment of the emission control system according to the present invention.
  • FIG. 2 is a schematic view of a second example embodiment of the emission control system according to the present invention.
  • FIG. 3 is a schematic view of a third example embodiment of the emission control system according to the present invention.
  • FIG. 4 is a schematic view of an exhaust system of an automobile with an internal combustion engine having an emission control system according to the present invention.
  • FIG. 5 is a schematic view of a conventional emission control system.
  • FIG. 1 schematically illustrates an emission control system according to the present invention with a SO x collector 10 and particle filter 12 .
  • the exhaust passes via a pipe section 14 from an internal combustion engine to SO x collector 10 .
  • the direction of flow in the emission control system is indicated by arrows.
  • the sulfur compounds in the exhaust coming from the motor in pipe section 14 are approximately 98% SO 2 and approximately 2% SO 3 .
  • Ca, Fe, Mg, Zn and P are also contained in the exhaust.
  • SO x collector 10 stores the sulfur oxides SO 2 , SO 3 on a storage metal such as barium (Ba) when the exhaust composition is lean, a so-called hyperstoichiometric exhaust composition with ⁇ >1, in the form of BaSO 4 .
  • the formation of sulfate in the exhaust and subsequent formation of sulfate ash are accordingly reduced.
  • the ash-forming components in the exhaust either react to form oxide ash or remain in a gaseous state.
  • Ca, Fe, Mg, Zn and P are present in pipe section 16 and particle filter 12 as gaseous compounds and may pass through them, which reduces the deposition of ash in the particle filter 12 .
  • oxide ash forms instead of sulfate ash the amount of ash in particle filter 12 may be reduced, since oxide ash has a lower molar mass than sulfate ash.
  • the internal combustion engine creating the exhaust may be operated with fuel containing less sulfur, e.g., less than 10 ppm, so that there will be a very small base load of sulfur in the exhaust. Even when sulfur-free fuel is used, SO x collector 10 is useful since the exhaust in pipe section 14 contains sulfur components from consumed motor oil.
  • a regeneration phase according to the present invention is started.
  • the exhaust temperature is increased to 550-700° C. to regenerate or desulfurize the collector, and the internal combustion engine is switched to hypostoichiometric operation or rich operation ( ⁇ 1).
  • SO x collector 10 releases the sulfur, stored as BaSO 4 in the form of gaseous sulfur compounds such as SO 3 , SO 2 , H 2 S or COS. There is little SO 4 formation due to the low-oxygen or rich air/fuel ratio.
  • the released sulfur compounds may pass through particle filter 12 in a gaseous state.
  • the internal combustion engine may be operated with a hyperstoichiometric or lean exhaust composition.
  • FIG. 2 schematically illustrates another example embodiment of the emission control system according to the present invention in which, in contrast to the emission control system illustrated in FIG. 1, SO x collector 10 is combined with NO x collector 20 .
  • FIG. 3 illustrates a third example embodiment of the emission control system according to the present invention in which, in contrast to the emission control system illustrated in FIG. 1, SO x collector 10 is combined with NO x collector 20 and an oxidation catalyst 22 .
  • the emission control systems illustrated in FIGS. 2 and 3 are operated in the same manner as that illustrated in FIG. 1, i.e., with normal operation phases having lean exhaust composition to store the sulfur in the exhaust in the form of sulfate, and, after the storage capacity of SO x collector 10 is exhausted, with regeneration phases having a rich exhaust composition to release the stored sulfur in the form of gaseous compounds.
  • FIG. 4 schematically illustrates a diesel engine 24 that includes an emission purification system according to the present invention.
  • Diesel engine 24 is supplied with diesel fuel having a reduced sulfur content from a fuel tank 26 .
  • the fuel is injected with a so-called common-rail injection system 28 .
  • Diesel engine 24 is provided with an exhaust turbocharger 30 that supplies compressed intake air via charge-air cooler 32 to intake manifold 34 of diesel engine 24 .
  • exhaust return line 38 Between exhaust manifold 36 and intake manifold 34 is an exhaust return line 38 that may be opened and closed by controllable exhaust return valve 40 .
  • the exhaust from diesel engine 24 passes via the exhaust turbine of exhaust turbocharger 30 to a SO x collector 42 .
  • SO x collector 42 is combined with a NO x collector and an oxidation catalyst.
  • Downstream from SO x collector 42 is a particle filter 44 .
  • the particle filter 44 is followed by an underbody catalyst that further reduces pollutant emissions. Downstream from the underbody catalyst is a muffler to reduce noise.
  • Controller 50 controls common rail injection system 28 and exhaust turbocharger 30 and may accordingly set a rich or lean exhaust composition.
  • Exhaust return valve 40 is also controlled by controller 50 .
  • Sensors 52 are provided at several locations in the exhaust system that detect the current exhaust composition and send it to the controller 50 .
  • controller 50 By analysis of the sensor signals in controller 50 , the remaining storage capacity of SO x collector 42 , for example, may be inferred. If controller 50 determines that SO x collector 42 is full, a regeneration phase is started. After SO x collector 42 is regenerated, the controller 50 switches back to storage operation.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Exhaust Gas After Treatment (AREA)
US09/885,626 2000-06-21 2001-06-20 Emission control system and a method for operating an emission control system Abandoned US20020033017A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10029513.4 2000-06-21
DE10029513A DE10029513B4 (de) 2000-06-21 2000-06-21 Verfahren und Vorrichtung zur Reduzierung von Ascherückständen in einem Partikelfilter

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020081238A1 (en) * 2000-08-15 2002-06-27 Frank Duvinage Exhaust-gas cleaning unit with particle filter and nitrogen oxygen store, and operating method therefor
US20020148218A1 (en) * 1999-05-05 2002-10-17 Andreas Hertzberg Exhaust emission control system having a nitrogen oxide adsorber and method for desulfating the nitrogen oxide adsorber
US20040003588A1 (en) * 2002-07-02 2004-01-08 Toyota Jidosha Kabushiki Kaisha Device for purifying exhaust gas for engine
US20040211159A1 (en) * 2002-08-12 2004-10-28 Toshihiro Hamahata Exhaust gas cleaner
US20050138916A1 (en) * 2003-12-29 2005-06-30 Bonadies Joseph V. Exhaust system and methods of reducing contaminants in an exhaust stream
US20060130464A1 (en) * 2004-12-20 2006-06-22 Detroit Diesel Corporation Method and system for controlling fuel included within exhaust gases to facilitate regeneration of a particulate filter
US20060130459A1 (en) * 2004-12-21 2006-06-22 Detroit Diesel Corporation Method and system for controlling temperatures of exhaust gases emitted from internal combustion engine to facilitate regeneration of a particulate filter
US20060130468A1 (en) * 2004-12-20 2006-06-22 Detroit Diesel Corporation Method and system for determining temperature set points in systems having particulate filters with regeneration capabilities
US20060130465A1 (en) * 2004-12-22 2006-06-22 Detroit Diesel Corporation Method and system for controlling exhaust gases emitted from an internal combustion engine
US7076945B2 (en) 2004-12-22 2006-07-18 Detroit Diesel Corporation Method and system for controlling temperatures of exhaust gases emitted from an internal combustion engine to facilitate regeneration of a particulate filter
US20070193257A1 (en) * 2003-09-16 2007-08-23 Deutz Aktiengesellschaft Method and device for the counterpressure-safe separation out and elimination of particles from fluid streams
US20080078236A1 (en) * 2006-10-03 2008-04-03 Rahul Mital Adaptive learning method for clean particulate filter pressure drop
US7434388B2 (en) 2004-12-22 2008-10-14 Detroit Diesel Corporation Method and system for regeneration of a particulate filter
US20090064403A1 (en) * 2004-03-02 2009-03-12 Michael Lawrence Wolfe Machine and method for proactive sensing and intervention to preclude swimmer entrapment, entanglement or evisceration
US20090183493A1 (en) * 2006-06-22 2009-07-23 Toyota Jidosha Kabushiki Kaisha Exhaust Purification System of Internal Combustion Engine
US7673448B2 (en) 2005-08-05 2010-03-09 Basf Catalysts Llc Diesel exhaust article and catalyst compositions therefor
US20100257847A1 (en) * 2007-07-27 2010-10-14 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
US20100269493A1 (en) * 2006-10-20 2010-10-28 Ford Global Technologies, Llc Exhaust system for an engine
CN102105210A (zh) * 2008-07-30 2011-06-22 排放技术有限公司 用于商用车辆的柴油发动机的排气净化***
US20150113949A1 (en) * 2013-10-28 2015-04-30 Cummins Inc. Selectively trapping and storing so3 in an exhaust gas effluent
US11268413B2 (en) * 2019-05-07 2022-03-08 Ford Global Technologies, Llc Method and system for gasoline particulate filter

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10234340B4 (de) * 2002-03-27 2009-08-20 Volkswagen Ag Verfahren zur Bestimmung des Beladungszustandes eines Partikelfilters einer Brennkraftmaschine
DE10234791A1 (de) * 2002-07-31 2004-02-19 Deutz Ag Aschebeladungsermittlung für Partikelfilter
DE102004036562A1 (de) * 2004-07-28 2006-03-23 Bayerische Motoren Werke Ag Saubere Niederdruckabgasrückführung
DE102012017312A1 (de) * 2012-09-03 2014-03-06 Man Diesel & Turbo Se Brennkraftmaschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6735940B2 (en) * 2002-07-11 2004-05-18 Fleetguard, Inc. Adsorber aftertreatment system having dual adsorbers
US6758036B1 (en) * 2000-10-27 2004-07-06 Delphi Technologies, Inc. Method for sulfur protection of NOx adsorber

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4588569A (en) * 1985-02-21 1986-05-13 Intermountain Research & Development Corporation Dry injection flue gas desulfurization process using absorptive soda ash sorbent
US4960445A (en) * 1985-08-12 1990-10-02 Research-Cottrell Process for removing SO2 and fly ash from flue gas
JP3656298B2 (ja) * 1995-09-11 2005-06-08 トヨタ自動車株式会社 内燃機関の排気浄化方法
JP3381489B2 (ja) * 1995-11-08 2003-02-24 トヨタ自動車株式会社 ディーゼル機関の排気ガス浄化触媒及び浄化装置
DE19855093A1 (de) * 1998-11-28 2000-05-31 Volkswagen Ag Vorrichtung zur Reinigung des Abgases einer Brennkraftmaschine
FR2787137B1 (fr) * 1998-12-14 2001-02-23 Ecia Equip Composants Ind Auto Dispositif de depollution des gaz d'echappement
DE19955324A1 (de) * 1999-11-17 2001-05-23 Volkswagen Ag Vorrichtung und Verfahren zum Reduzieren von schädlichen Bestandteilen im Abgas einer Brennkraftmaschine, insbesondere einer Diesel-Brennkraftmaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6758036B1 (en) * 2000-10-27 2004-07-06 Delphi Technologies, Inc. Method for sulfur protection of NOx adsorber
US6735940B2 (en) * 2002-07-11 2004-05-18 Fleetguard, Inc. Adsorber aftertreatment system having dual adsorbers

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6843052B2 (en) * 1999-05-05 2005-01-18 Daimlerchrysler Ag Exhaust emission control system having a nitrogen oxide adsorber and method for desulfating the nitrogen oxide adsorber
US20020148218A1 (en) * 1999-05-05 2002-10-17 Andreas Hertzberg Exhaust emission control system having a nitrogen oxide adsorber and method for desulfating the nitrogen oxide adsorber
US20020081238A1 (en) * 2000-08-15 2002-06-27 Frank Duvinage Exhaust-gas cleaning unit with particle filter and nitrogen oxygen store, and operating method therefor
US7040087B2 (en) * 2002-07-02 2006-05-09 Toyota Jidosha Kabushiki Kaisha Device for purifying exhaust gas for engine
US20040003588A1 (en) * 2002-07-02 2004-01-08 Toyota Jidosha Kabushiki Kaisha Device for purifying exhaust gas for engine
US7264642B2 (en) * 2002-08-12 2007-09-04 Bosch Automotive Systems Corporation Exhaust gas cleaning apparatus
US20040211159A1 (en) * 2002-08-12 2004-10-28 Toshihiro Hamahata Exhaust gas cleaner
US8087238B2 (en) 2003-09-16 2012-01-03 Deutz Ag Method and device for the counterpressure-safe separation out and elimination of particles from fluid streams
US20070193257A1 (en) * 2003-09-16 2007-08-23 Deutz Aktiengesellschaft Method and device for the counterpressure-safe separation out and elimination of particles from fluid streams
US7188469B2 (en) * 2003-12-29 2007-03-13 Delphi Technologies, Inc. Exhaust system and methods of reducing contaminants in an exhaust stream
US20050138916A1 (en) * 2003-12-29 2005-06-30 Bonadies Joseph V. Exhaust system and methods of reducing contaminants in an exhaust stream
US20090064403A1 (en) * 2004-03-02 2009-03-12 Michael Lawrence Wolfe Machine and method for proactive sensing and intervention to preclude swimmer entrapment, entanglement or evisceration
US7210286B2 (en) 2004-12-20 2007-05-01 Detroit Diesel Corporation Method and system for controlling fuel included within exhaust gases to facilitate regeneration of a particulate filter
US20060130464A1 (en) * 2004-12-20 2006-06-22 Detroit Diesel Corporation Method and system for controlling fuel included within exhaust gases to facilitate regeneration of a particulate filter
US7441403B2 (en) 2004-12-20 2008-10-28 Detroit Diesel Corporation Method and system for determining temperature set points in systems having particulate filters with regeneration capabilities
US20060130468A1 (en) * 2004-12-20 2006-06-22 Detroit Diesel Corporation Method and system for determining temperature set points in systems having particulate filters with regeneration capabilities
US20060130459A1 (en) * 2004-12-21 2006-06-22 Detroit Diesel Corporation Method and system for controlling temperatures of exhaust gases emitted from internal combustion engine to facilitate regeneration of a particulate filter
US7461504B2 (en) 2004-12-21 2008-12-09 Detroit Diesel Corporation Method and system for controlling temperatures of exhaust gases emitted from internal combustion engine to facilitate regeneration of a particulate filter
US20060130465A1 (en) * 2004-12-22 2006-06-22 Detroit Diesel Corporation Method and system for controlling exhaust gases emitted from an internal combustion engine
US7322183B2 (en) 2004-12-22 2008-01-29 Detroit Diesel Corporation Method and system for controlling temperatures of exhaust gases emitted from an internal combustion engine to facilitate regeneration of a particulate filter
US7434388B2 (en) 2004-12-22 2008-10-14 Detroit Diesel Corporation Method and system for regeneration of a particulate filter
US7076945B2 (en) 2004-12-22 2006-07-18 Detroit Diesel Corporation Method and system for controlling temperatures of exhaust gases emitted from an internal combustion engine to facilitate regeneration of a particulate filter
US20060218897A1 (en) * 2004-12-22 2006-10-05 Detroit Diesel Corporation Method and system for controlling temperatures of exhaust gases emitted from an internal combustion engine to facilitate regeneration of a particulate filter
US7673448B2 (en) 2005-08-05 2010-03-09 Basf Catalysts Llc Diesel exhaust article and catalyst compositions therefor
US20090183493A1 (en) * 2006-06-22 2009-07-23 Toyota Jidosha Kabushiki Kaisha Exhaust Purification System of Internal Combustion Engine
US8122706B2 (en) * 2006-06-22 2012-02-28 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
US20080078236A1 (en) * 2006-10-03 2008-04-03 Rahul Mital Adaptive learning method for clean particulate filter pressure drop
US7758676B2 (en) * 2006-10-03 2010-07-20 Gm Global Technology Operations, Inc. Adaptive learning method for clean particulate filter pressure drop
US20100269493A1 (en) * 2006-10-20 2010-10-28 Ford Global Technologies, Llc Exhaust system for an engine
US20100257847A1 (en) * 2007-07-27 2010-10-14 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
US8276369B2 (en) * 2007-07-27 2012-10-02 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
CN102105210A (zh) * 2008-07-30 2011-06-22 排放技术有限公司 用于商用车辆的柴油发动机的排气净化***
US20150113949A1 (en) * 2013-10-28 2015-04-30 Cummins Inc. Selectively trapping and storing so3 in an exhaust gas effluent
US9181888B2 (en) * 2013-10-28 2015-11-10 Cummins Inc. Selectively trapping and storing SO3 in an exhaust gas effluent
CN105658308A (zh) * 2013-10-28 2016-06-08 卡明斯公司 选择性地捕获和储存排出气体流出物中的so3
US11268413B2 (en) * 2019-05-07 2022-03-08 Ford Global Technologies, Llc Method and system for gasoline particulate filter

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