ZA200708966B - Method and apparatus for the purification of exhaust gas from a compression ignition engine - Google Patents

Method and apparatus for the purification of exhaust gas from a compression ignition engine Download PDF

Info

Publication number
ZA200708966B
ZA200708966B ZA200708966A ZA200708966A ZA200708966B ZA 200708966 B ZA200708966 B ZA 200708966B ZA 200708966 A ZA200708966 A ZA 200708966A ZA 200708966 A ZA200708966 A ZA 200708966A ZA 200708966 B ZA200708966 B ZA 200708966B
Authority
ZA
South Africa
Prior art keywords
catalyst
filter
exhaust gas
platinum
group
Prior art date
Application number
ZA200708966A
Other languages
English (en)
Inventor
Dahl Soeren
Johansen Keld
Pehrson Soeren
Mogensen Gurli
Original Assignee
Haldor Topsoe As
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 Haldor Topsoe As filed Critical Haldor Topsoe As
Publication of ZA200708966B publication Critical patent/ZA200708966B/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • F01N3/18Exhaust 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/92Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404Removing only nitrogen compounds
    • B01D53/9409Nitrogen oxides
    • B01D53/9413Processes characterised by a specific catalyst
    • B01D53/9418Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/92Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56Platinum group metals
    • B01J23/63Platinum group metals with rare earths or actinides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/0201Impregnation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/20Reductants
    • B01D2251/204Carbon monoxide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/20Reductants
    • B01D2251/208Hydrocarbons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/10Noble metals or compounds thereof
    • B01D2255/102Platinum group metals
    • B01D2255/1023Palladium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/206Rare earth metals
    • B01D2255/2065Cerium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/40Mixed oxides
    • B01D2255/407Zr-Ce mixed oxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/90Physical characteristics of catalysts
    • B01D2255/915Catalyst supported on particulate filters
    • B01D2255/9155Wall flow filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/01Engine exhaust gases
    • B01D2258/012Diesel engines and lean burn gasoline engines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56Platinum group metals
    • B01J23/62Platinum group metals with gallium, indium, thallium, germanium, tin or lead
    • B01J23/622Platinum group metals with gallium, indium, thallium, germanium, tin or lead with germanium, tin or lead
    • B01J23/626Platinum group metals with gallium, indium, thallium, germanium, tin or lead with germanium, tin or lead with tin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56Platinum group metals
    • B01J23/64Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/656Manganese, technetium or rhenium
    • B01J23/6562Manganese
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/89Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • B01J23/8906Iron and noble metals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/50Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Materials 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)
  • Catalysts (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Processes For Solid Components From Exhaust (AREA)
ZA200708966A 2006-10-23 2007-10-18 Method and apparatus for the purification of exhaust gas from a compression ignition engine ZA200708966B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DKPA200601364 2006-10-23

Publications (1)

Publication Number Publication Date
ZA200708966B true ZA200708966B (en) 2008-10-29

Family

ID=39047779

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA200708966A ZA200708966B (en) 2006-10-23 2007-10-18 Method and apparatus for the purification of exhaust gas from a compression ignition engine

Country Status (10)

Country Link
US (1) US8603941B2 (pl)
EP (1) EP1916029B1 (pl)
JP (1) JP5759090B2 (pl)
KR (1) KR101477735B1 (pl)
CN (2) CN101169062A (pl)
CA (1) CA2607367C (pl)
ES (1) ES2475890T3 (pl)
PL (1) PL1916029T3 (pl)
RU (1) RU2448762C2 (pl)
ZA (1) ZA200708966B (pl)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2335809A1 (de) * 2009-12-21 2011-06-22 Bernhard Kahlert Verfahren zum Reinigen eines Dieselabgases
JP5884702B2 (ja) * 2012-02-01 2016-03-15 株式会社デンソー 内燃機関の排出ガス浄化装置
US8790609B1 (en) * 2013-06-27 2014-07-29 Siemens Energy, Inc. Method of yellow plume elimination in gas turbine exhaust
DE102014112361A1 (de) 2013-08-28 2015-03-05 Johnson Matthey Plc Co-slip-katalysator und verfahren zur verwendung
JP6594163B2 (ja) * 2015-10-30 2019-10-23 株式会社キャタラー 排ガス浄化装置
DE102016113382A1 (de) * 2016-07-20 2018-01-25 Man Diesel & Turbo Se Brennkraftmaschine und Verfahren zum Betreiben derselben
EP3296009B1 (de) * 2016-09-20 2019-03-27 Umicore AG & Co. KG Partikelfilter mit scr-aktiver beschichtung
CN111315970B (zh) * 2017-11-10 2023-02-03 巴斯夫公司 氨氧化减少的催化烟灰过滤器
CN109372612A (zh) * 2018-11-06 2019-02-22 广州航海学院 一种柴油机尾气处理装置和方法

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60232253A (ja) * 1984-04-27 1985-11-18 Toyota Motor Corp 排気ガス浄化用モノリス触媒
JPS63116744A (ja) * 1986-11-05 1988-05-21 Matsushita Electric Ind Co Ltd 排ガス浄化用触媒およびその調製方法
JPH0615040B2 (ja) * 1987-07-06 1994-03-02 株式会社豊田中央研究所 排気浄化用触媒
EP0315896B1 (en) 1987-11-07 1995-03-08 Nippon Shokubai Kagaku Kogyo Co., Ltd Diesel engine exhaust gas purification catalyst
JPH0214744A (ja) 1988-07-01 1990-01-18 Nippon Shokubai Kagaku Kogyo Co Ltd 排ガス浄化用触媒
US4902487A (en) * 1988-05-13 1990-02-20 Johnson Matthey, Inc. Treatment of diesel exhaust gases
JPH01307446A (ja) * 1988-06-06 1989-12-12 Matsushita Electric Ind Co Ltd 排気ガス浄化触媒体
JPH03196840A (ja) * 1989-12-27 1991-08-28 Nippon Shokubai Kagaku Kogyo Co Ltd 排気ガス浄化用触媒
US6245307B1 (en) * 1994-06-17 2001-06-12 Ict Co., Ltd. Catalyst for purifying exhaust gas from lean burn engine and method for purification
US5911961A (en) * 1994-12-06 1999-06-15 Ict Co., Ltd. Catalyst for purification of diesel engine exhaust gas
US6921738B2 (en) * 1996-12-06 2005-07-26 Engelhard Corporation Catalytic metal plate
GB9705010D0 (en) * 1997-03-10 1997-04-30 Johnson Matthey Plc Improvements in emissions control systems
DE19714536A1 (de) * 1997-04-09 1998-10-15 Degussa Autoabgaskatalysator
JP3314301B2 (ja) * 1997-12-26 2002-08-12 現代自動車株式会社 パラジウム(Pd)三元触媒の製造方法
WO2000029726A1 (en) * 1998-11-13 2000-05-25 Engelhard Corporation Catalyst and method for reducing exhaust gas emissions
JP2002530175A (ja) * 1998-11-20 2002-09-17 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ コードレス走査ヘッドの充電器を備える超音波診断イメージングシステム
JP3866477B2 (ja) * 2000-03-23 2007-01-10 日産ディーゼル工業株式会社 ディーゼルエンジンの排気浄化装置
US20040043897A1 (en) * 2000-09-18 2004-03-04 Nakatsuji Tadao Catalyst and method for the catalytic reduction of nitrogen oxides
DE10054877A1 (de) * 2000-11-06 2002-05-29 Omg Ag & Co Kg Abgasreinigungsanlage für die selektive katalytische Reduktion von Stickoxiden unter mageren Abgasbedingungen und Verfahren zur Abgasreinigung
GB0028198D0 (en) * 2000-11-20 2001-01-03 Johnson Matthey Plc High temperature nox-trap component
RU2192307C1 (ru) * 2001-04-05 2002-11-10 Институт катализа им. Г.К.Борескова СО РАН Катализатор, носитель катализатора, способы их получения (варианты) и способ очистки отходящих газов от оксидов азота
KR100410942B1 (ko) * 2001-07-28 2003-12-18 현대자동차주식회사 다공성 팔라듐 삼원촉매의 제조방법
US6756338B2 (en) * 2001-09-19 2004-06-29 Johnson Matthey Public Limited Company Lean NOx trap/conversion catalyst
JP2003135970A (ja) * 2001-11-01 2003-05-13 Nissan Motor Co Ltd 排気ガス浄化用触媒
JP3722060B2 (ja) * 2001-12-13 2005-11-30 日産自動車株式会社 触媒体及び触媒体の製造方法並びにその触媒体を用いた排気ガス浄化用触媒
KR100461112B1 (ko) * 2002-05-28 2004-12-13 현대자동차주식회사 저팔라듐 함량의 고성능 팔라듐-로듐 삼원촉매의 제조방법
AU2003269152A1 (en) * 2002-09-13 2004-04-30 Johnson Matthey Public Limited Company Process for treating compression ignition engine exhaust gas
US6946013B2 (en) * 2002-10-28 2005-09-20 Geo2 Technologies, Inc. Ceramic exhaust filter
DE10308287B4 (de) * 2003-02-26 2006-11-30 Umicore Ag & Co. Kg Verfahren zur Abgasreinigung
DE10315593B4 (de) * 2003-04-05 2005-12-22 Daimlerchrysler Ag Abgasnachbehandlungseinrichtung und -verfahren
RU2362613C2 (ru) * 2003-04-17 2009-07-27 Джонсон Мэттей Паблик Лимитед Компани Выхлопная система для двигателей внутреннего сгорания, двигатель внутреннего сгорания и транспортное средство на его основе
DE602004005107T2 (de) * 2003-07-02 2007-06-28 Haldor Topsoe A/S Verfahren und Filter zur katalytischen Behandlung von Dieselabgasen
JP4236543B2 (ja) * 2003-09-08 2009-03-11 本田技研工業株式会社 窒素酸化物の接触分解のための触媒と方法
JP4062231B2 (ja) * 2003-10-16 2008-03-19 トヨタ自動車株式会社 内燃機関の排気浄化装置
US7490464B2 (en) * 2003-11-04 2009-02-17 Basf Catalysts Llc Emissions treatment system with NSR and SCR catalysts
JP4768636B2 (ja) * 2004-02-04 2011-09-07 バッテル メモリアル インスティチュート 硫黄酸化物吸着剤および放出の制御
US7566424B2 (en) * 2004-07-23 2009-07-28 Mazda Motor Corporation Exhaust gas purification catalyst
JP2006068728A (ja) * 2004-08-03 2006-03-16 Mazda Motor Corp 排気ガス浄化触媒
GB0422549D0 (en) 2004-10-12 2004-11-10 Johnson Matthey Plc Method of decomposing nitrogen dioxide
JP2006159069A (ja) * 2004-12-06 2006-06-22 Nissan Motor Co Ltd 排気ガス浄化システム
US7062904B1 (en) * 2005-02-16 2006-06-20 Eaton Corporation Integrated NOx and PM reduction devices for the treatment of emissions from internal combustion engines
DE102005027063A1 (de) 2005-06-11 2006-12-14 Man Nutzfahrzeuge Ag Vorrichtung und Verfahren zur Nachbehandlung sauerstoffhaltiger Abgase von Brennkraftmaschinen, insbesondere Fahrzeug-Dieselmotoren

Also Published As

Publication number Publication date
CN103437864A (zh) 2013-12-11
JP5759090B2 (ja) 2015-08-05
JP2008105027A (ja) 2008-05-08
ES2475890T3 (es) 2014-07-11
KR20080036537A (ko) 2008-04-28
US20080152565A1 (en) 2008-06-26
CA2607367C (en) 2015-03-31
RU2448762C2 (ru) 2012-04-27
EP1916029B1 (en) 2014-06-04
RU2007138864A (ru) 2009-04-27
CA2607367A1 (en) 2008-04-23
EP1916029A1 (en) 2008-04-30
CN101169062A (zh) 2008-04-30
PL1916029T3 (pl) 2014-11-28
CN103437864B (zh) 2016-12-28
KR101477735B1 (ko) 2014-12-30
US8603941B2 (en) 2013-12-10

Similar Documents

Publication Publication Date Title
US6813884B2 (en) Method of treating diesel exhaust gases
CA2607367C (en) Method and apparatus for the purification of exhaust gas from a compression ignition engine
JP4612622B2 (ja) リーン燃焼内燃機関の排ガスから窒素酸化物を除去する方法およびこのための排ガス浄化装置
US8858904B2 (en) Catalyzed soot filter
JP5988493B2 (ja) NOx貯蔵触媒と触媒媒煙フィルタを含む排気システム
US8327625B2 (en) Method for regenerating soot filters in the exhaust gas system of a lean mix engine, and exhaust gas system therefor
JP2003521363A (ja) 排気ガス放出を減少させる触媒および方法
JP2016503725A (ja) 窒素酸化物を還元するための触媒
US10047653B2 (en) Regeneration method for exhaust-gas aftertreatment systems
US11859526B2 (en) Exhaust gas purification system for a gasoline engine
US11547969B2 (en) Exhaust gas purification system for a gasoline engine
JP7434282B2 (ja) 窒素酸化物還元用触媒
WO2020079136A1 (en) Exhaust gas purification system for a gasoline engine
RU2635092C2 (ru) Каталитическая композиция
WO2003037507A1 (en) Exhaust line for an internal combustion engine
JP4294097B2 (ja) リーン−バーン内燃機関用の排気制御機構
RU2575717C2 (ru) ВЫХЛОПНАЯ СИСТЕМА, СОДЕРЖАЩАЯ КАТАЛИЗАТОР НАКОПЛЕНИЯ NOx И КАТАЛИЗИРУЕМЫЙ ФИЛЬТР САЖИ