[go: up one dir, main page]

MX2009002957A - Catalizadores para reducir nox en una corriente de gas de escape y metodos de preparacion. - Google Patents

Catalizadores para reducir nox en una corriente de gas de escape y metodos de preparacion.

Info

Publication number
MX2009002957A
MX2009002957A MX2009002957A MX2009002957A MX2009002957A MX 2009002957 A MX2009002957 A MX 2009002957A MX 2009002957 A MX2009002957 A MX 2009002957A MX 2009002957 A MX2009002957 A MX 2009002957A MX 2009002957 A MX2009002957 A MX 2009002957A
Authority
MX
Mexico
Prior art keywords
catalysts
current
exhaust gas
preparation methods
reduce nox
Prior art date
Application number
MX2009002957A
Other languages
English (en)
Inventor
Christopher R Castellano
Gerald Stephen Koermer
Howard Furbeck
Ahmad Moini
Original Assignee
Basf Catalysts Llc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39125085&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX2009002957(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Basf Catalysts Llc filed Critical Basf Catalysts Llc
Publication of MX2009002957A publication Critical patent/MX2009002957A/es

Links

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
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/48—Silver or gold
    • B01J23/50—Silver
    • 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
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/391—Physical properties of the active metal ingredient
    • B01J35/393—Metal or metal oxide crystallite size
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/208—Hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/104—Silver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/915—Catalyst supported on particulate filters
    • B01D2255/9155—Wall flow filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2235/00—Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties
    • B01J2235/15—X-ray diffraction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2235/00—Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties
    • B01J2235/30—Scanning electron microscopy; Transmission electron microscopy
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24149—Honeycomb-like

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (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 Treatment By Means Of Catalyst (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

Se describen catalizadores, sistemas y métodos para reducir emisiones de NOX de un motor de combustión interna. En una modalidad, se proporciona un sistema de tratamiento de emisiones de una corriente de escape que tiene un catalizador que comprende plata en un soporte de alúmina en partículas, la plata tiene un diámetro inferior a aproximadamente 20 nm. Se describen métodos de fabricación de catalizadores en donde plata iónica es impregnada en partículas de alúmina hidroxilada.
MX2009002957A 2006-09-20 2007-09-20 Catalizadores para reducir nox en una corriente de gas de escape y metodos de preparacion. MX2009002957A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US82626706P 2006-09-20 2006-09-20
US11/857,896 US8173574B2 (en) 2006-09-20 2007-09-19 Catalysts to reduce NOx in an exhaust gas stream and methods of preparation
PCT/US2007/079024 WO2008036813A2 (en) 2006-09-20 2007-09-20 Catalysts to reduce nox in an exhaust gas stream and methods of preparation

Publications (1)

Publication Number Publication Date
MX2009002957A true MX2009002957A (es) 2009-04-16

Family

ID=39125085

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2009002957A MX2009002957A (es) 2006-09-20 2007-09-20 Catalizadores para reducir nox en una corriente de gas de escape y metodos de preparacion.

Country Status (12)

Country Link
US (1) US8173574B2 (es)
EP (1) EP2069053B1 (es)
JP (1) JP5734565B2 (es)
KR (2) KR20140139625A (es)
CN (1) CN104667915A (es)
BR (1) BRPI0717414A2 (es)
CA (1) CA2664403C (es)
ES (1) ES2391991T3 (es)
MX (1) MX2009002957A (es)
MY (1) MY151808A (es)
RU (1) RU2009114734A (es)
WO (1) WO2008036813A2 (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7759280B2 (en) * 2006-09-20 2010-07-20 Basf Corporation Catalysts, systems and methods to reduce NOX in an exhaust gas stream
US7943548B2 (en) * 2006-09-20 2011-05-17 Basf Corporation Catalysts to reduce NOx in an exhaust gas stream and methods of preparation
DE202007016125U1 (de) * 2007-11-19 2009-05-28 Burkhardt, Roswitha Rußpartikelfilter mit variabel gesteuerter Rußabbrennung
WO2010088327A2 (en) * 2009-01-30 2010-08-05 Basf Catalysts Llc Catalyst for producing ammonia from hydrocarbon and nitrogen oxides
US20100251700A1 (en) * 2009-04-02 2010-10-07 Basf Catalysts Llc HC-SCR System for Lean Burn Engines
US8178064B2 (en) * 2009-05-11 2012-05-15 Basf Corporation Treatment of power utilities exhaust
JP5543150B2 (ja) * 2009-08-07 2014-07-09 エヌ・イーケムキャット株式会社 芳香族ニトロ化合物の選択的水素化触媒、その製造方法および再生方法並びにこれを用いた芳香族ニトロ化化合物の選択的水素化方法
US8476187B2 (en) * 2010-01-06 2013-07-02 General Electric Company Process for preparing catalyst powder
FR2967921A1 (fr) 2010-11-29 2012-06-01 Peugeot Citroen Automobiles Sa Procede de fabrication d'une composition catalytique de reduction selective des oxydes d'azote et vehicule comprenant une telle composition catalytique
US20120144802A1 (en) * 2010-12-10 2012-06-14 Driscoll James J Exhaust system having doc regeneration strategy
KR20120082697A (ko) 2011-01-14 2012-07-24 삼성전자주식회사 Ｃｏ2 개질용 촉매 조성물
EP2676719A4 (en) * 2011-02-14 2015-01-14 Toyota Motor Co Ltd EXHAUST GAS EXTRACTION DEVICE FOR A COMBUSTION ENGINE
GB201111553D0 (en) * 2011-05-20 2011-08-24 Johnson Matthey Plc NOx reduction catalyst
GB201111180D0 (en) * 2011-05-20 2011-08-17 Johnson Matthey Plc System and method for generating NO2
KR20140122117A (ko) 2013-04-09 2014-10-17 삼성전자주식회사 탄화수소의 이산화탄소 개질용 촉매
JP6365340B2 (ja) 2015-02-23 2018-08-01 株式会社Ｓｏｋｅｎ 排ガス浄化触媒
MX393829B (es) * 2015-06-12 2025-03-24 Basf Mobile Emissions Catalysts Llc Sistema de tratamiento de gases de escape.
GB2594211B (en) 2019-01-18 2023-05-31 Cummins Emission Solutions Inc Treated SCR catalysts with enhanced sulfur resistance
JP2021195891A (ja) * 2020-06-11 2021-12-27 日野自動車株式会社 排気浄化システム

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3554929A (en) * 1967-06-08 1971-01-12 Du Pont High surface area alumina coatings on catalyst supports
US3953368A (en) 1971-11-01 1976-04-27 Exxon Research And Engineering Co. Polymetallic cluster compositions useful as hydrocarbon conversion catalysts
DE2737227C2 (de) 1977-08-18 1987-05-14 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Poröser Formkörper aus Keramik mit einer porendichten Beschichtung und Verfahren zu seiner Herstellung
US4341664A (en) 1979-06-15 1982-07-27 Uop Inc. Hydrocarbon dehydrogenation with an attenuated superactive multimetallic catalytic composite for use therein
US4229319A (en) 1979-06-15 1980-10-21 Uop Inc. Attenuated superactive multimetallic catalytic composite
DE3264660D1 (en) 1981-07-20 1985-08-14 Ford Motor Co Exhaust gas catalyst
EP0172280B1 (en) 1983-03-14 1988-03-09 E.I. Du Pont De Nemours And Company Catalyst composition
US4539308A (en) 1983-10-05 1985-09-03 Phillips Petroleum Company Olefin metathesis catalyst
EP0207542B1 (en) * 1985-06-28 1989-05-24 Shell Internationale Researchmaatschappij B.V. Process for the preparation of a silver-containing catalyst
US6087295A (en) 1992-12-14 2000-07-11 Asec Manufacturing Reduction of NOx in the exhaust gases from internal combustion engines containing excess oxygen
JPH06262078A (ja) * 1993-03-10 1994-09-20 Agency Of Ind Science & Technol 排ガス浄化材及び排ガス浄化方法
EP0667182A3 (en) 1994-02-10 1995-10-18 Riken Kk Exhaust gas purifier and method for cleaning exhaust gas.
EP0762926B1 (en) 1994-06-01 2000-06-28 ASEC Manufacturing Company Process for preparing alloyed metal catalysts for the reduction of nox in the exhaust gases from internal combustion engines containing excess oxygen
JPH0824653A (ja) * 1994-07-15 1996-01-30 Riken Corp 排ガス浄化材及び排ガス浄化方法
US5475173A (en) 1994-07-19 1995-12-12 Phillips Petroleum Company Hydrogenation process and catalyst therefor
JPH0857263A (ja) * 1994-08-19 1996-03-05 Riken Corp 排ガス浄化材及び排ガス浄化方法
FR2725638A1 (fr) * 1994-10-13 1996-04-19 Rhone Poulenc Chimie Compositions catalytiques pour la reduction des oxydes d'azote a base de tantale, de vanadium, de niobium ou d'antimoine
JPH08168650A (ja) * 1994-12-15 1996-07-02 Riken Corp 排ガス浄化材及び排ガス浄化方法
FR2729090A1 (fr) * 1995-01-11 1996-07-12 Inst Francais Du Petrole Catalyseurs de reduction selective des oxydes d'azote en azote en milieu oxydant, procede de preparation et utilisation
US5593933A (en) 1995-08-30 1997-01-14 Ford Motor Company Refractory oxides based silver-tungsten lean-NOx catalyst
EP0866749A4 (en) 1995-12-15 1998-12-09 Ppg Industries Inc INK JET PRINT MEDIUM
JP4058503B2 (ja) * 1996-10-22 2008-03-12 エヌ・イーケムキャット株式会社 排ガス浄化用触媒層、排ガス浄化用触媒被覆構造体およびこれを使用した排ガス浄化方法
DE19653200A1 (de) 1996-12-19 1998-06-25 Basf Ag Verfahren zur Reduktion von Stickoxiden
JP4088357B2 (ja) * 1997-06-12 2008-05-21 財団法人石油産業活性化センター 排ガス浄化方法
US5880196A (en) 1997-06-13 1999-03-09 Ppg Industries, Inc. Inkjet printing media
JPH1134484A (ja) * 1997-07-23 1999-02-09 Mitsubishi Paper Mills Ltd インクジェット用被記録材料
JPH1199319A (ja) * 1997-07-28 1999-04-13 Petroleum Energy Center Found 排ガス浄化方法
US6074973A (en) * 1998-03-20 2000-06-13 Engelhard Corporation Catalyzed hydrocarbon trap material and method of making the same
US5980844A (en) * 1998-04-09 1999-11-09 Asec Manufacturing SO2 -tolerant silver oxide catalysts
DE19820828B4 (de) 1998-05-09 2004-06-24 Daimlerchrysler Ag Stickoxidemissionsmindernde Abgasreinigungsanlage
JP2000015099A (ja) * 1998-06-29 2000-01-18 Tokyo Gas Co Ltd ＮＯｘ含有排ガス浄化用触媒及びＮＯｘ含有排ガスの浄化方法
US7232786B2 (en) 1998-09-14 2007-06-19 Shell Oil Company Catalyst composition
GB9919013D0 (en) 1999-08-13 1999-10-13 Johnson Matthey Plc Reactor
JP2001113134A (ja) * 1999-10-20 2001-04-24 Tokyo Gas Co Ltd ＮＯｘ含有排ガスの浄化方法
GB0020287D0 (en) * 2000-08-17 2000-10-04 Aea Technology Plc The catalytic treatment of gases
KR100442769B1 (ko) * 2001-10-22 2004-08-02 주식회사 제너럴시스템 고효율 은계 촉매 및 그 제조방법
US8444945B2 (en) * 2002-12-26 2013-05-21 Idemitsu Kosan Co., Ltd. Method for removing sulfur compound in hydrocarbon-containing gas
US7399729B2 (en) 2003-12-22 2008-07-15 General Electric Company Catalyst system for the reduction of NOx
US7146802B2 (en) * 2004-10-07 2006-12-12 General Motors Corporation Reducing NOx emissions with a staged catalyst
CN100371072C (zh) * 2005-09-30 2008-02-27 清华大学 稀燃汽油车尾气排放氮氧化物选择性还原催化剂制备方法
US7759280B2 (en) 2006-09-20 2010-07-20 Basf Corporation Catalysts, systems and methods to reduce NOX in an exhaust gas stream
US7943548B2 (en) 2006-09-20 2011-05-17 Basf Corporation Catalysts to reduce NOx in an exhaust gas stream and methods of preparation

Also Published As

Publication number Publication date
CA2664403C (en) 2015-06-09
US20080069741A1 (en) 2008-03-20
JP2010504206A (ja) 2010-02-12
CN104667915A (zh) 2015-06-03
EP2069053A2 (en) 2009-06-17
KR20140139625A (ko) 2014-12-05
MY151808A (en) 2014-07-14
BRPI0717414A2 (pt) 2013-11-12
US8173574B2 (en) 2012-05-08
KR20090057127A (ko) 2009-06-03
WO2008036813A2 (en) 2008-03-27
ES2391991T3 (es) 2012-12-03
RU2009114734A (ru) 2010-10-27
KR101485201B1 (ko) 2015-01-22
WO2008036813A3 (en) 2008-05-08
JP5734565B2 (ja) 2015-06-17
EP2069053B1 (en) 2012-08-29
CA2664403A1 (en) 2008-03-27

Similar Documents

Publication Publication Date Title
MX2009002957A (es) Catalizadores para reducir nox en una corriente de gas de escape y metodos de preparacion.
MX2009002956A (es) Catalizadores para reducir nox en una corriente de gas de escape, y metodo de preparacion.
BRPI0618428B8 (pt) sistema de tratamento de emissão para um motor diesel e método para tratar a corrente de escapamento de um motor diesel
AR069684A1 (es) Sistema de tratamiento de emisiones
BR112012019030A2 (pt) catalisador de oxidação, processo para manufaturar de oxidação, método para tratar emissões de gás de escapamento de motores de combustão interna, sistema de escpamento para um motor de combustão interna, e, veículo
BRPI0410344A (pt) sistema e métodos para controle aperfeiçoado de emissão de motores de combustão interna usando fluxo de combustìvel pulsado
BR112014008228B8 (pt) monólito de substrato catalisado, sistema de escape para um motor de combustão interna de queima pobre, motor de combustão interna de queima pobre, e, método para reduzir ou evitar que um catalisador de redução catalítica seletiva se envenene com platina
WO2010118125A3 (en) Zoned catalysts for diesel applications
ATE434718T1 (de) Abgasnachbehandlungssystem
MY142591A (en) High-temperature-resistant coated fiber layer and particulate trap with the coated fiber layer
BRPI0807379A2 (pt) Método para tratar emissões produzidas na corrente de gás de escapamento de um veículo de queima pobre ou a diesel, catalisador para a oxidação de amônia, e, sistema de tratamento para uma corrente de escapamento contendo nox.
BRPI0823287A2 (pt) Método e disposição para redução de um conteúdo de nox no gás de exaustão de um motor de combustão interna em um veículo.
BR112013014585A2 (pt) aparelho que compreende um motor de combustão interna de queima pobre, meios de gestão de motor e um sistema de escape para tratamento do gás de escape do motor, e, método para recuperar uma atividade de oxidação de um primeiro catalisador de oxidação
WO2007098514A3 (de) Abgassystem für eine brennkraftmaschine
EP1854970A4 (en) EMISSION CONTROL DEVICE AND COMBUSTION ENGINE EQUIPPED WITH THE EXHAUST GAS DETERGENT AND PARTICULATE FILTER REGENERATION METHOD
EP1519015A3 (en) Exhaust gas purifying system for internal combustion engine
BR112015026878A2 (pt) motor de ignição positiva, e, método de conversão simultânea de óxidos de nitrogênio e de matéria particulada
WO2005047663A3 (en) Emissions treatment system with nsr and scr catalysts
MX2009002958A (es) Catalizador, metodo para su preparacion y sistema para reducir nox en una corriente de gas de escape.
WO2009017228A1 (ja) 内燃機関の排気浄化装置
PL2101896T3 (pl) Sposób selektywnej redukcji katalitycznej tlenków azotu w gazie odlotowym silnika spalinowego i system gazów odlotowych
BR112018075441A2 (pt) catalisador adsorvedor de nox, métodos para fabricar um material de armazenamento de nox e para tratar um gás de escape de um motor de combustão interna, e, sistema de tratamento de emissão para tratar um fluxo de um gás de escape de combustão.
BR112012021919A2 (pt) sistema e método de pós-tratamento de gases de escape para um veículo com motor diesel, veículo, e método para reduzir o total de hidrocarbonetos
WO2008036431A3 (en) Method and apparatus for filtration of a two-stroke engine exhaust
BR112012015467A2 (pt) sistema de escapamento para um motor de combustão interna de ignição positiva veicular, motor de ignição positiva, e, método para prender e comburir matéria particulada de gás de escapamento

Legal Events

Date Code Title Description
FG Grant or registration