ZA931486B - Reduction of the quantity of nox in lean exhaust gas of motor vehicle engines - Google Patents

Reduction of the quantity of nox in lean exhaust gas of motor vehicle engines

Info

Publication number
ZA931486B
ZA931486B ZA931486A ZA931486A ZA931486B ZA 931486 B ZA931486 B ZA 931486B ZA 931486 A ZA931486 A ZA 931486A ZA 931486 A ZA931486 A ZA 931486A ZA 931486 B ZA931486 B ZA 931486B
Authority
ZA
South Africa
Prior art keywords
exhaust gas
lean exhaust
nox
reduction
motor vehicle
Prior art date
Application number
ZA931486A
Other languages
English (en)
Inventor
Juergen Leyrer
Egbert Lox
Bernd Engler
Original Assignee
Degussa
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 Degussa filed Critical Degussa
Publication of ZA931486B publication Critical patent/ZA931486B/xx

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
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/024—Multiple impregnation or coating
    • B01J37/0244—Coatings comprising several layers
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/024—Multiple impregnation or coating
    • B01J37/0246—Coatings comprising a zeolite
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Treating Waste Gases (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
ZA931486A 1992-03-04 1993-03-02 Reduction of the quantity of nox in lean exhaust gas of motor vehicle engines ZA931486B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4206699A DE4206699C2 (de) 1992-03-04 1992-03-04 NO¶x¶-Verminderung im mageren Abgas von Kraftfahrzeugmotoren

Publications (1)

Publication Number Publication Date
ZA931486B true ZA931486B (en) 1993-10-04

Family

ID=6453141

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA931486A ZA931486B (en) 1992-03-04 1993-03-02 Reduction of the quantity of nox in lean exhaust gas of motor vehicle engines

Country Status (19)

Country Link
US (1) US5354720A (cs)
EP (1) EP0559021B1 (cs)
JP (1) JP3502408B2 (cs)
KR (1) KR100251608B1 (cs)
CN (1) CN1079413A (cs)
AT (1) ATE129427T1 (cs)
AU (1) AU651517B2 (cs)
BR (1) BR9300731A (cs)
CA (1) CA2090882C (cs)
CZ (1) CZ379992A3 (cs)
DE (2) DE4206699C2 (cs)
ES (1) ES2079219T3 (cs)
HU (1) HU211407B (cs)
MX (1) MX9301179A (cs)
PL (1) PL171411B1 (cs)
RO (1) RO111164B1 (cs)
TR (1) TR26500A (cs)
TW (1) TW231972B (cs)
ZA (1) ZA931486B (cs)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6248684B1 (en) 1992-11-19 2001-06-19 Englehard Corporation Zeolite-containing oxidation catalyst and method of use
JP3712240B2 (ja) * 1993-03-29 2005-11-02 エンゲルハード・コーポレーシヨン 改良されたゼオライト含有酸化触媒および使用方法
FR2715580B1 (fr) * 1994-01-31 1996-04-05 Inst Francais Du Petrole Catalyseur de traitement des gaz d'échappement des moteurs à combustion interne.
DE4436890A1 (de) * 1994-10-15 1996-04-18 Degussa Verfahren zur gleichzeitigen Verminderung der im Abgas einer Verbrennungskraftmaschine enthaltenen Kohlenwasserstoffe, Kohlenmonoxid und Stickoxide
CA2144366A1 (en) * 1995-03-09 1996-09-11 Takashi Itoh Method of purifying exhaust gas from internal combustion engine
GB9511412D0 (en) * 1995-06-06 1995-08-02 Johnson Matthey Plc Improvements in emission control
US5849255A (en) * 1995-06-07 1998-12-15 Asec Manufacturing Treatment of diesel exhaust gas using zeolite catalyst
ZA963235B (en) * 1995-06-15 1996-10-25 Engelhard Corp Diesel exhaust stream treating catalyst and method of use
FR2737136B1 (fr) * 1995-07-24 1997-12-12 Inst Francais Du Petrole Catalyseur a base de zeolithe mordenite modifiee au cerium, et son utilisation en isomerisation d'une coupe c8 aromatique
DE19614540A1 (de) * 1996-04-12 1997-10-16 Degussa Dieselkatalysator
JPH09276703A (ja) * 1996-04-19 1997-10-28 Honda Motor Co Ltd 排気ガス浄化用触媒
EP1402946B1 (en) 1996-08-13 2005-07-06 Toyota Jidosha Kabushiki Kaisha An exhaust purification catalyst for a compression ignition engine
JP3956437B2 (ja) * 1996-09-26 2007-08-08 マツダ株式会社 排気ガス浄化用触媒
DE19653958A1 (de) * 1996-12-21 1998-06-25 Degussa Verfahren zur Verminderung der Stickoxide im Abgas von Verbrennungsmotoren
BE1011581A3 (fr) * 1997-12-01 1999-11-09 Solvay Catalyseur a base de zeolite, son utilisation et procede d'epoxydation en presence de ce catalyseur.
CN1069555C (zh) * 1997-12-23 2001-08-15 中国石油化工总公司 含zsm－5沸石的脱氮氧化物催化剂及其制备方法
CN1069554C (zh) * 1997-12-23 2001-08-15 中国石油化工总公司 Zsm-5沸石与多孔金属复合材料及其制备方法
US6143681A (en) * 1998-07-10 2000-11-07 Northwestern University NOx reduction catalyst
CN1101727C (zh) * 1998-11-27 2003-02-19 华东理工大学 净化机动车排气的稀土－贵金属催化剂及其制备方法
JP2000176298A (ja) * 1998-12-11 2000-06-27 Mazda Motor Corp 排気ガス浄化用触媒及びその製造方法
KR20010037201A (ko) * 1999-10-14 2001-05-07 이계안 디젤 자동차용 촉매
DE10010041A1 (de) * 2000-03-02 2001-09-06 Volkswagen Ag Verfahren und Anordnung zur Bestimmung eines in eine Verbrennungskraftmaschine einzuspeisenden Luft-Kraftstoff-Gemisches
DE60126515T2 (de) * 2000-06-22 2007-11-22 Mitsubishi Jidosha Kogyo K.K. Katalysator zur Abgasreinigung
US6750168B2 (en) 2000-12-05 2004-06-15 Delphi Technologies, Inc. High-temperature aging tolerance catalyzed adsorber system for treating internal combustion engine exhaust gas
US6759358B2 (en) 2001-08-21 2004-07-06 Sud-Chemie Inc. Method for washcoating a catalytic material onto a monolithic structure
GB0124679D0 (en) * 2001-10-13 2001-12-05 Johnson Matthey Plc Selective oxidation
US6921594B2 (en) * 2001-12-19 2005-07-26 Sud-Chemie Inc. Exhaust treatment and filtration system for molten carbonate fuel cells
JP4225735B2 (ja) * 2002-03-01 2009-02-18 バブコック日立株式会社 窒素酸化物除去用触媒、その製造方法および窒素酸化物の除去方法
KR20040002344A (ko) * 2002-09-06 2004-01-07 안호근 질소화합물의 저감을 위한 선택적 촉매환원용 촉매
US20040254061A1 (en) * 2003-06-12 2004-12-16 Danan Dou Diesel exhaust emissions control device and methods of making thereof
JP2006110485A (ja) * 2004-10-15 2006-04-27 Johnson Matthey Japan Inc 排気ガス触媒およびそれを用いた排気ガス処理装置
JP2006314989A (ja) * 2005-04-11 2006-11-24 Valtion Teknillinen Tutkimuskeskus 窒素酸化物を接触還元するための触媒及び触媒構造体
US20090084090A1 (en) * 2005-04-11 2009-04-02 Tadao Nakatsuji Catalyst and Catalyst Structure for Reduction of Nitrogen Oxides, and Method for Catalytic Reduction of Nitrogen Oxides
US20100166628A1 (en) * 2006-02-15 2010-07-01 Nicola Soeger Catalyst for reducing nitrogen-containing pollutants from the exhaust gases of diesel engines
JP2007275704A (ja) * 2006-04-03 2007-10-25 Johnson Matthey Japan Inc 排気ガス触媒およびそれを用いた排気ガス処理装置
JP4294041B2 (ja) * 2006-07-31 2009-07-08 本田技研工業株式会社 ＮＯｘ浄化触媒
DE102007003531A1 (de) * 2007-01-24 2008-07-31 Süd-Chemie AG Schwefelbeständiger geträgerter Edelmetallkatalysator sowie dessen Verwendung
KR101496916B1 (ko) * 2007-10-29 2015-02-27 유미코어 니폰 쇼쿠바이 가부시키가이샤 질소 산화물 제거용 촉매 및 그것을 사용한 질소 산화물 제거 방법
DE102007057305A1 (de) * 2007-11-28 2009-06-04 Süd-Chemie AG Beschichtungszusammensetzung für Dieseloxidationskatalysatoren
KR101447945B1 (ko) * 2008-01-21 2014-10-08 에스케이이노베이션 주식회사 제올라이트를 이용한 질소산화물 저감용 하니컴형 촉매의제조방법
WO2009141875A1 (ja) * 2008-05-20 2009-11-26 イビデン株式会社 ハニカム構造体
US8225597B2 (en) * 2008-09-30 2012-07-24 Ford Global Technologies, Llc System for reducing NOx in exhaust
US8865082B2 (en) * 2009-10-05 2014-10-21 GM Global Technology Operations LLC Method and system for monitoring a hydrocarbon adsorber
US8329127B2 (en) 2010-09-15 2012-12-11 Johnson Matthey Public Limited Company Combined slip catalyst and hydrocarbon exotherm catalyst
EP3641917A1 (en) 2016-12-05 2020-04-29 Basf Corporation Tetra-functional catalyst for the oxidation of no, the oxidation of a hydrocarbon, the oxidation of nh3 and the selective catalytic reduction of nox
EP3357558B1 (de) 2017-02-03 2019-06-26 Umicore Ag & Co. Kg Katalysator zur reinigung der abgase von dieselmotoren
EP3498993A1 (de) 2017-12-15 2019-06-19 Umicore Ag & Co. Kg Kombination eines zeolithbasierten scr mit einem manganbasierten scr im bypass
EP3616792A1 (de) 2018-08-28 2020-03-04 Umicore Ag & Co. Kg Stickoxid-speicherkatalysator
KR102875846B1 (ko) 2018-10-31 2025-10-24 바스프 모바일 에미션스 카탈리스츠 엘엘씨 NOx 저감을 위한 구리 포획 구성요소가 첨가된 촉매 조성물
US11073057B2 (en) * 2019-01-31 2021-07-27 Hyundai Motor Company Co clean-up catalyst, after treatment system and after treatment method

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS593218B2 (ja) * 1975-09-25 1984-01-23 トウアネンリヨウコウギヨウ カブシキガイシヤ ダツシヨウシヨクバイ
FR2495957B1 (fr) * 1980-12-17 1986-09-12 Pro Catalyse Catalyseur et procede perfectionnes pour le traitement des gaz d'echappement des moteurs a combustion interne
JPS60106535A (ja) * 1983-11-16 1985-06-12 Mitsubishi Heavy Ind Ltd 廃ガス処理用触媒
DE3642018A1 (de) * 1985-12-21 1987-06-25 Volkswagen Ag Verfahren und vorrichtung zur reduktion von stickoxiden
FR2595265B1 (fr) * 1986-03-07 1992-10-09 Pro Catalyse Catalyseur et procede pour le traitement des gaz d'echappement des moteurs a combustion interne
DE3635284A1 (de) * 1986-10-16 1988-04-28 Steuler Industriewerke Gmbh Katalysator zur entfernung von stickoxiden aus abgasen
US4760044A (en) * 1987-06-15 1988-07-26 Allied-Signal Inc. Catalyst for minimizing the H2 S emissions from automotive exhaust and method of its manufacture
JPH01127044A (ja) * 1987-11-11 1989-05-19 Toyota Central Res & Dev Lab Inc 排気浄化用触媒
JPH01139144A (ja) * 1987-11-25 1989-05-31 Toyota Motor Corp 排気浄化用触媒
AU619828B2 (en) * 1988-07-13 1992-02-06 Allied-Signal Inc. Pollution control catalyst for minimizing h2s emissions
DE3830318A1 (de) * 1988-09-07 1990-03-15 Degussa Abgaskatalysator mit verminderter neigung zu speicherung von schwefeloxiden und schwefelwasserstoffemission
JPH0755285B2 (ja) * 1988-11-29 1995-06-14 財団法人産業創造研究所 廃煙中の窒素酸化物除去法
DE3841990A1 (de) * 1988-12-14 1990-06-21 Degussa Verfahren zur reduktion von stickoxiden aus abgasen
JP2730750B2 (ja) * 1989-02-16 1998-03-25 マツダ株式会社 排気ガス浄化用触媒およびその製造方法
JP2909553B2 (ja) * 1989-10-18 1999-06-23 トヨタ自動車株式会社 排気ガス浄化用触媒及び排気ガスの浄化方法
DE3940758A1 (de) * 1989-12-09 1991-06-13 Degussa Verfahren zur reinigung der abgase von dieselmotoren
JP3061399B2 (ja) * 1990-06-20 2000-07-10 株式会社日本触媒 ディーゼルエンジン排ガス浄化用触媒および浄化方法
US5116044A (en) * 1990-09-26 1992-05-26 William T. Wilkinson Aerobic climbing step/bench
JP2771321B2 (ja) * 1990-11-09 1998-07-02 日本碍子株式会社 排気ガス浄化用触媒組成物、排気ガス浄化用触媒及びその製造方法

Also Published As

Publication number Publication date
JPH0671179A (ja) 1994-03-15
EP0559021B1 (de) 1995-10-25
HUT66374A (en) 1994-11-28
KR100251608B1 (ko) 2000-04-15
MX9301179A (es) 1994-07-29
AU651517B2 (en) 1994-07-21
PL171411B1 (pl) 1997-04-30
CZ379992A3 (en) 1994-02-16
US5354720A (en) 1994-10-11
DE59300801D1 (de) 1995-11-30
CA2090882A1 (en) 1993-09-05
TW231972B (cs) 1994-10-11
BR9300731A (pt) 1993-09-08
CA2090882C (en) 1998-08-18
DE4206699C2 (de) 1996-02-01
TR26500A (tr) 1995-03-15
DE4206699A1 (de) 1993-09-09
HU211407B (en) 1995-11-28
PL297926A1 (en) 1993-11-15
AU3395393A (en) 1993-09-09
ES2079219T3 (es) 1996-01-01
EP0559021A2 (de) 1993-09-08
RO111164B1 (ro) 1996-07-30
EP0559021A3 (en) 1993-12-08
CN1079413A (zh) 1993-12-15
JP3502408B2 (ja) 2004-03-02
KR930019267A (ko) 1993-10-18
HU9300582D0 (en) 1993-05-28
ATE129427T1 (de) 1995-11-15

Similar Documents

Publication Publication Date Title
HUT66374A (en) Method for reducing quantity of nitrogen oxides in exhaust gas of vehicle engines
EP0830201B1 (en) Diesel engine exhaust gas purification system
US6089015A (en) Method of purifying a lean exhaust gas and catalytic system therefor
DE69133034D1 (de) Katalysatorzusammensetzung mit getrennten Platinum- und Rhodiumkomponenten
EP0385123A3 (en) Thermally stable ferrites for reduction of hydrogen sulfide emissions from automobile exhaust
CA2110139A1 (en) Exhaust Gas Purification System for Reducing Hydrocarbon Emissions During the Cold Start of Combustion Engines
US6119451A (en) Nitrogen oxide removal using diesel fuel and a catalyst
US5972828A (en) Method of manufacturing catalyst for cleaning exhaust gas released from internal combustion engine, and catalyst for the same
Matsumoto Recent advances in automobile exhaust catalyst
AU3964293A (en) Device for cleaning exhaust fumes
EP0969914B1 (en) Emission control system for a lean-burn internal combustion engine
RU93004609A (ru) Катализатор для снижения содержания оксидов азота в обедненном выхлопном газе автомобильных двигателей
EP0808800A3 (en) Praseodymium-zirconium-oxides for catalyst and washcoat
Tsuchida et al. Catalytic performance of alumina for NOx control in diesel exhaust
DE59810361D1 (de) Katalysator und abgasleitung zur reinigung eines abgases aus einem mit luftüberschuss betriebenen verbrennungsmotor
JP3534286B2 (ja) 排ガス浄化用触媒及び排ガス浄化方法
JPH0957100A (ja) 内燃機関用排ガス浄化触媒
RU93052386A (ru) Система нейтрализации отработавших газов для снижения углеводородных выбросов во время холодного пуска двигателей внутреннего сгорания
MX9708633A (es) Catalizador para la purificacion de gases de escape con una conversion mejorada para hidrocarburos.