FI107828B - System för att rena avgaser från dieselmotorer och förfarande för att rena avgaser från dieselmotorer - Google Patents

System för att rena avgaser från dieselmotorer och förfarande för att rena avgaser från dieselmotorer Download PDF

Info

Publication number
FI107828B
FI107828B FI991133A FI991133A FI107828B FI 107828 B FI107828 B FI 107828B FI 991133 A FI991133 A FI 991133A FI 991133 A FI991133 A FI 991133A FI 107828 B FI107828 B FI 107828B
Authority
FI
Finland
Prior art keywords
catalyst
exhaust gases
cell
soot
cells
Prior art date
Application number
FI991133A
Other languages
English (en)
Finnish (fi)
Other versions
FI991133A0 (sv
FI991133A (sv
Inventor
Reijo Lylykangas
Aulis Vakkilainen
Teuvo Maunula
Keijo Torkkell
Original Assignee
Kemira Metalkat Oy
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=8554685&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI107828(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kemira Metalkat Oy filed Critical Kemira Metalkat Oy
Priority to FI991133A priority Critical patent/FI107828B/sv
Publication of FI991133A0 publication Critical patent/FI991133A0/sv
Priority to DE60035734T priority patent/DE60035734T3/de
Priority to EP00660072A priority patent/EP1057519B2/en
Publication of FI991133A publication Critical patent/FI991133A/sv
Application granted granted Critical
Publication of FI107828B publication Critical patent/FI107828B/sv

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]
    • B01D53/9454—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific device
    • 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
    • B01D53/9431—Processes characterised by a specific device
    • 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
    • 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
    • F01N13/0093—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 the purifying devices are of the same type
    • 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
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/0231—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using special exhaust apparatus upstream of the filter for producing nitrogen dioxide, e.g. for continuous filter regeneration systems [CRT]
    • 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
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
    • F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel 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
    • 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
    • F01N3/18—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 characterised by methods of operation; Control
    • F01N3/20—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 characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2053—By-passing catalytic reactors, e.g. to prevent overheating
    • 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
    • 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

  • 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)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)

Claims (16)

1. System för att rena avgaser fr an dieselmotorer, som är underhällsfritt och inne-fattar en främre katalysator (3; 7) med bikakestruktur och en bakre katalysator (5; 8) inrättad efter den främre katalysatom i avgasemas strömningsriktning, känneteck- 15 nat av att vardera bikakestrukturen (3, 5; 7, 8) innehaller ett katalysatormaterial som är aktivt beträffande selektiv reduktion av kväveoxider, uppkomst av N02 och oxidering av kolväten, kolos och väte, och att systemet dessutom uppvisar ett eller flera av följande drag, vilket/vilka ytterligare förbättrar forbränning av kolos och reduktion av kväveoxider: :-\20 (i) en förbikanal (4), med vilken en del av avgasema styrs förbi den främre kata- :'·*: lysatom tili den bakre katalysatom, (ii) antalet öppningar i den främre katalysatoms bikakestruktur (3; 7) är mindre än * / antalet öppningar i den bakre katalysatoms bikakestruktur (5; 8), • · · • · · (iii) ätminstone den ena bikakestrukturen innehaller en förening som binder sot 25 och/eller svaveloxider och/eller kväveoxider.
2. System enligt patentkrav 1, kännetecknat av att det innefattar en förbikanal *...: (4), med vilken en del av avgasema styrs förbi den främre katalysatom (3; 7) tili den » ; ; : bakre katalysatom (5; 8) och som regleras enligt kväveoxidema och mottrycket.
·«♦ * ♦·♦ • ♦ *···* 3. System enligt patentkrav 2, kännetecknat av att förbikopplingen av den främ- • :**:30 re katalysatom (3; 7) styrs och regleras med tillhjälp av en överströmningsventil och överströmning i förbikanalen i en turhin (2) i dieselmotom (1). • ·
4. System enligt nägot av föregäende patentkrav, kännetecknat av att antalet öppningar i den främre katalysatoms bikakestruktur (3; 7) är 400 eller över 400 per 107828 18 kvadrattum (cpsi) och att antalet öppningar i den bakre katalysatoms bikakestruktur (5; 8) är under 400 eller 400 cpsi.
5. System enligt nägot av föregäende patentkrav, kännetecknat av att nämnda förening som binder sot och/eller svaveloxider och/eller kväveoxider placerats som 5 ett skilt skikt separat eller tillsammans med ett bindemedel pä ytan av skiktet av ak-tivt katalysatormaterial.
6. System enligt nägot av föregäende patentkrav, kännetecknat av att nämnda förening som binder sot och/eller svaveloxider och/eller kväveoxider innehäller Μη, Ce, Fe, V, La, Zr, Cr, alkalimetall, Cu, Ba, Sr och/eller Rh.
7. System enligt nägot av föregäende patentkrav, kännetecknat av att nämnda förening som binder sot och/eller svaveloxider och/eller kväveoxider är närvarande tillsammans med aluminiumoxid, titanoxid, kiseloxid, zeolit eller en kombination av dessa.
8. System enligt nägot av föregäende patentkrav, kännetecknat av att bikake-15 strukturema innefattar ett stödämne med stort ytinnehäll, pä vilket nämnda aktiva katalysatormaterial uppbärs.
. . 9. System enligt patentkrav 8, kännetecknat av att stödämnet innehäller alumini- • · ·* umoxid, titanoxid, kiseloxid och/eller zeolit.
• · · • · • · ·:··· 10. System enligt nägot av föregäende patentkrav, kännetecknat av att det aktiva ....20 katalysatormaterialet är en ädelmetall, säsom platina, palladium, rodium eller en . ·: ·. blandning av dessa.
• · · • ·· : 11. System enligt nägot av föregäende patentkrav l(i), l(iii), 2, 3 eller 5-10, kän netecknat av att antalet öppningar i den främre katalysatoms bikakestruktur är *:·*: mindre än antalet öppningar i den bakre katalysatoms bikabestruktur. • · · • · T 25
12. System enligt patentkrav 11, kännetecknat av att antalet öppningar i den ffärn- re katalysatoms bikakestruktur är 400 eller under 400 cpsi och att antalet öppningar '·] ]'/· i den bakre katalysatoms bikakestruktur är 400 eller över 400 cpsi.
‘ ' 13. Förfarande för att rena avgaser frän dieselmotorer, kännetecknat av att avga- • » sema styrs genom en främre katalysator med bikabestruktur och därefter genom en 30 bakre katalysator med bikakestruktur, varvid i vardera bikakestrukturen de i avga-sema ingaende kväveoxidema reduceras selektivt, N02 bildas och kolvätena, koloset 107828 19 och vätet oxideras, och att en del av avgasema styrs förbi den främre katalysatom till den bakre katalysatom.
14. Förfarande enligt patentkrav 13, kännetecknat av att 10-50 %, företrädesvis 20-30 % av avgasens totala volym styrs forbi den främre katalysatom. 5
15. Förfarande för att rena avgaser fran dieselmotorer, kännetecknat av att avga sema styrs genom en främre katalysator med bikabestruktur och därefter genom en bakre katalysator med bikakestruktur, varvid i vardera bikakestrukturen de i avgasema ingäende kväveoxidema reduceras selektivt, N02 bildas och kolvätena, koloset och vätet oxideras, och att antalet öppningar i bikabestrukturema valts sä att antalet 10 öppningar i den främre katalysatoms bikakestruktur är större än antalet öppningar i den bakre katalysatoms bikakestruktur, varvid sotförbränningen och reduktionen av kväveoxider sker med hög konversionsgrad.
16. Förfarande för att rena avgaser frän dieselmotorer, kännetecknat av att avgasema styrs genom en främre katalysator med bikakestruktur och därefter genom en 15 bakre katalysator med bikakestruktur, varvid i vardera bikakestrukturen de i avgasema ingäende kväveoxidema reduceras selektivt, N02 bildas och kolvätena, koloset och vätet oxideras, varvid atminstone den ena av katalysatorema innehäller en före-ning som binder sot och/eller svaveloxider och/eller kväveoxider och som främjar sotförbränningen. • · • · · • · · • · • · • · • ♦ • · · • · · • · · • · · • · · • · · • · ·1· • · • · · • · 1 • · · * · · · • · · • ♦ • · • · · · • · • · · * · ♦ • ·
FI991133A 1999-05-18 1999-05-18 System för att rena avgaser från dieselmotorer och förfarande för att rena avgaser från dieselmotorer FI107828B (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI991133A FI107828B (sv) 1999-05-18 1999-05-18 System för att rena avgaser från dieselmotorer och förfarande för att rena avgaser från dieselmotorer
DE60035734T DE60035734T3 (de) 1999-05-18 2000-04-18 Abgasreiningungssystem für einen Dieselmotor
EP00660072A EP1057519B2 (en) 1999-05-18 2000-04-18 Purification system for diesel engine exhaust gases

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI991133 1999-05-18
FI991133A FI107828B (sv) 1999-05-18 1999-05-18 System för att rena avgaser från dieselmotorer och förfarande för att rena avgaser från dieselmotorer

Publications (3)

Publication Number Publication Date
FI991133A0 FI991133A0 (sv) 1999-05-18
FI991133A FI991133A (sv) 2000-11-19
FI107828B true FI107828B (sv) 2001-10-15

Family

ID=8554685

Family Applications (1)

Application Number Title Priority Date Filing Date
FI991133A FI107828B (sv) 1999-05-18 1999-05-18 System för att rena avgaser från dieselmotorer och förfarande för att rena avgaser från dieselmotorer

Country Status (3)

Country Link
EP (1) EP1057519B2 (sv)
DE (1) DE60035734T3 (sv)
FI (1) FI107828B (sv)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19923781C2 (de) * 1999-05-22 2001-04-26 Degussa Verfahren und Vorrichtung zur Entfernung von Ruß aus dem Abgas eines Dieselmotors
DE19934932B4 (de) * 1999-07-26 2011-06-30 MAN Truck & Bus AG, 80995 Verfahren und Vorrichtung zur Abscheidung von Feinstpartikeln aus dem Abgas von Brennkraftmaschinen
JP4075292B2 (ja) * 2000-07-24 2008-04-16 トヨタ自動車株式会社 パティキュレート浄化触媒
JP2002188432A (ja) * 2000-12-19 2002-07-05 Isuzu Motors Ltd ディーゼルエンジンの排気浄化装置
DE10115485A1 (de) * 2001-03-29 2002-10-10 Daimler Chrysler Ag Partikelfilter
DE10118327A1 (de) † 2001-04-12 2002-10-17 Emitec Emissionstechnologie Abgassystem
JP4863596B2 (ja) * 2001-06-18 2012-01-25 日産自動車株式会社 排気ガス浄化システム
US20050031513A1 (en) * 2001-08-01 2005-02-10 Mcnamara John Martin Gasoline engine with an exhaust system for combusting particulate matter
GB0304939D0 (en) 2003-03-05 2003-04-09 Johnson Matthey Plc Light-duty diesel engine and a particulate filter therefor
GB0305415D0 (en) 2003-03-08 2003-04-16 Johnson Matthey Plc Exhaust system for lean burn IC engine including particulate filter and NOx absorbent
US8092767B2 (en) 2003-04-17 2012-01-10 Johnson Matthey Public Limited Company Method of decomposing nitrogen dioxide
WO2004113691A2 (en) 2003-06-18 2004-12-29 Johnson Matthey Public Limited Company System and method of controlling reductant addition
ATE340014T1 (de) * 2003-07-09 2006-10-15 Hochschule Rapperswil Inst Fue Verringerung der stickstoffdioxid-emission bei kontinuierlich regenerierenden russpartikelnfiltern
DE10357893A1 (de) * 2003-12-11 2005-07-07 Deutz Ag Oxidationskatalysator mit variabler Aktivität
GB0422549D0 (en) 2004-10-12 2004-11-10 Johnson Matthey Plc Method of decomposing nitrogen dioxide
GB0603942D0 (en) 2006-02-28 2006-04-05 Johnson Matthey Plc Exhaust system for a spark-ignited internal combustion engine
GB0617070D0 (en) 2006-08-30 2006-10-11 Johnson Matthey Plc Low Temperature Hydrocarbon SCR
GB0618482D0 (en) 2006-09-20 2006-11-01 Johnson Matthey Plc Washcoated particulate filter substrate
GB0620883D0 (en) 2006-10-20 2006-11-29 Johnson Matthey Plc Exhaust system for a lean-burn internal combustion engine
US20120233985A1 (en) 2006-12-21 2012-09-20 Johnson Matthey Public Limited Company Apparatus comprising lean burn ic engine and an exhaust system therefor
CN102974391A (zh) 2007-04-26 2013-03-20 约翰逊马西有限公司 过渡金属/沸石scr催化剂
GB0716833D0 (en) 2007-08-31 2007-10-10 Nunn Andrew D On board diagnostic system
GB0808427D0 (en) 2008-05-09 2008-06-18 Johnson Matthey Plc Apparatus
GB0812544D0 (en) 2008-07-09 2008-08-13 Johnson Matthey Plc Exhaust system for a lean burn IC engine
US8512657B2 (en) 2009-02-26 2013-08-20 Johnson Matthey Public Limited Company Method and system using a filter for treating exhaust gas having particulate matter
GB0903262D0 (en) 2009-02-26 2009-04-08 Johnson Matthey Plc Filter
US9144796B1 (en) 2009-04-01 2015-09-29 Johnson Matthey Public Limited Company Method of applying washcoat to monolithic substrate
GB2469581A (en) 2009-04-17 2010-10-20 Johnson Matthey Plc Method of using copper/small pore molecular sieve catalysts in a chemical process
KR102180723B1 (ko) 2009-04-17 2020-11-20 존슨 맛쎄이 퍼블릭 리미티드 컴파니 질소 산화물의 환원에 대한 희박/농후 노화에 대해 내구적인 소기공 분자 체 지지된 구리 촉매
CN102482971B (zh) * 2009-08-28 2014-10-29 尤米科尔股份公司及两合公司 在具有相同存储功能的催化转化器上游具有具有存储功能的催化活性壁流式过滤器的尾气后处理体系
US7959883B2 (en) 2009-08-28 2011-06-14 Corning Incorporated Engine exhaust gas reactors and methods
GB2475740B (en) 2009-11-30 2017-06-07 Johnson Matthey Plc Catalysts for treating transient NOx emissions
CN102762283A (zh) 2009-12-24 2012-10-31 约翰逊马西有限公司 用于车辆正点火内燃发动机的排气系统
GB201000019D0 (en) 2010-01-04 2010-02-17 Johnson Matthey Plc Coating a monolith substrate with catalyst component
WO2011112949A1 (en) 2010-03-11 2011-09-15 Johnson Matthey Public Limited Company DISORDERED MOLECULAR SIEVE SUPPORTS FOR THE SELECTIVE CATALYTIC REDUCTION OF NOx
GB201100595D0 (en) 2010-06-02 2011-03-02 Johnson Matthey Plc Filtration improvements
US8101146B2 (en) 2011-04-08 2012-01-24 Johnson Matthey Public Limited Company Catalysts for the reduction of ammonia emission from rich-burn exhaust
GB201207313D0 (en) 2012-04-24 2012-06-13 Johnson Matthey Plc Filter substrate comprising three-way catalyst
GB2513364B (en) 2013-04-24 2019-06-19 Johnson Matthey Plc Positive ignition engine and exhaust system comprising catalysed zone-coated filter substrate
GB2503243A (en) 2012-06-18 2013-12-25 Johnson Matthey Plc Combined particulate filter and hydrocarbon trap
GB201302686D0 (en) 2013-02-15 2013-04-03 Johnson Matthey Plc Filter comprising three-way catalyst
GB2512648B (en) 2013-04-05 2018-06-20 Johnson Matthey Plc Filter substrate comprising three-way catalyst
GB201311615D0 (en) 2013-06-03 2013-08-14 Johnson Matthey Plc Method of coating a substrate with a catalyst component
GB2518418A (en) 2013-09-20 2015-03-25 Johnson Matthey Plc Electrically heated catalyst for a compression ignition engine
GB201322842D0 (en) 2013-12-23 2014-02-12 Johnson Matthey Plc Exhaust system for a compression ingition engine comprising a water absorbent material
JP6716067B2 (ja) 2014-08-19 2020-07-01 ヤンマーパワーテクノロジー株式会社 ディーゼル用酸化触媒
WO2016186761A1 (en) 2015-05-21 2016-11-24 Chevron U.S.A. Inc. Processes using molecular sieve ssz-27
JP6697549B2 (ja) 2015-10-16 2020-05-20 シェブロン ユー．エス．エー． インコーポレイテッド 分子ふるいｓｓｚ−１０５、その合成および使用
DE202015008136U1 (de) 2015-11-24 2016-05-12 Medentic Deutschland Gmbh Abgas Reiniger für Dieselfahrzeuge
WO2017178801A1 (en) 2016-04-11 2017-10-19 Johnson Matthey Public Limited Company Method of coating a substrate with a particle stabilized foam
CN113107648B (zh) * 2016-12-12 2022-08-02 康明斯排放处理公司 还原剂浓度诊断系统和方法
EP3947930A1 (en) 2019-03-28 2022-02-09 Johnson Matthey Public Limited Company Fluid feed ring and associated apparatus and method
JP2022540686A (ja) 2019-08-08 2022-09-16 ジョンソン、マッセイ、パブリック、リミテッド、カンパニー 車両用圧縮点火エンジンと電気加熱可能要素を備える排ガス制御装置とを備えるシステム

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1362202A (en) * 1971-01-19 1974-07-30 British Leyland Motor Corp Exhaust systems for internal combustion engines
US3785781A (en) † 1971-10-04 1974-01-15 Universal Oil Prod Co Apparatus for catalytically converting fluid
DK108993D0 (da) * 1993-09-27 1993-09-27 Haldor Topsoe As Fremgangsmaade til reduktion af taendingstemperatur
JP3575139B2 (ja) * 1995-11-07 2004-10-13 日産自動車株式会社 ディーゼルエンジン用酸化触媒
TW329395B (en) * 1996-02-12 1998-04-11 Siemens Ag Installation and method for decomposing nitrogen oxide in a gas-flow
GB9621215D0 (en) * 1996-10-11 1996-11-27 Johnson Matthey Plc Emission control

Also Published As

Publication number Publication date
DE60035734D1 (de) 2007-09-13
FI991133A0 (sv) 1999-05-18
EP1057519B2 (en) 2011-08-24
DE60035734T3 (de) 2012-03-22
EP1057519A1 (en) 2000-12-06
FI991133A (sv) 2000-11-19
EP1057519B1 (en) 2007-08-01
DE60035734T2 (de) 2008-04-30

Similar Documents

Publication Publication Date Title
FI107828B (sv) System för att rena avgaser från dieselmotorer och förfarande för att rena avgaser från dieselmotorer
US7225613B2 (en) Diesel engine after treatment device for conversion of nitrogen oxide and particulate matter
US7563414B2 (en) High-temperature-resistant coated fiber layer and particulate trap with the coated fiber layer
US9468915B2 (en) Selective catalytic reduction catalyst system
EP2732141B1 (en) Method and device for reactivating exhaust-gas purification systems of diesel engines with low-pressure egr
US6916450B2 (en) Exhaust gas purifying system and method
EP3052775B1 (en) Exhaust aftertreatment system
US9169753B2 (en) Diesel engine and a catalysed filter therefor
US20090173063A1 (en) Mitigation of Particulates and NOx in Engine Exhaust
CN102454453B (zh) 具有降低的so3产生和改进的耐久性的排放scr nox后处理系统
KR20110041502A (ko) 린번 내연 엔진용 배기 시스템
CN104838099A (zh) 催化型烟灰过滤器
MX2011000059A (es) Catalizador abdsborbedor de nox con desempeño superior a baja temperatura.
CA2729063A1 (en) Method and device for the purification of diesel exhaust gases
KR20080015474A (ko) 디젤 그을음의 여과를 위한 분리된 촉매화 금속 와이어여과기
CN102003251A (zh) 柴油机废气的后处理装置
EP2772302A1 (en) Hexagonal oxidation catalyst
JPH1057820A (ja) ディーゼルエンジンの排気浄化触媒
CN104411927A (zh) 被包覆的颗粒过滤器、催化剂及具有所述过滤器和催化剂的设备
Saito et al. Purification of diesel exhaust gas
Searles Contribution of automotive catalytic converters
Lylykangas et al. Particle oxidation catalyst for heavy-duty diesel engines
KR20130110136A (ko) 다기능성 배기가스 정화필터 및 이를 이용한 배기가스 정화장치
FI116236B (sv) System och förfarande för rening av avgaser
Singh et al. Catalytic Control Options for Diesel Particulate Emissions Including that from Locomotive Engines

Legal Events

Date Code Title Description
MA Patent expired