EP2928595A1 - Catalyseur à oxydation pour moteurs diesel divisé en zones - Google Patents

Catalyseur à oxydation pour moteurs diesel divisé en zones

Info

Publication number
EP2928595A1
EP2928595A1 EP13799516.3A EP13799516A EP2928595A1 EP 2928595 A1 EP2928595 A1 EP 2928595A1 EP 13799516 A EP13799516 A EP 13799516A EP 2928595 A1 EP2928595 A1 EP 2928595A1
Authority
EP
European Patent Office
Prior art keywords
catalytically active
active zone
oxidation catalyst
diesel oxidation
length
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.)
Withdrawn
Application number
EP13799516.3A
Other languages
German (de)
English (en)
Inventor
Martin Symalla
Frank-Walter Schuetze
Michael Schiffer
Christoph Hengst
Katja Adelmann
Gerald Jeske
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Umicore AG and Co KG
Original Assignee
Umicore AG and Co KG
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 Umicore AG and Co KG filed Critical Umicore AG and Co KG
Priority to EP13799516.3A priority Critical patent/EP2928595A1/fr
Publication of EP2928595A1 publication Critical patent/EP2928595A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/44—Palladium
    • 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
    • B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
    • 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
    • B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
    • B01D53/9477—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on separate bricks, e.g. exhaust systems
    • 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
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/064—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof containing iron group metals, noble metals or copper
    • B01J29/068—Noble metals
    • 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
    • B01J35/19—Catalysts containing parts with different compositions
    • 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
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
    • 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
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • B01J37/0027—Powdering
    • B01J37/0036—Grinding
    • 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
    • B01J37/0201—Impregnation
    • 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
    • F01N3/103—Oxidation catalysts for HC and CO only
    • 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
    • B01D2255/1021—Platinum
    • 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
    • B01D2255/1023—Palladium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/903—Multi-zoned catalysts
    • B01D2255/9032—Two zones
    • 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
    • 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
    • F01N2510/00—Surface coverings
    • F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
    • F01N2510/068—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings
    • F01N2510/0682—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings having a discontinuous, uneven or partially overlapping coating of catalytic material, e.g. higher amount of material upstream than downstream or vice versa
    • 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
    • F01N2570/10—Carbon or carbon 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
    • F01N2570/12—Hydrocarbons
    • 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
    • F01N3/24—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 constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • 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
    • F01N3/24—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 constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2825—Ceramics
    • F01N3/2828—Ceramic multi-channel monoliths, e.g. honeycombs

Definitions

  • the present invention relates to a zoned oxidation catalyst for purifying the exhaust gases of diesel engines.
  • the raw exhaust gas of diesel engines contains a relatively high oxygen content of up to 15% by volume.
  • particulate emissions are contained, which consist predominantly of soot residues and optionally organic agglomerates and result from a partially incomplete fuel combustion in the cylinder.
  • diesel particle filters with and without catalytically active coating are suitable for removing particulate emissions and nitrogen oxides can be converted to nitrogen by selective catalytic reduction (SCR) on a so-called SCR catalyst, for example, carbon monoxide and hydrocarbons are rendered harmless by oxidation to a suitable oxidation catalyst made.
  • Oxidation catalysts are extensively described in the literature. These are, for example, so-called flow-through substrates made of ceramic or metal, which, as essential catalytically active constituents, carry noble metals, such as platinum and palladium, on high-surface-area, porous, high-melting oxides, for example aluminum oxide.
  • Zoned oxidation catalysts are also described which, in the flow direction of the exhaust gas, have material zones of different composition with which the exhaust gas comes into contact one after the other.
  • US2010 / 257843 describes a zoned oxidation catalyst containing platinum and palladium, wherein at least 50% of the total palladium content in the first zone and at least 50% of the total platinum content in the second zone.
  • the first zone is the one with which the exhaust gas first comes in contact, that starts at the input side of the substrate.
  • US2011 / 099975 and WO2012 / 079598 Al also describe a zoned oxidation catalyst containing platinum and palladium.
  • the total amount of platinum and palladium in the first zone is high compared to the second zone and the platinum to palladium ratio is relatively low in the first zone and relatively high in the second zone.
  • the first zone is the one with which the exhaust first comes into contact.
  • WO 2011/057649 describes oxidation catalysts which can be used in linearized and zoned embodiments.
  • the second zone i. the zone with which the effluent exhaust gas is in direct contact has a higher noble metal content than the front zone, which is in direct contact with the incoming exhaust gas.
  • the oxidation catalysts according to WO2011 / 057649 have the particular task for a
  • downstream SCR catalyst to set an optimal ratio of NO to NO2.
  • Zoned platinum and palladium-containing oxidation catalysts are also described in US2011 / 206584.
  • the present invention relates to a diesel oxidation catalyst comprising a support body of length L extending between a first end face and a second end face and one on the support body
  • catalytically active coating comprising a first catalytically active zone and a second catalytically active zone, wherein
  • the support body is a ceramic or metallic
  • the first catalytically active zone and the second catalytically active zone have the same thermal masses
  • the first catalytically active zone and the second catalytically active zone contain as the catalytically active constituents in each case platinum and palladium,
  • the weight ratio of platinum to palladium in the first catalytically active zone and the second catalytically active zone is the same and is 1: 1, and
  • the catalytically active zone is greater than in the second catalytically active zone.
  • the length E of the first catalytically active zone is 20 to 70%, 40 to 60% or 45 to 50% of the total length L.
  • the length Z of the second catalytically active zone is 20 to 70% in embodiments of the present invention. , 40 to 60% or 45 to 50% of the total length L.
  • the lengths E and Z are both 50% of
  • the sum of the length E of the first catalytically active zone and the length Z of the second catalytically active zone can correspond exactly to the total length L. In particular, for production reasons, however, it may be smaller than the total length L in embodiments of the present invention. In these cases, a certain length is the
  • Total length L between the coated lengths E and Z uncoated For example, the sum of the length E of the first catalytically active zone and the length Z of the second catalytically active zone L x 0.8 to L x 0.999.
  • the first end face of the support body is hereinafter also referred to as the entry end face, the second end face also as the exit end face.
  • the first catalytically active zone and the second catalytically active zone have the same thermal masses.
  • thermal mass is known in the art as heat capacity and can according to known in the
  • Washcoat loading of the first and second catalytically active zone is the same. It can vary within wide limits depending on the application and is for example 50 to 400 g / l. Alternatively, the same thermal masses of the first and second catalytically active zones can be achieved at different washcoat loadings by the use of compacted washcoat constituents. In particular, carrier materials such as compacted alumina are suitable for this purpose.
  • Precious metal content because negligible, is not included.
  • the noble metal loading in the first and second catalytically active zones may each be 10 g / ft 3 (0.35315 g / L) to 220 g / ft 3 (7.76923 g / L). In other embodiments, the noble metal loading may also be at 15 g / ft 3 (0.52972 g / L) to 70 g / ft 3 (2.47203 g / L).
  • the first catalytically active zone contains 1, 2 to 4 times as much platinum and palladium as the second catalytically active zone.
  • the absolute noble metal content of the inventive diesel oxidation catalyst is, for example, 10 to 200 g / ft 3 (0.35315 to 7.063 g / L), 10 to 100 g / ft 3 (0.35315 to 3.5315 g / L) or at 15 to 50 g / ft 3 (0.52973 to 1.76575 g / L).
  • platinum and palladium in both zones are on one or more
  • Suitable carrier oxides are, for example, aluminum oxides, silicon oxides, zirconium oxide- and / or titanium-oxide-doped aluminum oxides and aluminum-silicon mixed oxides.
  • the selected carrier oxides are suspended in water.
  • Platinum and palladium are added with stirring in the form of suitable, water-soluble
  • Precursor compounds such as palladium nitrate or hexa-hydroxoplatinic acid added to the suspension and optionally fixed by adjusting the pH and / or by adding an auxiliary reagent on the support material.
  • the noble metal can also be applied to the substrate in analogy to the method described in EP 1 101 528 A2.
  • the coated part is dried in a stream of hot air and optionally calcined.
  • the diesel oxidation catalysts according to the invention are suitable for cleaning the exhaust gases of diesel engines, in particular with regard to
  • the present invention thus also relates to a process for the treatment of diesel exhaust gases, characterized in that the diesel exhaust gas is passed over a diesel oxidation catalyst as described above and defined.
  • diesel oxidation catalysts according to the invention are used in particular as constituents of exhaust gas purification systems.
  • Corresponding emission control systems comprise, in addition to an inventive
  • Diesel oxidation catalyst for example a diesel particulate filter and / or a catalyst for the selective catalytic reduction of nitrogen oxides, diesel particulate filter and SCR catalyst usually being connected downstream of the diesel oxidation catalyst according to the invention, So are arranged downstream.
  • Diesel oxidation catalyst for example a diesel particulate filter and / or a catalyst for the selective catalytic reduction of nitrogen oxides, diesel particulate filter and SCR catalyst usually being connected downstream of the diesel oxidation catalyst according to the invention, So are arranged downstream.
  • the SCR catalyst is disposed on the diesel particulate filter.
  • the initial zone was carried out with a washcoat, which was prepared analogously to the process described under a), with the difference that the total concentration of the noble metals used (on the porous aluminum-silicon mixed oxide and on the platinum-coated zeolites) 2.6- was higher.
  • a cordierite ceramic honeycomb was coated to 50% of its length as described in Example 1b). For coating the
  • the exit zone was a washcoat made the same
  • the diesel oxidation catalyst thus obtained is hereinafter called K3.
  • the total noble metal loading is 22.5 g / ft 3 , with the
  • Weight ratio of platinum and palladium in both zones is equal and each 1: 1.
  • the thermal masses are the same in both zones. c)
  • steps a) and b) were repeated, with the difference that in the entry zone 20 g / ft 3 Pt + 10 g / ft 3 Pd and in the exit zone 10 g / ft 3 Pt + 5 g / ft 3 Pd were used.
  • the diesel oxidation catalyst thus obtained is hereinafter called VK2.
  • the total noble metal loading is again 22.5 g / ft 3
  • the weight ratio of platinum and palladium is again the same in both zones, but is in each case 2: 1.
  • the thermal masses are the same in both zones. d)

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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Catalysts (AREA)

Abstract

L'invention concerne un catalyseur d'oxydation pour moteurs diesel divisé en zones, la première zone catalytiquement active et la deuxième zone catalytiquement active présentant des masses thermiques identiques. La première zone catalytiquement active et la deuxième zone catalytiquement active contiennent comme composants catalytiquement actifs respectivement du platine et du palladium. Le rapport pondéral entre le platine et le palladium dans la première zone catalytiquement active et la deuxième zone catalytiquement active est respectivement identique, ou plus élevé dans la première zone catalytiquement active que dans la deuxième zone catalytiquement active, et la concentration totale de platine et de palladium dans la première zone catalytiquement active est plus élevée que dans la deuxième zone catalytiquement active.
EP13799516.3A 2012-12-06 2013-12-02 Catalyseur à oxydation pour moteurs diesel divisé en zones Withdrawn EP2928595A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13799516.3A EP2928595A1 (fr) 2012-12-06 2013-12-02 Catalyseur à oxydation pour moteurs diesel divisé en zones

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12195774 2012-12-06
EP13799516.3A EP2928595A1 (fr) 2012-12-06 2013-12-02 Catalyseur à oxydation pour moteurs diesel divisé en zones
PCT/EP2013/075205 WO2014086699A1 (fr) 2012-12-06 2013-12-02 Catalyseur à oxydation pour moteurs diesel divisé en zones

Publications (1)

Publication Number Publication Date
EP2928595A1 true EP2928595A1 (fr) 2015-10-14

Family

ID=47290763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13799516.3A Withdrawn EP2928595A1 (fr) 2012-12-06 2013-12-02 Catalyseur à oxydation pour moteurs diesel divisé en zones

Country Status (6)

Country Link
US (1) US20160279610A1 (fr)
EP (1) EP2928595A1 (fr)
JP (1) JP2016500331A (fr)
KR (1) KR20150093203A (fr)
CN (1) CN104797334A (fr)
WO (1) WO2014086699A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102401150B1 (ko) * 2016-07-19 2022-05-25 우미코레 아게 운트 코 카게 디젤 산화 촉매 컨버터
JP7245613B2 (ja) * 2018-07-05 2023-03-24 株式会社キャタラー 排ガス浄化触媒装置
CN115387886B (zh) * 2022-09-23 2024-06-07 天津瑞合环保科技有限公司 带催化剂浆料涂层的内燃机车颗粒过滤器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0600130D0 (en) * 2006-01-06 2006-02-15 Johnson Matthey Plc Exhaust system comprising zoned oxidation catalyst
US7534738B2 (en) * 2006-11-27 2009-05-19 Nanostellar, Inc. Engine exhaust catalysts containing palladium-gold
WO2008088649A1 (fr) * 2007-01-17 2008-07-24 Nanostellar, Inc. Catalyseurs d'échappement de moteur contenant du palladium-or
US8557203B2 (en) * 2009-11-03 2013-10-15 Umicore Ag & Co. Kg Architectural diesel oxidation catalyst for enhanced NO2 generator
KR101765354B1 (ko) * 2009-11-20 2017-08-07 바스프 에스이 존형 촉매화 매연 필터
CN102781544B (zh) * 2010-02-23 2015-12-02 巴斯夫欧洲公司 改进的催化烟灰过滤器
KR20130129241A (ko) * 2010-12-14 2013-11-27 우미코레 아게 운트 코 카게 강화된 ｎｏ2 발생기용 구조적 디젤 산화 촉매
US8524182B2 (en) * 2011-05-13 2013-09-03 Basf Se Catalyzed soot filter with layered design
EP2623183B1 (fr) * 2012-02-03 2015-08-26 Umicore AG & Co. KG Filtre à particules catalytique actif et son utilisation

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2014086699A1 *

Also Published As

Publication number Publication date
KR20150093203A (ko) 2015-08-17
CN104797334A (zh) 2015-07-22
WO2014086699A1 (fr) 2014-06-12
JP2016500331A (ja) 2016-01-12
US20160279610A1 (en) 2016-09-29

Similar Documents

Publication Publication Date Title
EP2123345B1 (fr) Dispositif de nettoyage de gaz d'échappement diesel
DE102014110701B4 (de) Oxidationskatalysator zum Behandeln eines Abgases aus einem Dieselmotor, dessen Verwendungen und Verfahren zu dessen Herstellung
DE102012222804B4 (de) Abgassystem mit Substratmonolith, der einen SCR-Katalysator umfasst
EP3576865B1 (fr) Catalyseur pour la purification des effluents gazeux d'un moteur diesel
EP3452214B1 (fr) Catalyseur d'oxidation de diesel à trois zones
DE10308288A1 (de) Verfahren zur Entfernung von Stickoxiden aus dem Abgas eines mager betriebenen Verbrennungsmotors und Abgasreinigungsanlage hierzu
WO2011057649A1 (fr) Catalyseur d'oxydation pour diesel amélioré
DE112013000218T5 (de) In Zonen aufgeteilter katalysierter Substratmonolith
DE102014107667A1 (de) Katalysiertes filter zum behandeln von abgas
DE102012203461A1 (de) Katalysator und verfahren zur herstellung
WO2008022967A1 (fr) filtre à particules diesel revêtu catalytiquement, procédé pour sa fabrication et utilisation du filtre
DE102017116461A1 (de) Katalysator-bindemittel für filtersubstrate
WO2009049795A2 (fr) Revêtement de substrats présentant une grande résistance à l'abrasion et conférant simultanément aux substrats une porosité élevée
EP2653681B2 (fr) Utilisation d' un filtre à particules diésel revêtu pour éviter la contamination d' un catalysateur SCR
EP2632587A1 (fr) Catalyseur d'oxydation diesel
EP3623047B1 (fr) Catalyseur de réduction d'oxydes d'azote
WO2020169600A1 (fr) Catalyseur de réduction des oxydes d'azote
EP2382041B1 (fr) Catalyseur d'oxydation diesel exempt de vanadium, et son procédé de production
EP3487617B1 (fr) Catalyseur d'oxydation pour diesel
EP2928595A1 (fr) Catalyseur à oxydation pour moteurs diesel divisé en zones
EP3592458B1 (fr) Catalyseur diesel à oxydation contenant du manganèse
EP2656904A1 (fr) Catalyseur d'oxydation diesel
WO2017103040A1 (fr) Procédé pour éviter la contamination d'un catalyseur de réduction catalytique sélective (scr) avec du platine
DE102018100834A1 (de) Verfahren zur Herstellung eines SCR-Katalysators
DE102021107130B4 (de) Vorrichtung zur Erhöhung der Frischfiltration von Benzinpartikelfiltern

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20150706

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20181022

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20190302