[go: up one dir, main page]

RU2018101292A - Scr-катализированный сажевый фильтр с интегрированным катализатором-ловушкой оксидов азота в условиях обедненной смеси для применения в пассивном селективном каталитическом восстановлении - Google Patents

Scr-катализированный сажевый фильтр с интегрированным катализатором-ловушкой оксидов азота в условиях обедненной смеси для применения в пассивном селективном каталитическом восстановлении Download PDF

Info

Publication number
RU2018101292A
RU2018101292A RU2018101292A RU2018101292A RU2018101292A RU 2018101292 A RU2018101292 A RU 2018101292A RU 2018101292 A RU2018101292 A RU 2018101292A RU 2018101292 A RU2018101292 A RU 2018101292A RU 2018101292 A RU2018101292 A RU 2018101292A
Authority
RU
Russia
Prior art keywords
walls
substrate
channels
flow
particulate filter
Prior art date
Application number
RU2018101292A
Other languages
English (en)
Other versions
RU2018101292A3 (ru
Inventor
Герд ГРУБЕРТ
Торстен НОЙБАУЕР
Альфред ПУНКЕ
Original Assignee
Басф Се
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 Басф Се filed Critical Басф Се
Publication of RU2018101292A publication Critical patent/RU2018101292A/ru
Publication of RU2018101292A3 publication Critical patent/RU2018101292A3/ru

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
    • B01D53/9422—Processes characterised by a specific catalyst for removing nitrogen oxides by NOx storage or reduction by cyclic switching between lean and rich exhaust gases (LNT, NSC, NSR)
    • 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
    • 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
    • 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
    • B01D53/9463—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 one brick
    • B01D53/9472—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 one brick in different zones
    • 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
    • B01J23/002—Mixed oxides other than spinels, e.g. perovskite
    • 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
    • B01J23/42—Platinum
    • 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
    • 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
    • B01J23/46—Ruthenium, rhodium, osmium or iridium
    • B01J23/464—Rhodium
    • 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
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/83—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides
    • 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
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
    • B01J29/76—Iron group metals or copper
    • B01J29/763—CHA-type, e.g. Chabazite, LZ-218
    • 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
    • B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
    • 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
    • B01J35/57—Honeycombs
    • 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
    • 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
    • B01J37/024—Multiple impregnation or coating
    • B01J37/0246—Coatings comprising a zeolite
    • 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
    • B01J37/0248—Coatings comprising impregnated particles
    • 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
    • B01J37/04—Mixing
    • 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
    • B01J37/08—Heat treatment
    • B01J37/082—Decomposition and pyrolysis
    • 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
    • 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
    • F01N3/2066—Selective catalytic reduction [SCR]
    • 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
    • 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
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • 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
    • B01D2255/102—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
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1025—Rhodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/204—Alkaline earth metals
    • B01D2255/2042—Barium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/204—Alkaline earth metals
    • B01D2255/2047—Magnesium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B01D2255/2065—Cerium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20761—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/908—O2-storage component incorporated in the catalyst
    • 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
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/404—Nitrogen oxides other than dinitrogen oxide
    • 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
    • B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/06—Ceramic, e.g. monoliths
    • 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
    • F01N2370/00—Selection of materials for exhaust purification
    • F01N2370/02—Selection of materials for exhaust purification used in catalytic reactors
    • F01N2370/04—Zeolitic material
    • 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
    • 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
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F01N3/2073—Selective catalytic reduction [SCR] with means for generating a reducing substance from the exhaust gases
    • 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)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Toxicology (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Claims (32)

1. Катализированный сажевый фильтр (CSF), где CSF содержит пористую подложку с проточными стенками, катализатор-ловушку оксидов азота в условиях обедненной смеси (LNT) и катализатор для селективного каталитического восстановления (SCR),
причем подложка с проточными стенками содержит входной конец, выходной конец, длину по оси подложки, простирающуюся между входным концом и выходным концом, и множество каналов, определенных внутренними стенками подложки с проточными стенками, где множество каналов содержат входные каналы, имеющие открытый входной конец и закрытый выходной конец, и выходные каналы, имеющие закрытый входной конец и открытый выходной конец,
где LNT катализатор обеспечивается на части поверхности стенок входных каналов и на по меньшей мере части поверхности пор внутри стенок каналов под поверхностью стенок каналов, покрытых LNT катализатором, где часть стенок входных каналов, покрытых LNT катализатором, простирается от входного конца до х % длины по оси подложки, где 0<х<100,
где SCR катализатор обеспечивается на части поверхности стенок выходных каналов и на по меньшей мере части поверхности пор внутри стенок каналов под поверхностью стенок каналов, покрытых SCR катализатором, где часть стенок выходных каналов, покрытых LNT катализатором, простирается от выходного конца до 100-х % длины по оси подложки.
2. Катализированный сажевый фильтр по п. 1, где х находится в интервале от 5 до 95.
3. Катализированный сажевый фильтр по п. 1, где пористая подложка с проточными стенками представляет собой сотообразную подложку с поочередно закупоренными входными и выходными концами, так что каждая стенка подложки с проточными стенками соответственно имеет первую поверхность, которая представляет собой поверхность входного канала, и вторую поверхность, которая представляет собой поверхность выходного канала.
4. Катализированный сажевый фильтр по п. 1, где SCR катализатор содержит один или более цеолитов.
5. Катализированный сажевый фильтр по п. 4, где один или более цеолитов содержат один или более переходных металлов.
6. Катализированный сажевый фильтр по п. 1, где средний размер частиц D90 SCR катализатора составляет 25% или менее от среднего размера пор стенок подложки.
7. Катализированный сажевый фильтр по п. 1, где LNT катализатор содержит один или более щелочноземельных металлов.
8. Катализированный сажевый фильтр по п. 1, где LNT катализатор содержит один или более металлов платиновой группы.
9. Катализированный сажевый фильтр по любому из пп. 1-8, где LNT катализатор содержит один или более компонентов накопления кислорода.
10. Способ получения катализированного сажевого фильтра, включающий
(i) обеспечение пористой подложки с проточными стенками, содержащей входной конец, выходной конец, длину по оси подложки, простирающуюся между входным концом и выходным концом, и множество каналов, определенных внутренними стенками подложки с проточными стенками, где множество каналов содержат входные каналы, имеющие открытый входной конец и закрытый выходной конец, и выходные каналы, имеющие закрытый входной конец и открытый выходной конец,
(ii) пропитывание материала-носителя в форме частиц водным раствором соединения родия,
(iii) прокаливание пропитанного материала-носителя в форме частиц, полученного на (ii), для обеспечения порошка Rh на носителе,
(iv) смешивание материала-носителя в форме частиц с дистиллированной водой и последующее добавление водного раствора соединения палладия и соединения платины к нему для обеспечения первой суспензии,
(v) добавление порошка Rh на носителе, одного или более материалов накопления кислорода и одного или более соединений щелочноземельного металла к первой суспензии, полученной на (iv), для обеспечения второй суспензии,
(vi) необязательно измельчение второй суспензии, где указанная вторая суспензия проявляет средний размер частиц D90, который составляет 25% или менее от среднего размера пор стенок пористой подложки с проточными стенками,
(vii) суспендирование твердого SCR катализатора в дистиллированной воде и необязательно измельчение полученной смеси для обеспечения третьей суспензии, где указанная третья суспензия проявляет средний размер частиц D90, который составляет 25% или менее от среднего размера пор стенок пористой подложки с проточными стенками,
(viii) покрытие части стенок входных каналов подложки с проточными стенками посредством погружения входного конца подложки с проточными стенками во вторую суспензию до х% длины по оси подложки, простирающейся от входного конца, где 0<х<100,
(ix) удаление подложки с проточными стенками из второй суспензии и удаление избытка суспензии из входных каналов,
(x) покрытие части стенок выходных каналов подложки с проточными стенками посредством погружения выходного конца подложки с проточными стенками в третью суспензию до 100-х% длины по оси подложки, простирающейся от выходного конца,
(xi) удаление подложки с проточными стенками из третьей суспензии и удаление избытка суспензии из выходных каналов,
(xii) необязательно сушку и/или прокаливание покрытой подложки с проточными стенками.
11. Катализированный сажевый фильтр, являющийся получаемым и/или полученным согласно способу по п. 10.
12. Система для обработки выбросов, содержащая катализированный сажевый фильтр (CSF) по любому из пп. 1-9 или 11 и катализатор-ловушку оксидов азота в условиях обедненной смеси (LNT), расположенный выше по ходу потока CSF, где LNT и CSF находятся во флюидном сообщении друг с другом, так что выхлопной газ из двигателя внутреннего сгорания может протекать через LNT и затем через CSF,
где LNT содержит проточную подложку, содержащую входной конец, выходной конец, длину по оси подложки, простирающуюся между входным концом и выходным концом, и множество каналов, определенных внутренними стенками подложки с проточными стенками, и где проточная подложка покрыта LNT катализатором.
13. Система для обработки выбросов по п. 12, где LNT катализатор содержит один или более щелочноземельных металлов.
14. Система для обработки выбросов по п. 12 или 13, где LNT катализатор содержит один или более металлов платиновой группы.
15. Способ обработки выбросов из двигателя внутреннего сгорания, включающий направление выхлопного газа из двигателя внутреннего сгорания через систему для обработки выбросов, как определено в любом из пп. 12-14.
16. Применение катализированного сажевого фильтра по любому из пп. 1-9 или 11, или системы для обработки выбросов по любому из пп. 12-14 для обработки выбросов выхлопных газов.
RU2018101292A 2015-06-16 2016-06-15 Scr-катализированный сажевый фильтр с интегрированным катализатором-ловушкой оксидов азота в условиях обедненной смеси для применения в пассивном селективном каталитическом восстановлении RU2018101292A (ru)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP15172347 2015-06-16
EP15172347.5 2015-06-16
PCT/EP2016/063750 WO2016202855A1 (en) 2015-06-16 2016-06-15 Scr-catalyzed soot filter with integrated lean nox trap catalyst for use in passive selective catalytic reduction

Publications (2)

Publication Number Publication Date
RU2018101292A true RU2018101292A (ru) 2019-07-16
RU2018101292A3 RU2018101292A3 (ru) 2019-11-27

Family

ID=53434255

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2018101292A RU2018101292A (ru) 2015-06-16 2016-06-15 Scr-катализированный сажевый фильтр с интегрированным катализатором-ловушкой оксидов азота в условиях обедненной смеси для применения в пассивном селективном каталитическом восстановлении

Country Status (10)

Country Link
US (1) US20180185788A1 (ru)
EP (1) EP3310460B1 (ru)
JP (1) JP2018526195A (ru)
KR (1) KR20180017191A (ru)
CN (1) CN107690353A (ru)
BR (1) BR112017025847A2 (ru)
CA (1) CA2989729A1 (ru)
MX (1) MX2017016527A (ru)
RU (1) RU2018101292A (ru)
WO (1) WO2016202855A1 (ru)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109069999A (zh) * 2016-04-29 2018-12-21 庄信万丰股份有限公司 排气系统
KR20200110445A (ko) * 2018-02-05 2020-09-23 바스프 코포레이션 개선된 필터 특성을 갖는 4-원 전환 촉매
CN108979798B (zh) * 2018-03-28 2021-03-23 昆明贵研催化剂有限责任公司 一种汽油车颗粒捕集催化器及其制备方法
CN108636431A (zh) * 2018-04-20 2018-10-12 中自环保科技股份有限公司 一种壁流式lnt催化剂、制备方法和应用
DE102018110804B4 (de) * 2018-05-04 2024-06-27 Umicore Ag & Co. Kg Beschichteter Wandflussfilter
JP7467420B2 (ja) * 2018-08-31 2024-04-15 ビーエーエスエフ コーポレーション 排気ガス流を処理するための四元変換触媒
DE102019100099B4 (de) * 2019-01-04 2022-09-08 Umicore Ag & Co. Kg Verfahren zur Herstellung von katalytisch aktiven Wandflussfiltern, katalytisch aktiver Wandflussfilter und dessen Verwendung
US11073067B2 (en) 2019-01-10 2021-07-27 Deere & Company Exhaust gas treatment system and method with reductant injection and close-coupled treatment element
US12138619B2 (en) * 2019-03-20 2024-11-12 Basf Mobile Emissions Catalysts Llc Tunable NOx adsorber
US11187127B2 (en) 2019-06-28 2021-11-30 Deere & Company Exhaust gas treatment system and method with four-way catalyzed filter element
KR20220110760A (ko) * 2019-12-13 2022-08-09 바스프 코포레이션 저온 NOx 트랩핑을 위한 희박 NOx 트랩 플러스 저온 NOx 흡착 시스템
CN111617773B (zh) * 2020-06-04 2023-08-15 中自环保科技股份有限公司 一种高燃油起燃性能的doc催化涂层及其制备方法
EP3936221A1 (en) 2020-07-07 2022-01-12 UMICORE AG & Co. KG Catalysed particulate filter with enhanced passive soot functionality
US11883805B2 (en) * 2021-05-12 2024-01-30 Johnson Matthey Public Limited Company Catalytic composition
WO2023079264A1 (en) * 2021-11-02 2023-05-11 Johnson Matthey Public Limited Company Catalysts for gasoline exhaust gas treatments with improved ammonia emission control
WO2024023487A1 (en) * 2022-07-28 2024-02-01 Johnson Matthey Public Limited Company Catalytic filter for gasoline engine exhaust treatment
CN115518676B (zh) * 2022-09-13 2023-12-22 东风商用车有限公司 用于稀燃发动机尾气处理的催化剂制品及其应用

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2802101B1 (fr) 1999-12-10 2003-02-28 Aventis Pharma Sa Association de cymemazine et d'un neuroleptique atypique
DE10308287B4 (de) 2003-02-26 2006-11-30 Umicore Ag & Co. Kg Verfahren zur Abgasreinigung
DE10335785A1 (de) * 2003-08-05 2005-03-10 Umicore Ag & Co Kg Katalysatoranordnung und Verfahren zur Reinigung des Abgases von mager betriebenen Verbrennungsmotoren
DE102005005663A1 (de) * 2005-02-08 2006-08-17 Daimlerchrysler Ag Abgasnachbehandlungseinrichtung mit Partikelfilter
US7062904B1 (en) * 2005-02-16 2006-06-20 Eaton Corporation Integrated NOx and PM reduction devices for the treatment of emissions from internal combustion engines
GB0812544D0 (en) * 2008-07-09 2008-08-13 Johnson Matthey Plc Exhaust system for a lean burn IC engine
US9662611B2 (en) 2009-04-03 2017-05-30 Basf Corporation Emissions treatment system with ammonia-generating and SCR catalysts
US8293182B2 (en) 2010-05-05 2012-10-23 Basf Corporation Integrated SCR and AMOx catalyst systems
EP3103979B1 (de) 2010-09-13 2018-01-03 Umicore AG & Co. KG Katalysator zur entfernung von stickoxiden aus dem abgas von dieselmotoren
US8722000B2 (en) 2011-03-29 2014-05-13 Basf Corporation Multi-component filters for emissions control
US9527036B2 (en) 2012-11-12 2016-12-27 Umicore Ag & Co. Kg Catalyst system for treating NOx- and particle-containing diesel exhaust gas
GB201220912D0 (en) * 2012-11-21 2013-01-02 Johnson Matthey Plc Oxidation catalyst for treating the exhaust gas of a compression ignition engine
GB2535274B (en) * 2014-11-19 2019-06-12 Johnson Matthey Plc An exhaust system combining a molecular-sieve-containing SCR catalyst and a molecular-sieve-containing NOx adsorber catalyst

Also Published As

Publication number Publication date
CN107690353A (zh) 2018-02-13
JP2018526195A (ja) 2018-09-13
BR112017025847A2 (pt) 2018-08-14
US20180185788A1 (en) 2018-07-05
KR20180017191A (ko) 2018-02-20
EP3310460A1 (en) 2018-04-25
MX2017016527A (es) 2018-05-28
WO2016202855A1 (en) 2016-12-22
CA2989729A1 (en) 2016-12-22
EP3310460B1 (en) 2021-12-08
RU2018101292A3 (ru) 2019-11-27

Similar Documents

Publication Publication Date Title
RU2018101292A (ru) Scr-катализированный сажевый фильтр с интегрированным катализатором-ловушкой оксидов азота в условиях обедненной смеси для применения в пассивном селективном каталитическом восстановлении
RU2017144276A (ru) Катализированный сажевый фильтр для применения при пассивном селективном каталитическом восстановлении
RU2660737C2 (ru) Каталитический фильтр для обработки отработавшего газа
CN107269355B (zh) 蜂窝结构体
CN109736921B (zh) 用于处理废气的经催化的过滤器
US20120230881A1 (en) HONEYCOMB FILTERS FOR REDUCING NOx AND PARTICULATE MATTER IN DIESEL ENGINE EXHAUST
EP3081777B2 (en) Exhaust gas purification material
CN107262109A (zh) 蜂窝结构体
JP2013532049A5 (ru)
CN103402626B (zh) 用于制备催化微粒过滤器的方法和催化微粒过滤器
CN103796757B (zh) 催化颗粒过滤器及涂覆颗粒过滤器的方法
RU2019116211A (ru) Каталитический фильтр с пристеночным течением с частичным покрытием на поверхности
JP2008253961A (ja) 排ガス浄化フィルタとその製造方法
US8932546B2 (en) Catalytically active particulate filter and use thereof
CN111148890B (zh) 微粒过滤器上的scr催化涂层
CN108568308A (zh) 排气净化用催化剂
JP2015104695A (ja) 排ガス浄化用触媒
GB2517238A (en) Filter substrate comprising zone-coated catalyst washcoat
EP3015167A1 (en) Ammonia oxidation catalyst in scr system
US20180296979A1 (en) Exhaust gas purification material
KR102424106B1 (ko) 구역 코팅된 촉매화된 모노리스의 제조 방법

Legal Events

Date Code Title Description
FA92 Acknowledgement of application withdrawn (lack of supplementary materials submitted)

Effective date: 20200317