RU2018138395A - Фильтр для очистки выхлопного газа - Google Patents

Фильтр для очистки выхлопного газа Download PDF

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Publication number
RU2018138395A
RU2018138395A RU2018138395A RU2018138395A RU2018138395A RU 2018138395 A RU2018138395 A RU 2018138395A RU 2018138395 A RU2018138395 A RU 2018138395A RU 2018138395 A RU2018138395 A RU 2018138395A RU 2018138395 A RU2018138395 A RU 2018138395A
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Russia
Prior art keywords
exhaust gas
filter
paragraphs
gas according
catalytic
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RU2018138395A
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English (en)
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RU2018138395A3 (ru
Inventor
Сатоси СУМИЯ
Дайсуке ЙОКОТА
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Джонсон Мэтти Паблик Лимитед Компани
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Publication of RU2018138395A publication Critical patent/RU2018138395A/ru
Publication of RU2018138395A3 publication Critical patent/RU2018138395A3/ru

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2418—Honeycomb filters
    • 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
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    • 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
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    • 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
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    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
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    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/30—Honeycomb supports characterised by their structural details
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Nanotechnology (AREA)
  • Toxicology (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Filtering Materials (AREA)
  • Exhaust Gas After Treatment (AREA)

Claims (13)

1. Фильтр для очистки выхлопного газа, включающий в себя подложку, содержащую множество пористых участков,
где данные участки образуют траекторию течения выхлопного газа,
на данных участках обеспечен пористый каталитический слой, и данный каталитический слой, имеющий толщину 10 мкм или больше, обеспечен на, по меньшей мере, 20% от полной длины участков в их продольном направлении, и
данный каталитический слой, имеющий толщину 10 мкм или больше, не присутствует на участках, составляющих 15 мм от выходной стороны.
2. Фильтр для очистки выхлопного газа по п. 1, в котором количество нанесения каталитического компонента, образующего часть каталитического слоя, варьирует соответственно плотности каталитического компонента и объему пор каталитического слоя.
3. Фильтр для очистки выхлопного газа по п. 1 или 2, в котором средний диаметр пор в каталитическом слое составляет от 1 до 5 мкм.
4. Фильтр для очистки выхлопного газа по любому из пп. 1-3, в котором доля пустот в каталитическом слое составляет не больше чем 50%.
5. Фильтр для очистки выхлопного газа по любому из пп. 1-4, в котором доля пустот в данных участках составляет от 40% до 60%.
6. Фильтр для очистки выхлопного газа по любому из пп. 1-5, в котором средний диаметр пор в данных участках составляет от 10 мкм до 20 мкм.
7. Фильтр для очистки выхлопного газа по любому из пп. 1-6, в котором каталитический компонент может включать в себя, по меньшей мере, один элемент из платины и палладия и, по меньшей мере, один щелочной металл и редкоземельный металл.
8. Фильтр для очистки выхлопного газа по любому из пп. 1-7, в котором толщина каталитического слоя составляет от 10 мкм до 50 мкм.
9. Способ получения фильтра для очистки выхлопного газа по любому из пп. 1-8, включающий этап, на котором суспензию, включающую в себя каталитический компонент и органический порообразующий материал, наносят, чтобы образовать поры в каталитическом слое.
10. Способ получения фильтра для очистки выхлопного газа по п. 9, в котором среднее отношение длина/диаметр органического порообразующего материала составляет 1,5 или меньше.
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US20190211723A1 (en) 2019-07-11
US10233803B2 (en) 2019-03-19
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JP2019516541A (ja) 2019-06-20
BR112018069967A2 (pt) 2019-01-29
WO2017170669A1 (en) 2017-10-05
EP3436182A1 (en) 2019-02-06
RU2018138395A3 (ru) 2020-05-14
DE102017106374A1 (de) 2017-10-05

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