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RU2019134058A - Одноблочный, вплотную соединенный катализатор scr/asc/pna/doc - Google Patents

Одноблочный, вплотную соединенный катализатор scr/asc/pna/doc Download PDF

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RU2019134058A
RU2019134058A RU2019134058A RU2019134058A RU2019134058A RU 2019134058 A RU2019134058 A RU 2019134058A RU 2019134058 A RU2019134058 A RU 2019134058A RU 2019134058 A RU2019134058 A RU 2019134058A RU 2019134058 A RU2019134058 A RU 2019134058A
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pna
catalytic article
zone
layer
catalyst
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RU2019134058A
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RU2759670C2 (ru
RU2019134058A3 (ru
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Хай-Ин ЧЭНЬ
Джозеф ФЕДЕЙКО
Дунся ЛЮ
Цзин ЛУ
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Джонсон Мэтти Паблик Лимитед Компани
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    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
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    • 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
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/60—Discontinuous, uneven properties of filter material, e.g. different material thickness along the longitudinal direction; Higher filter capacity upstream than downstream in same housing
    • 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
    • F01N2510/00—Surface coverings
    • F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
    • F01N2510/063—Surface coverings for exhaust purification, e.g. catalytic reaction zeolites
    • 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
    • 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
    • F01N2510/0684—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings having more than one coating layer, e.g. multi-layered coatings
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
    • 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
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Claims (32)

1. Каталитическое изделие, содержащее подложку, содержащую входной конец и выходной конец, первую зону, вторую зону и третью зону,
где первая зона содержит второй катализатор SCR;
где вторая зона содержит катализатор предотвращения проскока аммиака (ASC), содержащий смесь: (1) металла платиновой группы на носителе и (2) первого катализатора SCR;
где третья зона содержит катализатор («катализатор третьей зоны»), выбранный из группы, состоящей из дизельного катализатора окисления (DOC) и дизельного экзотермического катализатора (DEC);
где первая зона расположена выше по потоку перед второй зоной, и вторая зона расположена выше по потоку перед третьей зоной; и
где каталитическое изделие содержит пассивный адсорбер NOx (“PNA”).
2. Каталитическое изделие по п. 1, в котором первая зона содержит PNA.
3. Каталитическое изделие по п. 1, в котором вторая зона содержит PNA.
4. Каталитическое изделие по п. 1, в котором
ASC включен в первый слой;
катализатор третьей зоны включен во второй слой, который распространяется от выходного конца на длину, которая меньше полной длины подложки, при этом второй слой расположен поверх первого слоя и имеет меньшую длину, чем первый слой; и
второй катализатор SCR включен в слой, который распространяется от входного конца на длину, которая меньше полной длины подложки, и который по меньшей мере частично перекрывает первый слой.
5. Каталитическое изделие по п. 4, в котором первый слой распространяется от выходного конца на длину, которая меньше полной длины подложки.
6. Каталитическое изделие по п. 4, в котором первый слой распространяется от входного конца на длину, которая меньше полной длины подложки.
7. Каталитическое изделие по п. 4, в котором первый слой распространяется на полную длину подложки.
8. Каталитическое изделие по п. 4, в котором первый слой охватывает полную длину первой зоны и второй зоны.
9. Каталитическое изделие по п. 4, в котором первый слой дополнительно содержит PNA.
10. Каталитическое изделие по п. 9, в котором первый слой содержит участок, содержащий PNA («участок с PNA»), и участок с PNA расположен выше по потоку перед смесью.
11. Каталитическое изделие по п. 1, в котором смесь дополнительно содержит PNA.
12. Каталитическое изделие по п. 4, в котором первый слой содержит участок, содержащий PNA и третий катализатор SCR («участок с PNA/SCR»).
13. Каталитическое изделие по п. 12, в котором первый слой содержит участок с PNA/SCR и смесь, при этом участок с PNA/SCR расположен выше по потоку перед смесью.
14. Каталитическое изделие по п. 12, в котором первый слой содержит участок с PNA/SCR, при этом смесь расположена поверх участка с PNA/SCR.
15. Каталитическое изделие по п. 12, в котором первый слой содержит смесь, при этом участок с PNA/SCR расположен поверх смеси.
16. Каталитическое изделие по п. 1, в котором носитель содержит кремнийсодержащий материал, выбранный из группы, состоящей из: (1) диоксида кремния и (2) цеолита с отношением диоксида кремния к оксиду алюминия, превышающим 200.
17. Каталитическое изделие по п. 1, в котором металл платиновой группы присутствует на носителе в количестве от приблизительно 0,5% масс. до приблизительно 10% масс. от суммарной массы металла платиновой группы и носителя.
18. Каталитическое изделие по п. 1, в котором в указанной смеси весовое отношение первого катализатора SCR к металлу платиновой группы на носителе составляет от приблизительно 10:1 до приблизительно 50:1.
19. Каталитическое изделие по п. 1, в котором первый катализатор SCR и PNA имеются в соотношении, составляющем от 5:1 до 1:5.
20. Каталитическое изделие по п. 1, в котором PNA содержит металл платиновой группы на молекулярном сите.
21. Каталитическое изделие по п. 1, в котором PNA содержит Pd на цеолите.
22. Способ снижения выбросов вредных веществ из потока выхлопных газов, включающий контактирование потока выхлопных газов с каталитическим изделием по п. 1.
23. Способ по п. 22, в котором поток выхлопных газов имеет отношение аммиак : NOx, составляющее ≥1, когда температура потока выхлопных газов, входящего в каталитическое изделие, составляет ≤180°C.
24. Способ по п. 23, в котором поток выхлопных газов имеет отношение аммиак : NOx, составляющее >0,5, когда температура потока выхлопных газов, входящего в каталитическое изделие, составляет ≥180°C.
RU2019134058A 2017-03-30 2018-03-29 Одноблочный, вплотную соединенный катализатор scr/asc/pna/doc RU2759670C2 (ru)

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RU2759670C2 (ru) 2021-11-16
US20190001268A1 (en) 2019-01-03
GB201904214D0 (en) 2019-05-08
US11857925B2 (en) 2024-01-02
CN111050908B (zh) 2023-04-21
JP7224298B2 (ja) 2023-02-17
WO2018183639A1 (en) 2018-10-04
GB201805133D0 (en) 2018-05-16
BR112019020349B1 (pt) 2023-01-10
JP2020515394A (ja) 2020-05-28
RU2019134058A3 (ru) 2021-04-30
GB2571640B (en) 2021-04-14
GB2571640A (en) 2019-09-04

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