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RU2019128036A - Каталитические изделия - Google Patents

Каталитические изделия Download PDF

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Publication number
RU2019128036A
RU2019128036A RU2019128036A RU2019128036A RU2019128036A RU 2019128036 A RU2019128036 A RU 2019128036A RU 2019128036 A RU2019128036 A RU 2019128036A RU 2019128036 A RU2019128036 A RU 2019128036A RU 2019128036 A RU2019128036 A RU 2019128036A
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RU
Russia
Prior art keywords
catalytic article
catalytic
molecular sieve
oxide
cerium oxide
Prior art date
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RU2019128036A
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English (en)
Inventor
Шианг СУНГ
Маркус КЁГЕЛЬ
Бьёрн НОЙМАНН
Патрик МАККЭНТИ
Original Assignee
Басф Корпорейшн
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Publication of RU2019128036A publication Critical patent/RU2019128036A/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
    • F01N3/08—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
    • F01N3/101—Three-way catalysts
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
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    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
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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
    • 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
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—Nitrogen oxides
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    • 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
    • F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
    • F01N3/106—Auxiliary oxidation catalysts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • 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
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
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    • 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
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    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
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    • 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
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    • F01N2370/00—Selection of materials for exhaust purification
    • F01N2370/02—Selection of materials for exhaust purification used in catalytic reactors
    • F01N2370/04—Zeolitic material
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    • 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
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    • 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
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    • 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
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    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/18—Ammonia
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Claims (34)

1. Каталитическое изделие, содержащее каталитическое покрытие, расположенное на подложке, где каталитическое покрытие содержит нижний покрывающий слой на подложке, и верхний покрывающий слой на нижнем покрывающем слое, где:
нижний покрывающий слой содержит оксид церия содержащее молекулярное сито, а верхний покрывающий слой содержит металл платиновой группы на носителе на основе тугоплавкого оксида металла; или
нижний покрывающий слой содержит металл платиновой группы на носителе на основе тугоплавкого оксида металла, а верхний покрывающий слой содержит оксид церия содержащее молекулярное сито.
2. Каталитическое изделие по п. 1, где оксид церия содержащее молекулярное сито представляет собой мелкопористое молекулярное сито.
3. Каталитическое изделие по п. 1, где оксид церия содержащее молекулярное сито включает мелкопористое молекулярное сито с типом каркасной структуры, выбранным из группы, состоящей из ACO, AEI, AEN, AFN, AFT, AFX, ANA, APC, APD, ATT, CDO, CHA, DDR, DFT, EAB, EDI, EPI, ERI, GIS, GOO, IHW, ITE, ITW, LEV, KFI, MER, MON, NSI, OWE, PAU, PHI, RHO, RTH, SAT, SAV, SIV, THO, TSC, UEI, UFI, VNI, YUG, ZON, и их смесей или срастаний.
4. Каталитическое изделие по п. 1, где оксид церия содержащее молекулярное сито содержит молекулярное сито с типом каркасной структуры, выбранным из группы, состоящей из CHA, LEV, AEI, AFX, ERI, SFW, KFI, DDR, ITE, и их смесей или срастаний.
5. Каталитическое изделие по п. 1, где оксид церия содержащее молекулярное сито представляет собой CeCHA.
6. Каталитическое изделие по п. 1, где оксид церия содержащее молекулярное сито включает молекулярное сито со средним размером пор с типом каркасной структуры, выбранным из группы, состоящей из AEL, AFO, AHT, BOF, BOZ, CGF, CGS, CHI, DAC, EUO, FER, HEU, IMF, ITH, ITR, JRY, JSR, JST, LAU, LOV, MEL, MFI, MFS, MRE, MTT, MVY, MWW, NAB, NAT, NES, OBW, PAR, PCR, PON, PUN, RRO, RSN, SFF, SFG, STF, STI, STT, STW, SVR, SZR, TER, TON, TUN, UOS, VSV, WEI, WEN и их смесей или срастаний.
7. Каталитическое изделие по п. 1, где оксид церия содержащее молекулярное сито включает молекулярное сито с типом каркасной структуры, выбранным из группы, состоящей из FER, MEL, MFI, STT, и их смесей или срастаний.
8. Каталитическое изделие по п. 1, где оксид церия содержащее молекулярное сито содержит молекулярное сито ZSM-5.
9. Каталитическое изделие по п. 1, где оксид церия в оксид церия содержащем молекулярном сите присутствует в количестве от около 1% до около 50 мас.%, на основе общей массы оксид церия содержащего молекулярного сита.
10. Каталитическое изделие по п. 1, где оксид церия содержащее молекулярное сито присутствует при загрузке от около 0,05 г/дюйм3 до около 5,0 г/дюйм3, на основе общего объема подложки.
11. Каталитическое изделие по п. 1, где нижний слой дополнительно содержит молекулярное сито для адсорбции углеводородов.
12. Каталитическое изделие по п. 1, где оксид церия содержащее молекулярное сито дополнительно содержит один или более каталитически активных металлов, выбранных из группы, состоящей из меди, железа, марганца, магния, кобальта, никеля, платины, палладия и родия.
13. Каталитическое изделие по п. 12, где один или более каталитически активных металлов присутствуют при загрузке от около 3 г/фут3 до около 100 г/фут3, на основе общего объема подложки.
14. Каталитическое изделие по п. 1, где носитель на основе тугоплавкого оксида металла содержит оксид алюминия, оксид титана, оксид циркония; смесь оксида алюминия с одним или более из оксида титана, оксида циркония и оксида церия; оксид церия, нанесенный на оксид алюминия; оксид титана, нанесенный на оксид алюминия; диоксид кремния-оксид алюминия; алюмосиликаты; оксид алюминия-оксид циркония; оксид алюминия-оксид хрома; или оксид алюминия-оксид церия.
15. Каталитическое изделие по п. 1, где металл платиновой группы присутствует при загрузке от около 2 г/фут3 до около 200 г/фут3, на основе общего объема подложки.
16. Каталитическое изделие по п. 1, где подложкой является фильтр с пористыми проточными стенками.
17. Каталитическое изделие по п. 1, где подложкой является проточный монолит.
18. Каталитическое изделие по п. 1, где нижний покрывающий слой находится в прямом контакте с подложкой.
19. Каталитическое изделие по п. 1, где верхний покрывающий слой находится в прямом контакте с нижним покрывающим слоем.
20. Каталитическое изделие по п. 1, где каталитическое покрытие содержит подслой.
21. Каталитическое изделие по п. 1, где каталитическое покрытие содержит покрывающий слой.
22. Каталитическое изделие по п. 1, где каталитическое покрытие содержит промежуточный слой между верхним и нижним покрывающими слоями.
23. Каталитическое изделие по п. 1, где каталитическое покрытие содержит подслой, покрывающий слой или промежуточный слой, где один или более из указанных слоев в основном свободны от компонентов металла платиновой группы.
24. Каталитическое изделие по п. 1, где каталитическое покрытие присутствует при загрузке от около 0,3 г/дюйм3 до около 7 г/дюйм3, на основе общего объема подложки.
25. Каталитическое изделие по п. 1, где верхний покрывающий слой перекрывает весь нижний покрывающий слой.
26. Каталитическое изделие по п. 1, где нижний покрывающий слой простирается по всей длине оси подложки.
27. Каталитическое изделие по п. 1, где верхний покрывающий слой простирается по всей длине оси подложки.
28. Каталитическое изделие по п. 1, где нижний покрывающий слой простирается на от около 10% до около 95% от длины оси подложки, либо от входного, либо от выходного конца.
29. Каталитическое изделие по любому из пп. 1-26, или 28, где верхний покрывающий слой простирается на от около 10% до около 95% от длины оси подложки, либо от входного, либо от выходного конца.
30. Система обработки выхлопного газа, содержащая каталитическое изделие по любому из пп. 1-29, расположенное ниже по ходу потока и в сообщении по текучей среде с двигателем внутреннего сгорания.
31. Система обработки выхлопного газа по п. 30, дополнительно содержащая каталитическое изделие, выбранное из группы, состоящей из инжектора мочевины, катализатора селективного каталитического восстановления, дизельного катализатора окисления, сажевого фильтра, катализатора окисления аммиака, и катализатора-ловушки обедненных оксидов азота.
32. Способ обработки потока выхлопного газа, содержащего углеводороды и/или монооксид углерода и/или NOx, причем способ включает пропускание потока выхлопного газа через каталитическое изделие по любому из пп. 1-29 или систему по п. 30 или 31.
RU2019128036A 2017-02-08 2018-02-07 Каталитические изделия RU2019128036A (ru)

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