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RU2019128130A - Каталитические композиции - Google Patents

Каталитические композиции Download PDF

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Publication number
RU2019128130A
RU2019128130A RU2019128130A RU2019128130A RU2019128130A RU 2019128130 A RU2019128130 A RU 2019128130A RU 2019128130 A RU2019128130 A RU 2019128130A RU 2019128130 A RU2019128130 A RU 2019128130A RU 2019128130 A RU2019128130 A RU 2019128130A
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Russia
Prior art keywords
catalyst composition
molecular sieve
catalytic
catalyst
group
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RU2019128130A
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English (en)
Inventor
Шианг СУНГ
Маркус КЕГЕЛЬ
Бьерн НОЙМАНН
Патрик МАККАНТИ
Original Assignee
Басф Корпорейшн
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Publication of RU2019128130A publication Critical patent/RU2019128130A/ru

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    • 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
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    • 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
    • B01J29/74—Noble metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • 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
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    • 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
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    • 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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    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
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  • Oil, Petroleum & Natural Gas (AREA)
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  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Exhaust Gas After Treatment (AREA)

Claims (26)

1. Каталитическая композиция, содержащая молекулярное сито, содержащее палладий и оксид церия.
2. Каталитическая композиция по п. 1, где молекулярное сито представляет собой мелкопористое молекулярное сито или молекулярное сито со средним размером пор.
3. Каталитическая композиция по п. 1, где молекулярное сито представляет собой мелкопористое молекулярное сито.
4. Каталитическая композиция по п. 1, где молекулярное сито представляет собой мелкопористое молекулярное сито, выбранное из группы, состоящей из типов каркасной структуры АСО, AEI, AEN, AFN, AFT, AFX, ANA, АРС, APD, ATT, CDO, СНА, DDR, DFT, EAB, EDI, EPI, EPJ, 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.
5. Каталитическая композиция по п. 1, где молекулярное сито представляет собой мелкопористое молекулярное сито, выбранное из группы типов каркасной структуры СНА, LEV, AEI, AFX, ERI, SFW, KFI, DDR и ITE.
6. Каталитическая композиция по п. 1, где молекулярное сито представляет собой СНА.
7. Каталитическая композиция по п. 1, где молекулярное сито представляет собой молекулярное сито со средним размером пор, выбранное из группы, состоящей из типов каркасной структуры AEL, AFO, АНТ, 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.
8. Каталитическая композиция по п. 7, где молекулярное сито со средним размером пор выбрано из группы, состоящей из типов каркасной структуры FER, MEL, MFI и STT.
9. Каталитическая композиция по п. 1, где молекулярное сито имеет соотношение диоксида кремния и оксида алюминия от около 1 до около 1000.
10. Каталитическая композиция по п. 1, где оксид церия присутствует в количестве от около 1% до около 50 мас. %, на основе общей массы каталитической композиции.
11. Каталитическая композиция по п. 1, где палладий присутствует в количестве от около 0,1% до около 5,0 мас. %, на основе общей массы каталитической композиции.
12. Каталитическая композиция по любому из пп. 1-11, где молекулярное сито дополнительно содержит один или более каталитически активных металлов, выбранных из группы, состоящей из меди, железа, марганца, магния, кобальта, никеля, платины и родия.
13. Каталитическая композиция по п. 12, где молекулярное сито дополнительно содержит один или более каталитически активных металлов, выбранных из группы, состоящей из марганца, магния и платины.
14. Каталитическая композиция по любому из пп. 1-11, где молекулярное сито не содержит дополнительно каталитически активные металлы.
15. Каталитическое изделие, содержащее каталитическое покрытие, расположенное на подложке, где каталитическое покрытие содержит один или более покрывающих слоев,
где по меньшей мере один покрывающий слой представляет собой слой каталитического покрытия, содержащий каталитическую композицию по любому из пп. 1-14.
16. Каталитическое изделие по п. 15, где каталитическая композиция присутствует в качестве нижнего покрывающего слоя.
17. Каталитическое изделие по п. 15, где каталитическая композиция присутствует в качестве верхнего покрывающего слоя.
18. Каталитическое изделие по п. 15, где каталитическая композиция присутствует в количестве от около 0,05 г/дюйм3 до около 7,0 г/дюйм3, на основе объема подложки.
19. Каталитическое изделие по п. 15, где металлы платиновой группы в общем присутствуют в количестве от около 2 г/фут3 до около 200 г/фут3, на основе подложки.
20. Каталитическое изделие по п. 15, где подложка представляет собой проточный монолит.
21. Каталитическое изделие по п. 16, где нижний покрывающий слой находится в прямом контакте с подложкой.
22. Каталитическое изделие по любому из пп. 15-20, где каталитическое покрытие содержит подслой.
23. Система для обработки выхлопного газа, содержащая каталитическое изделие по любому из пп. 15-22, где каталитическое изделие находится ниже по ходу потока и в сообщении по текучей среде с двигателем внутреннего сгорания.
24. Система для обработки выхлопного газа по п. 23, дополнительно содержащая второе каталитическое изделие, выбранное из группы, состоящей из инжектора мочевины, катализатора селективного каталитического восстановления, сажевого фильтра, катализатора окисления аммиака и катализатора-ловушки обедненных оксидов азота.
25. Способ обработки потока выхлопного газа, содержащего углеводороды, и/или монооксид углерода, и/или NOx, причем способ включает пропускание выхлопного потока через каталитическое изделие по любому из пп. 15-22 или через систему для обработки выхлопного газа по п. 23 или 24.
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