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RU2008128363A - ЦЕОЛИТНЫЙ КАТАЛИЗАТОР С УЛУЧШЕННЫМ ВОССТАНОВЛЕНИЕМ NOх В SCR - Google Patents

ЦЕОЛИТНЫЙ КАТАЛИЗАТОР С УЛУЧШЕННЫМ ВОССТАНОВЛЕНИЕМ NOх В SCR Download PDF

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Publication number
RU2008128363A
RU2008128363A RU2008128363/15A RU2008128363A RU2008128363A RU 2008128363 A RU2008128363 A RU 2008128363A RU 2008128363/15 A RU2008128363/15 A RU 2008128363/15A RU 2008128363 A RU2008128363 A RU 2008128363A RU 2008128363 A RU2008128363 A RU 2008128363A
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RU
Russia
Prior art keywords
zeolite
metal
catalyst
promoted
zeolite catalyst
Prior art date
Application number
RU2008128363/15A
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English (en)
Inventor
Айвор БАЛЛ (US)
Айвор БАЛЛ
Ахмад МОИНИ (US)
Ахмад МОИНИ
Джералд Стивен КОРМЕР (US)
Джералд Стивен КОРМЕР
Джозеф Аллан ПАТЧЕТТ (US)
Джозеф Аллан ПАТЧЕТТ
Уилльям Майкл ЯГЛОВСКИ (US)
Уилльям Майкл ЯГЛОВСКИ
Стан РОТ (US)
Стан РОТ
Original Assignee
Басф Каталистс Ллк (Us)
Басф Каталистс Ллк
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Publication date
Application filed by Басф Каталистс Ллк (Us), Басф Каталистс Ллк filed Critical Басф Каталистс Ллк (Us)
Publication of RU2008128363A publication Critical patent/RU2008128363A/ru

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    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
    • B01J29/10—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y containing iron group metals, noble metals or copper
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    • 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
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Abstract

1. Способ получения нового металл-промотированного цеолитного катализатора для селективного каталитического восстановления NOx, упомянутый катализатор синтезируют способом, включающим стадии: ! - ионообмен упомянутого металла в цеолит, ! - последующее обрабатывание упомянутого металлобмененного цеолита гидротермальной обработкой, и ! - где упомянутый катализатор имеет улучшенную активность восстановления NOx в селективном каталитическом восстановлении по сравнению с металл-обмененным цеолитным катализатором не обработанным стадией б. ! 2. Способ по п.1, в котором упомянутый цеолит выбирают из группы, включающей цеолит Y, фоязиты, ультрастабильный Y, ZSM-3, ZSM-20, CSZ-1, ECR-30, LZ-210, цеолит L, ферриерит, МСМ-22 и оффретит, и в котором упомянутый металл выбирают из группы, включающей ионы металла ванадия, хрома, марганца, железа, кобальта, никеля, меди и церия. ! 3. Способ по п.1, в котором упомянутый ионный обмен металла проходит в водном обменном растворе с рН от приблизительно 2.5 до приблизительно 3.5. ! 4. Способ по п.1, в котором упомянутый металлобмененный цеолит гидротермально обрабатывают при температуре от приблизительно 540 до приблизительно 1000°С, паром с концентрацией от приблизительно 5 до приблизительно 100%, на протяжении от приблизительно 5 мин до приблизительно 250 ч. ! 5. Медь содержащий алюмосиликатный цеолитный катализатор образованный способом по п.1. ! 6. Гидротермально стабильный цеолитный катализатор для селективного восстановления оксидов азота, упомянутый катализатор, включает: металл-промотированный цеолитный катализатор, в котором упомянутый металл-промотированный цеолит должен быть обработан, чтобы образовать ал�

Claims (10)

1. Способ получения нового металл-промотированного цеолитного катализатора для селективного каталитического восстановления NOx, упомянутый катализатор синтезируют способом, включающим стадии:
- ионообмен упомянутого металла в цеолит,
- последующее обрабатывание упомянутого металлобмененного цеолита гидротермальной обработкой, и
- где упомянутый катализатор имеет улучшенную активность восстановления NOx в селективном каталитическом восстановлении по сравнению с металл-обмененным цеолитным катализатором не обработанным стадией б.
2. Способ по п.1, в котором упомянутый цеолит выбирают из группы, включающей цеолит Y, фоязиты, ультрастабильный Y, ZSM-3, ZSM-20, CSZ-1, ECR-30, LZ-210, цеолит L, ферриерит, МСМ-22 и оффретит, и в котором упомянутый металл выбирают из группы, включающей ионы металла ванадия, хрома, марганца, железа, кобальта, никеля, меди и церия.
3. Способ по п.1, в котором упомянутый ионный обмен металла проходит в водном обменном растворе с рН от приблизительно 2.5 до приблизительно 3.5.
4. Способ по п.1, в котором упомянутый металлобмененный цеолит гидротермально обрабатывают при температуре от приблизительно 540 до приблизительно 1000°С, паром с концентрацией от приблизительно 5 до приблизительно 100%, на протяжении от приблизительно 5 мин до приблизительно 250 ч.
5. Медь содержащий алюмосиликатный цеолитный катализатор образованный способом по п.1.
6. Гидротермально стабильный цеолитный катализатор для селективного восстановления оксидов азота, упомянутый катализатор, включает: металл-промотированный цеолитный катализатор, в котором упомянутый металл-промотированный цеолит должен быть обработан, чтобы образовать алюминий экстра-основы и в котором значительная часть упомянутого алюминия экстра-основы удаляется из цеолитных пор.
7. Цеолитный катализатор по п.6, в котором меньше чем 65 маc. % общего алюминия находится в цеолитных порах.
8. Металл-промотированный цеолитный катализатор по п.6, в котором упомянутый цеолит представляет собой цеолит Y и упомянутый металл представляет собой медь.
9. Металл-промотированный цеолитный катализатор по п.6, в котором цеолит содержит мезопоры с диаметром 2 - 50 нм и упомянутые мезопоры имеют объем пор по меньшей мере 0.07 см3/г.
10. Способ восстановления NOx в потоке выхлопного газа или топочного газа аммиаком и кислородом при помощи селективного каталитического восстановления упомянутым способом, включающим контактирование упомянутого потока выхлопного газа или топочного газа с металл-промотированным цеолитным катализатором по п.1 или 6.
RU2008128363/15A 2005-12-14 2006-12-14 ЦЕОЛИТНЫЙ КАТАЛИЗАТОР С УЛУЧШЕННЫМ ВОССТАНОВЛЕНИЕМ NOх В SCR RU2008128363A (ru)

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BRPI0619944B8 (pt) 2018-03-20
JP5261189B2 (ja) 2013-08-14
EP1973633A2 (en) 2008-10-01
CN101336129A (zh) 2008-12-31
US7968068B2 (en) 2011-06-28
ZA200806013B (en) 2009-10-28
US20070134146A1 (en) 2007-06-14
JP2009519817A (ja) 2009-05-21
BRPI0619944B1 (pt) 2018-02-27
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