KR20080081031A - SCR에서의 NOx 환원이 개선된 제올라이트 촉매 - Google Patents
SCR에서의 NOx 환원이 개선된 제올라이트 촉매 Download PDFInfo
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- KR20080081031A KR20080081031A KR1020087016846A KR20087016846A KR20080081031A KR 20080081031 A KR20080081031 A KR 20080081031A KR 1020087016846 A KR1020087016846 A KR 1020087016846A KR 20087016846 A KR20087016846 A KR 20087016846A KR 20080081031 A KR20080081031 A KR 20080081031A
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Abstract
Description
Claims (10)
- 금속-촉진된 제올라이트 촉매의 합성이,a. 금속을 제올라이트 내로 이온 교환시키는 단계; 및b. 금속 교환된 제올라이트를 열수 처리로 처리하는 단계를 포함하고,c. 상기 촉매는, 상기 단계 b에 의하여 처리되지 않은 금속 교환된 제올라이트 촉매에 비하여 선택적 촉매 환원에서 개선된 NOx 환원 활성을 갖는, NOx의 선택적 촉매 환원을 위한 신규한 금속-촉진된 제올라이트 촉매의 제조 방법.
- 제1항에 있어서, 상기 제올라이트는 제올라이트 Y, 포자사이트, 초안정성 Y, ZSM-3, ZSM-20, CSZ-1, ECR-30, LZ-210, 제올라이트 L, 페리어라이트, MCM-22 및 오프레타이트로 구성된 군으로부터 선택되며, 상기 금속은 바나듐, 크롬, 망간, 철, 코발트, 니켈, 구리 및 세륨의 금속 이온으로 구성된 군으로부터 선택되는 것인 방법.
- 제1항에 있어서, 상기 금속 이온-교환은 pH가 약 2.5 내지 약 3.5인 수성 교환 용액중에서 실시되는 것인 방법.
- 제1항에 있어서, 상기 금속 교환된 제올라이트는 약 540℃ 내지 약 1,000℃의 온도에서 약 5 내지 약 100%의 증기 농도로 약 5 분 내지 약 250 시간 동안 열 수 처리하는 것인 방법.
- 제1항의 방법에 의하여 형성된 구리 함유 알루미노실리케이트 제올라이트 촉매.
- 골격외 알루미늄을 형성하도록 처리된 금속-촉진된 제올라이트 촉매를 포함하며, 상기 골격외 알루미늄의 대부분은 제올라이트 공극으로부터 제거된, 질소 산화물의 선택적 환원을 위한 열수 안정한 제올라이트 촉매.
- 제6항에 있어서, 전체 알루미늄의 65 중량% 미만이 제올라이트 공극에 잔존하는 제올라이트 촉매.
- 제6항에 있어서, 상기 제올라이트가 제올라이트 Y이고, 상기 금속이 구리인 금속-촉진된 제올라이트 촉매.
- 제6항에 있어서, 제올라이트는 직경이 2 내지 50 ㎚인 메소공극을 포함하며, 상기 메소공극은 공극 부피가 0.07 ㎤/g 이상인 것인 금속-촉진된 제올라이트 촉매.
- 배기 가스 또는 배출 가스 흐름을 제1항 또는 제6항의 금속-촉진된 제올라이 트 촉매와 접촉시키는 것을 포함하는, 선택적 촉매 환원에 의하여 암모니아 및 산소와 함께 배기 가스 또는 배출 가스 흐름 중의 NOx의 감소 방법.
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US75026105P | 2005-12-14 | 2005-12-14 | |
US60/750,261 | 2005-12-14 | ||
PCT/US2006/047711 WO2007070639A2 (en) | 2005-12-14 | 2006-12-14 | Zeolite catalyst with improved nox reduction in scr |
US11/639,182 US7704475B2 (en) | 2005-12-14 | 2006-12-14 | Zeolite catalyst with improved NOx reduction in SCR |
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US (2) | US7704475B2 (ko) |
EP (1) | EP1973633A2 (ko) |
JP (1) | JP5261189B2 (ko) |
KR (1) | KR101394774B1 (ko) |
CN (1) | CN101336129A (ko) |
BR (1) | BRPI0619944B8 (ko) |
RU (1) | RU2008128363A (ko) |
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DE10112444A1 (de) * | 2001-03-13 | 2002-10-02 | Krupp Uhde Gmbh | Verfahren zur Verringerung des Gehalts von N¶2¶O und NO¶x¶ in Gasen |
US6914026B2 (en) * | 2001-09-07 | 2005-07-05 | Engelhard Corporation | Hydrothermally stable metal promoted zeolite beta for NOx reduction |
GB0214968D0 (en) * | 2002-06-28 | 2002-08-07 | Johnson Matthey Plc | Zeolite-based NH SCR catalyst |
US6864202B2 (en) * | 2002-09-16 | 2005-03-08 | Indian Oil Corporation Limited | Process for preparing sodium silicate alkali solution depleted of sodium salt and enriched in silica |
AU2002347682A1 (en) * | 2002-11-25 | 2004-06-18 | Yara International Asa | Method for preparation and activation of multimetallic zeolite catalysts, a catalyst composition and application for n2o abatement |
EP1973633A2 (en) * | 2005-12-14 | 2008-10-01 | BASF Catalysts LLC | Zeolite catalyst with improved nox reduction in scr |
-
2006
- 2006-12-14 EP EP06845422A patent/EP1973633A2/en not_active Ceased
- 2006-12-14 KR KR1020087016846A patent/KR101394774B1/ko not_active Expired - Fee Related
- 2006-12-14 US US11/639,182 patent/US7704475B2/en not_active Expired - Fee Related
- 2006-12-14 JP JP2008545808A patent/JP5261189B2/ja not_active Expired - Fee Related
- 2006-12-14 WO PCT/US2006/047711 patent/WO2007070639A2/en active Application Filing
- 2006-12-14 RU RU2008128363/15A patent/RU2008128363A/ru not_active Application Discontinuation
- 2006-12-14 CN CNA200680051790XA patent/CN101336129A/zh active Pending
- 2006-12-14 BR BRPI0619944A patent/BRPI0619944B8/pt not_active IP Right Cessation
-
2008
- 2008-07-10 ZA ZA200806013A patent/ZA200806013B/xx unknown
-
2010
- 2010-01-13 US US12/686,663 patent/US7968068B2/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2010110502A1 (ko) * | 2009-03-24 | 2010-09-30 | 한국에너지기술연구원 | 철이온이 담지된 제올라이트 촉매 및 그 제조방법과 그 촉매를 이용한 암모니아 환원제에 의한 아산화질소 단독 혹은 아산화질소와 일산화질소의 동시 저감방법 |
KR20190038838A (ko) * | 2016-07-29 | 2019-04-09 | 바스프 코포레이션 | FAU-타입 골격 구조를 갖는 제올라이트성 물질의 제조 방법 및 NOx의 선택적 접촉 환원에서의 이의 용도 |
KR20200040311A (ko) * | 2017-09-07 | 2020-04-17 | 바스프 코포레이션 | 감소된 골격-외 알루미늄을 가진 제올라이트 |
US11633726B2 (en) | 2017-09-07 | 2023-04-25 | Basf Corporation | Zeolite with reduced extra-framework aluminum |
US12296319B2 (en) | 2019-06-26 | 2025-05-13 | Johnson Matthey Public Limited Company | Composite, zoned oxidation catalys for a compression ignition internal combustion engine |
US12318760B2 (en) | 2019-10-16 | 2025-06-03 | Johnson Matthey Public Limited Company | Composite, zone-coated, dual-use ammonia (AMOX) and nitric oxide oxidation catalyst |
US12343714B2 (en) | 2019-10-16 | 2025-07-01 | Johnson Matthey Public Limited Company | Composite, zoned oxidation catalyst for a compression ignition internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
US20100172814A1 (en) | 2010-07-08 |
US7968068B2 (en) | 2011-06-28 |
EP1973633A2 (en) | 2008-10-01 |
US20070134146A1 (en) | 2007-06-14 |
CN101336129A (zh) | 2008-12-31 |
WO2007070639A8 (en) | 2007-08-02 |
KR101394774B1 (ko) | 2014-05-15 |
WO2007070639A3 (en) | 2007-09-20 |
JP5261189B2 (ja) | 2013-08-14 |
WO2007070639A2 (en) | 2007-06-21 |
BRPI0619944A2 (pt) | 2011-10-25 |
US7704475B2 (en) | 2010-04-27 |
BRPI0619944B8 (pt) | 2018-03-20 |
JP2009519817A (ja) | 2009-05-21 |
BRPI0619944B1 (pt) | 2018-02-27 |
RU2008128363A (ru) | 2010-01-20 |
ZA200806013B (en) | 2009-10-28 |
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