KR101948254B1 - 대결정 유기물-비함유 차바자이트, 이의 제조 및 사용 방법 - Google Patents
대결정 유기물-비함유 차바자이트, 이의 제조 및 사용 방법 Download PDFInfo
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Abstract
Description
도 1은 10% 물/공기하에 700℃에서 16시간 동안 스티밍한 후 SAR을 변화시키고 Cu-투입을 변화시킨 Cu-차바자이트 물질에 대한 SCR 데이터를 비교한 것이다. NOx의 NH3-SCR에 대한 반응 조건은 다음과 같다: 500ppm NOx; NH3/NO=1.0; 5부피% 02; 0.6% H20; 나머지 N2; 공간 속도=50,000 h-1.
도 2는 실시예 1에 기재된 차바자이트 물질의 주사 전자 현미경 사진(SEM)이다.
도 3은 실시예 2에 기재된 차바자이트 물질의 주사 전자 현미경 사진(SEM)이다.
도 4는 실시예 3에 기재된 차바자이트 물질의 주사 전자 현미경 사진(SEM)이다.
도 5는 실시예 4에 기재된 차바자이트 물질의 주사 전자 현미경 사진(SEM)이다.
도 6은 실시예 2에 기재된 차바자이트 물질의 X-선 회절 패턴이다.
도 7은 실시예 3에 기재된 차바자이트 물질의 X-선 회절 패턴이다.
도 8은 실시예 4에 기재된 차바자이트 물질의 X-선 회절 패턴이다.
Claims (26)
- 유기 구조 유도제(organic structural directing agent)의 사용 없이 합성된 알루미노실리케이트 제올라이트를 포함하는 미공성 결정질 물질로서,
상기 제올라이트가, 5 내지 15 범위의 알루미나에 대한 실리카 비(silica-to-alumina ratio: SAR), 및 0.5 마이크론 초과의 결정 크기를 지니는 구리-함유 차바자이트(chabazite: CHA)를 형성시키기 위해, 구리를 지니는 차바자이트 구조물을 포함하고,
상기 구리-함유 차바자이트가 최대 10부피%의 수증기의 존재하에 700℃에서 16시간 동안의 노출 후에 60% 이상의 표면적을 유지하는, 미공성 결정질 물질. - 제 1항에 있어서, 상기 구리가 액체-상 또는 고체 이온-교환에 의해 도입되거나 직접-합성에 의해 혼입되는, 미공성 결정질 물질.
- 제 2항에 있어서, Cu/Al 몰비가 0.08 이상인, 미공성 결정질 물질.
- 삭제
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- 배기 가스 중 NOx의 선택적 촉매 환원(selective catalytic reduction: SCR) 방법으로서, 유기 구조 유도제 사용 없이 합성된 구리-함유 차바자이트(CHA)형 제올라이트를 포함하는 물품과 배기 가스를 접촉시키는 단계를 포함하고,
상기 제올라이트가 0.5 마이크론 초과의 결정 크기 및 5 내지 15의 알루미나에 대한 실리카 비(SAR)를 지니고,
상기 구리-함유 차바자이트가 최대 10부피%의 수증기의 존재하에 700℃에서 16시간 동안의 노출 후에 60% 이상의 표면적을 유지하는, 방법. - 제 7항에 있어서, 상기 접촉시키는 단계가 암모니아, 우레아 또는 암모니아 발생 화합물의 존재하에서 수행되는 방법.
- 삭제
- 제 7항에 있어서, 상기 구리가 액체-상 또는 고체 이온-교환에 의해 도입되거나 직접-합성에 의해 혼입되는 방법.
- 제 7항에 있어서, 상기 구리가 0.08 이상의 Cu/Al 몰비인 방법.
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- 제 7항에 있어서, 상기 물품이 채널 또는 벌집 모양 바디(body); 충전층(packed bed); 미소구체; 또는 구조적 조각의 형태인 방법.
- 제 22항에 있어서, 상기 충전층이 볼, 페블(pebble), 펠릿, 정제, 압출물(extrudate), 다른 입자, 또는 이들의 조합물을 포함하는 방법.
- 제 22항에 있어서, 상기 구조적 조각이 판 또는 튜브의 형태인 방법.
- 제 22항에 있어서, 채널 또는 벌집 모양 바디 또는 구조적 조각이 차바자이트 제올라이트를 포함하는 혼합물을 압출시킴으로써 형성되는 방법.
- 제 22항에 있어서, 채널 또는 벌집 모양 바디 또는 구조적 조각이 예비형성된 기재 상에 차바자이트 제올라이트를 포함하는 혼합물을 코팅하거나 디포지션(deposition)시킴으로써 형성되는 방법.
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US201161476575P | 2011-04-18 | 2011-04-18 | |
US61/476,575 | 2011-04-18 | ||
PCT/US2012/033948 WO2012145323A1 (en) | 2011-04-18 | 2012-04-17 | Large crystal, organic-free chabazite, methods of making and using the same |
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KR1020137030394A Active KR101830326B1 (ko) | 2011-04-18 | 2012-04-17 | 대결정 유기물-비함유 차바자이트, 이의 제조 및 사용 방법 |
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US (1) | US20120269719A1 (ko) |
EP (1) | EP2699345A4 (ko) |
JP (1) | JP6169069B2 (ko) |
KR (2) | KR101948254B1 (ko) |
CN (1) | CN103561865B (ko) |
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GB2464478A (en) † | 2008-10-15 | 2010-04-21 | Johnson Matthey Plc | Aluminosilicate zeolite catalyst and use thereof in exhaust gas after-treatment |
DK2646149T3 (da) * | 2010-12-02 | 2020-06-29 | Johnson Matthey Plc | Metalholdig zeolitkatalysator |
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CN103561865A (zh) | 2014-02-05 |
KR20140027280A (ko) | 2014-03-06 |
KR20180021204A (ko) | 2018-02-28 |
KR101830326B1 (ko) | 2018-02-20 |
CN103561865B (zh) | 2016-09-07 |
WO2012145323A1 (en) | 2012-10-26 |
US20120269719A1 (en) | 2012-10-25 |
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JP6169069B2 (ja) | 2017-07-26 |
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