KR100871898B1 - 디젤 엔진의 배기가스 정화 장치 - Google Patents
디젤 엔진의 배기가스 정화 장치 Download PDFInfo
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Abstract
Description
Claims (17)
- 디젤 엔진의 배기 통로에 삽입되는 배기 가스 정화장치에 있어서, 은(Ag) 성분, 구리(Cu) 성분 또는 이들의 혼합물이 담체에 대하여 0.1 내지 10중량%로 담지된 질소산화물 저감 촉매부와, 백금족 촉매가 담지된 입자 제거 필터부가 배기가스의 흐름에 대해 상류로부터 순차적으로 구비되며, 질소 산화물 저감 촉매부의 전단부에 디젤 분사 인젝터가 설치된 디젤 엔진의 배기가스 정화 장치.
- 제 1 항에 있어서,상기 질소 산화물 저감 촉매부는 각각의 촉매부가 다층으로 인접하여 배열되는 것을 특징으로 하는 디젤 엔진의 배기가스 정화 장치.
- 제 2항에 있어서,상기 인접 촉매부는 서로 다른 촉매 조성 또는 함량을 가지는 것을 특징으로 하는 디젤 엔진의 배기가스 정화 장치.
- 삭제
- 제 1항에 있어서,상기 백금족 촉매 성분은 Pt, Pd, Ir 및 Rh으로 이루어진 군으로부터 선택된 1종 이상인 것을 특징으로 하는 디젤 엔진의 배기가스 정화 장치.
- 제 5항에 있어서,상기 입자 제거 필터는 백금(Pt) 성분이 담지되어 있는 것을 특징으로 하는 디젤 엔진의 배기가스 정화 장치.
- 제 1항에 있어서,상기 입자 제거 필터는 내열성 세라믹 또는 금속 재질로 이루어진 지지체 상에 알루미나, 실리카, 티타니아, 세리아, 지르코니아 또는 제올라이트로부터 선택되는 1종이상의 담체가 코팅되어 있는 것을 특징으로 하는 디젤 엔진의 배기가스 정화 장치.
- 제 7항에 있어서,상기 입자 제거 필터는 담체가 코팅된 지지체에 대하여 0.01 내지 5중량%의 백금(Pt) 성분이 담지되어 있는 것을 특징으로 하는 디젤 엔진의 배기가스 정화 장치.
- 제 8 항에 있어서,상기 입자제거필터에 V, W, Mo, Mg 또는 K로부터 선택되는 1종 이상의 산화조촉매 성분이 추가로 담지되는 디젤엔진의 배기가스 정화장치.
- 제 9 항에 있어서,상기 산화조촉매 성분이 V, W 또는 Mo로부터 선택되는 1종 이상의 산화조촉매 성분인 경우는 담체가 코팅된 지제체에 대하여 0.01~2 중량%이고, Mg 또는 K로부터 선택되는 1종 이상의 산화조촉매 성분인 경우는 담체가 코팅된 지제체에 대하여 0.01~1 중량%인 것을 특징으로 하는 디젤엔진의 배기가스 정화장치.
- 삭제
- 제 1항에 있어서,상기 질소산화물 저감촉매부는 내열성 세라믹 또는 금속 재질로 이루어진 지지체 상에 알루미나, 실리카, 티타니아, 세리아, 지르코니아 또는 제올라이트로부터 선택되는 1종 이상의 담체가 코팅되어 있는 것을 특징으로 하는 디젤 엔진의 배기가스 정화 장치.
- 제 12항에 있어서,상기 질소 산화물 저감 촉매부는 은(Ag) 성분, 구리(Cu) 성분 또는 이들의 혼합물 중에서 은(Ag) 성분이 담지된 것을 특징으로 하는 디젤 엔진의 배기가스 정화 장치.
- 제 13항에 있어서,상기 질소 산화물 저감 촉매부는 담체에 대하여 0.0001 내지 0.5중량%의 백금족 촉매 성분이 추가로 담지되어 있는 것을 특징으로 하는 디젤 엔진의 배기가스 정화 장치.
- 제 14 항에 있어서,상기 질소 산화물 저감 촉매부는 담체에 대하여 0.001 내지 0.1중량%의 백금족 촉매 성분이 추가로 담지되어 있는 것을 특징으로 하는 디젤 엔진의 배기가스 정화 장치.
- 제 15 항에 있어서,상기 백금족 촉매 성분은 Pt, Pd, Ir 및 Rh으로 이루어진 군으로부터 선택된 1종 이상인 것을 특징으로 하는 디젤 엔진의 배기가스 정화 장치.
- 제 16항에 있어서,상기 백금족 촉매 성분이 백금(Pt)임을 특징으로 하는 디젤 엔진의 배기가스 정화 장치.
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PCT/KR2006/003536 WO2007049851A1 (en) | 2005-10-28 | 2006-09-06 | Exhaust gas purifying device for diesel engine |
US12/084,208 US8506892B2 (en) | 2005-10-28 | 2006-09-06 | Exhaust gas purifying device for diesel engine |
JP2008537575A JP2009513335A (ja) | 2005-10-28 | 2006-09-06 | ディーゼルエンジンの排気ガス浄化装置 |
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