KR20140035982A - 냉 시동 촉매 및 배기 시스템에서 그것의 사용 - Google Patents
냉 시동 촉매 및 배기 시스템에서 그것의 사용 Download PDFInfo
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- KR20140035982A KR20140035982A KR1020137035085A KR20137035085A KR20140035982A KR 20140035982 A KR20140035982 A KR 20140035982A KR 1020137035085 A KR1020137035085 A KR 1020137035085A KR 20137035085 A KR20137035085 A KR 20137035085A KR 20140035982 A KR20140035982 A KR 20140035982A
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- catalyst
- zeolite
- cold start
- metal
- flow
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- 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
- B01J29/76—Iron group metals or copper
- B01J29/7615—Zeolite Beta
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- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
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Abstract
Description
NOx 저장 용량 결과 | ||
촉매 | 80℃에서 NOx 저장 용량 (g NO2/L) |
200℃이하에서 총 NOx 저장 용량 (g NO2/L) |
1A | 0.20 | 0.21 |
1B | 0.32 | 0.47 |
1C | 0.29 | 0.44 |
1D | 0.14 | nm |
1E | 0.17 | nm |
2A* | 0.13 | 0.30 |
2B* | 0.02 | 0.06 |
*비교예 nm = 측정불가 |
150℃이상에서 탄화수소(HC) 및 N2O 방출 | ||
촉매 | 예열 동안 최고 HC 농도 (ppm) | 예열 동안 최고 N2O 농도 (ppm) |
1A | 53 | 28 |
1B | 49 | 20 |
1C | 56 | 31 |
2A* | 119 | 126 |
2B* | 108 | 74 |
*비교예 |
예열 동안 90% CO 전환을 위한 온도 (T90) | |
촉매 | T90 (℃) |
1A | 145 |
1B | 154 |
1C | 150 |
2A* | 102 |
2B* | 219 |
*비교예 |
400℃에서 NO2/NOx 비 | |
촉매 | NO2/NOx |
1A | 0.63 |
1B | 0.62 |
1C | 0.74 |
2A* | 0.89 |
2B* | 0.73 |
*비교예 |
화학량론적 조건에서 촉매 1C의 성능 | |||
80℃에서 NOx 저장 용량 (g NO2/L) |
200℃이하에서 총 NOx 저장 용량 (g NO2/L) |
80℃에서 HC 저장 용량 (g CH4/L) |
CO 전환을 위한 T90 (℃) |
0.33 | 0.39 | 0.19 | 202 |
Claims (15)
- (1) 비금속, 귀금속 및 제올라이트를 포함하는 제올라이트 촉매; 및 (2) 하나 이상의 백금족 금속과 하나 이상의 무기 산화물 담체를 포함하는 지지된 백금족 금속 촉매를 포함하는 냉 시동 촉매.
- 제 1 항에 있어서, 상기 비금속은 철, 구리, 망간, 크롬, 코발트, 니켈, 주석, 및 이들의 혼합물로 구성되는 군으로부터 선택된 것을 특징으로 하는 냉 시동 촉매.
- 제 1 항에 있어서, 상기 비금속은 철인 것을 특징으로 하는 냉 시동 촉매.
- 제 1 항에 있어서, 상기 귀금속은 백금, 팔라듐, 로듐, 및 이들의 혼합물로 구성되는 군으로부터 선택된 것을 특징으로 하는 냉 시동 촉매.
- 제 1 항에 있어서, 상기 귀금속은 팔라듐인 것을 특징으로 하는 냉 시동 촉매.
- 제 1 항에 있어서, 상기 제올라이트는 베타 제올라이트, 파우자사이트, L-제올라이트, ZSM 제올라이트, SSZ-제올라이트, 모데나이트, 카바자이트, 오프레타이트, 에리오나이트, 클리놉틸로라이트, 실리칼라이트, 알루미늄 포스페이트 제올라이트, 메조포러스 제올라이트, 금속-포함된 제올라이트, 및 이들의 혼합물로 구성되는 군으로부터 선택된 것을 특징으로 하는 냉 시동 촉매.
- 제 1 항에 있어서, 상기 제올라이트는 베타 제올라이트, ZSM-5, Fe-β 제올라이트, SSZ-33, Y-제올라이트, 및 이들의 혼합물로 구성되는 군으로부터 선택된 것을 특징으로 하는 냉 시동 촉매.
- 제 1 항에 있어서, 상기 하나 이상의 백금족 금속은 백금, 팔라듐, 로듐, 이리듐, 및 이들의 혼합물로 구성되는 군으로부터 선택된 것을 특징으로 하는 냉 시동 촉매.
- 제 1 항에 있어서, 상기 하나 이상의 무기 산화물 담체는 알루미나, 실리카, 티타니아, 지르코니아, 세리아, 니오비아, 탄탈륨 산화물, 몰리브덴 산화물, 텅스텐 산화물, 및 이들의 혼성 산화물 또는 복합 산화물로 구성되는 군으로부터 선택된 것을 특징으로 하는 냉 시동 촉매.
- 제 1 항의 냉 시동 촉매와 플로 스로 또는 필터 기판을 포함하는 배기 시스템.
- 제 10 항에 있어서, 상기 플로-스루 기판은 허니콤 모노리스인 것을 특징으로 하는 배기 시스템.
- 제 10 항에 있어서, 제올라이트 촉매와 지지된 백금족 금속 촉매는 상기 플로-스루 또는 필터 기판 위에 코팅된 것을 특징으로 하는 배기 시스템.
- 제 10 항에 있어서, 상기 플로-스루 또는 필터 기판은 제올라이트 촉매로 이루어지고, 상기 지지된 백금족 금속 촉매는 제올라이트 촉매 플로-스루 또는 필터 기판 위에 코팅된 것을 특징으로 하는 배기 시스템.
- 제 1 항의 냉 시동 촉매를 포함하는 내연 엔진을 위한 배기 시스템.
- 제 14 항에 있어서, 선택적 촉매 환원 촉매 시스템; 미립자 필터; 선택적 촉매 환원 필터 시스템; NOx 흡착제 촉매; 쓰리-웨이 촉매 시스템; 또는 이들의 조합을 더 포함하는 것을 특징으로 하는 배기 시스템.
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US13/150,659 US20120308439A1 (en) | 2011-06-01 | 2011-06-01 | Cold start catalyst and its use in exhaust systems |
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PCT/US2012/040137 WO2012166868A1 (en) | 2011-06-01 | 2012-05-31 | Cold start catalyst and its use in exhaust systems |
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Also Published As
Publication number | Publication date |
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JP6356062B2 (ja) | 2018-07-11 |
US20120308439A1 (en) | 2012-12-06 |
KR20190090029A (ko) | 2019-07-31 |
JP2014519975A (ja) | 2014-08-21 |
KR102111999B1 (ko) | 2020-05-18 |
CN103619469A (zh) | 2014-03-05 |
BR112013030901A2 (pt) | 2017-03-01 |
WO2012166868A1 (en) | 2012-12-06 |
CN108246353A (zh) | 2018-07-06 |
EP2714267A1 (en) | 2014-04-09 |
EP2714267B1 (en) | 2024-04-24 |
RU2013158340A (ru) | 2015-07-20 |
US20170128922A1 (en) | 2017-05-11 |
RU2612136C2 (ru) | 2017-03-02 |
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