KR20140105568A - 자동차 촉매 후처리 시스템 - Google Patents
자동차 촉매 후처리 시스템 Download PDFInfo
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- KR20140105568A KR20140105568A KR1020147019469A KR20147019469A KR20140105568A KR 20140105568 A KR20140105568 A KR 20140105568A KR 1020147019469 A KR1020147019469 A KR 1020147019469A KR 20147019469 A KR20147019469 A KR 20147019469A KR 20140105568 A KR20140105568 A KR 20140105568A
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Abstract
Description
도 1은 배기 가스가 통과할 때 종래 디젤 산화 촉매(DOC 1)의 내부의 세 영역에서 온도를 도시한 그래프이다. DOC 1은 균일한 PGM 로딩을 가진다.
도 2는 배기 가스가 통과할 때 PGM 농도가 더 높은 10mm "스트라이프"를 갖는 디젤 산화 촉매(DOC 2)의 내부의 세 영역에서 온도를 도시한 그래프이다.
도 3은 배기 가스가 통과할 때 본 발명에 따른 디젤 산화 촉매(DOC 3)의 내부의 세 영역의 온도를 도시한 그래프이다.
Claims (17)
- 디젤 산화 촉매(DOC) 및 디젤 산화 촉매(DOC)의 하류에 위치된 후처리 장치를 포함하며, 상기 후처리 장치는 주기적 열 처리, 및 후처리 장치 내에서 온도 증가를 생성하기 위한 수단을 필요로 하고, 상기 디젤 산화 촉매(DOC)는 디젤 산화 촉매(DOC)의 나머지 부분보다 탄화수소(HC)에 대한 산화 활성이 더 높은 0.5 내지 2인치(12.7-50.81mm) 길이의 상류 구역을 포함하는, 디젤 엔진 배기 가스를 위한 촉매 후처리 시스템.
- 제 1 항에 있어서, 상류 구역은 0.5 내지 1.5인치의 길이인 것을 특징으로 하는 촉매 후처리 시스템.
- 제 2 항에 있어서, 상류 구역은 약 1인치의 길이인 것을 특징으로 하는 촉매 후처리 시스템.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 디젤 산화 촉매(DOC)는 4 내지 15인치의 직경 및 2.5 내지 10인치의 길이를 갖는 것을 특징으로 하는 촉매 후처리 시스템.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서, 디젤 산화 촉매는 Pt와 Pd의 혼합물, 또는 Pt와 Pd의 합금을 포함하는 것을 특징으로 하는 촉매 후처리 시스템.
- 제 5 항에 있어서, 디젤 산화 촉매(DOC)의 상류 구역과 나머지 부분 모두에서 Pt 대 Pd의 중량비는 1:3 내지 5:1인 것을 특징으로 하는 촉매 후처리 시스템.
- 제 1 항 내지 제 6 항 중 어느 한 항에 있어서, 상류 구역의 PGM 농도는 10 내지 150g ft-3인 것을 특징으로 하는 촉매 후처리 시스템.
- 제 1 항 내지 제 7 항 중 어느 한 항에 있어서, 후처리 장치는 그을음 필터인 것을 특징으로 하는 촉매 후처리 시스템.
- 제 1 항 내지 제 8 항 중 어느 한 항에 있어서, 후처리 장치는 선택적 촉매 환원(SCR)을 위한 촉매 유닛인 것을 특징으로 하는 촉매 후처리 시스템.
- 제 1 항 내지 제 9 항 중 어느 한 항에 있어서, 헤비-듀티 디젤 엔진을 더 포함하는 것을 특징으로 하는 촉매 후처리 시스템.
- 디젤 엔진 및 제 1 항 내지 제 10 항 중 어느 한 항에 따른 촉매 후처리 시스템을 포함하는 차량.
- 디젤 산화 촉매(DOC)의 나머지 부분보다 탄화수소(HC)에 대한 산화 활성이 더 높은 0.5 내지 2인치(12.7 내지 50.81mm) 길이의 상류 구역을 포함하는 디젤 산화 촉매(DOC) 위로 배기 가스를 지나가게 함으로써, 200 내지 375℃의 배기 가스 온도에서, 디젤 엔진 배기 가스 후처리 시스템에서 디젤 산화 촉매(DOC)의 하류에 위치된 후처리 장치의 능동적 열 처리 동안 디젤 산화 촉매(DOC) 활성을 유지하는 방법.
- 디젤 산화 촉매(DOC)의 나머지 부분보다 탄화수소(HC)에 대한 산화 활성이 더 높은 0.5 내지 2인치(12.7 내지 50.81mm) 길이의 상류 구역을 포함하는 디젤 산화 촉매(DOC) 위로 탄화수소(HC)로 부화된 배기 가스를 지나가게 함으로써, 200 내지 375℃의 배기 가스 온도에서, 디젤 산화 촉매(DOC)의 하류에 위치된 후처리 장치의 능동적 열 처리 사건 동안 디젤 산화 촉매(DOC)의 소화를 피하는 방법.
- 제 12 항 또는 제 13 항에 있어서, 상류 구역은 촉매로 이미 균일하게 코팅된 브릭의 구간에 제2 촉매 코팅을 적용하는 추가의 정밀코팅 단계에 의해서 제조되는 것을 특징으로 하는 방법.
- 제 12 항 또는 제 13 항에 있어서, 상류 구역은 촉매로 이미 균일하게 코팅된 브릭의 구간의 함침에 의해서 제조되는 것을 특징으로 하는 방법.
- 제 12 항 또는 제 13 항에 있어서, 상류 구역은 촉매로 이미 균일하게 코팅된 브릭의 구간의 촉매 워시코팅에 의해서 제조되는 것을 특징으로 하는 방법.
- 제 12 항 또는 제 13 항에 있어서, 상류 구역은 촉매로 이미 균일하게 코팅된 브릭의 구간 상에 하나 이상의 촉매 금속의 화학 증착에 의해서 제조되는 것을 특징으로 하는 방법.
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| GB1121468.1 | 2011-12-14 | ||
| GBGB1121468.1A GB201121468D0 (en) | 2011-12-14 | 2011-12-14 | Improvements in automotive catalytic aftertreatment |
| PCT/GB2012/053119 WO2013088152A1 (en) | 2011-12-14 | 2012-12-13 | Automotive catalytic aftertreatment system |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| KR1020197027690A Division KR20190112178A (ko) | 2011-12-14 | 2012-12-13 | 자동차 촉매 후처리 시스템 |
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| Publication Number | Publication Date |
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| KR20140105568A true KR20140105568A (ko) | 2014-09-01 |
| KR102025922B1 KR102025922B1 (ko) | 2019-11-11 |
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| EP (1) | EP2790814B1 (ko) |
| JP (4) | JP2015508468A (ko) |
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| CN (1) | CN103998113B (ko) |
| BR (1) | BR112014013254B1 (ko) |
| DE (1) | DE102012223021B4 (ko) |
| GB (2) | GB201121468D0 (ko) |
| RU (1) | RU2617770C2 (ko) |
| WO (1) | WO2013088152A1 (ko) |
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| EP3689456B1 (en) * | 2013-07-30 | 2024-05-22 | Johnson Matthey Public Limited Company | Ammonia slip catalyst |
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| US9662636B2 (en) | 2014-04-17 | 2017-05-30 | Basf Corporation | Zoned catalyst composites |
| EP3487617B1 (de) * | 2016-07-19 | 2021-09-08 | Umicore AG & Co. KG | Dieseloxidationskatalysator |
| JP6865664B2 (ja) | 2017-09-25 | 2021-04-28 | 株式会社キャタラー | 排ガス浄化用酸化触媒装置 |
| US11873994B2 (en) * | 2018-11-13 | 2024-01-16 | Johnson Matthey Public Limited Company | Electrically heated catalytic combustor |
| GB201914958D0 (en) | 2019-06-26 | 2019-11-27 | Johnson Matthey Plc | Composite, zoned oxidation catalyst for a compression ignition internal combustion engine |
| JP7139536B2 (ja) | 2019-06-26 | 2022-09-20 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニー | 圧縮点火内燃機関用の複合ゾーン化酸化触媒 |
| US12343714B2 (en) | 2019-10-16 | 2025-07-01 | Johnson Matthey Public Limited Company | Composite, zoned oxidation catalyst for a compression ignition internal combustion engine |
| EP3888774A1 (en) | 2020-03-31 | 2021-10-06 | Johnson Matthey Public Limited Company | Composite, zone-coated oxidation and exotherm generation catalyst |
| JP7367203B2 (ja) | 2019-10-16 | 2023-10-23 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニー | 複合のゾーンコーティングされたデュアルユースアンモニア(amox)及び一酸化窒素酸化触媒 |
| GB202004769D0 (en) | 2019-10-16 | 2020-05-13 | Johnson Matthey Plc | Composite, zoned oxidation catalyst for a compression ignition internal combustion engine |
| US20230219039A1 (en) * | 2020-06-12 | 2023-07-13 | Basf Corporation | Exhaust gas treatment system comprising a multifunctional catalyst |
| EP4558259B1 (en) | 2023-07-21 | 2025-09-10 | Johnson Matthey Public Limited Company | Oxidation catalyst article with phosphorous resistance |
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Also Published As
| Publication number | Publication date |
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| JP2020097939A (ja) | 2020-06-25 |
| BR112014013254A8 (pt) | 2017-06-13 |
| KR20190112178A (ko) | 2019-10-02 |
| US20130152548A1 (en) | 2013-06-20 |
| CN103998113A (zh) | 2014-08-20 |
| GB201121468D0 (en) | 2012-01-25 |
| JP2018087572A (ja) | 2018-06-07 |
| GB2497669B (en) | 2015-11-18 |
| GB2497669A (en) | 2013-06-19 |
| JP2022176975A (ja) | 2022-11-30 |
| BR112014013254A2 (pt) | 2017-06-13 |
| BR112014013254B1 (pt) | 2021-02-23 |
| DE102012223021A1 (de) | 2013-06-20 |
| RU2014128529A (ru) | 2016-02-10 |
| US9341098B2 (en) | 2016-05-17 |
| GB201222460D0 (en) | 2013-01-30 |
| WO2013088152A1 (en) | 2013-06-20 |
| RU2617770C2 (ru) | 2017-04-26 |
| JP6974145B2 (ja) | 2021-12-01 |
| CN103998113B (zh) | 2017-05-03 |
| JP2015508468A (ja) | 2015-03-19 |
| EP2790814B1 (en) | 2020-10-14 |
| DE102012223021B4 (de) | 2019-05-02 |
| KR102025922B1 (ko) | 2019-11-11 |
| EP2790814A1 (en) | 2014-10-22 |
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