KR100917495B1 - 팔라듐-금을 포함하는 엔진 배기가스 촉매 - Google Patents
팔라듐-금을 포함하는 엔진 배기가스 촉매 Download PDFInfo
- Publication number
- KR100917495B1 KR100917495B1 KR1020070050567A KR20070050567A KR100917495B1 KR 100917495 B1 KR100917495 B1 KR 100917495B1 KR 1020070050567 A KR1020070050567 A KR 1020070050567A KR 20070050567 A KR20070050567 A KR 20070050567A KR 100917495 B1 KR100917495 B1 KR 100917495B1
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- South Korea
- Prior art keywords
- catalyst
- coated
- supported
- engine exhaust
- platinum
- Prior art date
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 110
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- 238000007254 oxidation reaction Methods 0.000 claims abstract description 27
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- 238000000034 method Methods 0.000 claims description 59
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- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 7
- -1 bismuth activated platinum Chemical class 0.000 abstract description 2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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Abstract
Description
실시예 | La-도핑된 알루미나에 담지된 촉매 1 | La-도핑된 알루미나에 담지된 촉매 2 | CO 배출 (g/km) |
1 | 120 g/ft3에서 PtPd (2:1 중량비) | 없음 | 0.222 |
2 | 60 g/ft3에서 Pt | 73 g/ft3에서 PdAu (0.85:1.0 중량비) | 0.181 |
3 | 85 g/ft3에서 PtPd (2:1 중량비) | 73 g/ft3에서 PdAu (0.85:1.0 중량비) | 0.104 |
4 | 60 g/ft3에서 PtBi (1.5:1 중량비) | 73 g/ft3에서 PdAu (0.85:1.0 중량비) | 0.087 |
실시예 | 브릭 1 (5.66”X 1.25”) | 브릭 2 (5.66”X 1.25”) | CO 배출 (g/km) |
5 | 170 g/ft3 에서 PtPd (2:1 중량비) | 블랭크 | 0.171 |
6 | 170 g/ft3에서 PtPd (2:1 중량비) | 146 g/ft3에서 PdAu (0.85:1.0 중량비) | 0.065 |
7 | 120 g/ft3 에서 PtBi (1.5:1 중량비) | 146 g/ft3에서 PdAu (0.85:1.0 중량비) | 0.078 |
실시예 | 외층 | 버퍼층 | 내층 | CO 배출(g/km) |
8 | 85 g/ft3에서 PtPd (2:1 중량비) | 30 g/ft3에서 희토류 산화물에 담지된 Pd | 73 g/ft3에서 PdAu (0.85:1.0 중량비) | 0.137 |
Claims (27)
- 백금-베이스 촉매를 포함하는 제 1 담지촉매 및 팔라듐과 금을 갖는 제 2 담지촉매를 갖는 기재(substrate)를 포함하는 엔진 배기가스 촉매로서, 상기 기재는 하나의 단일체를 포함하며, 상기 단일체는 제 1 영역과 제 2 영역을 포함하고, 제 1 담지촉매는 제 1 영역 위에 코팅되고 제 2 담지촉매는 제 2 영역 위에 코팅되는 엔진 배기가스 촉매.
- 제 1항에 있어서,제 1 영역은 제 2 영역 앞에서 엔진 배기가스 흐름과 만나도록 위치하는 엔진 배기가스 촉매.
- 제 2항에 있어서,제 1 담지촉매는 NO 및/또는 HC의 산화를 촉진하는 엔진 배기가스 촉매.
- 삭제
- 제 1항에 있어서,백금-베이스 촉매는 백금 및 팔라듐을 포함하는 엔진 배기가스 촉매.
- 제 1항에 있어서,백금-베이스 촉매는 백금 및 비스무트를 포함하는 엔진 배기가스 촉매.
- 백금-베이스 촉매를 포함하는 제 1 담지촉매 및 팔라듐과 금을 갖는 제 2 담지촉매를 갖는 기재를 포함하는 엔진 배기가스 촉매로서, 기재는 제 1 단일체와 제 2 단일체를 포함하고, 제 1 담지촉매는 제 1 단일체 위에 코팅되고 제 2 담지촉매는 제 2 단일체 위에 코팅되는 엔진 배기가스 촉매.
- 제 7항에 있어서, 제 1 단일체는 제 2 단일체 앞에서 배기가스 흐름과 만나도록 위치하는 엔진 배기가스 촉매.
- 제 8항에 있어서,제 1 담지촉매는 NO 및/또는 HC의 산화를 촉진하는 엔진 배기가스 촉매.
- 삭제
- 제 7항에 있어서,백금-베이스 촉매는 백금과 팔라듐을 포함하는 엔진 배기가스 촉매.
- 제 7항에 있어서, 백금-베이스 촉매는 백금과 비스무트를 포함하는 엔진 배기가스 촉매.
- 백금-베이스 촉매를 포함하는 제 1 담지촉매 및 팔라듐과 금을 갖는 제 2 담지촉매를 갖는 기재를 포함하는 엔진 배기가스 촉매로서, 기재는 코팅된 다중 층을 갖고, 제 1 담지촉매는 기재에 외층으로 코팅되고 제 2 담지촉매는 내층으로 코팅되는 엔진 배기가스 촉매.
- 제 13항에 있어서, 다중 층은 외층과 내층 사이에 버퍼 층을 포함하는 엔진 배기가스 촉매.
- 제 14항에 있어서,기재는 다수의 채널을 갖고, 내층, 버퍼층 및 외층이 순차적으로 벌집 구조에 코팅되는 벌집 구조를 포함하는 엔진 배기가스 촉매.
- 제 15항에 있어서,제 1 담지촉매는 NO 및/또는 HC의 산화를 촉진하는 엔진 배기가스 촉매.
- 삭제
- 제 13항에 있어서, 백금-베이스 촉매는 백금 및 팔라듐을 포함하는 엔진 배기가스 촉매.
- 제 13항에 있어서,백금-베이스 촉매는 백금과 비스무트를 포함하는 엔진 배기가스 촉매.
- 하기의 단계를 포함하는 엔진 배기가스 촉매 제조방법:백금-베이스 촉매를 포함하는 제 1 담지촉매를 제조하는 단계;팔라듐과 금을 포함하는 제 2 담지촉매를 제조하는 단계; 및기재를 제 1 담지촉매와 제 2 담지촉매로 코팅하는 단계.
- 제 20항에 있어서,기재는 제 1 영역과 제 2 영역을 포함하고, 제 1 담지촉매는 제 1 영역 위에 코팅되고 제 2 담지촉매는 제 2 영역 위에 코팅되는 방법.
- 제 21항에 있어서,제 1 영역은 제 2 영역 앞에서 엔진 배기가스 흐름과 만나도록 위치하는 방법.
- 제 20항에 있어서,기재는 제 1 단일체와 제 2 단일체를 포함하고, 제 1 담지촉매는 제 1 단일체 위에 코팅되고 제 2 담지촉매는 제 2 단일체 위에 코팅되는 방법.
- 제 23항에 있어서,제 1 단일체는 제 2 단일체 앞에서 엔진 배기가스 흐름과 만나도록 위치하는 방법.
- 제 20항에 있어서,기재는 그 상부에 코팅된 다중 층을 포함하고, 제 1 담지촉매는 기재 위에 외층으로 코팅되며 제 2 담지촉매는 내층으로 코팅되는 방법.
- 제 25항에 있어서,다중 층은 외층과 내층 사이에 버퍼 층을 포함하는 방법.
- 제 26항에 있어서,기재는 다수의 채널을 갖고, 내층, 버퍼층 및 외층이 순차적으로 벌집 구조에 코팅되는 벌집 구조를 포함하는 방법.
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EP1938893A2 (en) | 2008-07-02 |
KR20080047950A (ko) | 2008-05-30 |
GB0710114D0 (en) | 2007-07-04 |
GB2444126B8 (en) | 2011-06-29 |
EP1938893A3 (en) | 2009-12-16 |
GB2444126B (en) | 2009-05-27 |
GB2444126A (en) | 2008-05-28 |
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GB2458589A (en) | 2009-09-30 |
GB2458589A8 (en) | 2010-03-31 |
GB2444125B (en) | 2010-07-21 |
US7517826B2 (en) | 2009-04-14 |
GB2444126C (en) | 2010-01-20 |
GB2444125A (en) | 2008-05-28 |
GB2444126A8 (en) | 2011-06-29 |
KR20080047951A (ko) | 2008-05-30 |
US20080125309A1 (en) | 2008-05-29 |
GB0910757D0 (en) | 2009-08-05 |
GB0710115D0 (en) | 2007-07-04 |
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