KR102292153B1 - 3원 촉매 변환기 - Google Patents
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- F01N2510/00—Surface coverings
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Abstract
Description
도 2: 개략도는 3원 촉매 변환기에 대한 연구(investigation)에 대한 기본적인 실험 설정을 도시한다. 매회, 2인치 폭 및 4인치 직경을 갖는 3개의 지지체 조각이 배기관에 줄지어 위치된다. 도 2a: 통상적인 3원 촉매 변환기; 도 2b: 선행 기술(예를 들어 WO9617671A1); 도 2c: 본원 발명에 따른 실험적 배치.
도 3: 도 3의 다이아그램은 도 2의 2a 내지 2c에 도시한 실험적 배치의 탄화수소(THC) 배출을 도시한다. 본원 발명에 따른 시스템 2c(CAT-1b/CAT-1b/CAT-2) 및 시스템 2b는 모든 OSC 시스템 2a에 비해 양호하다는 것이 주목할 만하다.
도 4: 도 4의 다이아그램은 도 2의 2a 내지 2c에 도시한 실험적 배치의 NMHC 배출을 도시한다. THC에 대한 데이터(도 3)와 마찬가지로, 본원 발명에 따른 시스템 2c(CAT-1b/CAT-1b/CAT-2) 및 시스템 2b는 모든 OSC 시스템 2a에 비해 유리함을 도시한다.
도 5: 본 도는 CO 배출에 대한 시스템(도 2)의 연구 결과를 도시한다. 본원 발명(CAT-1b/CAT-1b/CAT-2)에 따른 시스템은 월등히 우수한 결과를 갖는다.
도 6: 본 도는 NOx 배출에 대한 도 2에 도시된 시스템의 연구 결과를 도시한다. 이 경우, 특히, 본원 발명에 따른 레이아웃 2c가 다른 시스템 2a 및 2b에 비해 놀랍도록 양호한 결과를 나타낸다.
실시예:
1) 세라믹 기재들을 최근의 종래 기술에 따른 도 2에 도시된 촉매 변환기의 상이한 워시코트들로 코팅했다. 이후, 차량의 160,000km의 주행거리를 모의실험하기 위하여 촉매 변환기를 엔진 시험 벤치(engine test bench)에 대한 ZDAKW 에이징 프로세스로 에이징시켰다. 상기 에이징은 오버런 연료 차단(overrun fuel cutoff)의 정규적인 단계들에 의해 특징지어지며, 이후 배기 가스의 일시적 희박 조성에 의해, 1000℃를 초과하는 베드 온도(bed temperature)를 초래한다. 이러한 조건은 산소 저장 물질 및 귀금속의 비가역적 손상을 초래한다. 이러한 촉매 변환기는, 엔진에 인접한 위치에서 동적 FTP-75 운전 사이클로 최신의 2.0l 4 실린더 적용에서, 고도의 동적 엔진 시험 벤치에 대해 후속적으로 시험되었다. 상기 FTP-75의 개별 단계들에서의 배기 가스는 3개의 상이한 백(bag)들의 CVS 시스템에 수집되었다. 시험 완료 후, 상기 백들은 최근 US 법률에 따라 분석하고 칭량했다. 그 결과는 도 3 내지 6에 도시된다. 시스템 2c는 일산화탄소 및 산화질소 배출 구역에서 명확한 이점을 보인다.
Claims (7)
- 촉매 활성 코팅을 갖는 인접한 지지체들을 갖는, 가솔린 동력 내부 연소 엔진에서의 유해한 배기 성분의 감소를 위한 3원 촉매 변환기로서,
상기 촉매 활성 코팅은 유동 방향에서 산소 저장능의 불균일한 분포를 가지며, 상기 촉매 변환기의 하류측 상에 산소 저장 물질이 존재하지 않고, 이 하류측 구역이 전체 3원 촉매 변환기에 대한 상대 용적 5 내지 50%를 구성하고, 상기 3원 촉매 변환기는 서로 연결된 2개 이상의 지지체들로 구성되고, 산소 저장능을 갖지 않는 하류 말단 지지체는 산화 바륨으로 안정화되는 넓은 표면적의 산화 알루미늄 상의 팔라듐 및 로듐의 침착물을 포함하는 촉매 활성 코팅을 갖고, 상류 말단의 지지체는 2층 구조를 나타내며, 여기서 하부층은 촉매 활성 금속으로서 팔라듐만을 포함하고, 상부층은 팔라듐 및 로듐을 함유하는 것을 특징으로 하는, 촉매 변환기. - 제1항에 있어서, 상기 지지체들 상의 상기 촉매 활성 코팅이, 상기 지지체들 상에 1개 이상의 층으로 구획화(zone)되거나, 도포되거나, 구획화되고 도포되는 것을 특징으로 하는, 촉매 변환기.
- 제1항 또는 제2항에 있어서, 사용되는 산소 저장능을 갖는 물질이 세륨 산화물들, 세륨-지르코늄 산화물들 또는 도핑된 세륨-지르코늄 산화물들 및 이들의 조합으로 이루어진 그룹으로부터 선택되는 것을 특징으로 하는, 촉매 변환기.
- 제1항 또는 제2항에 있어서, 상기 촉매 변환기 내부의 상기 산소 저장능이 하류 말단으로부터 상류 말단까지 단계적으로 또는 연속적으로 상승하는 것을 특징으로 하는, 촉매 변환기.
- 배기 가스를 제1항 또는 제2항에 따른 3원 촉매 변환기를 통해 운반하여 가솔린 차량 내부 연소 엔진의 유해한 배기 성분을 감소시키는 방법.
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Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE102013210270.4A DE102013210270A1 (de) | 2013-06-03 | 2013-06-03 | Dreiwegkatalysator |
DE102013210270.4 | 2013-06-03 | ||
PCT/EP2014/061024 WO2014195196A1 (de) | 2013-06-03 | 2014-05-28 | Dreiwegkatalysator |
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KR20160016968A KR20160016968A (ko) | 2016-02-15 |
KR102292153B1 true KR102292153B1 (ko) | 2021-08-24 |
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KR1020157037237A Active KR102292153B1 (ko) | 2013-06-03 | 2014-05-28 | 3원 촉매 변환기 |
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US (1) | US10071342B2 (ko) |
EP (1) | EP3003537B1 (ko) |
JP (1) | JP6431051B2 (ko) |
KR (1) | KR102292153B1 (ko) |
CN (1) | CN105339074B (ko) |
BR (1) | BR112015030035A2 (ko) |
DE (1) | DE102013210270A1 (ko) |
RU (1) | RU2679246C2 (ko) |
WO (1) | WO2014195196A1 (ko) |
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DE102015201902B4 (de) * | 2015-02-04 | 2022-11-17 | Ford Global Technologies, Llc | Abgasnachbehandlungsanordnung |
JP6130424B2 (ja) * | 2015-03-27 | 2017-05-17 | トヨタ自動車株式会社 | 排ガス浄化用触媒 |
JP6219871B2 (ja) | 2015-03-27 | 2017-10-25 | トヨタ自動車株式会社 | 排ガス浄化用触媒 |
DE102015212788A1 (de) * | 2015-07-08 | 2017-01-12 | Volkswagen Aktiengesellschaft | Katalytisch aktives Partikelfilter |
EP3466541B1 (en) * | 2016-05-24 | 2020-09-16 | Cataler Corporation | Exhaust gas purifying catalyst |
EP3505246B1 (de) * | 2017-12-19 | 2019-10-23 | Umicore Ag & Co. Kg | Katalytisch aktives partikelfilter |
EP3501648B1 (de) | 2017-12-19 | 2023-10-04 | Umicore Ag & Co. Kg | Katalytisch aktives partikelfilter |
EP3501646A1 (de) | 2017-12-19 | 2019-06-26 | Umicore Ag & Co. Kg | Katalytisch aktives partikelfilter |
US20190353067A1 (en) | 2018-05-18 | 2019-11-21 | Umicore Ag & Co. Kg | Exhaust treatment systems and methods involving oxygen supplementation and hydrocarbon trapping |
EP3639907B1 (en) | 2018-10-18 | 2025-03-26 | Umicore AG & Co. KG | Exhaust gas purification system for a gasoline engine |
EP3639921B1 (en) * | 2018-10-18 | 2025-07-09 | Umicore AG & Co. KG | Exhaust gas purification system for a gasoline engine |
EP3639922B1 (en) | 2018-10-18 | 2020-09-16 | Umicore Ag & Co. Kg | Exhaust gas purification system for a gasoline engine |
EP3639909A1 (en) | 2018-10-18 | 2020-04-22 | Umicore Ag & Co. Kg | Exhaust gas purification system for a gasoline engine |
EP3639908B1 (en) * | 2018-10-18 | 2024-04-17 | Umicore Ag & Co. Kg | Exhaust gas purification system for a gasoline engine |
EP3639920B1 (en) | 2018-10-18 | 2020-09-16 | Umicore Ag & Co. Kg | Exhaust gas purification system for a gasoline engine |
EP3639919B1 (en) | 2018-10-18 | 2025-07-09 | Umicore AG & Co. KG | Exhaust gas purification system for a gasoline engine |
EP4029592A1 (de) | 2019-03-29 | 2022-07-20 | UMICORE AG & Co. KG | Katalytisch aktives partikelfilter |
US11187127B2 (en) | 2019-06-28 | 2021-11-30 | Deere & Company | Exhaust gas treatment system and method with four-way catalyzed filter element |
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DE102023101768A1 (de) | 2022-04-11 | 2023-10-12 | Umicore Ag & Co. Kg | Abgassystem für überwiegend stöchiometrisch betriebene Verbrennungsmotoren aufweisend einen Katalysator zur Verminderung der Ammoniakemissionen |
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Also Published As
Publication number | Publication date |
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WO2014195196A1 (de) | 2014-12-11 |
BR112015030035A2 (pt) | 2017-07-25 |
KR20160016968A (ko) | 2016-02-15 |
RU2679246C2 (ru) | 2019-02-06 |
DE102013210270A1 (de) | 2014-12-04 |
RU2015157051A (ru) | 2019-01-17 |
CN105339074A (zh) | 2016-02-17 |
RU2015157051A3 (ko) | 2019-01-17 |
JP2016525936A (ja) | 2016-09-01 |
US10071342B2 (en) | 2018-09-11 |
CN105339074B (zh) | 2018-10-09 |
EP3003537A1 (de) | 2016-04-13 |
JP6431051B2 (ja) | 2018-11-28 |
US20160121267A1 (en) | 2016-05-05 |
EP3003537B1 (de) | 2021-01-27 |
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