KR101456514B1 - 디젤 엔진으로부터 미립자의 배출을 감소시키는 방법 및 장치 - Google Patents
디젤 엔진으로부터 미립자의 배출을 감소시키는 방법 및 장치 Download PDFInfo
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- KR101456514B1 KR101456514B1 KR1020087030727A KR20087030727A KR101456514B1 KR 101456514 B1 KR101456514 B1 KR 101456514B1 KR 1020087030727 A KR1020087030727 A KR 1020087030727A KR 20087030727 A KR20087030727 A KR 20087030727A KR 101456514 B1 KR101456514 B1 KR 101456514B1
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Images
Classifications
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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- F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- General Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Organic Chemistry (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas After Treatment (AREA)
- Catalysts (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
Claims (20)
- 디젤 엔진을, 연료 가용성 또는 분산성 세륨 조성물 및 연료 가용성 또는 분산성 백금족 금속 조성물을 포함하는 연료 내장형 촉매(fuel borne catalyst)를 함유한 연료로 작동시키고; 연료의 연소에 의해 생성되고 연소에 의해 연료로부터 방출된 세륨 옥사이드 및 백금족 금속 둘 모두를 함유한 배기가스를, (a) 촉매 섹션내의 접촉 표면 상에 백금족 금속 촉매, 베이스 금속(base metal) 촉매, 또는 이들의 조합물을 갖는 촉매 섹션, 및 (b) 엔진 중의 연료를 연소시키고 이들의 산화를 허용하기 위해 보유함으로써 발생된 연소 가스의 이동 스트림으로부터 미립자를 제거하는데 효과적인 통로로 이루어진 필터 섹션으로 이루어진 두 개 이상의 스테이지를 갖는 디젤 미립자 필터를 통과시킴을 포함하여, 디젤 엔진으로부터 미립자의 배출을 감소시키는 방법으로서,백금족 금속 조성물, 세륨 조성물, 연료, 화학적 인헨서(enhancer), 또는 이들의 조합물을 이용하여 필터 섹션에서 세륨 니트레이트를 형성시키기에 충분한 양으로 촉매 섹션에 NO2를 발생시키며, 이에 의해 세륨 옥사이드가 필터 섹션에서 백금의 분산물과 결합하고 이를 유지하며, 세륨 니트레이트는 그을음 입자 내 및 표면에서 이용가능하게 되어 다중 스테이지 필터에서 백금족 금속 및 세륨 연료 첨가제의 공급없이 달성되는 것보다 낮은 균형점에서 강화된 그을음 산화를 제공하는 것을 포함하는 방법.
- 제 1항에 있어서, 화학적 인헨서가 연료 중에서 가용성 또는 분산성의 알칼리 금속 또는 알칼리토 금속 조성물인 방법.
- 제 1항에 있어서, 화학적 인헨서가 디바이스 촉매 섹션 (a), 필터 섹션 (b), 또는 이들의 조합에서 고체상 알칼리 금속 또는 알칼리토 금속 조성물인 방법.
- 제 3항에 있어서, 화학적 인헨서가 세륨의 중량의 0.1 내지 1.0 중량%의 양으로 사용되는 방법.
- 제 1항에 있어서, 미세 및 초미세 미립자를 제거하기에 효과적인 제 3 스테이지 필터가 사용되는 방법.
- 제 1항에 있어서, 선택적 촉매 환원 (SCR) 유닛이 디젤 미립자 필터의 다운스트림에 제공되는 방법.
- 제 6항에 있어서, 잔류 NOx의 환원시에 SCR 유닛의 효율에 도움이 되게 하기 위해 NO를 NO2로 산화시키기 위한 촉매가 디젤 미립자 필터의 다운스트림에 제공되는 방법.
- 제 1항에 있어서, (a)의 촉매 섹션이 알루미나, 실리카-알루미나 조성물, 및 금속 기재로 이루어진 군으로부터 선택된 기재를 포함하는 방법.
- 제 1항에 있어서, (b)의 필터 섹션이 미립자 트랩 및 와이어 매시 필터에 대해 유용한 것으로 알려진 디바이스의 타입의 벽유동형 모놀리스(wall flow monolith) 디바이스로 이루어진 군으로부터 선택된 디바이스를 포함하는 방법.
- 제 1항에 있어서, 촉매 섹션이 필터 섹션과 통합된 방법.
- 제 1항에 있어서, 연료가 디바이스의 촉매 섹션 및 필터 섹션내의 온도를 상승시키기 위해 촉매 (a)의 엔진 배기가스의 업스트림에 주입되는 방법.
- 제 1항에 있어서, 연료 내장형 촉매를 함유한 연료가 디바이스의 촉매 섹션 및 필터 섹션의 엔진 배기가스의 업스트림에 주입되는 방법.
- 제 2항에 있어서, 연료 내장형 촉매 및 인헨서를 함유한 연료가 디바이스의 촉매 섹션 및 필터 섹션의 엔진 배기가스의 업스트림에 주입되는 방법.
- 제 11항 내지 제 13항 중 어느 한 항에 있어서, 연료 내장형 촉매 또는 인헨서를 함유하거나 함유하지 않은 연료의 주입이 촉매 필터 디바이스의 업스트림, 디바이스내, 및 디바이스의 다운스트림으로 이루어진 군으로부터 선택되는 하나 이상의 위치에서의 온도 또는 역압 센서 신호를 기초로 하여 조절되는 방법.
- 제 1항에 있어서, 세륨 니트레이트 형성을 위한 인헨서가 제조시에 촉매 섹션의 일부로서 사용되는 방법.
- 연료 가용성 또는 분산성 세륨 조성물 및 연료 가용성 또는 분산성 백금족 금속 조성물을 함유하는 연료 내장형 촉매를 포함하는 연료를 디젤 엔진에 공급하기 위한 수단; 및 연료의 연소에 의해 형성되고 연소에 의해 연료로부터 방출된 세륨 옥사이드과 백금족 금속 둘 모두를 함유한 배기가스를, (a) 촉매 섹션내의 접촉 표면 상에 백금족 금속 촉매, 베이스 금속 촉매, 또는 이들의 조합물을 갖는 촉매 섹션, 및 (b) 엔진 중의 연료를 연소시키고 이들의 산화를 허용하기 위하여 보유함으로써 발생된 연소 가스의 이동 스트림으로부터 미립자를 제거하는데 효과적인 통로로 이루어진 필터 섹션으로 이루어진 두 개 이상의 스테이지를 갖는 디젤 미립자 필터를 통과시키기 위한 수단을 포함하는 디젤 엔진으로부터 미립자의 배출을 감소시키기 위한 장치로서,백금족 금속 조성물, 세륨 조성물, 연료, 화학적 인헨서, 또는 이들의 조합물을 이용하여 필터 섹션에서 세륨 니트레이트를 형성시키기에 충분한 양으로 촉매 섹션에서 NO2를 발생시키며, 이에 의해 세륨 옥사이드가 필터 섹션에서 백금의 분산물과 결합하고 이를 유지하며, 세륨 니트레이트는 그을음 입자내 및 표면에서 이용가능하게 되어 다중 스테이지 필터에서 백금족 금속 및 세륨 연료 첨가제의 공급없이 달성되는 것보다 낮은 균형점에서 강화된 그을음 산화를 제공하는 장치.
- 제 16항에 있어서, 촉매 필터 디바이스의 업스트림, 디바이스내, 및 디바이스의 다운스트림으로 이루어진 군으로부터 선택되는 하나 이상의 위치에서의 온도 또는 역압 센서 신호를 기초로 하여 연료 내장형 촉매의 도입을 조절하기 위한 수단을 추가로 포함하는 장치.
- 제 16항에 있어서, 다중 스테이지 필터 이후에 선택적 촉매 환원 (SCR) 유닛을 추가로 포함하며, 환원된 미립자 및 발생된 NO2가 잔류 NOx의 환원시에 SCR 유닛의 효율에 도움을 주는 장치.
- 제 17항에 있어서, NO를 NO2로 전환시키기 위한, SCR의 전방에 추가적인 촉매를 추가로 포함하는 장치.
- 제 17항에 있어서, 초미세 입자를 제거할 수 있는 필터 섹션을 추가로 포함하는 장치.
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US74758006P | 2006-05-18 | 2006-05-18 | |
US60/747,580 | 2006-05-18 | ||
PCT/US2007/011911 WO2007136753A2 (en) | 2006-05-18 | 2007-05-18 | Improvements in diesel particulate control |
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EP (1) | EP2032810B1 (ko) |
JP (1) | JP5165677B2 (ko) |
KR (1) | KR101456514B1 (ko) |
CN (1) | CN101490374B (ko) |
AT (1) | ATE549492T1 (ko) |
AU (1) | AU2007254142A1 (ko) |
BR (1) | BRPI0712665A2 (ko) |
CA (1) | CA2652241A1 (ko) |
MX (1) | MX2008014631A (ko) |
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- 2007-05-18 KR KR1020087030727A patent/KR101456514B1/ko not_active Expired - Fee Related
- 2007-05-18 JP JP2009511085A patent/JP5165677B2/ja not_active Expired - Fee Related
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- 2007-05-18 CN CN2007800272184A patent/CN101490374B/zh not_active Expired - Fee Related
- 2007-05-18 US US11/750,601 patent/US7964154B2/en not_active Expired - Fee Related
- 2007-05-18 AT AT07795033T patent/ATE549492T1/de active
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WO2007136753A2 (en) | 2007-11-29 |
EP2032810A2 (en) | 2009-03-11 |
KR20090030267A (ko) | 2009-03-24 |
BRPI0712665A2 (pt) | 2012-09-04 |
AU2007254142A1 (en) | 2007-11-29 |
US20070283681A1 (en) | 2007-12-13 |
US8715601B2 (en) | 2014-05-06 |
US20110239626A1 (en) | 2011-10-06 |
ATE549492T1 (de) | 2012-03-15 |
NO20085261L (no) | 2009-01-26 |
CN101490374A (zh) | 2009-07-22 |
JP2009537734A (ja) | 2009-10-29 |
JP5165677B2 (ja) | 2013-03-21 |
CA2652241A1 (en) | 2007-11-29 |
WO2007136753A3 (en) | 2008-07-10 |
CN101490374B (zh) | 2013-02-06 |
EP2032810A4 (en) | 2010-12-08 |
MX2008014631A (es) | 2008-11-28 |
EP2032810B1 (en) | 2012-03-14 |
US7964154B2 (en) | 2011-06-21 |
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