KR20170110168A - 강화된 no2 발생기용 구조적 디젤 산화 촉매 - Google Patents
강화된 no2 발생기용 구조적 디젤 산화 촉매 Download PDFInfo
- Publication number
- KR20170110168A KR20170110168A KR1020177026490A KR20177026490A KR20170110168A KR 20170110168 A KR20170110168 A KR 20170110168A KR 1020177026490 A KR1020177026490 A KR 1020177026490A KR 20177026490 A KR20177026490 A KR 20177026490A KR 20170110168 A KR20170110168 A KR 20170110168A
- Authority
- KR
- South Korea
- Prior art keywords
- catalyst
- oxidation catalyst
- oxidation
- platinum
- palladium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
- B01D53/9477—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on separate bricks, e.g. exhaust systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
- B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
- B01D53/9422—Processes characterised by a specific catalyst for removing nitrogen oxides by NOx storage or reduction by cyclic switching between lean and rich exhaust gases (LNT, NSC, NSR)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/44—Palladium
-
- B01J35/0006—
-
- B01J35/04—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/19—Catalysts containing parts with different compositions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional [3D] monoliths
- B01J35/57—Honeycombs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0234—Impregnation and coating simultaneously
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
- F01N13/0093—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series the purifying devices are of the same type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
- F01N13/0097—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2807—Metal other than sintered metal
- F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2825—Ceramics
- F01N3/2828—Ceramic multi-channel monoliths, e.g. honeycombs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1021—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1023—Palladium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/01—Engine exhaust gases
- B01D2258/012—Diesel engines and lean burn gasoline engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/12—Silica and alumina
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N2510/00—Surface coverings
- F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
- F01N2510/068—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings
- F01N2510/0682—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings having a discontinuous, uneven or partially overlapping coating of catalytic material, e.g. higher amount of material upstream than downstream or vice versa
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/103—Oxidation catalysts for HC and CO only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion
- F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
- F01N3/2066—Selective catalytic reduction [SCR]
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Toxicology (AREA)
- Ceramic Engineering (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
도 2는 Pt/Pd의 여러 비에서 상대적인 백금족 금속 비용을 묘사하는 그래프이다.
도 3a는 디젤 배기 가스 내(in-exhaust) 주입용 셋 업이고, 도 3b는 온도 대 시간 그래프이다.
도 4a 및 4b는 노화 1200사이클에 대한 막대 그래프를 도시한다.
도 5는 뜨거운 HD-FTP 시험: HC 성능의 결과를 도시한다.
도 6은 뜨거운 HD-FTP 시험에서 HC 전환 결과를 도시한다.
도 7은 뜨거운 HD-FTP 시험에서 N02/NO 형성 결과를 도시한다.
도 8은 SET 시험에서 N02 형성 결과를 도시한다.
도 9는 뜨거운 HD-FTP 시험에서 필터 재생-온도 상승 및 HC 슬립을 도시한다.
도 10은 SET 시험에서 필터 재생을 도시한다.
도 11은 본 발명에 따르는 구역화되거나 밴드화 된 기판의 실례이다.
도 12는 구역화된 기판을 위한 추가의 설계를 도시한다.
도 13은 본 발명에 따르는 구역화된 기판을 위한 추가의 설계를 도시한다.
엔진 시험:
엔진 시험을 위해, 다양한 산화 촉매를 개별적으로 또는 통상의 디젤 미립자 필터와 함께 평가했다.
상이한 샘플에 대한 PGM 적재량 및 분포는 도 1에 요약한다. 그램 단위의 총 귀금속 함량은 촉매의 용적과 관계가 있다. 각 샘플에 대한 전방 및 후방 구역 길이는 동일했다. 전체 PGM 양은 동일했다. 그 결과, 상이한 장치에 대한 귀금속 비용은 가변적이다. 도 2는 규정된 Pt 및 Pd 비용 기준에 대해 상이한 샘플에 대한 상대적 비용을 도시한다. 역사적으로, Pt가 Pd보다 더욱 더 높게 평가되었다는 것을 주시한다. 그 결과, 동등한 적재량에서, 백금-풍부 배합물이 더욱 고가이다. 촉매적 코팅은 당해 분야의 숙련가에게 통상적인 방법들을 사용하여 도포되었다.
본 발명에 따르는 산화 촉매 및 비교용 촉매를 생성하기 위해, 균질한 규소-알루미늄 혼합 산화물(혼합 산화물의 전체 질량과 관련하여 5중량% Si02; BET 표면적: 150m2/g)을 슬러리화하고 백금 및 팔라듐 니트레이트의 수용액으로 밀링했다. 생성되는 슬러리는 통상적인 딥 코팅 공정을 사용하여 직경 7.5in, 길이 5.2in의 실린더형 관통류 벌집형 바디에 도포했다. 관통류 벌집형 바디는 400셀/in2 및 셀 벽 두께 4mil를 가졌다. 생성되는 촉매를 300℃에서 4시간 지속 기간 동안 건조시킨 다음, 500℃에서 2시간의 지속 기간 동안 공기 중에서 하소시켰다.
이러한 방식으로 수득된 산화 촉매를, 특성화하기 전에 반복 활성 재생 사이클의 효과를 자극하기 위해 고안된 엔진 노화 공정에 적용했다. 이러한 목적을 위해, 엔진을 일정한 속도 및 적재에서 작동시켜 배기 가스 온도 350 내지 400℃를 생성했다. 두 DOC가 동시에 노화되도록 하기 위해, 엔진 배기 가스가 분할되어 병렬 배기 라인으로 유동하도록 하고 각각 디젤 연료 주입기, DOC 및 배기 라인이 장착된 배기 시스템이 구성되었다. 도 3a는 이 시스템의 사진이다. 디젤 연료를 주입하고, 이들 배기 지주 각각 내에서 증발시키고, 결국 연소되어 촉매 내에서 발열을 생성하는 DOC로 전달했다. 피드백 제어(feedback control)를 사용하여 디젤 연료 주입률을 조정함으로써 DOC 유출구 온도를 625℃에서 10분 동안 유지시켰다. 이어서, 연료 주입을 5분 동안 중지하여 DOC를 냉각시켰다. 도 3b는 이 노화 사이클의 실례이다. 각각의 DOC를 평가 전에 이 노화의 1200사이클 또는 300시간에 노출시켰다. 이러한 1200 사이클에 대한 각 노화 시스템 전반에 걸친 온도 프로파일을 예시하는 막대 그래프를 도 4a 및 4b에 제시한다.
노화 후, 각 산화 촉매를 뜨거운 HD-FTP 및 SET 시험 전반에서 HC 산화에 대해 평가했다.
도 5는 뜨거운 HD-FTP 시험 동안 DOC를 공급하는 표준 배출 밴치를 사용하여 측정된 엔진-출력 HC 수준의 등가성을 도시하고, 배출 벤치(bench) 측정 세트에 기초하는 표준 계산 방법을 사용하여 측정된 HC 전환 수준은 도 6에 요약된다. 이들은 1.4:1, 2:1, 및 4:1 Pt/Pd 비 촉매에 대해 거의 등가의 성능을 나타낸다. 1:1 촉매는 이러한 시험 조건하에 유사하지만 약간 열등한 HC 산화 성능을 제공했다.
도 7은 동일한 세트의 뜨거운 HD-FTP 시험 동안 FTIR로 측정된 NO2 대 NOx 비를 도시한다. 시험에서 약 250초 라이트-오프에 이어, 1.4:1 촉매는 지속적으로 상당히 높은 N02/NOx 비를 제공했다.
도 8은 상응하는 일련의 SET 시험 동안 FTIR로 측정된 상응하는 N02 대 NOx 비를 도시한다. 또한, 1.4:1 촉매는 지속적으로 상당히 높은 N02/NOx 비를 제공했다.
상이한 산화 촉매의 가열 능력은 HD-FTP 또는 SET 시험 전반에서 포획된 일련의 활성 재생에 대해 평가했다. HD-FTP 필터 재생 전반에 걸쳐 측정된 DOC-아웃 온도 및 HCl 수준의 비교는 도 9에 도시한다. 필터 재생에 의한 SET 시험의 상응하는 결과는 도 10에 도시된다. 두 유형의 시험에서, 모든 촉매는 활성 재생 동안 발열 및 제어 HC 슬립을 생성하는 유사한 능력을 나타냈다.
Claims (1)
- 디젤 배기 가스 정화 장치로서,
상기 장치는 배기 가스의 유동 방향으로 촉매들의 구역화 배열(zoned arrangement)을 포함하고,
(a) 선행 촉매(leading catalyst)로서, 제1 산화 촉매가 제1 캐리어 기판 상에 배치되고, 바로 다음에 후행 촉매(trailing catalyst)로서, 제2 산화 촉매가 제2 캐리어 기판 상에 배치되고, 상기 제1 산화 촉매 및 상기 제2 산화 촉매는 이들의 촉매적 활성 코팅에 팔라듐 및 백금을 함유하고, 상기 제1 캐리어 기판 및 상기 제2 캐리어 기판은 관통류 기판(through flow substrate)이거나,
(b) 선행 촉매로서, 제1 산화 촉매가 캐리어 기판 상에 배치되고, 바로 다음에 후행 촉매로서, 제2 산화 촉매가 상기 캐리어 기판 상에 배치되고, 상기 캐리어 기판은 관통류 기판이고, 상기 제1 산화 촉매 및 상기 제2 산화 촉매는 이들의 촉매적 활성 코팅에 팔라듐 및 백금을 함유하고;
추가로, 상기 선행 촉매 내의 백금 및 팔라듐의 총량은 상기 후행 촉매에 비해 높고,
추가로, 상기 선행 촉매 내의 백금 대 팔라듐의 비는 상대적으로 낮고, 상기 후행 촉매 내의 백금 대 팔라듐의 비는 상대적으로 높은, 디젤 배기 가스 정화 장치.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2010/007614 WO2012079598A1 (en) | 2010-12-14 | 2010-12-14 | Architectural diesel oxidation catalyst for enhanced no2 generator |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020137018400A Division KR20130129241A (ko) | 2010-12-14 | 2010-12-14 | 강화된 no2 발생기용 구조적 디젤 산화 촉매 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020197038770A Division KR20200003275A (ko) | 2010-12-14 | 2010-12-14 | 강화된 no2 발생기용 구조적 디젤 산화 촉매 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20170110168A true KR20170110168A (ko) | 2017-10-10 |
Family
ID=44326667
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020137018400A Ceased KR20130129241A (ko) | 2010-12-14 | 2010-12-14 | 강화된 no2 발생기용 구조적 디젤 산화 촉매 |
| KR1020177026490A Ceased KR20170110168A (ko) | 2010-12-14 | 2010-12-14 | 강화된 no2 발생기용 구조적 디젤 산화 촉매 |
| KR1020197038770A Ceased KR20200003275A (ko) | 2010-12-14 | 2010-12-14 | 강화된 no2 발생기용 구조적 디젤 산화 촉매 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020137018400A Ceased KR20130129241A (ko) | 2010-12-14 | 2010-12-14 | 강화된 no2 발생기용 구조적 디젤 산화 촉매 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020197038770A Ceased KR20200003275A (ko) | 2010-12-14 | 2010-12-14 | 강화된 no2 발생기용 구조적 디젤 산화 촉매 |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2651540B2 (ko) |
| JP (1) | JP5959530B2 (ko) |
| KR (3) | KR20130129241A (ko) |
| CN (1) | CN103269773B (ko) |
| BR (1) | BR112013014956B1 (ko) |
| WO (1) | WO2012079598A1 (ko) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007136753A2 (en) * | 2006-05-18 | 2007-11-29 | Clean Diesel Technologies, Inc. | Improvements in diesel particulate control |
| DE102012005508A1 (de) * | 2012-03-17 | 2013-09-19 | Daimler Ag | Katalysatorbauteil einer Kraftfahrzeug-Abgasreinigungsanlage und Verwendung eines Katalysatorbauteils |
| EP2931405A1 (de) | 2012-11-12 | 2015-10-21 | Umicore AG & Co. KG | KATALYSATORSYSTEM ZUR BEHANDLUNG VON NOx- UND PARTIKELHALTIGEM DIESELABGAS |
| GB201220912D0 (en) | 2012-11-21 | 2013-01-02 | Johnson Matthey Plc | Oxidation catalyst for treating the exhaust gas of a compression ignition engine |
| KR20150093203A (ko) * | 2012-12-06 | 2015-08-17 | 우미코레 아게 운트 코 카게 | 구획화된 디젤 산화 촉매 |
| EP2772302A1 (en) | 2013-02-27 | 2014-09-03 | Umicore AG & Co. KG | Hexagonal oxidation catalyst |
| WO2014164732A1 (en) * | 2013-03-12 | 2014-10-09 | Basf Corporation | Catalyst materials for no oxidation |
| US9333490B2 (en) * | 2013-03-14 | 2016-05-10 | Basf Corporation | Zoned catalyst for diesel applications |
| US9662636B2 (en) | 2014-04-17 | 2017-05-30 | Basf Corporation | Zoned catalyst composites |
| JP6545962B2 (ja) | 2015-01-22 | 2019-07-17 | 株式会社キャタラー | 排ガス浄化用触媒 |
| EP4464403A1 (en) * | 2015-03-19 | 2024-11-20 | BASF Corporation | Filter catalyzed with scr catalyst, systems and methods |
| JP2015180498A (ja) * | 2015-05-19 | 2015-10-15 | ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフトUmicore AG & Co.KG | No2生成器増強のための構造的ディーゼル酸化触媒 |
| RU2732441C2 (ru) * | 2015-06-12 | 2020-09-16 | Басф Корпорейшн | Система обработки выхлопного газа |
| SE539133C2 (sv) * | 2015-08-27 | 2017-04-11 | Scania Cv Ab | Avgasbehandlingssystem och förfarande för behandling av en avgasström |
| SE539129C2 (en) | 2015-08-27 | 2017-04-11 | Scania Cv Ab | Process and system for processing a single stream combustion exhaust stream |
| DE102016207484A1 (de) | 2016-05-02 | 2017-11-02 | Umicore Ag & Co. Kg | Dieseloxidationskatalysator |
| KR102401150B1 (ko) | 2016-07-19 | 2022-05-25 | 우미코레 아게 운트 코 카게 | 디젤 산화 촉매 컨버터 |
| EP3357558B1 (de) | 2017-02-03 | 2019-06-26 | Umicore Ag & Co. Kg | Katalysator zur reinigung der abgase von dieselmotoren |
| 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 |
| EP3598846A1 (de) * | 2018-07-19 | 2020-01-22 | Magna Steyr Fuel Systems GesmbH | Heizmodul |
| CN117085675B (zh) | 2019-06-26 | 2024-12-31 | 庄信万丰股份有限公司 | 用于压缩点火内燃机的复合分区氧化催化剂 |
| JP7407917B2 (ja) | 2019-10-16 | 2024-01-04 | 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 |
| CN115066294B (zh) | 2019-10-16 | 2024-02-02 | 庄信万丰股份有限公司 | 分区涂覆的、氨氧化(amox)和一氧化氮氧化两用的复合氧化催化剂 |
| EP3815780B1 (en) | 2019-10-30 | 2024-06-19 | Umicore AG & Co. KG | Diesel oxidation catalyst |
| EP3865209A1 (en) | 2020-02-17 | 2021-08-18 | UMICORE AG & Co. KG | Diesel oxidation catalyst |
| EP3906999A1 (de) | 2020-05-06 | 2021-11-10 | UMICORE AG & Co. KG | Oxidationskatalysator mit phosphorfaenger |
| CN117920209A (zh) * | 2023-10-28 | 2024-04-26 | 苏州松之源环保科技有限公司 | 一种镧铈双元素改性的高抗硫cdpf催化剂及其制备方法 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04118053A (ja) | 1989-12-29 | 1992-04-20 | Tokyo Roki Kk | エンジンの排気ガス浄化用触媒 |
| GB9802504D0 (en) | 1998-02-06 | 1998-04-01 | Johnson Matthey Plc | Improvements in emission control |
| US7084086B2 (en) | 2002-02-01 | 2006-08-01 | Cataler Corporation | Catalyst for purifying exhaust gases |
| DE102005017378B4 (de) * | 2005-04-14 | 2007-06-14 | Benteler Automobiltechnik Gmbh | Abgasreinigungsvorrichtung für Fahrzeuge |
| GB0600130D0 (en) * | 2006-01-06 | 2006-02-15 | Johnson Matthey Plc | Exhaust system comprising zoned oxidation catalyst |
| JP4742942B2 (ja) * | 2006-03-29 | 2011-08-10 | 三菱自動車工業株式会社 | 排気浄化装置 |
| US7576031B2 (en) | 2006-06-09 | 2009-08-18 | Basf Catalysts Llc | Pt-Pd diesel oxidation catalyst with CO/HC light-off and HC storage function |
| US20080127638A1 (en) | 2006-12-01 | 2008-06-05 | Marius Vaarkamp | Emission Treatment Systems and Methods |
| DE102007008954B4 (de) * | 2007-02-21 | 2009-12-17 | Umicore Ag & Co. Kg | Katalysatorsystem und seine Verwendung |
| KR100999616B1 (ko) | 2007-12-14 | 2010-12-08 | 기아자동차주식회사 | 배기 가스 내의 질소산화물 저감 장치 |
| EP2123345B1 (de) | 2008-05-23 | 2010-08-04 | Umicore AG & Co. KG | Vorrichtung zur Reinigung von Dieselabgasen |
| JP4507018B2 (ja) * | 2008-06-27 | 2010-07-21 | 三菱自動車工業株式会社 | 内燃機関の排気浄化装置 |
| US8637426B2 (en) * | 2009-04-08 | 2014-01-28 | Basf Corporation | Zoned catalysts for diesel applications |
| US8246923B2 (en) * | 2009-05-18 | 2012-08-21 | Umicore Ag & Co. Kg | High Pd content diesel oxidation catalysts with improved hydrothermal durability |
| US8557203B2 (en) * | 2009-11-03 | 2013-10-15 | Umicore Ag & Co. Kg | Architectural diesel oxidation catalyst for enhanced NO2 generator |
| BR112012012031B1 (pt) | 2009-11-20 | 2019-12-03 | Basf Se | filtro de fuligem catalisado, processo para fabricar um filtro de fuligem catalisado, sistema para tratar uma corrente de exaustão de motor diesel, e, método para tratar uma corrente de exaustão de motor diesel |
-
2010
- 2010-12-14 EP EP10794891.1A patent/EP2651540B2/en active Active
- 2010-12-14 KR KR1020137018400A patent/KR20130129241A/ko not_active Ceased
- 2010-12-14 WO PCT/EP2010/007614 patent/WO2012079598A1/en not_active Ceased
- 2010-12-14 KR KR1020177026490A patent/KR20170110168A/ko not_active Ceased
- 2010-12-14 JP JP2013543535A patent/JP5959530B2/ja active Active
- 2010-12-14 BR BR112013014956-6A patent/BR112013014956B1/pt active IP Right Grant
- 2010-12-14 CN CN201080070642.9A patent/CN103269773B/zh active Active
- 2010-12-14 KR KR1020197038770A patent/KR20200003275A/ko not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP2651540A1 (en) | 2013-10-23 |
| JP5959530B2 (ja) | 2016-08-02 |
| JP2014500145A (ja) | 2014-01-09 |
| KR20200003275A (ko) | 2020-01-08 |
| WO2012079598A1 (en) | 2012-06-21 |
| EP2651540B2 (en) | 2022-01-26 |
| CN103269773B (zh) | 2016-02-10 |
| BR112013014956A2 (pt) | 2016-09-13 |
| RU2013132350A (ru) | 2015-01-20 |
| KR20130129241A (ko) | 2013-11-27 |
| BR112013014956B1 (pt) | 2020-02-18 |
| CN103269773A (zh) | 2013-08-28 |
| EP2651540B1 (en) | 2019-05-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8557203B2 (en) | Architectural diesel oxidation catalyst for enhanced NO2 generator | |
| EP2651540B1 (en) | Architectural diesel oxidation catalyst for enhanced no2 generator | |
| US8057768B2 (en) | Device for the purification of diesel exhaust gases | |
| JP6315717B2 (ja) | 排気ガス浄化装置 | |
| JP6173336B2 (ja) | Scr触媒を含む基材モノリス | |
| JP5683598B2 (ja) | 改良型ディーゼル用酸化触媒 | |
| JP2018159380A (ja) | 車両ポジティブ点火内燃機関用排気システム | |
| WO2011162030A1 (ja) | 選択還元触媒を用いた排気ガス浄化触媒装置、排気ガス浄化方法、および排気ガス浄化触媒装置を搭載したディーゼル自動車 | |
| EP3639919B1 (en) | Exhaust gas purification system for a gasoline engine | |
| KR20130111979A (ko) | 디젤 미립자 필터 | |
| JP2017006904A (ja) | 車両ポジティブ点火内燃機関用排気システム | |
| WO2018025827A1 (ja) | コールドスタート対応尿素scrシステム | |
| EP3639907B1 (en) | Exhaust gas purification system for a gasoline engine | |
| EP3639920B1 (en) | Exhaust gas purification system for a gasoline engine | |
| WO2020079143A1 (en) | Exhaust gas purification system for a gasoline engine | |
| WO2020079137A1 (en) | Exhaust gas purification system for a gasoline engine | |
| WO2020079136A1 (en) | Exhaust gas purification system for a gasoline engine | |
| RU2575236C2 (ru) | Конструкционный катализатор окисления для отработавших газов дизельных двигателей для улучшенного генератора no2 | |
| JP2015180498A (ja) | No2生成器増強のための構造的ディーゼル酸化触媒 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A107 | Divisional application of patent | ||
| PA0104 | Divisional application for international application |
St.27 status event code: A-0-1-A10-A18-div-PA0104 St.27 status event code: A-0-1-A10-A16-div-PA0104 |
|
| PG1501 | Laying open of application |
St.27 status event code: A-1-1-Q10-Q12-nap-PG1501 |
|
| A201 | Request for examination | ||
| PA0201 | Request for examination |
St.27 status event code: A-1-2-D10-D11-exm-PA0201 |
|
| T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
| T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
| P11-X000 | Amendment of application requested |
St.27 status event code: A-2-2-P10-P11-nap-X000 |
|
| P13-X000 | Application amended |
St.27 status event code: A-2-2-P10-P13-nap-X000 |
|
| E902 | Notification of reason for refusal | ||
| PE0902 | Notice of grounds for rejection |
St.27 status event code: A-1-2-D10-D21-exm-PE0902 |
|
| T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
| T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
| T13-X000 | Administrative time limit extension granted |
St.27 status event code: U-3-3-T10-T13-oth-X000 |
|
| T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
| T13-X000 | Administrative time limit extension granted |
St.27 status event code: U-3-3-T10-T13-oth-X000 |
|
| T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
| T13-X000 | Administrative time limit extension granted |
St.27 status event code: U-3-3-T10-T13-oth-X000 |
|
| T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
| T13-X000 | Administrative time limit extension granted |
St.27 status event code: U-3-3-T10-T13-oth-X000 |
|
| AMND | Amendment | ||
| P11-X000 | Amendment of application requested |
St.27 status event code: A-2-2-P10-P11-nap-X000 |
|
| P13-X000 | Application amended |
St.27 status event code: A-2-2-P10-P13-nap-X000 |
|
| E601 | Decision to refuse application | ||
| PE0601 | Decision on rejection of patent |
St.27 status event code: N-2-6-B10-B15-exm-PE0601 |
|
| X091 | Application refused [patent] | ||
| T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
| T13-X000 | Administrative time limit extension granted |
St.27 status event code: U-3-3-T10-T13-oth-X000 |
|
| T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
| T13-X000 | Administrative time limit extension granted |
St.27 status event code: U-3-3-T10-T13-oth-X000 |
|
| AMND | Amendment | ||
| P11-X000 | Amendment of application requested |
St.27 status event code: A-2-2-P10-P11-nap-X000 |
|
| P13-X000 | Application amended |
St.27 status event code: A-2-2-P10-P13-nap-X000 |
|
| PX0901 | Re-examination |
St.27 status event code: A-2-3-E10-E12-rex-PX0901 |
|
| PX0601 | Decision of rejection after re-examination |
St.27 status event code: N-2-6-B10-B17-rex-PX0601 |
|
| X601 | Decision of rejection after re-examination | ||
| T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
| T13-X000 | Administrative time limit extension granted |
St.27 status event code: U-3-3-T10-T13-oth-X000 |
|
| A107 | Divisional application of patent | ||
| J201 | Request for trial against refusal decision | ||
| PA0104 | Divisional application for international application |
St.27 status event code: A-0-1-A10-A18-div-PA0104 St.27 status event code: A-0-1-A10-A16-div-PA0104 |
|
| PJ0201 | Trial against decision of rejection |
St.27 status event code: A-3-3-V10-V11-apl-PJ0201 |
|
| J301 | Trial decision |
Free format text: TRIAL NUMBER: 2019101004275; TRIAL DECISION FOR APPEAL AGAINST DECISION TO DECLINE REFUSAL REQUESTED 20191230 Effective date: 20200929 |
|
| PJ1301 | Trial decision |
St.27 status event code: A-3-3-V10-V15-crt-PJ1301 Decision date: 20200929 Appeal event data comment text: Appeal Kind Category : Appeal against decision to decline refusal, Appeal Ground Text : 2017 7026490 Appeal request date: 20191230 Appellate body name: Patent Examination Board Decision authority category: Office appeal board Decision identifier: 2019101004275 |
|
| P22-X000 | Classification modified |
St.27 status event code: A-2-2-P10-P22-nap-X000 |
|
| P22-X000 | Classification modified |
St.27 status event code: A-2-2-P10-P22-nap-X000 |