KR950032995A - 온도 활설 제올라이트 인-라인 흡착시스템 - Google Patents

온도 활설 제올라이트 인-라인 흡착시스템 Download PDF

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KR950032995A
KR950032995A KR1019950010351A KR19950010351A KR950032995A KR 950032995 A KR950032995 A KR 950032995A KR 1019950010351 A KR1019950010351 A KR 1019950010351A KR 19950010351 A KR19950010351 A KR 19950010351A KR 950032995 A KR950032995 A KR 950032995A
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catalyst
engine exhaust
temperature
molecular sieve
exhaust gas
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다이아마나고다 페틸 맬라나고다
루위스 윌리암스 지미
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알프레드 엘. 미첼슨
코닝 인코오포레이티드
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    • 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
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/9454—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific device
    • 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
    • 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
    • B01D53/9481—Catalyst preceded by an adsorption device without catalytic function for temporary storage of contaminants, e.g. during cold start
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/011—Exhaust or silencing apparatus characterised by constructional features having two or more purifying devices arranged in parallel
    • F01N13/017—Exhaust or silencing apparatus characterised by constructional features having two or more purifying devices arranged in parallel 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
    • 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0835—Hydrocarbons
    • 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0871—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents using means for controlling, e.g. purging, the absorbents or adsorbents
    • F01N3/0878—Bypassing absorbents or adsorbents
    • 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
    • F01N3/2053—By-passing catalytic reactors, e.g. to prevent overheating
    • 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
    • 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
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/12—Combinations of different methods of purification absorption or adsorption, and catalytic conversion
    • 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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  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
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  • General Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Exhaust Gas After Treatment (AREA)
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Abstract

본 발명은 엔진 배기 시스템에 관한 것으로, 이는 촉매 변환장치가 이의 효과적인 작동 온도에 도달하기 전에 엔진 시동(냉각-스타트)동안 배출되는 탄화수소의 양을 감소시키기 위한 것이다. 상기 시스템은 흐름조절장치, 특히 이중-금속 날개를 포함하는데, 이는 제1온도에서 대부분의 배기가스를 탄화수소 흡착을 위해 분자체 구조물로 유도하는 제1위치를 위치하고, 제2온도에서는 엔진 배기가스가 분자체 구조물을 우회하여 라이트-오프 촉매에서 번-오프 촉매로 직접 유도하는 제2위치를 위치한다.

Description

온도 활설 제올라이트 인-라인 흡착시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2도는 흡착제가 하우징의 절반을 차지하는 본 발명에 따른 일실시예로서; 또한 이중-금속성 날개의 상대적 위치를 나타내는 종단면도; 제3도는 주촉매 변환장치 또는 3원 촉매가 하우징의 다른 절반에 위치하는 제2도의 또다른 실시예의 종단면도; 제4도는 흡착제가 코어를 구비하는 허니컴 구조물이고;상기의 제1(닫힌)위치에서는 이중-금속성 날개가 실질적인 모든 배기가스를 흡착제로 통과시키도록 코어를 본 발명에 따른 다른 실시예의 단면도.

Claims (10)

  1. 라이트-오프 촉매, 상기 라이드-오프 촉매 하부의 하우징 및 상기 하우징 하의 번-오프 촉매를 포함하고, 상기 번-오프 촉매는 라이트-오프 온도를 가져서 탄화수소를 이산화탄소 및 물로 전화시키며, 상기 하우징은 입구 또는 상부말단 및 출구 또는 하부말단을 구비하면서 제1영역 및 제2영역을 포함하고, 상기 영역은 입구에서 출구말단까지 세로방향으로 연장된 분할벽에 의해 분리되며, 상기 영역중 하나는 그 내부에 배치된 제1온도 및 제2온도를 가지는 탄화수소를 흡착하기 위한 분자체 구조물을 구비하고, 상기 하우징의 상부말단에 고정 부착된 흐름조절장치는 분자체의 온도가 제1온도 미만일 때 제1위치에 위치하며, 상기 분자체가 제1온도일 때 제2위치에 위치하는 것을 특징으로 하는 탄화수소를 함유하는 엔진 배기가스용 엔진 배기시스템.
  2. 제1항에 있어서, 상기 제1온도가 80-100℃의 범위이고 또는 제2온도가 300-400℃의 범위인 것을 특징으로 하는 탄화수소를 함유하는 엔진 배기가스용 엔진 배기시스템.
  3. 제1항 또는 제2항에 있어서, 상기 흐름조절장치는 제1위치에서 실질적으로 모든 배기가스를 분자체 구조물로 유도하여 탄화수소를 흡착시킨 다음 번오프 촉매로 유도하고, 제2위치에서는 대부분의 배기가스를 열린 또는 자유-흐름 영역으로 유도하고, 소량의 배기가스를 분자체 구조물로 유도한 후, 번-오프 촉매로 유도하는 것을 특징으로 하는 탄화수소를 함유하는 엔진 배기가스용 엔진 배기시스템.
  4. 제1항, 제2항 또는 제3항에 있어서, 상기 흐름조절장치는 번오프 촉매가 실질적으로 부분의 배기가스를 번-오프 촉매로 유도하고, 소량의 배기가스를 분자체 구조물로 유도하는데, 이는 번-오프 촉매로 통과시키는 라이트-오프 온도에 도달한 후, 제2위치하고, 또한 온도에 민감한 이중-금속 날개를 포함하는 것임을 특징으로 하는 탄화수소를 함유하는 엔진 배기가스용 엔진 배기시스템.
  5. 제4항에 있어서, 상기 소량의 배기가스는 번-오프 촉매가 라이트-오프 온도에 도달할 때 상기 분자체 구조물이 탈착온도에 도달하기에 충분한 양이며, 선택적으로 상기 양은 총 배기가스의 5재지 50%의 범위임을 특징으로 하는 탄화수소를 함유하는 엔진 배기가스용 엔진 배기시스템.
  6. 제1항 내지 제5항 중 어느 한 항에 있어서, 상기 하우징은 일산화탄소, 물 및 Nox를 이산화탄소, 물 및 질소를 전환시키는 3원 촉매 또는 하우징의 제2영역에 배치된 다른 주촉매 전환장치를 더욱 포함하는 것을 특징으로 하는 탄화수소를 함유하는 엔진 배기가스용 엔진 배기시스템.
  7. 제1항 내지 제6항 중 어느 한 항에 있어서, 상기 분자체 구조물은 기판상에 지지된 제올라이트 및 바인더의 와쉬코트 슬러리를 포함하는 것을 특징으로 하는 탄화수소를 함유하는 엔진 배기가스용 엔진 배기시스템.
  8. 제7항에 있어서, 상기 기판 및/또는 분자체 구조물은 허니컴 구조물임을 특징으로 하는 탄화수소를 함유하는 엔진 배기가스용 엔진 배기시스템.
  9. 제1항 내지 제8항 중 어느 한 항에 있어서, 상기 흡착제는 촉매를 더욱 포함하는 것을 특징으로 하는 엔진 배기시스템.
  10. 제1항 내지 제9항 중 어느 한 항에 있어서, 상기 분자체 구조물은 ZSM-5, 베타, 초-안정 Y, 몰덴나이트 및 이들의 혼합물로부터 선택된 제올라이트임인 것을 특징으로 하는 탄화수소를 함유하는 엔진 배기가스용 엔진 배기시스템.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950010351A 1994-04-28 1995-04-28 온도 활설 제올라이트 인-라인 흡착시스템 Withdrawn KR950032995A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/234,680 1994-04-28
US08/234,680 US5582003A (en) 1994-04-28 1994-04-28 Temperature actuated zeolite in-line adsorber system

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KR950032995A true KR950032995A (ko) 1995-12-22

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US (1) US5582003A (ko)
KR (1) KR950032995A (ko)
AU (1) AU2246495A (ko)
TW (1) TW293866B (ko)
WO (1) WO1995030823A1 (ko)

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US5921079A (en) * 1997-11-03 1999-07-13 Harris International Sales Corporation Emission control apparatus
US6052989A (en) * 1998-01-23 2000-04-25 Ford Global Technologies, Inc. Emission control system for internal combustion engines
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