KR940003601A - 개선된 상온 시동 거동에 의한 촉매적 자동차 방출물 제어방법 - Google Patents

개선된 상온 시동 거동에 의한 촉매적 자동차 방출물 제어방법 Download PDF

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KR940003601A
KR940003601A KR1019930015388A KR930015388A KR940003601A KR 940003601 A KR940003601 A KR 940003601A KR 1019930015388 A KR1019930015388 A KR 1019930015388A KR 930015388 A KR930015388 A KR 930015388A KR 940003601 A KR940003601 A KR 940003601A
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hydrocarbon adsorbent
heat capacity
adsorbent
hydrocarbon
catalytically active
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KR100280284B1 (ko
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린트너 디터
록스 에크베르트
엥글러 베른트
오스트가테 클라우스
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볼브강 베버,라인하르트 헤르만
데구사 아크티엔게젤샤프트
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    • 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
    • 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
    • B01D53/02—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 by adsorption, e.g. preparative gas chromatography
    • B01D53/04—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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0454—Controlling adsorption
    • 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
    • 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
    • F01N3/10—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
    • F01N3/101—Three-way 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
    • F01N3/10—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 ; Methods of operation or control of catalytic converters
    • 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
    • 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
    • F01N2370/00—Selection of materials for exhaust purification
    • F01N2370/22—Selection of materials for exhaust purification used in non-catalytic purification apparatus
    • F01N2370/24—Zeolitic material
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Materials Engineering (AREA)
  • Toxicology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Catalysts (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

본 발명은 물질의 적절한 선택 및 흡착제의 형태를 통해 후속적으로 도입되는 촉매의 열 용량보다 열 용량이 더 큰 탄화수소 흡착제를 배기 파이프에 실제 배기 가스 촉매로다 선행하여 통과시켜 내연기관의 상온 시동동안 탄화수소 방출을 상당히 감소시키는 것에 관한 것이다.

Description

개선된 상온 시동 거동에 의한 촉매적 자동차 방출물 제어방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (8)

  1. 탄화수소 흡착제의 비열 용량(단위용적당 열 용량으로서 정의됨)이 탄화수소 흡착제의 뒤에 있는 3원 촉매의 비열 용량 보다 큼을 특징으로 하는, 공지된 3원 촉매가 배기 가스 스트림 속에서 촉매 앞에 배열되고, 상온 시동후, 3원 촉매가 이의 충분한 작동온도 및 효율에 도달할 때까지, 배기 가스중에 존재하는 탄화수소를 흡착하고 가열된 추에 탄화수소만을 배기가스로 방출시켜, 탈착된 탄화수소가 비교적 활성을 찾게 된 3원 촉매에 의해 무해한 성분으로 전환될수 있도록 하는 탄화수소 흡착제를 사용하여 상온 시동단계 동안의 탄화수소 억제를 개선시키는 촉매적 자동차 방출물 제어방법.
  2. 제1항에 있어서, 탄화수소 흡착제의 비열 용량과 3원 촉매의 비열 용량간의 비가 1.10 내지 3.0 : 1임을 특징으로 하는 방법.
  3. 제1항 또는 제2항에 있어서, 탄화수소 흡착제와 3원 촉매가 비열 용량의 비가 제2항에서 정의한 바와 같고 탄화수소-흡착 피복물 또는 촉매 활성 피복물이 공지된 방법으로 도포된 벌집형인 단일체 지지체임을 특징으로 하는 방법.
  4. 제3항에 있어서, 탄화수소 흡착제가. Al에 대한 Si의 비가 50이상, 바람직하게는 100이상이고 벌집형 용적 1ℓ당 100 내지 400g의 양으로 도포된 온도-안정성 탈알루미늄화 Y-제올라이트임을 특징으로 하는 방법.
  5. 제3항 또는 제4항에 있어서, 탄화수소 흡착제의 피복물이 표면적이 큰 담체 산화물의 전형적인 촉매 활성 피복물 추가량을 함유하고 여기에 도포되는 전이계열의 격자-안정화되거나 순수한 알루미늄 산화물, 도핑되거나 순수한 세륨 산화물 및 도핑이되거나 순수한 지르코늄 산화물을 함유하는 플라티늄족 금속으로부터의 촉매 활성 금속 성분을 함유하고, 피복물중의 제올라이트 흡착제와 표면적이 큰 담체 산화물의 중량비가 4 : 1 내지 1 : 2이며 촉매 활성 금속 성분이 담체 산화물에는 미세하게 분포하지만 제올라이트 흡착제에는 분포하지 않음을 특징으로 하는 방법.
  6. 제3항 또는 제4항에 있어서, 탄화수소 흡착제용 단일체 지지체가 표면적이 큰 담체 산화물의 촉매 활성 피복물을 포함하고 여기에 도포되는 플라티늄족 금속으로부터의 촉매 활성 금속 성분을 포함하고, 제3항에 따른 탄화수소 흡착제의 또 다른 피복물을 두 피복물에 사용되는 지지체 용적 1ℓ당 50 내지 200g의 양으로 촉매 활성 피복물에 도포시킴을 특징으로 하는 방법.
  7. 제3항 내지 제6항중의 어느 한 항에 있어서, 탄화수소 흡착제와 3원 촉매의 일체식 지지체가 제2항에 상응하는 상이한 비열 용량을 갖는 코르디에리트 또는 멀라이트의 세라믹 단일체임을 특징으로 하는 방법.
  8. 제3항 내지 제6항중의 어느 한 항에 있어서, 탄화수소 흡착제의 일체식 지지체가 세라믹 단일체이고, 3원 촉매의 지지체가 가열가능한 금속 단일체이며, 세라믹 단일체와 금속단일체의 비열 용량이 제2항에 상응함을 특징으로 하는 당법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930015388A 1992-08-10 1993-08-09 상온 시동 거동이 개선된 촉매적 자동차 배기 가스 정제방법 KR100280284B1 (ko)

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Application Number Priority Date Filing Date Title
DE4226394A DE4226394C2 (de) 1992-08-10 1992-08-10 Verfahren zur katalytischen Autoabgasreinigung mit verbessertem Kaltstartverhalten
DEP4226394.8 1992-08-10

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KR940003601A true KR940003601A (ko) 1994-03-12
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EP (1) EP0582971B1 (ko)
JP (1) JP3484205B2 (ko)
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CN (1) CN1084611A (ko)
AR (1) AR247829A1 (ko)
AT (1) ATE160295T1 (ko)
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BR (1) BR9303319A (ko)
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DE (2) DE4226394C2 (ko)
DK (1) DK0582971T3 (ko)
ES (1) ES2109401T3 (ko)
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DE4008789C2 (de) * 1990-03-19 1993-12-16 Schatz Oskar Verfahren und Vorrichtung zur Behandlung der Abgase von Verbrennungsmotoren
US5125231A (en) * 1990-06-08 1992-06-30 Corning Incorporated Dual converter engine exhaust system for reducing hydrocarbon emissions
US5078979A (en) * 1990-07-20 1992-01-07 Uop Molecular sieve bed/catalyst to treat automotive exhaust
US5051244A (en) * 1990-07-20 1991-09-24 Uop Use of a molecular sieve bed to minimize emissions during cold start of internal combustion engines

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FI933511A (fi) 1994-02-11
NO304584B1 (no) 1999-01-18
EP0582971B1 (de) 1997-11-19
CA2103647C (en) 1999-03-23
NO932831L (no) 1994-02-11
BR9303319A (pt) 1994-03-08
PL300013A1 (en) 1994-02-21
AU664911B2 (en) 1995-12-07
TW322428B (ko) 1997-12-11
ATE160295T1 (de) 1997-12-15
TR27986A (tr) 1995-11-07
JP3484205B2 (ja) 2004-01-06
AU4453793A (en) 1994-02-17
NO932831D0 (no) 1993-08-09
HU9302303D0 (en) 1993-10-28
DE59307696D1 (de) 1998-01-02
DE4226394A1 (de) 1994-02-17
CA2103647A1 (en) 1994-02-11
CZ151793A3 (en) 1994-10-19
HU212759B (en) 1996-11-28
DE4226394C2 (de) 1999-01-21
CZ288953B6 (cs) 2001-10-17
PL177656B1 (pl) 1999-12-31
FI933511A0 (fi) 1993-08-09
MX9304814A (es) 1994-05-31
EP0582971A1 (de) 1994-02-16
AR247829A1 (es) 1995-04-28
KR100280284B1 (ko) 2001-02-01
ES2109401T3 (es) 1998-01-16
JPH06154538A (ja) 1994-06-03
UA27233C2 (uk) 2000-08-15
HUT67715A (en) 1995-04-28
CN1084611A (zh) 1994-03-30
ZA935775B (en) 1994-03-08
DK0582971T3 (da) 1998-03-30
FI104750B (fi) 2000-03-31

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