KR900701375A - 자동차 배기가스 처리방법 및 처리용 촉매 합성물 - Google Patents
자동차 배기가스 처리방법 및 처리용 촉매 합성물Info
- Publication number
- KR900701375A KR900701375A KR1019900700183A KR900700183A KR900701375A KR 900701375 A KR900701375 A KR 900701375A KR 1019900700183 A KR1019900700183 A KR 1019900700183A KR 900700183 A KR900700183 A KR 900700183A KR 900701375 A KR900701375 A KR 900701375A
- Authority
- KR
- South Korea
- Prior art keywords
- support
- group
- oxygen storage
- exhaust gas
- storage component
- Prior art date
Links
Classifications
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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]
- B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
-
- 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
- B01D53/38—Removing components of undefined structure
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- 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
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/63—Platinum group metals with rare earths or actinides
-
- 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
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
-
- 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
- B01J37/024—Multiple impregnation or coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/908—O2-storage component incorporated in the catalyst
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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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Combustion & Propulsion (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (11)
- 제1지지체 상에 분산되는, 백금 , 팔라듐, 로듐, 루테늄 및 이리듐으로 구성되는 군으로부터 선택된, 하나이상의 귀금속 성분: 및 그위로 분산위치되는 하나이상의 산소저장성분 및 임의로 제2지지체(내화성 무기 산화물)를 포함하는 상부층을 갖는 제1지지체(알루미나, 실리카, 티타니아, 지르코니아, 알루미노실리케이트, 및 그의 혼합물로 구성된 군으로부터 선택된 내화성 무기산화물)로 구성되는 촉매합성물에 자동차 배기가스를 접촉시킴을 특징으로 하는, 자동차 배기가스중 황화수소 함량을 극소화시키는 방법.
- 제1항에 있어서, 상기 제1지지체가 펠릿형태인 것을 특징으로 하는 방법
- 제1항에 있어서, 상기 제1지지체가 고체 세라믹이나 금속성 벌집형 단일체 담체 상에 침착된 것임을 특징으로 하는 방법.
- 제1항에 있어서, 상기 제1지지체가 알루미나인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 귀금속 성분이 제1지지체의 0.01-4중량% 범위의 농도로 각각 존재하는 백금, 팔라듐 또는 그 혼합물, 및 임의로 제1지지체의 0.01-2중량% 농도로 존재하는 로듐으로 구성된 것을 특징으로하는 방법.
- 제1항에 있어서. 상기 상부층내외 산소저장성분이 제1지지체의 2-75중량%외 농도로 존재하는 것을 특징으로 하는 방법.
- 제1항에 있어서, 제2지지체가 상기 상부층이 80중량%이하 범위의 농도로 존재하는 것을 특징으로 하는 방법.
- 제1항에 있어서. 상기 산소저장성분이 철.니켈.코발트 및 회토류 금속으로 구성된 군으로부터 선택된 금속의 산화물인 것을 특징으로 하는 방법.
- 제1항에 있어서. 상기 산소저장성분이 산화세륨인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 제2지지체가 알루미나, 실리카, 티타니아, 지르코니아 및 알루미노실리케이트로 구성된 군으로부터 선택된 것을 특징으로 하는 방법.
- 제1지지체 상에 분산되는 백금, 팔라듐, 로듐, 루테늄 및 이리듐으로 구성되는 군으로부터 선택된 하나 이상의 귀금속 성분: 및 그위로 분산위치되는 하나이상의 산소저장성분 및 임의로 제2지지체(내화성 무기 산화물)를 포함하는 상부층을 갖는 제1지지체(알루미나, 실리카, 티타니아, 지로코니아, 알루미노실리케이트. 및 그 혼합물로 구성된 군으로부터 선택된 내화성 무기산화물)로 구성됨을 특징으로 하는 자동차 배기가스 처리 촉매 합성물.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201245 | 1988-06-01 | ||
US07/201,245 US4868148A (en) | 1987-08-24 | 1988-06-01 | Layered automotive catalytic composite |
PCT/US1989/002375 WO1989011906A1 (en) | 1988-06-01 | 1989-05-31 | A layered automotive catalytic composite |
Publications (1)
Publication Number | Publication Date |
---|---|
KR900701375A true KR900701375A (ko) | 1990-12-01 |
Family
ID=22745080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019900700183A KR900701375A (ko) | 1988-06-01 | 1989-05-31 | 자동차 배기가스 처리방법 및 처리용 촉매 합성물 |
Country Status (7)
Country | Link |
---|---|
US (1) | US4868148A (ko) |
EP (1) | EP0418305B1 (ko) |
JP (1) | JPH03502721A (ko) |
KR (1) | KR900701375A (ko) |
AU (1) | AU624390B2 (ko) |
MX (1) | MX169039B (ko) |
WO (1) | WO1989011906A1 (ko) |
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DE4306259A1 (de) * | 1993-03-01 | 1994-09-08 | Bayer Ag | Dialkyl-1-H-3-(2,4-dimethylphenyl)-pyrrolidin-2,4-dione, ihre Herstellung und ihre Verwendung |
-
1988
- 1988-06-01 US US07/201,245 patent/US4868148A/en not_active Expired - Fee Related
-
1989
- 1989-05-31 AU AU37572/89A patent/AU624390B2/en not_active Ceased
- 1989-05-31 MX MX016264A patent/MX169039B/es unknown
- 1989-05-31 EP EP89906879A patent/EP0418305B1/en not_active Expired - Lifetime
- 1989-05-31 KR KR1019900700183A patent/KR900701375A/ko not_active Application Discontinuation
- 1989-05-31 JP JP1506597A patent/JPH03502721A/ja active Pending
- 1989-05-31 WO PCT/US1989/002375 patent/WO1989011906A1/en active IP Right Grant
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EP0418305A1 (en) | 1991-03-27 |
AU624390B2 (en) | 1992-06-11 |
JPH03502721A (ja) | 1991-06-20 |
AU3757289A (en) | 1990-01-05 |
WO1989011906A1 (en) | 1989-12-14 |
US4868148A (en) | 1989-09-19 |
MX169039B (es) | 1993-06-17 |
EP0418305B1 (en) | 1992-12-16 |
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