KR890009459A - 촉매 - Google Patents

촉매 Download PDF

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Publication number
KR890009459A
KR890009459A KR1019880016504A KR880016504A KR890009459A KR 890009459 A KR890009459 A KR 890009459A KR 1019880016504 A KR1019880016504 A KR 1019880016504A KR 880016504 A KR880016504 A KR 880016504A KR 890009459 A KR890009459 A KR 890009459A
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South Korea
Prior art keywords
copper
oxide
cerium
catalyst
cerium oxide
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KR1019880016504A
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KR970009558B1 (ko
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프란시스 디웰 앨런
할레트 크리스토퍼
폴 앤셀 그래함
윌리암 헤이스 죤
Original Assignee
주디쓰 이.피그논
존슨 맛쎄이 퍼블릭 리미티드 캄파니
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Publication of KR890009459A publication Critical patent/KR890009459A/ko
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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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation
    • 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
    • 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
    • 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
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/83—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • B01J35/612—Surface area less than 10 m2/g
    • 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
    • B01J37/03—Precipitation; Co-precipitation
    • B01J37/031—Precipitation
    • 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
    • B01J37/08—Heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B01D2255/2063—Lanthanum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B01D2255/2065—Cerium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20761—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/209—Other metals
    • B01D2255/2092—Aluminium
    • 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)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

내용 없음

Description

촉매
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는 촉매활성 시험을 위한 장치 및 계통배열도,
제 2 도 내지 제 10 도는 이 시험의 결과의 도시도이다.

Claims (11)

  1. 본질적으로 산화구리과 산화세륨의 친밀한 혼합물로 구성되어 있고 산화구리의 중량은 산화세륨의 중량보다 적은 것을 특징으로 하는 촉매.
  2. 제 1 항에 있어서, 그 표면적이 적어도 4m2g-1인 것을 특징으로 하는 촉매.
  3. 제 1 항 또는 2항에 있어서, 산화세륨에 대한 산화구리(구리로소 측정됨)의 비율이 0.1 내지 10중량%인 것을 특징으로 하는 촉매.
  4. 제 1 항 내지 3항중의 어느하나에 있어서, 산화세륨(세륨으로 측정된)의 10중량% 이하의 비율로 회토류 금속산화물(금속으로 측정된)을 함유하는 것을 특징으로 하는 촉매.
  5. 하소하면 산화구리를 생성하는 구리화합물로 함침된 산화세륨을 하소하는 과정으로 되어 있는 것을 특징으로 하는 제 1 항 내지 4항중의 어느한항에 기재되어 있는 촉매를 제조하는 방법.
  6. 제 5 항에 있어서, 산화세륨을 가열에 의해 산화구리를 생성하도록 분해될수 있는 구리염의 수용액으로 함침시키고 함침된 산화세륨을 산화구리를 생성하도록 하소하는 것을 특징으로 한는 방법.
  7. 제 5 항에 있어서, 구리염의 수용액으로 산화세륨을 함침하고 염이 수산화구리 또는 탄산구리로 전환되도록 함침된 산화 세륨을 처리하고 수산화구리 또는 탄산구리가 분해하여 산화 구리를 생성하도록, 처리된 산화세륨을 하소하는 것을 특징으로 하는 방법.
  8. 구리염과 세륨염의 수용액으로부터, 가열에 의해 분해하여 각각 산화구리와 산화세륨을 생성하는 구리 화합물 및 세륨 화합물을 침전시키고, 그 침전을 산화구리와 산화세륨을 생성하도록 하소하는 과정으로 되어있는 것을 특징으로 하는 제 1 항 내지 4항중의 어느하나에 기재된 촉매를 제조하는 방법.
  9. 산화구리와 산호세륨을 친밀하게 혼합하는 것을 특징으로 하는 제 1 항 내지 4항중의 어느하나에 기재된 촉매를 제조하는 방법.
  10. 촉매로서 제 1 항 내지 4항중의 어느하나에 기재된 촉매를 사용하는 것을 특징으로 하는 화학반응을 촉매하는 방법.
  11. 그 배기장치에는 엔진의 배기방출물중에 있는 산화질소, 일산화탄소 및 탄화수소를 질소, 이산화탄소 및 물로 전환시키는 촉매가 수용되어 있는 내연기관에 있어서, 촉매가 제 1 항 내지 4항중의 어느하나에 기재되어 있는 대로인 것을 특징으로 하는 내연기관.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880016504A 1987-12-11 1988-12-12 산화구리 및 세리아 촉매 KR970009558B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878728996A GB8728996D0 (en) 1987-12-11 1987-12-11 Catalysts
GB8728996 1987-12-11

Publications (2)

Publication Number Publication Date
KR890009459A true KR890009459A (ko) 1989-08-02
KR970009558B1 KR970009558B1 (ko) 1997-06-14

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ID=10628375

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880016504A KR970009558B1 (ko) 1987-12-11 1988-12-12 산화구리 및 세리아 촉매

Country Status (9)

Country Link
US (1) US4996180A (ko)
EP (1) EP0320243B1 (ko)
JP (1) JPH01266850A (ko)
KR (1) KR970009558B1 (ko)
AT (1) ATE157909T1 (ko)
AU (1) AU616922B2 (ko)
CA (1) CA1328653C (ko)
DE (1) DE3856024T2 (ko)
GB (1) GB8728996D0 (ko)

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Also Published As

Publication number Publication date
ATE157909T1 (de) 1997-09-15
AU616922B2 (en) 1991-11-14
GB8728996D0 (en) 1988-01-27
KR970009558B1 (ko) 1997-06-14
CA1328653C (en) 1994-04-19
US4996180A (en) 1991-02-26
EP0320243B1 (en) 1997-09-10
EP0320243A1 (en) 1989-06-14
DE3856024D1 (de) 1997-10-16
JPH01266850A (ja) 1989-10-24
AU2675388A (en) 1989-07-13
DE3856024T2 (de) 1998-01-29

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