KR940003609A - 내부 연소 및 정지 공급기관 으로부터의 배기 가스를 처리하기 위한 촉매 - Google Patents

내부 연소 및 정지 공급기관 으로부터의 배기 가스를 처리하기 위한 촉매 Download PDF

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KR940003609A
KR940003609A KR1019930016762A KR930016762A KR940003609A KR 940003609 A KR940003609 A KR 940003609A KR 1019930016762 A KR1019930016762 A KR 1019930016762A KR 930016762 A KR930016762 A KR 930016762A KR 940003609 A KR940003609 A KR 940003609A
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carrier
catalyst
impregnated
platinum
palladium
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KR100224522B1 (ko
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모한 바신 마단
스코트 쟈렐 마이클
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카렌 엘.존슨
유니온 카바이드 케미칼즈 앤드 플라스틱스 테크놀러지 코포레이션
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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
    • 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
    • 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
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • 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
    • 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
    • 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
    • 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
    • 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
    • B01J35/63—Pore volume
    • B01J35/633—Pore volume less than 0.5 ml/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
    • 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
    • B01J35/64—Pore diameter
    • B01J35/653—500-1000 nm
    • 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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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

본 발명은 내부 연소 기관, 특히 자동차 및 공업용 정지 공급 기관으로부터의 가스상 폐기물을 연소시키기 위한 개선된 배기 가스 촉매 및 이를 제조하는 방법을 제공하기 위한 것이다. 배기 가스 촉매는 실제적으로 순수한 α-알루미나 캐리어 및 백금, 팔라듐 및 이들의 혼합물중에서 선택된 하나 이상의 귀금속을 포함하여 장기간 사용하는데 있어서 매우 우수한 안정성을 나타낸다.

Description

내부 연소 및 정지 공급 기관으로부터의 배기 가스를 처리하기 위한 촉매
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (10)

  1. 실제적으로 순수한 다공성 α-알루미나 캐리어(carrier)및 캐리어내에 함침된, 백금, 팔라듐 및 이들의 혼합물로 이루어진 그룹중에서 선택된, 유효량의 귀금속을 포함함을 특징으로 하는, 일산화탄소 및 탄화수소를 연소시키고 질소 산화물을 환원시키기 위한 배기 가스 촉매.
  2. 제1항에 있어서, 캐리어내에 함침된, 세륨, 몰리브덴. 바나듐, 망간, 크롬, 티탄, 란탄, 니오븀, 지르코늄 및 희토류 원소로 이루어진 그룹중에서 선택된 하나 이상의 전이 금속을 추가로 포함하는 촉매.
  3. 제1항에 있어서, 로듐을 추가로 포함하는 촉매.
  4. 제1항에 있어서, 귀금속의 양이 촉매의 약 0.01내지 약2중량%를 구성하는 촉매.
  5. 제1항에 있어서, 귀금속이 0.01 : 1내지 100 : 1의 중량비로 존재하는 백금과 팔라듐의 혼합물인 촉매.
  6. 제1항에 있어서, α-알루미나 캐리어가 단일암체(monolithic)구조를 지니는 촉매.
  7. a)α-알루미나 캐리어를 백금, 팔라듐 및 이들의 혼합물로 이루어진 그룹중에서 선택된 귀금속의 화합물 및 용매를 함유하는 용액과 접촉시킴으로써, 상기한 캐리어를 상기한 귀금속에 함침시키고, b)용매의 약 90%이상이 캐리어로부터 제거될 때까지, 함침된 캐리어를 시간당 캐리어 1g당 통해 약 1g미만의 속도로 건조시킨 다음, c)건조된 캐리어를 가열시킴을 특징으로 하여, 일산화탄소 및 탄화수소를 연소시키고 질소 산화물을 환원시키기 위한 배기 가스 촉매를 제조하는 방법.
  8. 제7항에 있어서, 캐리어를 하나 이상의 산소 촉진제에 함침시키는 단계를 추가로 포함하는 방법.
  9. 제7항에 있어서, 가열 단계를 약100내지 약900℃의 온도에서 수행하는방법.
  10. 제7항에 있어서, 건조 및 가열 단계를 동시에 수행하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930016762A 1992-08-28 1993-08-27 내연기관 및 정지 공급기관으로부터의 배기가스를 처리하기 위한 촉매 KR100224522B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US93753392A 1992-08-28 1992-08-28
US7/937,533 1992-08-28

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KR940003609A true KR940003609A (ko) 1994-03-12
KR100224522B1 KR100224522B1 (ko) 1999-10-15

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EP (1) EP0584887B1 (ko)
JP (1) JP2767368B2 (ko)
KR (1) KR100224522B1 (ko)
CN (1) CN1090216A (ko)
AT (1) ATE185287T1 (ko)
AU (1) AU665852B2 (ko)
CA (1) CA2105038C (ko)
DE (1) DE69326659T2 (ko)
DK (1) DK0584887T3 (ko)
GR (1) GR3031994T3 (ko)
MX (1) MX9305229A (ko)

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KR100429825B1 (ko) * 1996-12-31 2004-06-16 삼성전기주식회사 자동차배기가스정화용촉매및그제조방법

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JP4504502B2 (ja) * 2000-03-24 2010-07-14 日本碍子株式会社 透明ハニカム構造体の製造方法
CN1095389C (zh) * 2000-08-04 2002-12-04 中山大学 处理氮氧化物/一氧化碳混合气体的方法
DE10048844A1 (de) * 2000-10-02 2002-04-11 Basf Ag Verfahren zur Herstellung von Platinmetall-Katalysatoren
DE10132441A1 (de) * 2001-07-04 2003-01-23 Studiengesellschaft Kohle Mbh Mischoxid-Katalysatoren und ihre Verwendung zur katalytischen Verbrennung
US7220390B2 (en) 2003-05-16 2007-05-22 Velocys, Inc. Microchannel with internal fin support for catalyst or sorption medium
EP1965918A1 (en) * 2005-12-16 2008-09-10 Shell Internationale Research Maatschappij B.V. Process for preparing a hydrocarbon synthesis catalyst
JP5004925B2 (ja) * 2008-10-29 2012-08-22 三菱自動車工業株式会社 排気浄化触媒
US10422036B2 (en) 2015-10-23 2019-09-24 GM Global Technology Operations LLC Suppressing aging of platinum group metal particles in a catalytic converter
CN108367284A (zh) * 2015-11-27 2018-08-03 优美科股份公司及两合公司 制备用于氮氧化物的选择性催化还原的整体式催化剂的方法
KR20180088864A (ko) * 2015-11-27 2018-08-07 우미코레 아게 운트 코 카게 질소 산화물의 선택적 촉매 환원을 위한 모노리스 촉매의 제조방법
CN114950422B (zh) * 2022-06-29 2024-03-19 潍柴动力股份有限公司 一种甲烷氧化催化剂及其制备方法和应用
CN117646896B (zh) * 2024-01-29 2024-04-12 东北大学 一种污染物催化还原自换热装置、换热陶瓷球及燃烧器

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100429825B1 (ko) * 1996-12-31 2004-06-16 삼성전기주식회사 자동차배기가스정화용촉매및그제조방법

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CA2105038A1 (en) 1994-03-01
ATE185287T1 (de) 1999-10-15
GR3031994T3 (en) 2000-03-31
JP2767368B2 (ja) 1998-06-18
DE69326659D1 (de) 1999-11-11
DE69326659T2 (de) 2000-05-18
KR100224522B1 (ko) 1999-10-15
AU665852B2 (en) 1996-01-18
EP0584887B1 (en) 1999-10-06
JPH06198179A (ja) 1994-07-19
EP0584887A2 (en) 1994-03-02
MX9305229A (es) 1994-05-31
AU4493293A (en) 1994-03-03
CN1090216A (zh) 1994-08-03
DK0584887T3 (da) 1999-12-27
CA2105038C (en) 1998-11-03
EP0584887A3 (en) 1994-09-14

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