KR920007684A - 배기가스 정화용 촉매 및 이것을 사용한 배기가스 정화방법 - Google Patents

배기가스 정화용 촉매 및 이것을 사용한 배기가스 정화방법 Download PDF

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Publication number
KR920007684A
KR920007684A KR1019910019134A KR910019134A KR920007684A KR 920007684 A KR920007684 A KR 920007684A KR 1019910019134 A KR1019910019134 A KR 1019910019134A KR 910019134 A KR910019134 A KR 910019134A KR 920007684 A KR920007684 A KR 920007684A
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KR
South Korea
Prior art keywords
exhaust gas
gas purification
catalyst
zeolite
gallium
Prior art date
Application number
KR1019910019134A
Other languages
English (en)
Inventor
도시아끼 하야사까
다꾸마 기무라
Original Assignee
이데미쓰 아끼스께
이데미쓰 고오산 가부시기가이샤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP15414091A external-priority patent/JP3242946B2/ja
Priority claimed from JP16924291A external-priority patent/JP3366342B2/ja
Application filed by 이데미쓰 아끼스께, 이데미쓰 고오산 가부시기가이샤 filed Critical 이데미쓰 아끼스께
Publication of KR920007684A publication Critical patent/KR920007684A/ko

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Classifications

    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16—Alumino-silicates
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/87—Gallosilicates; Aluminogallosilicates; Galloborosilicates
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
    • 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

Abstract

내용 없음

Description

배기가스 정화용 촉매 및 이것을 사용한 배기가스 정화방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 실시예3에서 사용된 촉매의 수명을 측정한 그래프.

Claims (5)

  1. 배기가스 중의 질소 산화물을 산화 분위기 중에서 환원 제거하는 촉매로서 갈륨과 제올라이트를 함유함을 특징으로 하는 배기가스 정화용 촉매.
  2. 배기가스중의 질소 산화물을 산화 분위기 중에서 탄화 수소 존재하에 환원 제거하는촉매로서, (1)갈륨, (2)전이 금속중에서 철, 니켈, 코발트, 지르코늄, 망간, 크롬, 몰리브덴, 구리, 세륨, 티탄, 니오브, 희토류 원소로 부터 선택된 적어도 한가지 이상의 성분 및 (3)제올라이트를 함유함을 특징으로 하는 배기가스 정화용 촉매.
  3. 배기가스 중의 질소 화합물을 산화 분위기 중에서 탄화 수소 존재하에 환원 제거하는 촉매로서, (1)갈륨, (2)알칼리 금속원소와 알칼리 토류 금속원소 중 적어도 한가지 이상의 성분 및 (3)제올라이트를 함유함을 특징으로 하는 배기가스 정화용 촉매.
  4. 산화 분위기 중에서 탄화 수소 존재하에 배기가스를 갈륨과 제올라이트를 함유하는 촉매와 접촉시켜 배기가스 중의 질소 산화물을 환원 제거함을 특징으로 한 배기가스 정화방법.
  5. 제4항에 있어서, 반응온도 200~800℃에서 전 THC농도/NOx농도 0.5~50인 탄화 수소 존재하에 배기가스중의 질소 산화물을 환원 제거함을 특징으로 하는 배기가스 정화방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.
KR1019910019134A 1990-10-31 1991-10-30 배기가스 정화용 촉매 및 이것을 사용한 배기가스 정화방법 KR920007684A (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP90-296242 1990-10-31
JP29624290 1990-10-31
JP15414091A JP3242946B2 (ja) 1991-05-28 1991-05-28 排ガス浄化用触媒及びこれを使用した排ガスの浄化方法
JP91-154140 1991-05-28
JP16924291A JP3366342B2 (ja) 1991-06-14 1991-06-14 排ガス浄化用触媒及びこれを使用した排ガスの浄化方法
JP91-169242 1991-06-14

Publications (1)

Publication Number Publication Date
KR920007684A true KR920007684A (ko) 1992-05-27

Family

ID=27320609

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910019134A KR920007684A (ko) 1990-10-31 1991-10-30 배기가스 정화용 촉매 및 이것을 사용한 배기가스 정화방법

Country Status (5)

Country Link
US (2) US5238890A (ko)
EP (1) EP0483715B1 (ko)
KR (1) KR920007684A (ko)
CA (1) CA2054321A1 (ko)
DE (1) DE69124063T2 (ko)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990030255A (ko) * 1997-09-30 1999-04-26 도미나가 가즈토 철-함유 결정성 알루미노실리케이트

Also Published As

Publication number Publication date
EP0483715B1 (en) 1997-01-08
US5312608A (en) 1994-05-17
US5238890A (en) 1993-08-24
EP0483715A1 (en) 1992-05-06
DE69124063T2 (de) 1997-05-22
CA2054321A1 (en) 1992-05-01
DE69124063D1 (de) 1997-02-20

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