KR970069126A - 디젤 엔진으로부터 방출되는 배기 가스 정제용 촉매 - Google Patents

디젤 엔진으로부터 방출되는 배기 가스 정제용 촉매 Download PDF

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KR970069126A
KR970069126A KR1019970013346A KR19970013346A KR970069126A KR 970069126 A KR970069126 A KR 970069126A KR 1019970013346 A KR1019970013346 A KR 1019970013346A KR 19970013346 A KR19970013346 A KR 19970013346A KR 970069126 A KR970069126 A KR 970069126A
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catalyst
zeolite
aluminum
modulus
platinum group
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KR100485203B1 (ko
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위르겐 라이러
디터 린트너
에크베르크 록스
토마스 크로이쩌
빌프리트 뮐러
라이너 도메슬레
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메르크 볼프강, 헤르만 라인하르트
데구사 아크티엔게젤샤프트
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    • 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
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/80—Mixtures of different zeolites
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
    • B01J29/10—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y containing iron group metals, noble metals or copper
    • B01J29/12—Noble metals
    • B01J29/126—Y-type faujasite
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    • 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
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
    • B01J29/20—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type containing iron group metals, noble metals or copper
    • B01J29/22—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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
    • B01J29/42—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively containing iron group metals, noble metals or copper
    • B01J29/44—Noble metals
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
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    • B01J2229/16—After treatment, characterised by the effect to be obtained to increase the Si/Al ratio; Dealumination
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    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
    • B01J29/084—Y-type faujasite
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    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
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Abstract

본 발명은 디젤 엔진으로부터 방출되는 배기가스를 정제하기 위한 촉매에 관한 것이다. 촉매는 알루미늄 실리케이트, 산화알루미늄 및 산화티탄으로 이루어진 그룹으로부터 선택된 추가의 금속 산화물 뿐만 아니라, 모듈러스가 상이한 수개의 제올라이트의 제올라이트 혼합물 및 백금족 금속(여기서, 알루미늄 실리케이트는 이산화규소 대 산화알루미늄의 비가 0.005 대 1이고, 백금족 금속은 단지 추가의 금속 산화물 위에만 침착된다)을 함유한다.

Description

디젤 엔진으로부터 방출되는 배기 가스 정제용 촉매
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (9)

  1. 하나 이상의 제올라이트와 하나 이상의 백금족 금속을 함유하며, 알루미늄 실리케이트, 산화알루미늄 및 산화티탄으로 이루어진 그룹으로부터 선택된 하나 이상의 금속 산화물(여기서, 알루미늄 실리케이트는 이산화 규소 대 산화알루미늄의 중량비가 0.005대 1이다)을 추가로 함유하고, 백금족 금속이 단지 이들 추가의 금속 산화물 위에만 침착됨을 특징으로 하는, 디젤 엔진으로부터 방출되는 배기 가스 정제용 촉매.
  2. 제1항에 있어서, 제올라이트 혼합물이 모듈러스가 상이한 5개 이하의 제올라이트로 이루어짐을 특징으로 하는 촉매.
  3. 제2항에 있어서, 모듈러스가 10이상인 두개 이상의 제올라이트의 제올라이트 혼합물을 함유하고, 이중하나는 모듈러스가 50 미만이고, 나머지는 모듈러스가 200 이상임을 특징으로하는 촉매.
  4. 제3항에 있어서, 백금족 금속을 포함하는 추가의 금속 산화물 대 제올라이트 혼합물의 중량비가 10:1 내지 1:3, 바람직하게는 6:1 내지 2:1임을 특징으로 하는 촉매.
  5. 제1항에 있어서, 백금으로 활성화된 알루미늄 실리케이트(여기서, 알루미늄 실리케이트는 비표면적이 100내지 200㎡/g이고, 0.05내지 0.5mgPt/㎡로 피복된다)와 모듈러스가 120이상인 알루미늄 탈착된 Y-제올라이트와 Na-ZSM5 제올라이트와의 제올라이트 혼합물을 함유함을 특징으로 하는 촉매.
  6. 제5항에 있어서, 알루미늄 실리케이트 대 제올라이트 혼합물의 중량비가 6:1내지 2:1의 범위임을 특징으로 하는 촉매.
  7. 제1항 내지 제6항중 어느 한 항에 있어서, 벌집형 캐리어의 내벽 위에 피복물의 형태로 벌집형 캐리어 용적 1ℓ당 50내지 400g의 농도로 도포됨을 특징으로 하는 촉매.
  8. 제1항 내지 제7항중 어느 한 항에 있어서, 백금족 금속이 벌집형 캐리어 용적 1ℓ당 0.01내지 5g의 농도로 존재함을 특징으로 하는 촉매.
  9. 디젤 엔진으로부터 방출되는 배기 가스를 정제하기 위한, 제1항 내지 제8항중 어느 한 항에 따르는 촉매의 용도.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970013346A 1996-04-12 1997-04-11 디젤 엔진으로부터 방출되는 배기 가스 정제용 촉매 KR100485203B1 (ko)

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DE19614540.6 1996-04-12
DE19614540A DE19614540A1 (de) 1996-04-12 1996-04-12 Dieselkatalysator

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US (1) US5928981A (ko)
EP (1) EP0800856B1 (ko)
JP (1) JP3607036B2 (ko)
KR (1) KR100485203B1 (ko)
CN (1) CN1091002C (ko)
AR (1) AR006620A1 (ko)
CA (1) CA2202417C (ko)
DE (2) DE19614540A1 (ko)
ES (1) ES2203731T3 (ko)
IN (1) IN191059B (ko)
TW (1) TW394704B (ko)

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TW394704B (en) 2000-06-21
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CA2202417C (en) 2006-08-15
JP3607036B2 (ja) 2005-01-05
EP0800856B1 (de) 2003-07-30
US5928981A (en) 1999-07-27
KR100485203B1 (ko) 2005-08-17
DE19614540A1 (de) 1997-10-16
CN1162501A (zh) 1997-10-22
IN191059B (ko) 2003-09-13
EP0800856A2 (de) 1997-10-15
EP0800856A3 (de) 1998-11-04
CA2202417A1 (en) 1997-10-12
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