KR960010078A - 질소 산화물(NOx) 정화용 촉매의 제조방법 - Google Patents

질소 산화물(NOx) 정화용 촉매의 제조방법 Download PDF

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Publication number
KR960010078A
KR960010078A KR1019940025208A KR19940025208A KR960010078A KR 960010078 A KR960010078 A KR 960010078A KR 1019940025208 A KR1019940025208 A KR 1019940025208A KR 19940025208 A KR19940025208 A KR 19940025208A KR 960010078 A KR960010078 A KR 960010078A
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KR
South Korea
Prior art keywords
nox
catalyst
purifying nitrogen
nitrogen oxide
zeolite
Prior art date
Application number
KR1019940025208A
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English (en)
Other versions
KR100321472B1 (ko
Inventor
송경화
박상철
Original Assignee
이형도
삼성전기 주식회사
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Publication date
Application filed by 이형도, 삼성전기 주식회사 filed Critical 이형도
Priority to KR1019940025208A priority Critical patent/KR100321472B1/ko
Publication of KR960010078A publication Critical patent/KR960010078A/ko
Application granted granted Critical
Publication of KR100321472B1 publication Critical patent/KR100321472B1/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
    • B01J37/30—Ion-exchange
    • 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
    • B01J29/064—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof containing iron group metals, noble metals or copper
    • B01J29/068—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
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

본 발명은 질소산화물(NOx) 정화용 촉매의 제조방법에 관한 것으로, 좀 더 상세하게는 Rh를 제올라이트에 이온교환시킨 후 Rh-제올라이트에 Sr을 첨가하는 것으로 이루어지므로써 촉매의 활성온도 영역을 넓힐 수 있고 공간속도가 증가됨에 따라 촉매 정화율을 향상시킬 수 있는 NOx 정화용 촉매의 제조방법에 관한 것이다.

Description

질소산화물(NOx) 정화용 촉매의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 온도에 따른 촉매 정화율의 변화를 나타낸 그래프이다.

Claims (2)

  1. Rh를 제올라이트에 이온교환시킨 후 Rh-제올라이트에 Sr을 첨가하는 것으로 이루어지는 것을 특징으로 하는 질소산화물(NOx) 정화용 촉매의 제조방법
  2. 제1항에 있어서, 상기 Rh의 이온교환량은 0.5∼2.5wt.%이고, Sr의 첨가량은 Rh-제올라이트 양의 0.5∼2.5wt.%인 것을 특징으로 하는 질소 산화물(NOx) 정화용 촉매의 제조방법
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940025208A 1994-09-30 1994-09-30 질소산화물(NOx)정화용촉매의제조방법 KR100321472B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940025208A KR100321472B1 (ko) 1994-09-30 1994-09-30 질소산화물(NOx)정화용촉매의제조방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940025208A KR100321472B1 (ko) 1994-09-30 1994-09-30 질소산화물(NOx)정화용촉매의제조방법

Publications (2)

Publication Number Publication Date
KR960010078A true KR960010078A (ko) 1996-04-20
KR100321472B1 KR100321472B1 (ko) 2002-07-31

Family

ID=37460574

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940025208A KR100321472B1 (ko) 1994-09-30 1994-09-30 질소산화물(NOx)정화용촉매의제조방법

Country Status (1)

Country Link
KR (1) KR100321472B1 (ko)

Also Published As

Publication number Publication date
KR100321472B1 (ko) 2002-07-31

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