KR960033547A - 질소산화물(NO_x) 정화용 촉매의 제조방법 - Google Patents

질소산화물(NO_x) 정화용 촉매의 제조방법 Download PDF

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Publication number
KR960033547A
KR960033547A KR1019950007558A KR19950007558A KR960033547A KR 960033547 A KR960033547 A KR 960033547A KR 1019950007558 A KR1019950007558 A KR 1019950007558A KR 19950007558 A KR19950007558 A KR 19950007558A KR 960033547 A KR960033547 A KR 960033547A
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KR
South Korea
Prior art keywords
catalyst
nitrogen oxides
purifying nitrogen
preparing
zeolite
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Application number
KR1019950007558A
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English (en)
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KR100349451B1 (ko
Inventor
송경화
박상철
Original Assignee
이형도
삼성전기 주식회사
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Application filed by 이형도, 삼성전기 주식회사 filed Critical 이형도
Priority to KR1019950007558A priority Critical patent/KR100349451B1/ko
Publication of KR960033547A publication Critical patent/KR960033547A/ko
Application granted granted Critical
Publication of KR100349451B1 publication Critical patent/KR100349451B1/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(NO) 정화용 촉매의 제조방법에 관한 것으로, 좀 더 상세하게는 Ca를 제올라이트에 이온교환시킨 다음, 상기 Ca-제올라이트 Pt, Pd, Ir 및 Rh로 이루어진 군으로부터 선택된 하나 또는 그 이상의 귀금속성분을 첨가시켜 질소산화물(No) 정화용 촉매를 제조하는 관한 것이다.

Description

질소산화물(No) 정화용 촉매의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 종래의 Cu-제울라이트 촉매 및 상기 촉매의 내구성 실험후의 온도에 따른 촉매정화율의 변화를 나타낸 그래프이고,
제2도는 종래의 Pd-제울라이트 촉매 및 상기 촉매의 내구성 실험후의 온도에 따른 촉매정화율과 본 발명에 따른 Ca 및 Pd-제올라이트 촉매 및 상기 촉매의 내구성 실험후의 온도에 따른 촉매정화율의 변화를 나타낸 그래프이다.

Claims (3)

  1. Ca를 제올라이트 이온교환시킨 다음, 상기 Ca-제올라이트에 Pt, Pd, Ir 및 Rh로 이루어진 군으로부터 선택된 하나 또는 그 이상의 귀금속성분을 첨가시키는 것을 특징으로 하는 질소산화물(Nox) 정화용 촉매의 제조방법.
  2. 제1항에 있어서, 상기 Ca의 이온교환량이 제올라이트에 대해 0.5~4.5중량%임을 특징으로 하는 질소산화물(Nox) 정화용 촉매의 제조방법.
  3. 제1항에 있어서, 상기 귀금속성분의 첨가량이 상기 Ca-제올라이트에 대해 0.5~3.5중량%임을 특징으로 하는 질소산화물(Nox) 정화용 촉매의 제조방법.
    ※ 참고상항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950007558A 1995-03-31 1995-03-31 질소산화물(NOx)정화용촉매의제조방법 KR100349451B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950007558A KR100349451B1 (ko) 1995-03-31 1995-03-31 질소산화물(NOx)정화용촉매의제조방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950007558A KR100349451B1 (ko) 1995-03-31 1995-03-31 질소산화물(NOx)정화용촉매의제조방법

Publications (2)

Publication Number Publication Date
KR960033547A true KR960033547A (ko) 1996-10-22
KR100349451B1 KR100349451B1 (ko) 2002-12-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950007558A KR100349451B1 (ko) 1995-03-31 1995-03-31 질소산화물(NOx)정화용촉매의제조방법

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KR (1) KR100349451B1 (ko)

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KR100349451B1 (ko) 2002-12-18

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