KR960010077A - 질소산화물(NOx) 정화용 촉매의 제조방법 - Google Patents

질소산화물(NOx) 정화용 촉매의 제조방법 Download PDF

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Publication number
KR960010077A
KR960010077A KR1019940025201A KR19940025201A KR960010077A KR 960010077 A KR960010077 A KR 960010077A KR 1019940025201 A KR1019940025201 A KR 1019940025201A KR 19940025201 A KR19940025201 A KR 19940025201A KR 960010077 A KR960010077 A KR 960010077A
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South Korea
Prior art keywords
catalyst
nox
preparing
nitrogen oxides
purifying nitrogen
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KR1019940025201A
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English (en)
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KR100321470B1 (ko
Inventor
박상철
송경화
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이형도
삼성전기 주식회사
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Priority to KR1019940025201A priority Critical patent/KR100321470B1/ko
Publication of KR960010077A publication Critical patent/KR960010077A/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
    • B01J29/18—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
    • 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)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)

Abstract

본 발명은 질소산화물(NOx) 정화용 촉매의 제조방법에 관한 것으로, 좀 더 상세하게는 Rh를 제올라이트에 이온교환시키고 Rh가 산화되지 않도록 CeO2를 첨가하므로써 촉매의 활성 및 내구성을 향상시킬 수 있는 질소산화물(NOx) 정화용 촉매의 제조방법에 관한 것이다.

Description

질소산화물(NOx) 정화용 촉매의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 Ru를 이온교환시킨 촉매의 촉매정화율 특성을 나타낸 도면이고,
제2도는 CeO2를 Ru-제올라이트에 첨가하여 제조한 촉매의 촉매정화율을 나타낸 도면이다.

Claims (2)

  1. 제올라이트에 Ru를 이온교환시키고 Ru가 산화되지 않도록 CeO2를 첨가하는 것으로 이루어지는 것을 특징으로 하는 질소산화물(NOx) 정화용 촉매의 제조방법
  2. 제1항에 있어서, 상기 CeO2의 첨가량이 이온교환된 Ru의 5∼25wt.%인 것을 특징으로 하는 질소산화물(NOx) 정화용 촉매의 제조방법
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940025201A 1994-09-30 1994-09-30 질소산화물(NOx)정화용촉매의제조방법 KR100321470B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940025201A KR100321470B1 (ko) 1994-09-30 1994-09-30 질소산화물(NOx)정화용촉매의제조방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940025201A KR100321470B1 (ko) 1994-09-30 1994-09-30 질소산화물(NOx)정화용촉매의제조방법

Publications (2)

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KR960010077A true KR960010077A (ko) 1996-04-20
KR100321470B1 KR100321470B1 (ko) 2002-06-22

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KR1019940025201A KR100321470B1 (ko) 1994-09-30 1994-09-30 질소산화물(NOx)정화용촉매의제조방법

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019529069A (ja) 2016-07-29 2019-10-17 ビーエーエスエフ コーポレーション ルテニウム含浸セリア触媒

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