KR960021148A - 질소산화물(NO_x) 정화용 촉매의 제조방법 - Google Patents
질소산화물(NO_x) 정화용 촉매의 제조방법 Download PDFInfo
- Publication number
- KR960021148A KR960021148A KR1019940036668A KR19940036668A KR960021148A KR 960021148 A KR960021148 A KR 960021148A KR 1019940036668 A KR1019940036668 A KR 1019940036668A KR 19940036668 A KR19940036668 A KR 19940036668A KR 960021148 A KR960021148 A KR 960021148A
- Authority
- KR
- South Korea
- Prior art keywords
- catalyst
- nitrogen oxides
- preparing
- purifying nitrogen
- purifying
- Prior art date
Links
Classifications
-
- 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)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
본 발명은 질소산화물(NOx)정화용 촉매의 제조방법에 관한 것으로, 좀더 상세하게는 제올라이트에 Rh와 Pt를 동시에 이온교환시키는 것으로 이루어지므로써 촉매활성과 열적 내구성을 향상시킬 수 있는 NOx정화용 촉매의 제조방법에 관한 것이다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 온도변화에 따른 촉매 정화율의 변화를 나타낸 그래프,
제2도는 열적 내구성 측정 전, 후의 촉매 정화율 변화를 나타낸 그래프.
Claims (3)
- 제올라이트에 Rh와 Pt를 동시에 이온교환시키는 것으로 이루어지는 것을 특징으로 하는 질소산화물(NOx)정화용 촉매의 제조방법.
- 제1항에 있어서, 상기 Rh와 Pt의 이온교환량은 제올라이트에 대해 각각 0.31~1.5wt.% 및 0.31.5wt.%인 것을 특징으로 하는 질소산화물(NOx)정화용 촉매의 제조방법.
- 제1항 또는 제2항에 있어서, 상기 이온교환된 귀금속 성분의 소결현상을 방지할 수 있도록 Ca를 전체 분말성분에 대해 0.5~3wt.%첨가하는 것을 특징으로 하는 질소산화물(NOx) 정화용 촉매의 제조방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940036668A KR100321471B1 (ko) | 1994-12-24 | 1994-12-24 | 질소산화물(NOx)정화용촉매의제조방법 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940036668A KR100321471B1 (ko) | 1994-12-24 | 1994-12-24 | 질소산화물(NOx)정화용촉매의제조방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR960021148A true KR960021148A (ko) | 1996-07-18 |
| KR100321471B1 KR100321471B1 (ko) | 2002-07-31 |
Family
ID=37460573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019940036668A KR100321471B1 (ko) | 1994-12-24 | 1994-12-24 | 질소산화물(NOx)정화용촉매의제조방법 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100321471B1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR980000574A (ko) * | 1996-06-17 | 1998-03-30 | 김영귀 | 질소산화물 정화용 촉매제조방법 |
-
1994
- 1994-12-24 KR KR1019940036668A patent/KR100321471B1/ko not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR980000574A (ko) * | 1996-06-17 | 1998-03-30 | 김영귀 | 질소산화물 정화용 촉매제조방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100321471B1 (ko) | 2002-07-31 |
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