KR100384015B1 - 질소산화물 제거능 및 내열성이 우수한 팔라듐 삼원촉매의제조방법 - Google Patents
질소산화물 제거능 및 내열성이 우수한 팔라듐 삼원촉매의제조방법 Download PDFInfo
- Publication number
- KR100384015B1 KR100384015B1 KR10-2000-0072729A KR20000072729A KR100384015B1 KR 100384015 B1 KR100384015 B1 KR 100384015B1 KR 20000072729 A KR20000072729 A KR 20000072729A KR 100384015 B1 KR100384015 B1 KR 100384015B1
- Authority
- KR
- South Korea
- Prior art keywords
- oxide
- catalyst
- palladium
- heat resistance
- cerium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 40
- 238000006243 chemical reaction Methods 0.000 title description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims abstract description 69
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract description 55
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 17
- 229910000420 cerium oxide Inorganic materials 0.000 claims abstract description 12
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- RCFVMJKOEJFGTM-UHFFFAOYSA-N cerium zirconium Chemical compound [Zr].[Ce] RCFVMJKOEJFGTM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002131 composite material Substances 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 10
- BOWRJOSABXTXBI-UHFFFAOYSA-N dioxopraseodymium Chemical compound O=[Pr]=O BOWRJOSABXTXBI-UHFFFAOYSA-N 0.000 abstract description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- 239000010948 rhodium Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 7
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 6
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 229910052703 rhodium Inorganic materials 0.000 description 6
- 238000000746 purification Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- -1 and conventionally Substances 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000006255 coating slurry Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
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
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/63—Platinum group metals with rare earths or actinides
-
- 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
- B01J37/02—Impregnation, coating or precipitation
- B01J37/024—Multiple impregnation or coating
-
- 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
- B01J37/16—Reducing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
Claims (1)
- 팔라듐 용액을 알루미나에 함침하고 환원 후 산화세륨과 반응시키고, 산화프라세오다이미윰을 사용하여 촉매 슬러리를 얻고, 상기 촉매 슬러리를 세라믹모노리스 담체에 코팅하여 팔라듐 삼원촉매를 제조하는 방법에 있어서,상기 환원 후 산화세륨 및 세륨-지르코늄 복합산화물을 15 : 85 ∼ 30 : 70 의 비율로 혼합하여 전체 담체 겉보기 부피에 대하여 30 ∼ 40 g/ℓ로 첨가하고, 여기에 산화프라세오디미움을 전체 담체 겉보기 부피에 대하여 5 ∼ 7 g/ℓ로 첨가하는 것을 특징으로 하는 질소산화물 제거능 및 내열성이 우수한 팔라듐 삼원촉매의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0072729A KR100384015B1 (ko) | 2000-12-02 | 2000-12-02 | 질소산화물 제거능 및 내열성이 우수한 팔라듐 삼원촉매의제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0072729A KR100384015B1 (ko) | 2000-12-02 | 2000-12-02 | 질소산화물 제거능 및 내열성이 우수한 팔라듐 삼원촉매의제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020043677A KR20020043677A (ko) | 2002-06-12 |
KR100384015B1 true KR100384015B1 (ko) | 2003-05-14 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2000-0072729A Expired - Fee Related KR100384015B1 (ko) | 2000-12-02 | 2000-12-02 | 질소산화물 제거능 및 내열성이 우수한 팔라듐 삼원촉매의제조방법 |
Country Status (1)
Country | Link |
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KR (1) | KR100384015B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5996538B2 (ja) * | 2010-09-02 | 2016-09-21 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | 改善されたno酸化活性度を有するリーン燃焼ガソリンエンジン用の触媒 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4504598A (en) * | 1983-05-12 | 1985-03-12 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Process for producing honeycomb catalyst for exhaust gas conversion |
JPS6054730A (ja) * | 1983-09-02 | 1985-03-29 | Nissan Motor Co Ltd | 排ガス浄化用触媒 |
JPS6178439A (ja) * | 1984-09-26 | 1986-04-22 | Kiyataraa Kogyo Kk | 排ガス浄化用触媒 |
JPH0214744A (ja) * | 1988-07-01 | 1990-01-18 | Nippon Shokubai Kagaku Kogyo Co Ltd | 排ガス浄化用触媒 |
US5248650A (en) * | 1992-01-10 | 1993-09-28 | Nissan Motor Co., Ltd. | Catalysts for the purification of exhaust gas |
KR0136893B1 (ko) * | 1994-11-03 | 1998-04-25 | 강박광 | 선택적 촉매환원에 의한 배기가스중의 질소산화물의 제거방법 |
KR19980081167A (ko) * | 1997-04-09 | 1998-11-25 | 메르크볼프강 | 배기 가스 촉매 |
-
2000
- 2000-12-02 KR KR10-2000-0072729A patent/KR100384015B1/ko not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4504598A (en) * | 1983-05-12 | 1985-03-12 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Process for producing honeycomb catalyst for exhaust gas conversion |
JPS6054730A (ja) * | 1983-09-02 | 1985-03-29 | Nissan Motor Co Ltd | 排ガス浄化用触媒 |
JPS6178439A (ja) * | 1984-09-26 | 1986-04-22 | Kiyataraa Kogyo Kk | 排ガス浄化用触媒 |
JPH0214744A (ja) * | 1988-07-01 | 1990-01-18 | Nippon Shokubai Kagaku Kogyo Co Ltd | 排ガス浄化用触媒 |
US5248650A (en) * | 1992-01-10 | 1993-09-28 | Nissan Motor Co., Ltd. | Catalysts for the purification of exhaust gas |
KR0136893B1 (ko) * | 1994-11-03 | 1998-04-25 | 강박광 | 선택적 촉매환원에 의한 배기가스중의 질소산화물의 제거방법 |
KR19980081167A (ko) * | 1997-04-09 | 1998-11-25 | 메르크볼프강 | 배기 가스 촉매 |
Also Published As
Publication number | Publication date |
---|---|
KR20020043677A (ko) | 2002-06-12 |
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