WO2003057365A1 - Procede de reduction catalytique d'oxydes d'azote et catalyseur utilise - Google Patents
Procede de reduction catalytique d'oxydes d'azote et catalyseur utilise Download PDFInfo
- Publication number
- WO2003057365A1 WO2003057365A1 PCT/JP2002/013718 JP0213718W WO03057365A1 WO 2003057365 A1 WO2003057365 A1 WO 2003057365A1 JP 0213718 W JP0213718 W JP 0213718W WO 03057365 A1 WO03057365 A1 WO 03057365A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oxides
- catalytic reduction
- adsorbent
- nitrogen oxides
- rhodium
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 abstract 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract 3
- 239000002250 absorbent Substances 0.000 abstract 2
- 230000002745 absorbent Effects 0.000 abstract 2
- 239000003463 adsorbent Substances 0.000 abstract 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
- 229910052684 Cerium Inorganic materials 0.000 abstract 1
- 229910052688 Gadolinium Inorganic materials 0.000 abstract 1
- 229910052779 Neodymium Inorganic materials 0.000 abstract 1
- 229910052777 Praseodymium Inorganic materials 0.000 abstract 1
- 229910052772 Samarium Inorganic materials 0.000 abstract 1
- 229910052771 Terbium Inorganic materials 0.000 abstract 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 1
- 150000001339 alkali metal compounds Chemical group 0.000 abstract 1
- 150000001341 alkaline earth metal compounds Chemical class 0.000 abstract 1
- 238000010531 catalytic reduction reaction Methods 0.000 abstract 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 abstract 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 229910052746 lanthanum Inorganic materials 0.000 abstract 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 abstract 1
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical class [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 abstract 1
- SJLOMQIUPFZJAN-UHFFFAOYSA-N oxorhodium Chemical class [Rh]=O SJLOMQIUPFZJAN-UHFFFAOYSA-N 0.000 abstract 1
- MMKQUGHLEMYQSG-UHFFFAOYSA-N oxygen(2-);praseodymium(3+) Chemical compound [O-2].[O-2].[O-2].[Pr+3].[Pr+3] MMKQUGHLEMYQSG-UHFFFAOYSA-N 0.000 abstract 1
- 229910003445 palladium oxide Inorganic materials 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- 229910003446 platinum oxide Inorganic materials 0.000 abstract 1
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 abstract 1
- 229910003447 praseodymium oxide Inorganic materials 0.000 abstract 1
- 229910052703 rhodium Inorganic materials 0.000 abstract 1
- 239000010948 rhodium Substances 0.000 abstract 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 abstract 1
- 229910003450 rhodium oxide Inorganic materials 0.000 abstract 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
- B01D53/9422—Processes characterised by a specific catalyst for removing nitrogen oxides by NOx storage or reduction by cyclic switching between lean and rich exhaust gases (LNT, NSC, NSR)
-
- 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
- B01J37/0244—Coatings comprising several layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1021—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1025—Rhodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/202—Alkali metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/204—Alkaline earth metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/206—Rare earth metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/40—Mixed oxides
- B01D2255/402—Perovskites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/902—Multilayered catalyst
- B01D2255/9022—Two layers
-
- 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
- B01J23/58—Platinum group metals with alkali- or alkaline earth metals
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2002359924A AU2002359924A1 (en) | 2001-12-28 | 2002-12-26 | Process for catalytic reduction of nitrogen oxides and catalyst therefor |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001401946 | 2001-12-28 | ||
| JP2001-401946 | 2001-12-28 | ||
| JP2002030173 | 2002-02-06 | ||
| JP2002-030173 | 2002-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003057365A1 true WO2003057365A1 (fr) | 2003-07-17 |
Family
ID=26625421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2002/013718 WO2003057365A1 (fr) | 2001-12-28 | 2002-12-26 | Procede de reduction catalytique d'oxydes d'azote et catalyseur utilise |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU2002359924A1 (ja) |
| WO (1) | WO2003057365A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023276793A1 (ja) * | 2021-06-28 | 2023-01-05 | エヌ・イーケムキャット株式会社 | 排ガス浄化用酸化触媒 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5849660A (en) * | 1995-02-24 | 1998-12-15 | Mazda Motor Corporation | Catalyst for purifying exhaust gas |
| JPH1170332A (ja) * | 1997-06-20 | 1999-03-16 | Degussa Ag | 内燃機関用排気ガス浄化触媒およびその製造方法 |
| US6090744A (en) * | 1996-03-28 | 2000-07-18 | Mazda Motor Corporation | Catalyst for cleaning exhaust gas |
| US6143691A (en) * | 1995-12-27 | 2000-11-07 | Ict Co., Ltd | Purifying catalyst for exhaust gas from internal combustion engine |
-
2002
- 2002-12-26 WO PCT/JP2002/013718 patent/WO2003057365A1/ja active Application Filing
- 2002-12-26 AU AU2002359924A patent/AU2002359924A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5849660A (en) * | 1995-02-24 | 1998-12-15 | Mazda Motor Corporation | Catalyst for purifying exhaust gas |
| US6143691A (en) * | 1995-12-27 | 2000-11-07 | Ict Co., Ltd | Purifying catalyst for exhaust gas from internal combustion engine |
| US6090744A (en) * | 1996-03-28 | 2000-07-18 | Mazda Motor Corporation | Catalyst for cleaning exhaust gas |
| JPH1170332A (ja) * | 1997-06-20 | 1999-03-16 | Degussa Ag | 内燃機関用排気ガス浄化触媒およびその製造方法 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023276793A1 (ja) * | 2021-06-28 | 2023-01-05 | エヌ・イーケムキャット株式会社 | 排ガス浄化用酸化触媒 |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2002359924A1 (en) | 2003-07-24 |
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