GR3029936T3 - Catalyst and catalytic method for reducing nitrogen oxides. - Google Patents
Catalyst and catalytic method for reducing nitrogen oxides.Info
- Publication number
- GR3029936T3 GR3029936T3 GR990401025T GR990401025T GR3029936T3 GR 3029936 T3 GR3029936 T3 GR 3029936T3 GR 990401025 T GR990401025 T GR 990401025T GR 990401025 T GR990401025 T GR 990401025T GR 3029936 T3 GR3029936 T3 GR 3029936T3
- Authority
- GR
- Greece
- Prior art keywords
- catalyst
- nitrogen oxides
- reducing nitrogen
- catalytic method
- catalytic
- 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
- 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
- B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
- B01J29/42—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively containing iron group metals, noble metals or copper
- B01J29/44—Noble metals
-
- 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
- B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
-
- 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
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
- B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/208—Hydrocarbons
-
- 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
- B01D2255/1023—Palladium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20746—Cobalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/50—Zeolites
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9308006A FR2707075B1 (fr) | 1993-06-30 | 1993-06-30 | Catalyseur de réduction des NOx et procédé catalytique de réduction des NOx. |
PCT/FR1994/000792 WO1995001222A1 (fr) | 1993-06-30 | 1994-06-29 | CATALYSEUR DE REDUCTION DES NOx ET PROCEDE CATALYTIQUE DE REDUCTION DES NO¿x? |
Publications (1)
Publication Number | Publication Date |
---|---|
GR3029936T3 true GR3029936T3 (en) | 1999-07-30 |
Family
ID=9448752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GR990401025T GR3029936T3 (en) | 1993-06-30 | 1999-04-08 | Catalyst and catalytic method for reducing nitrogen oxides. |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0656810B1 (el) |
JP (1) | JPH08500772A (el) |
AT (1) | ATE175591T1 (el) |
CA (1) | CA2142889A1 (el) |
DE (1) | DE69415950T2 (el) |
DK (1) | DK0656810T3 (el) |
ES (1) | ES2129131T3 (el) |
FR (1) | FR2707075B1 (el) |
GR (1) | GR3029936T3 (el) |
WO (1) | WO1995001222A1 (el) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5874646A (en) * | 1996-08-07 | 1999-02-23 | Solutia Inc. | Preparation of phenol or phenol derivatives |
GB201504986D0 (en) * | 2015-02-13 | 2015-05-06 | Johnson Matthey Plc | Oxidation catalyst for treating a natural gas emission |
WO2018011552A1 (en) * | 2016-07-12 | 2018-01-18 | Johnson Matthey Public Limited Company | Oxidation catalyst for a stoichiometric natural gas engine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4176050A (en) * | 1978-12-04 | 1979-11-27 | Mobil Oil Corporation | Production of high V.I. lubricating oil stock |
US4232181A (en) * | 1979-06-28 | 1980-11-04 | Norton Company | Hydroisomerization of pentane utilizing Pd exchanged mordenite |
FR2619319B1 (fr) * | 1987-08-14 | 1990-01-12 | Inst Francais Du Petrole | Catalyseur du type aluminosilicate renfermant au moins un metal noble et son utilisation en isomerisation d'une coupe c8 aromatique |
DE3917890A1 (de) * | 1989-06-01 | 1990-12-06 | Steinbach Friedrich | Traegergestuetzte katalysatoren zum entfernen von stickoxiden, kohlenmonoxid und organischen verbindungen aus abgasen |
US5171553A (en) * | 1991-11-08 | 1992-12-15 | Air Products And Chemicals, Inc. | Catalytic decomposition of N2 O |
-
1993
- 1993-06-30 FR FR9308006A patent/FR2707075B1/fr not_active Expired - Lifetime
-
1994
- 1994-06-29 WO PCT/FR1994/000792 patent/WO1995001222A1/fr active IP Right Grant
- 1994-06-29 DE DE69415950T patent/DE69415950T2/de not_active Expired - Fee Related
- 1994-06-29 AT AT94920994T patent/ATE175591T1/de not_active IP Right Cessation
- 1994-06-29 EP EP94920994A patent/EP0656810B1/fr not_active Expired - Lifetime
- 1994-06-29 DK DK94920994T patent/DK0656810T3/da active
- 1994-06-29 ES ES94920994T patent/ES2129131T3/es not_active Expired - Lifetime
- 1994-06-29 JP JP7503316A patent/JPH08500772A/ja active Pending
- 1994-06-29 CA CA002142889A patent/CA2142889A1/en not_active Abandoned
-
1999
- 1999-04-08 GR GR990401025T patent/GR3029936T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
ES2129131T3 (es) | 1999-06-01 |
WO1995001222A1 (fr) | 1995-01-12 |
FR2707075A1 (fr) | 1995-01-06 |
DE69415950D1 (de) | 1999-02-25 |
EP0656810B1 (fr) | 1999-01-13 |
CA2142889A1 (en) | 1995-01-12 |
ATE175591T1 (de) | 1999-01-15 |
DK0656810T3 (da) | 1999-09-06 |
JPH08500772A (ja) | 1996-01-30 |
DE69415950T2 (de) | 1999-08-26 |
EP0656810A1 (fr) | 1995-06-14 |
FR2707075B1 (fr) | 1995-09-22 |
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