DE69125649D1 - Verfahren zum Entfernen von Stickoxiden aus Abgasen - Google Patents
Verfahren zum Entfernen von Stickoxiden aus AbgasenInfo
- Publication number
- DE69125649D1 DE69125649D1 DE69125649T DE69125649T DE69125649D1 DE 69125649 D1 DE69125649 D1 DE 69125649D1 DE 69125649 T DE69125649 T DE 69125649T DE 69125649 T DE69125649 T DE 69125649T DE 69125649 D1 DE69125649 D1 DE 69125649D1
- Authority
- DE
- Germany
- Prior art keywords
- exhaust gases
- nitrogen oxides
- removing nitrogen
- oxides
- gases
- 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 - Lifetime
Links
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
- B01D53/9418—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
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/208—Hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/21—Organic compounds not provided for in groups B01D2251/206 or B01D2251/208
-
- 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
- B01D2255/2027—Sodium
-
- 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
- B01D2255/20707—Titanium
-
- 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
- B01D2255/20715—Zirconium
-
- 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
- B01D2255/20738—Iron
-
- 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
- B01D2255/20761—Copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/50—Zeolites
- B01D2255/504—ZSM 5 zeolites
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13934090 | 1990-05-28 | ||
JP2204103A JP2595370B2 (ja) | 1990-08-01 | 1990-08-01 | 窒素酸化物含有排ガスの浄化方法 |
JP2204102A JPH0490826A (ja) | 1990-08-01 | 1990-08-01 | 排ガス浄化方法 |
JP2204104A JPH04118030A (ja) | 1990-05-28 | 1990-08-01 | 窒素酸化物の除去方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69125649D1 true DE69125649D1 (de) | 1997-05-22 |
DE69125649T2 DE69125649T2 (de) | 1997-09-04 |
Family
ID=27472218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69125649T Expired - Lifetime DE69125649T2 (de) | 1990-05-28 | 1991-05-28 | Verfahren zum Entfernen von Stickoxiden aus Abgasen |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0459396B1 (de) |
DE (1) | DE69125649T2 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2257696B (en) * | 1991-06-28 | 1995-05-31 | Riken Kk | Method and apparatus for cleaning exhaust gas |
US5534237A (en) * | 1991-07-23 | 1996-07-09 | Kubushiki Kaisha Riken | Method of cleaning an exhaust gas and exhaust gas cleaner therefor |
DE69222488T2 (de) * | 1991-07-23 | 1998-02-05 | Agency Ind Science Techn | Abgasreiniger |
US5260043A (en) * | 1991-08-01 | 1993-11-09 | Air Products And Chemicals, Inc. | Catalytic reduction of NOx and carbon monoxide using methane in the presence of oxygen |
FR2690358B1 (fr) * | 1992-04-25 | 1995-01-13 | Volkswagen Ag | Procédé de réduction des oxydes d'azote dans des gaz d'échappement contenant de l'oxygène . |
DE4226112B4 (de) * | 1992-08-07 | 2006-01-12 | Engelhard Corp. | Verwendung eines Katalysators zur Verringerung der Partikelmenge und/oder -größe im Dieselabgas |
US6248684B1 (en) | 1992-11-19 | 2001-06-19 | Englehard Corporation | Zeolite-containing oxidation catalyst and method of use |
EP0666099B1 (de) * | 1993-04-28 | 2001-07-18 | Nippon Shokubai Co., Ltd. | Methode zur entfernung von in abgas enthaltenen stickstoffoxyden |
DE69427932T2 (de) * | 1993-05-10 | 2002-04-04 | Cosmo Oil Co. Ltd., Tokio/Tokyo | Katalysator zur katalytischen Reduktion von Stickstoffoxiden |
JP3440290B2 (ja) * | 1993-08-26 | 2003-08-25 | 独立行政法人産業技術総合研究所 | 排ガス浄化方法 |
EP0661089B1 (de) * | 1993-12-28 | 1998-03-11 | Kabushiki Kaisha Riken | Vorrichtung und Verfahren zur Reinigung von Abgas |
EP0667182A3 (de) * | 1994-02-10 | 1995-10-18 | Riken Kk | Abgasreiniger und Methode zum Reinigen von Abgas. |
EP0974002B1 (de) | 1997-04-09 | 2002-09-04 | Emitec Gesellschaft für Emissionstechnologie mbH | VERFAHREN ZUR ÜBERWACHUNG EINES NOx-SPEICHERS |
US20020014071A1 (en) * | 1998-10-01 | 2002-02-07 | Mari Lou Balmer | Catalytic plasma reduction of nox |
NO328397B1 (no) | 2007-07-04 | 2010-02-08 | Yara Int Asa | Fremgangsmate til a produsere keramiske katalysatorer. |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3741725A (en) * | 1971-08-12 | 1973-06-26 | J Graham | Catalytic control of auto exhaust emissions |
DE3326639A1 (de) * | 1983-07-23 | 1985-01-31 | Hoechst Ag, 6230 Frankfurt | Verfahren zur verminderung des stickstoffdioxidgehaltes von gasgemischen |
DE3544998C2 (de) * | 1985-12-19 | 1996-08-01 | Krupp Koppers Gmbh | Verfahren zur Minderung des NO¶x¶-Gehaltes von Abgasen |
DE3713169A1 (de) * | 1987-04-17 | 1988-11-03 | Bayer Ag | Verfahren und vorrichtung zur reduktion von stickoxiden |
-
1991
- 1991-05-28 DE DE69125649T patent/DE69125649T2/de not_active Expired - Lifetime
- 1991-05-28 EP EP91108690A patent/EP0459396B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0459396B1 (de) | 1997-04-16 |
EP0459396A1 (de) | 1991-12-04 |
DE69125649T2 (de) | 1997-09-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |