DE69014503T2 - Katalysator zur Reduzierung von Stickoxyden in Abgasen und Verfahren zu seiner Herstellung. - Google Patents
Katalysator zur Reduzierung von Stickoxyden in Abgasen und Verfahren zu seiner Herstellung.Info
- Publication number
- DE69014503T2 DE69014503T2 DE69014503T DE69014503T DE69014503T2 DE 69014503 T2 DE69014503 T2 DE 69014503T2 DE 69014503 T DE69014503 T DE 69014503T DE 69014503 T DE69014503 T DE 69014503T DE 69014503 T2 DE69014503 T2 DE 69014503T2
- Authority
- DE
- Germany
- Prior art keywords
- catalyst
- scales
- vanadium
- nitrogen oxides
- reducing nitrogen
- 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
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
- B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
- B01J37/349—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of flames, plasmas or lasers
-
- 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
- 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
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
- B01J23/22—Vanadium
-
- 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
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/30—Tungsten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- 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
- B01D2255/20723—Vanadium
-
- 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
- B01D2255/20776—Tungsten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/92—Dimensions
- B01D2255/9202—Linear dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/92—Dimensions
- B01D2255/9207—Specific surface
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8921673A IT1232325B (it) | 1989-09-11 | 1989-09-11 | Catalizzatore per ridurre ossidi di azoto in un gas di combustione e metodi per la sua produzione e impiego |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69014503D1 DE69014503D1 (de) | 1995-01-12 |
DE69014503T2 true DE69014503T2 (de) | 1995-07-13 |
Family
ID=11185187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69014503T Expired - Fee Related DE69014503T2 (de) | 1989-09-11 | 1990-08-28 | Katalysator zur Reduzierung von Stickoxyden in Abgasen und Verfahren zu seiner Herstellung. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0417538B1 (de) |
AT (1) | ATE114501T1 (de) |
DE (1) | DE69014503T2 (de) |
IT (1) | IT1232325B (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1248536B (it) * | 1991-06-24 | 1995-01-19 | Enel Ente Nazionale Per L Ener | Catalizzatore per ridurre ossidi di azoto in un gas di combustione e metodo per la sua produzione. |
US6391494B2 (en) | 1999-05-13 | 2002-05-21 | Nanogram Corporation | Metal vanadium oxide particles |
US6482374B1 (en) | 1999-06-16 | 2002-11-19 | Nanogram Corporation | Methods for producing lithium metal oxide particles |
US6607706B1 (en) | 1998-11-09 | 2003-08-19 | Nanogram Corporation | Composite metal oxide particles |
US6225007B1 (en) | 1999-02-05 | 2001-05-01 | Nanogram Corporation | Medal vanadium oxide particles |
US6099798A (en) | 1997-10-31 | 2000-08-08 | Nanogram Corp. | Ultraviolet light block and photocatalytic materials |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4071601A (en) * | 1973-03-06 | 1978-01-31 | Sumitomo Chemical Company, Limited | Selective removal of nitrogen oxides from waste gases using V-Mo-W catalysts |
US4468474A (en) * | 1983-05-16 | 1984-08-28 | Allied Corporation | Iron/silicon-based catalyst exhibiting high selectivity to C2 -C62 Fischer-Tropsch reactions |
DE3531810A1 (de) * | 1985-09-06 | 1987-03-19 | Kraftwerk Union Ag | Katalysatormaterial zur reduktion von stickoxiden |
US4687753A (en) * | 1985-10-25 | 1987-08-18 | Exxon Research And Engineering Company | Laser produced iron carbide-based catalysts |
JP2583911B2 (ja) * | 1987-10-26 | 1997-02-19 | バブコツク日立株式会社 | 窒素酸化物除去用触媒 |
DE3739002A1 (de) * | 1987-11-17 | 1989-05-24 | Veba Oel Ag | Metallmischoxidpulver, deren mischungen, metalloxidpulver und deren verwendung bei der katalytischen dehydrierung von kohlenwasserstoffen |
DE3740289A1 (de) * | 1987-11-27 | 1989-06-08 | Degussa | Katalysator zur selektiven reduktion von stickoxiden mit ammoniak |
-
1989
- 1989-09-11 IT IT8921673A patent/IT1232325B/it active
-
1990
- 1990-08-28 DE DE69014503T patent/DE69014503T2/de not_active Expired - Fee Related
- 1990-08-28 EP EP90116443A patent/EP0417538B1/de not_active Expired - Lifetime
- 1990-08-28 AT AT90116443T patent/ATE114501T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0417538B1 (de) | 1994-11-30 |
IT8921673A0 (it) | 1989-09-11 |
IT1232325B (it) | 1992-01-28 |
ATE114501T1 (de) | 1994-12-15 |
DE69014503D1 (de) | 1995-01-12 |
EP0417538A1 (de) | 1991-03-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |