ES2181249T3 - Procedimiento para la reduccion catalitica de oxidos de nitrogeno. - Google Patents
Procedimiento para la reduccion catalitica de oxidos de nitrogeno.Info
- Publication number
- ES2181249T3 ES2181249T3 ES98935017T ES98935017T ES2181249T3 ES 2181249 T3 ES2181249 T3 ES 2181249T3 ES 98935017 T ES98935017 T ES 98935017T ES 98935017 T ES98935017 T ES 98935017T ES 2181249 T3 ES2181249 T3 ES 2181249T3
- Authority
- ES
- Spain
- Prior art keywords
- catalytic reduction
- flue gas
- procedure
- nitrogen oxides
- active substance
- 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
- 238000010531 catalytic reduction reaction Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 3
- 239000003546 flue gas Substances 0.000 abstract 3
- 229910021536 Zeolite Inorganic materials 0.000 abstract 2
- 239000013543 active substance Substances 0.000 abstract 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract 2
- 239000010457 zeolite Substances 0.000 abstract 2
- 229940095054 ammoniac Drugs 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000005341 cation exchange Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 150000001455 metallic ions Chemical class 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8628—Processes characterised by a specific 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
- B01J29/00—Catalysts comprising molecular sieves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0233—Other waste gases from cement factories
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Procedimiento para la reducción catalítica de óxidos de nitrógeno contenidos en los gases de escape que contengan oxígeno, procedentes de dispositivos de combustión, según el cual a los gases de escape que presentan una temperatura de 150 a 950ºC se añade amoniaco en la relación molar NO:NH3 de 1:0,5 a 1:1,5 y según el cual en una cámara de reacción, por la que circulan los gases de escape a una velocidad de 1 a 50 m/s, está suspendida una zeolita de origen natural como catalizador con un 0,1 a 10% en peso de sustancia catalíticamente activa, componiéndose de uno o varios iones metálicos, de cobre y de hierro, incorporados en la red de la zeolita mediante intercambio catiónico, caracterizado porque se usa una mezcla de zeolita natural, compuesta por un 10 a 20% en peso de mordenita, un 60 a 70% en peso de clinoptilolita, un 0 a 5% en peso de montmorillonita, y el resto de SiO2 y compuestos que contienen hierro.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19728699A DE19728699A1 (de) | 1997-07-04 | 1997-07-04 | Verfahren zur katalytischen Reduktion von Stickoxiden |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2181249T3 true ES2181249T3 (es) | 2003-02-16 |
Family
ID=7834710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES98935017T Expired - Lifetime ES2181249T3 (es) | 1997-07-04 | 1998-07-03 | Procedimiento para la reduccion catalitica de oxidos de nitrogeno. |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0996494B1 (es) |
| AT (1) | ATE222796T1 (es) |
| AU (1) | AU8440898A (es) |
| DE (2) | DE19728699A1 (es) |
| DK (1) | DK0996494T3 (es) |
| ES (1) | ES2181249T3 (es) |
| PT (1) | PT996494E (es) |
| TW (1) | TW464531B (es) |
| WO (1) | WO1999001204A1 (es) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2806322B1 (fr) * | 2000-03-14 | 2002-04-26 | Abb Alstom Power Nv | Utilisation de zeolithes pour reduire les emissions d'oxydes nitreux |
| AT500744B8 (de) * | 2005-03-11 | 2007-02-15 | Montanuniv Leoben | Verwendung eines ammoniak abgebenden reststoffes |
| EP1921050A3 (de) | 2006-11-13 | 2009-06-10 | Montanuniversität Leoben | Verfahren und Vorrichtung zur thermischen Behandlung von Rohstoff |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4473535A (en) * | 1976-01-26 | 1984-09-25 | Northeast Utilities Service Company | Process for reducing nitric oxides |
| DE3633493A1 (de) * | 1986-10-02 | 1988-04-14 | Metallgesellschaft Ag | Verfahren zur katalytischen reduktion von no |
| FR2622474B2 (fr) * | 1987-04-03 | 1990-01-26 | Azote & Prod Chim | Composition catalytique de reduction selective des oxydes d'azote contenus dans des effluents gazeux oxygenes et procede d'epuration desdits effluents |
| FR2625919B1 (fr) * | 1988-01-19 | 1994-02-11 | Institut Francais Petrole | Procede et catalyseur pour la reduction selective des oxydes d'azote |
| DE3841990A1 (de) * | 1988-12-14 | 1990-06-21 | Degussa | Verfahren zur reduktion von stickoxiden aus abgasen |
| US5171553A (en) * | 1991-11-08 | 1992-12-15 | Air Products And Chemicals, Inc. | Catalytic decomposition of N2 O |
| US5344629A (en) * | 1992-01-03 | 1994-09-06 | A. Ahlstrom Corporation | Reducing Z20 emissions |
| WO1993024207A1 (fr) * | 1992-06-01 | 1993-12-09 | Kawasaki Jukogyo Kabushiki Kaisha | Dispositif de traitement des gaz d'echappement |
| DE4313479C1 (de) * | 1993-04-24 | 1994-06-16 | Metallgesellschaft Ag | Verfahren zur Entstickung der bei der Herstellung von Zement anfallenden Abgase |
| DE4417453C1 (de) * | 1994-05-19 | 1996-01-04 | Metallgesellschaft Ag | Verfahren zur Entstickung eines Abgases |
-
1997
- 1997-07-04 DE DE19728699A patent/DE19728699A1/de not_active Withdrawn
- 1997-11-14 TW TW086116989A patent/TW464531B/zh not_active IP Right Cessation
-
1998
- 1998-07-03 AT AT98935017T patent/ATE222796T1/de not_active IP Right Cessation
- 1998-07-03 EP EP98935017A patent/EP0996494B1/de not_active Expired - Lifetime
- 1998-07-03 WO PCT/EP1998/004122 patent/WO1999001204A1/de not_active Ceased
- 1998-07-03 AU AU84408/98A patent/AU8440898A/en not_active Abandoned
- 1998-07-03 ES ES98935017T patent/ES2181249T3/es not_active Expired - Lifetime
- 1998-07-03 DE DE59805330T patent/DE59805330D1/de not_active Expired - Fee Related
- 1998-07-03 DK DK98935017T patent/DK0996494T3/da active
- 1998-07-03 PT PT98935017T patent/PT996494E/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE19728699A1 (de) | 1999-02-11 |
| EP0996494A1 (de) | 2000-05-03 |
| TW464531B (en) | 2001-11-21 |
| AU8440898A (en) | 1999-01-25 |
| DE59805330D1 (de) | 2002-10-02 |
| EP0996494B1 (de) | 2002-08-28 |
| DK0996494T3 (da) | 2002-12-09 |
| PT996494E (pt) | 2002-12-31 |
| WO1999001204A1 (de) | 1999-01-14 |
| ATE222796T1 (de) | 2002-09-15 |
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