ES2008665A4 - Metodo para fabricar un catalizador para reducir los oxidos nitricos en gases de escape. - Google Patents
Metodo para fabricar un catalizador para reducir los oxidos nitricos en gases de escape.Info
- Publication number
- ES2008665A4 ES2008665A4 ES86113780T ES86113780T ES2008665A4 ES 2008665 A4 ES2008665 A4 ES 2008665A4 ES 86113780 T ES86113780 T ES 86113780T ES 86113780 T ES86113780 T ES 86113780T ES 2008665 A4 ES2008665 A4 ES 2008665A4
- Authority
- ES
- Spain
- Prior art keywords
- catalyst
- manufacture
- exhaust gases
- nitric oxides
- reduce nitric
- 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.)
- Granted
Links
- 239000003054 catalyst Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 3
- 239000007789 gas Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 229910052598 goethite Inorganic materials 0.000 abstract 2
- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 238000006555 catalytic reaction Methods 0.000 abstract 1
- 238000010531 catalytic reduction reaction Methods 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 238000006722 reduction reaction Methods 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/745—Iron
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Método para la fabricación de un catalizador que contiene óxido de hierro, para reducir óxido nítrico en gases de escape, especialmente mediante reducción catalítica por medio de amoniaco, caracterizado porque se criba mineral de hierro natural goetitico de un tamaño entre 0,5 y 50 mm, se redondea después del cribado, en un tambor, despues se sumerge para el tratamiento con ácido, en un baño de ácido sulfurico y porque despues del baño de ácido se calienta a una temperatura de mas de 220ºC que corresponde aproximadamente a la temperatura de aplicación durante la reacción catalítica.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853543858 DE3543858A1 (de) | 1985-12-12 | 1985-12-12 | Verfahren zur herstellung eines katalysators zur stickoxidreduzierung von abgasen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2008665A4 true ES2008665A4 (es) | 1989-08-01 |
| ES2008665B3 ES2008665B3 (es) | 1990-06-01 |
Family
ID=6288235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES86113780T Expired - Lifetime ES2008665B3 (es) | 1985-12-12 | 1986-10-04 | Metodo para fabricar un catalizador para reducir los oxidos nitricos en gases de escape. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4751212A (es) |
| EP (1) | EP0229229B1 (es) |
| AT (1) | ATE48543T1 (es) |
| AU (1) | AU6650786A (es) |
| DE (2) | DE3543858A1 (es) |
| ES (1) | ES2008665B3 (es) |
| ZA (1) | ZA869016B (es) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3727118A1 (de) * | 1987-08-14 | 1989-02-23 | Didier Werke Ag | Verfahren zur herstellung von katalysatoren fuer die reduzierung von stickoxiden aus abgasen oder fuer chemische luftreinigungsverfahren und nach dem verfahren hergestellte katalysatoren |
| DE3729912A1 (de) * | 1987-09-07 | 1989-03-16 | Didier Werke Ag | Verfahren zum beschichten eines katalysatortraegers |
| WO1990010493A1 (de) * | 1989-03-07 | 1990-09-20 | Brueckner Raimund | Verfahren zum beschichten eines katalysatorträgers |
| DE4404329C2 (de) * | 1994-02-11 | 1996-07-11 | Cs Halbleiter Solartech | Entsorgung von Flourchlorkohlenwasserstoffen und Halonen |
| US6045628A (en) * | 1996-04-30 | 2000-04-04 | American Scientific Materials Technologies, L.P. | Thin-walled monolithic metal oxide structures made from metals, and methods for manufacturing such structures |
| US5814164A (en) | 1994-11-09 | 1998-09-29 | American Scientific Materials Technologies L.P. | Thin-walled, monolithic iron oxide structures made from steels, and methods for manufacturing such structures |
| NL9402180A (nl) * | 1994-12-21 | 1996-08-01 | Hoogovens Staal Bv | Werkwijze voor het verwijderen van NOx uit een gas door middel van selectieve katalytische reductie. |
| US6461562B1 (en) | 1999-02-17 | 2002-10-08 | American Scientific Materials Technologies, Lp | Methods of making sintered metal oxide articles |
| CN115193446B (zh) * | 2022-07-12 | 2023-10-20 | 北京科技大学 | 一种选择性催化脱除NOx的催化剂的制备方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US948947A (en) * | 1908-06-19 | 1910-02-08 | Theodore J Wrampelmeier | Catalytic and process of making same. |
| US4107272A (en) * | 1973-05-21 | 1978-08-15 | Hitachi, Ltd. | Process for removing nitrogen oxides using ammonia as a reductant and sulfated metallic catalysts |
| DE2512409C3 (de) * | 1975-03-21 | 1982-04-29 | Bayer Ag, 5090 Leverkusen | Verfahren zum Entfernen von Stickstoffoxiden aus Abgasen |
| DE2512410C3 (de) * | 1975-03-21 | 1985-04-18 | Didier Engineering Gmbh, 4300 Essen | Verfahren zur Entfernung von Stickoxiden und Anlage zur Durchführung des Verfahrens |
| US4081511A (en) * | 1975-03-21 | 1978-03-28 | Didier Engineering Gmbh | Process for removing nitric oxides from processing exhaust gases |
| GB1554300A (en) * | 1975-09-05 | 1979-10-17 | Nippon Kokan Kk | Method of reducing nitrogen oxides present in an exhaust to nitrogen |
| DE2619662C3 (de) * | 1976-05-04 | 1978-10-26 | Tatsukiyo Otsuki | Verfahren zur Behandlung von Stickstoffoxide enthaltendem Abgas |
| US4132635A (en) * | 1977-01-13 | 1979-01-02 | Michigan Technological University | Beneficiation of iron ores by froth flotation |
| JPS542990A (en) * | 1977-06-10 | 1979-01-10 | Kyushu Refractories | Catalyst for reducing nitrogen oxides and its manufacturing method |
| JPS54117388A (en) * | 1978-03-06 | 1979-09-12 | Kawasaki Steel Co | Preparation of catalyst for removing nitrogen oxide |
-
1985
- 1985-12-12 DE DE19853543858 patent/DE3543858A1/de active Granted
-
1986
- 1986-10-04 EP EP86113780A patent/EP0229229B1/de not_active Expired
- 1986-10-04 AT AT86113780T patent/ATE48543T1/de not_active IP Right Cessation
- 1986-10-04 ES ES86113780T patent/ES2008665B3/es not_active Expired - Lifetime
- 1986-10-04 DE DE8686113780T patent/DE3667407D1/de not_active Expired - Lifetime
- 1986-11-28 ZA ZA869016A patent/ZA869016B/xx unknown
- 1986-12-05 US US06/938,525 patent/US4751212A/en not_active Expired - Fee Related
- 1986-12-11 AU AU66507/86A patent/AU6650786A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| ES2008665B3 (es) | 1990-06-01 |
| US4751212A (en) | 1988-06-14 |
| DE3667407D1 (de) | 1990-01-18 |
| EP0229229A1 (de) | 1987-07-22 |
| DE3543858C2 (es) | 1988-10-06 |
| ATE48543T1 (de) | 1989-12-15 |
| DE3543858A1 (de) | 1987-06-19 |
| ZA869016B (en) | 1987-07-29 |
| AU6650786A (en) | 1987-06-18 |
| EP0229229B1 (de) | 1989-12-13 |
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