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http://dspace.mediu.edu.my:8181/xmlui/handle/10261/3474Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.creator | Efstathiou, Angelos | - |
| dc.creator | Costa Costas, N. | - |
| dc.creator | García Fierro, José Luis | - |
| dc.date | 2008-04-08T11:18:01Z | - |
| dc.date | 2008-04-08T11:18:01Z | - |
| dc.date | 2003-08-21 | - |
| dc.date.accessioned | 2017-01-31T01:01:37Z | - |
| dc.date.available | 2017-01-31T01:01:37Z | - |
| dc.identifier | International Publication Number: WO 2003/068390 A1 | - |
| dc.identifier | http://hdl.handle.net/10261/3474 | - |
| dc.identifier.uri | http://dspace.mediu.edu.my:8181/xmlui/handle/10261/3474 | - |
| dc.description | Filing Date: 2003-02-14.--Priority Data: ES P 0200368 (2002-02-15) | - |
| dc.description | [EN] The invention relates to a novel catalyst having excellent activity, selectivity and stability for reducing nitric oxide to gas nitrogen, with hydrogen being used as a reducing agent, in the low temperature range 100-200 °C and in the presence of an excess of oxygen (e.g. 5 % vol), H2O (5 % vol) and/or SO2 (20 ppm) in the supply. The inventive catalyst consists of platinum crystals which are in contact with the phases of a mixed MgO and CeO2 medium or in the form of platinum supported on the mixed MgO-CeO2 medium which has already been sulphated in a selective manner. The Pt/MgO-CeO2 catalyst can be used to obtain NO conversion levels which are greater than 40 % and nitrogen selectivity values of greater than 80 % under NOx oxidation conditions in the 100-400 °C temperature range and for a surface contact time of 0.045 s. In particular, full NO conversion is obtained as well as N2 selectivity levels of 83 % at 150 °C with a reaction mixture of 0.25 % NO/1 % H2/5 % O2/5 % H2O/He. | - |
| dc.description | [ES]Nuevo catalizador que presenta actividad, selectividad y estabilidad excelentes para la reducci6n de 6xido nitrico a nitr6geno gas con hidr6geno como agente reductor en el rango de temperaturas bajas de 100 200 0C y en presencia de exceso de oxigeno (p.ej. 5 % vol), H20 (5 % vol) y/o SO2 (20 ppm), en la alimentaci6n. El catalizador consiste en cristales de platino en contacto con las fases de un soporte mixto de MgO y CeO2 o en forma de platino soportado sobre el soporte mixto MgO CeO2 previamente sulfatado de forma selectiva. Con el catalizador PtIMgO CeO2 se obtienen niveles de conversi6n de NO superiores a 40 % y valores de selectividad de nitr6geno por encima del 80 % en condiciones de NOx oxidantes en el rango de temperatura 100 400 0C y con un tiempo de contacto superficial de 0.045 s. En particular, se obtiene conversi6n completa de NO y niveles de selectividad a N2 de 83 % a 150 0C con una mezcla de reacci6n de 0.25 % NO/i % H2/5 % 02/5 %H20/He. | - |
| dc.format | 2253911 bytes | - |
| dc.format | application/pdf | - |
| dc.language | spa | - |
| dc.language | eng | - |
| dc.rights | openAccess | - |
| dc.title | Nuevo catalizador para la reducción de NO TO a N2 con Hidrógeno en condiciones NOx oxidantes | - |
| dc.title | Novel Catalyst for the reduction of NO TO N2 with hydrogen under NOx oxidation condictions | - |
| dc.type | Patente | - |
| Appears in Collections: | Digital Csic | |
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