| Revista: | Quimica nova |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000313277 |
| ISSN: | 0100-4042 |
| Autores: | Martins, Leandro1 Peguin, Robson Pablo Sobradiel Urquiet González, Ernesto Antonio |
| Instituciones: | 1Universidade Federal de Sao Carlos, Departamento de Engenharia Quimica, Sao Carlos, Sao Paulo. Brasil |
| Año: | 2006 |
| Periodo: | Abr |
| Volumen: | 29 |
| Número: | 2 |
| Paginación: | 223-229 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | |Cu x|[Si yAl]-MFI and |Co x|[Si yAl]-MFI catalysts were prepared by ion exchange from |Na|[Si yAl]-MFI zeolites (y = 12, 25 and 45). The activity of the catalysts was evaluated in the reduction of NO to N2 in an oxidative atmosphere using propane or methane as reducing agents. The Cu catalysts were only active with propane and they presented higher activity than the Co-based catalysts, the latter being active with both hydrocarbons. H2-TPR and DRS-UV/Vis data allowed correlation between the activity towards NO reduction and the presence of cationic charge-compensating species in the zeolite. It was also verified that the hydrocarbons are preferentially oxidised by O2, a reaction that occurs simultaneously with their oxidation with NO |
| Disciplinas: | Química |
| Palabras clave: | Ingeniería química, Catalizadores, Zeolitas, Oxido nítrico, Reducción química, Propano, Oxidación |
| Keyword: | Chemistry, Chemical engineering, Catalysts, Zeolites, Nitric oxide, Chemical reduction, Propane, Oxidation |
| Texto completo: | Texto completo (Ver HTML) |
