| Revista: | Quimica nova |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000313340 |
| ISSN: | 0100-4042 |
| Autors: | Nele, Marcio1 Moreno, Esteban Lopez2 Andrade, Heloysa Martins Carvalho3 |
| Institucions: | 1Universidade Federal do Rio de Janeiro, Escola de Quimica, Rio de Janeiro. Brasil 2Ministerio da Ciencia e Tecnologia, Centro de Tecnologia Mineral, Rio de Janeiro. Brasil 3Universidade Federal da Bahia, Instituto de Quimica, Salvador, Bahia. Brasil |
| Any: | 2006 |
| Període: | Jul |
| Volum: | 29 |
| Número: | 4 |
| Paginació: | 641-645 |
| País: | Brasil |
| Idioma: | Portugués |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | The effect of operational variables and their interaction in TPR profiles was studied using a fractional factorial experimental design. The heating rate and the reducing agent concentration were found to be the most important variables determining the resolution and sensitivity of the technique. They showed opposite effects. Therefore, they should be manipulated preferentially in order to obtain optimized TPR profiles. The effect of sample particle size was also investigated. The tests were carried out within a Cu/Zn/Al2O3 catalyst used for the water-gas shift reaction that presented two distinct species of Cu2+ in TPR profiles |
| Disciplines | Química |
| Paraules clau: | Fisicoquímica y química teórica, Ingeniería química, Reducción térmica programada, Catalizadores, Diseño experimental |
| Keyword: | Chemistry, Physical and theoretical chemistry, Chemical engineering, Temperature programmed reduction, Catalysts, Experimental design |
| Text complet: | Texto completo (Ver HTML) |
