| Revista: | Brazilian journal of chemical engineering |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000308888 |
| ISSN: | 0104-6632 |
| Autors: | Silva, J.D1 Lima, F.R.A2 Abreu, C.A.M Knoechelmann, A |
| Institucions: | 1Universidade Federal de Pernambuco, Departamento de Engenharia Quimica, Recife, Pernambuco. Brasil 2Universidade Federal de Pernambuco, Departamento de Energia Nuclear, Recife, Pernambuco. Brasil |
| Any: | 2003 |
| Període: | Dic |
| Volum: | 20 |
| Número: | 4 |
| Paginació: | 375-390 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental |
| Resumen en inglés | A transient experimental analysis of a three-phase descendent-cocurrent trickle-bed H2O/CH4-Ar/g -Al2O3 system was made using the stimulus-response technique, with the gas phase as a reference. Methane was used as a tracer and injected into the argon feed and the concentration vs time profiles were obtained at the entrance and exit of the bed, which were maintained at 298K and 1.013 10(5) Pa. A mathematical model for the tracer was developed to estimate the axial dispersion overall gas-liquid mass transfer and liquid-solid mass transfer coefficients. Experimental and theoretical results were compared and shown to be in good agreement. The model was validated by two additional experiments, and the values of the coefficients obtained above were confirmed |
| Disciplines | Química |
| Paraules clau: | Ingeniería química, Biotecnología, Reactores de lecho irrigado, Transferencia de masa, Reactores trifásicos, Trazador de gas, Metano |
| Keyword: | Chemistry, Chemical engineering, Biotechnology, Trickle bed reactors, Mass transfer, Three-phase reactors, Gas tracer, Methane |
| Text complet: | Texto completo (Ver HTML) |
