| Revista: | Brazilian journal of chemical engineering |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000308608 |
| ISSN: | 0104-6632 |
| Autors: | Guardani, R1 Teixeira, A.C.S.C Casella, E.L |
| Institucions: | 1Universidade de Sao Paulo, Escola Politecnica, Sao Paulo. Brasil |
| Any: | 1998 |
| Període: | Sep |
| Volum: | 15 |
| Número: | 3 |
| Paginació: | 281-294 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | The relative importance of design variables affecting the fluid dynamic behavior of a fluidized bed reactor for the gas-phase ethylene polymerization is discussed, based on mathematical modeling. The three-phase bubbling fluidized bed model is based on axially distributed properties for the bubble, cloud and emulsion phases, combined with correlations for population balance and entrainment. Under the operating conditions adopted in most industrial processes, the reactor performance is affected mainly by the reaction rate and solids entrainment. Simulation results indicate that an adequate design of the freeboard and particle collecting equipment is of primary importance in order to produce polymeric particles with the desired size distribution, as well as to keep entrainment and catalyst feed rates at adequate levels |
| Disciplines | Química |
| Paraules clau: | Química de polímeros, Química orgánica, Polimerización de etileno, Reactor de lecho fluidizado |
| Keyword: | Chemistry, Organic chemistry, Polymer chemistry, Ethylene polymerization, Fluidized bed reactor |
| Text complet: | Texto completo (Ver HTML) |
