| Titre : | Slip velocity in downer reactors: drag coefficient and the influence of operational variables (2010) |
| Auteurs : | Mohammad Ashraful Islam, Auteur ; Stefan Krol, Auteur ; Hugo I. De Lasa, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 49 N° 15, Août 2010) |
| Article en page(s) : | pp 6735–6744 |
| Note générale : | Chimie industrielle |
| Langues : | Anglais |
| Tags : | Slip velocity Operational variables. |
| Résumé : | Cluster formation in downer reactors is considered a most important factor influencing slip velocity between the flowing phases. This study investigates the formation of clusters using CREC-GS-Optiprobes. This probe is a nonintrusive device that records information from a well-defined optical measuring volume. This probe can provide accurate measurements tracking closely gas−solid flows in downer units. This study shows that cluster drag coefficients can be correlated as function of both Reynolds number and number of particles contained in agglomerates. This yields a close to linear relationship between cluster size and average slip velocity. |
| DEWEY : | 660 |
| ISSN : | 0888-5885 |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie901466p |
