Experimental investigations of hydrodynamic characteristics of a hybrid fluidized bed airlift reactor with external liquid circulation
Authors:
- Mateusz Prończuk,
- Katarzyna Bizon,
- Robert Grzywacz
Abstract
The paper presents a simple analytical model of the hydrodynamics of a hybrid airlift apparatus with an external liquid circulation loop. The apparatus consists of two sections: a two-phase fluidization column and a barbotage section. The advantage of such a configuration is that there is no contact between the gas phase and the solid phase, which is relevant in case of processes involving a biofilm immobilization on fine carrier particles. Then, the shear stresses produced by passing bubbles do not damage the surface of a biofilm. The proposed model was derived based on the global momentum balance. It allows to determine basic hydrodynamic parameters of the apparatus including liquid and gas velocity, gas hold-up, and porosity and height of the fluidized bed. The model was verified experimentally and the hydrodynamics of the selected zones of the apparatus was simulated using Computational Fluid Dynamics (CFD).
- Record ID
- CUT567a762c22424454a8916c7f5cb3552b
- Publication categories
- ;
- Author
- Journal series
- Chemical Engineering Research & Design, ISSN 0263-8762, e-ISSN 1744-3563
- Issue year
- 2017
- Vol
- 126
- Pages
- 188-198
- Other elements of collation
- fot.; schem.; tab.; wykr.; Bibliografia (na s.) - 197-198; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 126
- Keywords in English
- External loop airlift, fluidized bed, gas holdup, liquid circulation velocity, momentum balance
- DOI
- DOI:10.1016/j.cherd.2017.08.028 Opening in a new tab
- URL
- http://www.sciencedirect.com/science/article/pii/S0263876217304525 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 30
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT567a762c22424454a8916c7f5cb3552b/
- URN
urn:pkr-prod:CUT567a762c22424454a8916c7f5cb3552b
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.