Please use this identifier to cite or link to this item:
https://open.uns.ac.rs/handle/123456789/4361
Title: | Enhanced hydrodynamics in a novel external-loop airlift reactor with self-agitated impellers | Authors: | Lukić, Nataša Šijački, Ivana Kojić, Predrag Popović, Svetlana Tekić, Miodrag Petrović, Dragan |
Issue Date: | 1-Nov-2016 | Publisher: | Elsevier | Journal: | Journal of the Taiwan Institute of Chemical Engineers | Abstract: | © 2016 Taiwan Institute of Chemical Engineers In the present work, self-agitated impellers, as a novel type of internals, have been proposed for improving hydrodynamic and mass transfer characteristics of external-loop airlift reactors. The influence of inserted self-agitated impellers, in the riser section, in various liquid phases and with different sparger types, on main hydrodynamic parameters, was studied. The results show that the insertion of impellers led to significant bubble breakage and decrease in mean bubble size, particularly in pseudoplastic liquid. Obtained riser gas holdup values were up to 47% higher, in comparison to the configuration without impellers. Higher improvements were obtained with single orifice, given that this is the least effective gas distributor. Even though impellers represent an obstacle to the flow, relatively low reduction (about 10%) in downcomer liquid velocity was observed, for all investigated cases. Having this in mind, the benefit of inserting self-agitated impellers for improving the performance of external-loop airlift reactors was apparent. | URI: | https://open.uns.ac.rs/handle/123456789/4361 | ISSN: | 18761070 | DOI: | 10.1016/j.jtice.2016.09.003 |
Appears in Collections: | TF Publikacije/Publications |
Show full item record
SCOPUSTM
Citations
11
checked on May 3, 2024
Page view(s)
25
Last Week
8
8
Last month
0
0
checked on May 10, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.