Volumetric gas-liquid mass transfer coefficient in an external-loop airlift reactor with inserted membrane
The effects of the inserted membrane in the downcomer of an external-loop airlift reactor, the gas sparger type (single orifice and sinter plate) and added alcohol (ethanol, n-butanol, or n-hexanol) on the volumetric gas-liquid mass transfer coefficient (kLa) were studied. Due to the presen...
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doaj-83d34c3ae10440f299d3df095fc2a8282020-11-24T23:23:16ZengAssociation of the Chemical Engineers of SerbiaChemical Industry and Chemical Engineering Quarterly1451-93722217-74342016-01-0122327528410.2298/CICEQ150622041K1451-93721500041KVolumetric gas-liquid mass transfer coefficient in an external-loop airlift reactor with inserted membraneKojić Predrag S.0Šijački Ivana M.1Lukić Nataša Lj.2Jovičević Dragica Z.3Popović Svetlana S.4Petrović Dragan Lj.5Faculty of Technology, Department of Chemical Engineering, Novi SadFaculty of Technology, Department of Chemical Engineering, Novi SadFaculty of Technology, Department of Chemical Engineering, Novi SadFaculty of Technology, Department of Chemical Engineering, Novi SadFaculty of Technology, Department of Chemical Engineering, Novi SadFaculty of Technology, Department of Chemical Engineering, Novi SadThe effects of the inserted membrane in the downcomer of an external-loop airlift reactor, the gas sparger type (single orifice and sinter plate) and added alcohol (ethanol, n-butanol, or n-hexanol) on the volumetric gas-liquid mass transfer coefficient (kLa) were studied. Due to the presence of the membrane in the downcomer, kLa did not change significantly; the differences were smaller than 10%. The highest values of the kLa were obtained using the sinter plate. It was found that the addition of small amounts of alcohol increased the mass transfer. Using our experimental results and the data of other authors, the feed-forward back propagation neural network for prediction of kLa in external-loop airlift reactors with alcohol solutions was proposed. [Projekat Ministarstva nauke Republike Srbije, br. 172025]http://www.doiserbia.nb.rs/img/doi/1451-9372/2016/1451-93721500041K.pdfexternal-loop airlift reactormembrane modulevolumetric gas-liquid mass transfer coefficientadded alcoholssparger typeartificial neural network |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Kojić Predrag S. Šijački Ivana M. Lukić Nataša Lj. Jovičević Dragica Z. Popović Svetlana S. Petrović Dragan Lj. |
spellingShingle |
Kojić Predrag S. Šijački Ivana M. Lukić Nataša Lj. Jovičević Dragica Z. Popović Svetlana S. Petrović Dragan Lj. Volumetric gas-liquid mass transfer coefficient in an external-loop airlift reactor with inserted membrane Chemical Industry and Chemical Engineering Quarterly external-loop airlift reactor membrane module volumetric gas-liquid mass transfer coefficient added alcohols sparger type artificial neural network |
author_facet |
Kojić Predrag S. Šijački Ivana M. Lukić Nataša Lj. Jovičević Dragica Z. Popović Svetlana S. Petrović Dragan Lj. |
author_sort |
Kojić Predrag S. |
title |
Volumetric gas-liquid mass transfer coefficient in an external-loop airlift reactor with inserted membrane |
title_short |
Volumetric gas-liquid mass transfer coefficient in an external-loop airlift reactor with inserted membrane |
title_full |
Volumetric gas-liquid mass transfer coefficient in an external-loop airlift reactor with inserted membrane |
title_fullStr |
Volumetric gas-liquid mass transfer coefficient in an external-loop airlift reactor with inserted membrane |
title_full_unstemmed |
Volumetric gas-liquid mass transfer coefficient in an external-loop airlift reactor with inserted membrane |
title_sort |
volumetric gas-liquid mass transfer coefficient in an external-loop airlift reactor with inserted membrane |
publisher |
Association of the Chemical Engineers of Serbia |
series |
Chemical Industry and Chemical Engineering Quarterly |
issn |
1451-9372 2217-7434 |
publishDate |
2016-01-01 |
description |
The effects of the inserted membrane in the downcomer of an external-loop
airlift reactor, the gas sparger type (single orifice and sinter plate) and
added alcohol (ethanol, n-butanol, or n-hexanol) on the volumetric gas-liquid
mass transfer coefficient (kLa) were studied. Due to the presence of the
membrane in the downcomer, kLa did not change significantly; the differences
were smaller than 10%. The highest values of the kLa were obtained using the
sinter plate. It was found that the addition of small amounts of alcohol
increased the mass transfer. Using our experimental results and the data of
other authors, the feed-forward back propagation neural network for
prediction of kLa in external-loop airlift reactors with alcohol solutions
was proposed. [Projekat Ministarstva nauke Republike Srbije, br. 172025] |
topic |
external-loop airlift reactor membrane module volumetric gas-liquid mass transfer coefficient added alcohols sparger type artificial neural network |
url |
http://www.doiserbia.nb.rs/img/doi/1451-9372/2016/1451-93721500041K.pdf |
work_keys_str_mv |
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