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...
Main Authors: | , , , , , |
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Format: | Article |
Language: | English |
Published: |
Association of the Chemical Engineers of Serbia
2016-01-01
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Series: | Chemical Industry and Chemical Engineering Quarterly |
Subjects: | |
Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-9372/2016/1451-93721500041K.pdf |
Summary: | 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] |
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ISSN: | 1451-9372 2217-7434 |