Utilize este identificador para referenciar este registo: http://hdl.handle.net/10198/8288
Título: Mass transfer models for oxygen-water co-current flow in vertical bubble columns
Autor: Garcia, Valdemar
Teixeira, João Sobrinho
Palavras-chave: Vertical bubble columns
Gas-liquid bubble flow
Oxygen-water flow
Oxygen-water mass transfer
Mass transfer models
Gas-liquid co-current downflow
Gas-liquid co-current upflow
Mass transfer coefficient
Axial dispersion
Liquid axial dispersion coefficient
U tube
Data: 2012
Editora: Bentham Science Publishers
Citação: Garcia, Valdemar; Sobrinho Teixeira, João (2012) - Mass transfer models for oxygen-water co-current flow in vertical bubble columns. In Dias, Ricardo [et al.] Single and Two-Phase Flows on Chemical and Biomedical Engineering. Bentham Science Publishers. p. 386-411. ISBN 978-1-60805-504-3
Resumo: The present work reports a theoretical and experimental study of mass transfer for oxygen-water co-current flow in vertical bubble columns. The axial dispersion of liquid phase was also studied. Experiments were carried out in a 32 mm internal diameter and 5.35 and 5.37 m height columns. The superficial liquid velocity ranged from 0.3 to 0.8 m/s and volumetric flow rate ratio of gas to liquid ranged from 0.015 to 0.25. Mathematical models were developed to predict concentration of gas dissolved in the liquid as function of different physical and dynamic variables for two-phase cocurrent downflow and upflow. We obtained for the ratio of the liquid side mass transfer coefficient to initial bubbles radius, kL/r0=0.12 s-1.
Peer review: yes
URI: http://hdl.handle.net/10198/8288
ISBN: 978-1-60805-504-3
Versão do Editor: http://www.eurekaselect.com/101460/chapter/mass-transfer-models-for-oxygen-water-co-current-flow-in-vertical-bubble-column
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