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    • ISSN: 2010-0221
    • Frequency: Bimonthly
    • DOI: 10.7763/IJCEA
    • Editor-in-Chief: Dr. Eldin W. C. Lim
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Editor-in-chief
Dept. of Chemical and Biomolecular Engineering,
National University of Singapore, Singapore

IJCEA 2014 Vol.5(1): 41-45 ISSN: 2010-0221
DOI: 10.7763/IJCEA.2014.V5.348

Hydrodynamic and Mass Transfer Study in a Mechanically Stirred Hybrid Airlift Bioreactor Based on Impeller Type

Sérgio S. de Jesus, Aline Santana, and Rubens Maciel Filho
Abstract—The analysis of the influence by the impeller type in a stirred hybrid airlift bioreactor was performed in relation to the gas holdup, and mass transfer. The comparative study was performed using three-bladed marine and Lightnin A310 (axial flow impellers), and six-bladed Rusthon turbine and six-bladed Smith turbine (radial flow impellers). The experiments were conducted using distilled water at 250C and a constant rotation velocity of 800 rpm, as well as in the absence of agitation (airlift mode); the superficial gas velocity varied from 0.0157 to 0.0262 ms-1. The gas holdup and oxygen transfer coefficient was higher with the use of radial impellers; however, the mechanical power input required while using radial impellers is 730-1400% higher than with axial impellers.

Index Terms—Axial Impeller, hydrodynamics, mass transfer, radial impeller, stirred airlift bioreactor.

S. S. de Jesus, A. Santana and R. Maciel Filho are with the School of Chemical Engineering, University of Campinas, Campinas, CP 6066 Brazil (tel.: 55-19-3521-3958; fax: 55-19-3521-3965; e-mail: ssjesus@gmail.com).

[PDF]

Cite: Sérgio S. de Jesus, Aline Santana, and Rubens Maciel Filho, "Hydrodynamic and Mass Transfer Study in a Mechanically Stirred Hybrid Airlift Bioreactor Based on Impeller Type," International Journal of Chemical Engineering and Applications vol. 5, no. 1, pp. 41-45, 2014.

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