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International Journal of Chemical Reactor Engineering

Ed. by de Lasa, Hugo / Xu, Charles Chunbao

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1542-6580
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Dynamic Technique to Determine Hexadecane Transfer Rate from Organic Phase to Aqueous Phase in a Three-Phase Bioreactor

Manuel Alejandro Lizardi-Jiménez / Gerardo Saucedo-Castañeda / Frederic Thalasso / Mariano Gutiérrez-Rojas
Published Online: 2011-05-02 | DOI: https://doi.org/10.1515/1542-6580.2443

Determination of mass transfer of non-water soluble substrates, as hexadecane (HXD), is an important constraint in three-phase airlift bioreactor. A new simple dynamic technique able to measure the hexadecane transfer rate (HTR) in a three-phase airlift bioreactor (ALB) was studied in this work. The image analyses technique allowed measuring the resulting specific mass transfer area (aHXD). Gas chromatography was used to measure time-dependent transferred HXD and therefore the HXD transfer coefficient (kLHXD). Finally, HTR was calculated by using the equation HTR = kLaHXD•(CHXD* - CHXD) where CHXD* and CHXD are the saturation HXD-aqueous interphase and HXD aqueous phase concentration, respectively. As case study, we successfully applied to the measurement of HTR during a typical ALB microbial consortium culture; values from 0.010 to 0.042 mg HXD (L h)-1 were found. This technique could be used to compare similar simultaneously occurring parameters to assess mass transfer constraints in three-phase systems.

Keywords: airlift; three-phase system; mass transfer; technique; hexadecane

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Published Online: 2011-05-02


Citation Information: International Journal of Chemical Reactor Engineering, ISSN (Online) 1542-6580, DOI: https://doi.org/10.1515/1542-6580.2443.

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[1]
S.A. Medina-Moreno, A. Jiménez-González, M. Gutiérrez-Rojas, and M.A. Lizardi-Jiménez
International Biodeterioration & Biodegradation, 2013, Volume 84, Page 1

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