MEAN BUBBLE DIAMETER AND OXYGEN TRANSFER COEFFICIENT IN A THREE-PHASE FLUIDIZED BED BIOREACTOR

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

YAN SUN¹  SHINTARO FURUSAKI¹ 

[1] Department of Chemical Engineering, University of Tokyo

关键词: Mass Transfer;    Mean Bubble Diameter;    Interfacial Area;    Mass Transfer Coefficient;    Electroresistivity Probe;    Three Phase Fluidized Bed;    Bioreactor;    Calcium Alginate Gel;   

DOI  :  10.1252/jcej.21.20

来源: Maruzen Company Ltd

【 摘 要 】

References(7)Cited-By(14)The volume-surface mean diameter of bubbles dvs was measured using the electroresistivity probe method. From the mean bubble diameter and volumetric mass transfer coefficient kLa, interfacial area a and mass transfer coefficient kL were obtained. The solid phase, Ca-alginate gels, had almost no effect on bubble breakup, and a decrease in kLa with decreasing gel diameter was found to be caused by the corresponding decrease in kL. The mean bubble diameter increased significantly with increasing particle concentration. The value of kL was not affected by particle concentration. Thus, a decrease in kLa with increasing particle concentration was mainly attributed to the corresponding decrease in interfacial area. Dimensionless correlations were proposed for dva, a and kL.

【 授权许可】

Unknown