Oxygen Transfer in a Three-Phase Circulating Fluidized Bed with Viscous Liquid Medium

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Uk Yeong Kim¹  Yong Kang¹  Sung Mo Son¹  Sang Done Kim²  Ik Sang Shin¹  Suk Hwan Kang¹ 

[1] School of Chemical Engineering, Chungnam National University;Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology

关键词: Oxygen Transfer;    Viscous Medium;    Three-Phase;    Circulating Fluidized Bed;   

DOI  :  10.1252/jcej.07WE119

来源: Maruzen Company Ltd

【 摘 要 】

References(28)Cited-By(5)Characteristics of oxygen transfer were investigated in the riser of a viscous three-phase circulating fluidized bed, with a diameter of 0.102 m (ID) and a height of 3.5 m. Effects of gas (0.01–0.09 m/s) and liquid (0.12–0.43 m/s) velocities, fluidized solid particle size (1.0, 1.7, 2.1, 3.0 mm), solid circulation rate (2–8 kg/(m2·s)) and liquid viscosity (0.96–38 mPa·s) on the volumetric oxygen transfer coefficient in the riser were examined. The oxygen transfer coefficient was found to increase with increasing gas velocity, particle size and solid circulation rate, while it decreased with increasing viscosity of the continuous liquid medium, and changed very little with the variation of liquid velocity. The oxygen transfer coefficients were well correlated in terms of dimensionless groups as well as operation variables.

【 授权许可】

Unknown