GAS HOLDUP AND VOLUMETRIC LIQUID-PHASE MASS TRANSFER COEFFICIENT IN SOLID-SUSPENDED BUBBLE COLUMNS

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

MASAO KOMURA¹  AKIHIRO TAKAZAWA¹  HIDETOSHI MATSUNAGA¹  Kozo KOIDE¹ 

[1]Department of Chemical Engineering, Shizuoka University

关键词: Mass Transfer;    Bubble Column;    Solid Particles;    Gas Holdup;    Flow Regime;    Chemical Reactor;   

DOI  :  10.1252/jcej.17.459

来源: Maruzen Company Ltd

【 摘 要 】

References(16)Cited-By(64)The effects of column dimensions, gas velocity and the properties of liquid and solid particles on the gas holdup εG and the volumetric liquid-phase mass transfer coefficient kLa in the solid-suspended bubble column of liquid-solid batch operation were studied experimentally. The presence of suspended solid particles in the bubble column reduces values of εG and kLa, and their reduction by an addition of solid particles to the column is high in the transition regime and low in the heterogeneous flow regime. Based on these observations, empirical equations for εG in transition flow and in heterogeneous flow, and an empirical equation for kLa a applicable to the above two flow regimes are proposed.

【 授权许可】

Unknown