Mass Transfer in Highly Viscous Liquids in a Bubble Column with Constant-Flow Nozzles

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Koichi Terasaka¹  Hideki Tsuge¹ 

[1] Department of Applied Chemistry, Keio University

关键词: Bubble Column;    Mass Transfer;    Gas Holdup;    Viscous Liquid;    Constant Flow;   

DOI  :  10.1252/jcej.24.424

来源: Maruzen Company Ltd

【 摘 要 】

References(11)Cited-By(10)Bubble columns with constant-flow nozzles were used to obtain high values of gas holdup ε and volumetric mass transfer coefficient kLa for highly viscous liquids at relatively low gas-flow rates.Effects of various factors on ε, kLa, mass transfer coefficient kL, bubble volume VB formed at constant-flow nozzle, and gas–liquid interfacial area a were investigated experimentally. Liquid viscosity, superficial gas velocity, number of constant-flow nozzles and pitch affected ε, kLa, kL, VB and a. The experimental results were correlated by dimensionless equations, which were compared with previous works.For a given energy input, a in this bubble column was larger than that in conventional bubble columns with a perforated plate as gas distributor.

【 授权许可】

Unknown