AVERAGE DROP SIZE IN A LIQUID-LIQUID PHASE MIXING VESSEL

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

MASABUMI NISHIKAWA¹  FUYUHIKO MORI¹  SHIGEO FUJIEDA¹ 

[1] Department of Nuclear Engineering, Kyushu University

关键词: Liquid Liquid Dispersion;    Mixing Vessel;    Drop Size;    Breakup;    Coalescence;    Energy Dissipation Rate;    Weber Number;    Power Number;   

DOI  :  10.1252/jcej.20.82

来源: Maruzen Company Ltd

【 摘 要 】

References(21)Cited-By(26)When two immiscible liquids are agitated, a dispersion is formed in which continuous breakup and coalescence of drops occur, and a dynamic equilibrium is attained between breakup and coalescence after a certain time. Effects of the volume fraction of dispersed phase, viscosity of liquid, impeller speed and impeller-to-vessel diameter ratio on the average drop size of a dispersion in a mixing vessel are discussed and correlative equations are proposed. It is also found that the dominant process in deciding average drop sizes in a mixing vessel changes from breakup to coalescence when the average energy dissipation rate or the volumetric fraction of dispersed phase is increased.

【 授权许可】

Unknown