ASSESSMENT OF HYDRODYNAMICS IN LAB-SCALE THREE-PHASE INTERNAL LOOP AIRLIFT REACTORS

摘要

Hydrodynamic regimes establishing in lab-scale internal circulation airlifts operated at low superficial gas velocity are addressed. Effects of draft height and bottom clearance on hydrodynamics were investigated. Transitions between hydrodynamic regimes are analysed in the light of the "dense-separated" versus "dilute-pseudo-homogeneous" flow conditions establishing at the annulus-draft bottom clearance.