In this study the specific interfacial area (gas–liquid) generated within a stirred tank and Couette–Taylor–Poiseuille flow (CTPF) reactor was determined for a range rotational speeds, and gas and liquid volumetric flow rates. The specific interfacial are

The holdup of air and water vapour dispersed in water has been measured in a H=2T reactor of 0.45 m diameter at temperatures up to boiling point at ambient pressure. The single shaft agitator comprised a hollow blade BT-6 dispersing impeller surmounted by two up-pumping Maxflo wide-blade hydrofoils. The gas holdup in these experiments was adequately correlated in terms of the specific power input and superficial gas phase velocity over the whole range of liquid temperature by the dimensional (SI) equation: GH=69×106(Pm)0.2(Vs)0.55(θK)−3.2