Slurry reactor aerated suspension

Power or energy dissipated in the aerated suspension has to be large enough (a) to suspend all solid particles and (b) to disperse the gas phase into small enough bubbles. It is essential to determine the power consumption of the stirrer in agitated slurry reactors, as this quantity is required in the prediction of parameters such as gas holdup, gas-liquid interfacial area, and mass- and heat-transfer coefficients. In the absence of gas bubbling, the power number Po, is defined as... 

The power in aerated slurry reactors in regime c can be calculated using Equation (3.3). In general, relations summarized by Baldi (1986) can be used for the calculation of power consumption. The most widely used correlation for the minimum rotational speed of agitation required for complete suspension of solids is that of Zweitering (Equation (3.6)). The most versatile... 

Energy dissipation and gas holdup. Gas holdup in aerated stirred slurry reactors is usually defined as fraction Eq of the total volume of the aerated suspension. 

---