Multistage mechanically agitated reactors

Novel gas-liquid mechanically agitated reactors such as multistage mechanically agitated reactors, gas-inducing contactors, and cyclone reactors should find an increasing number of applications. 

The liquid-phase mixing in a multistage mechanically agitated reactor is best correlated by Eq. (2.31) in the absence of gas flow and by Eq. (2.32) in the presence of gas flow. The mixing time can be estimated from the study of Paca et al. (1976). Experimental work is needed to estimate gas-phase back-mixing. The use of Eq. (2.36) for the calculation of the gas-liquid volumetric mass transfer coefficient in a multistage mechanically agitated column is recommended. 

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