BIOFILT - Biofiltration Column for Removing Ketone from Air

5 BIOFILT - Biofiltration Column for Removing Ketone from Air 

5 Simulation Tools and Examples of Chemical Engineering Processes 

The kinetics can be described approximately according to the Monod-type kinetics. 

The steady-state mass balances for countercurrent flow can be formulated by considering changes in the component mass rates over a differential length of column. In this case, the length is measured from the top of the column (Z=0) to the bottom, as shown in Fig. 1. The column is assumed to consist of a moist solid or liquid phase with volume Vs, and a gas phase of volume Vq. The actual support volume is included in Vs-Thus for MEK in the gas phase 

Thus in these equations for the steady-state, the convective terms are balanced by the transfer terms. Here the Kta value is based on the total volume Vx and is assumed to have the same value for each component. The linear velocities, expressed in terms of the volumetric flow rates and the empty tube cross-section, are for the gas and liquid phases. 

---