Applications of CPFR

The CSTR cascade is often used as a substitute for CPFR behavior, and tubular reactors themselves are rarely found in bioprocessing. Exceptions are waste water treatment in oxidation ponds, river analysis (Metcalf and Eddy, 1972), sterilization technology, and fixed-bed reactors filled with immobilized enzymes for bioconversions (Lilly and Dunnill, 1972). 

5 One-Phase (Liquid) Reactors with Arbitrary Residence Time Distribution and Micromixing 

Reusser (1961) described a graphical procedure for predicting the yield of a nonautocatalytic process taking place in a continuous reactor in which the residence time distribution (RTD) may be freely chosen and the kinetics of the 

In Fig. 6.34a, two curves are plotted that show the time course of the discontinuous process kinetics and the residence time distribution in a continuous reactor of arbitrary RTD. Normalized values are used for ease of comparison = final concentration at time fend — total concentration of the pulse used to initiate the RTD measurement). 

This plot can be used to eliminate that t axis For each value of t the values from the kinetic and the RTD curve are read and are plotted against each other in a separate diagram (Fig. 6.34b). The area under the curve gives directly the yield to be expected in the steady-state condition of a continuous process. 

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