In Example 29.1e we could have used any one of the three contacting schemes shown in Fig. P29.19. We stated without proof that the bypass scheme was best. Show that this is so by calculating C_Aout for the three contacting schemes of Fig. P29.19.

Example 29.1e

Let us illustrate the above important optimization principle by suggesting how to best operate various combinations of mixed flow reactors for a fermentation which follows Monod kinetics, and where

and all quantities are expressed in consistent units. Consider in turn the following setups

(e) Two MFR, v = 1.5

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k = 2, CA0=3, CM1, C/A-1 and Vm=1 for each reactor