Batch Reactor - Bioprocess Engineering: Kinetics, Biosystems, Sustainability and Reactor Design - page 171

To perform part (b), you will only need to type 10 into the cell for C C0 , which is currently 0.
The numbers (solution) should change automatically. If not, press “F9” key. You will see the
difference immediately. The screen is shown above on the right ( Fig. E4-8.2 b). Comparing the
solutions for part (a) and for part (b), one can observe that an increase in concentration C
decreases the rate of conversion for A significantly.
Figure E4-8.3 shows the final solutions as plotted out for the concentrations of A and C
( Fig. E4-8.3 a) and B ( Fig. E4-8.3 b) as functions of time. One can observe that as the final

12

(a)

C C, b)
C A0 10

C A, b)

8

C A, a)

6

4

C C, a)

2

0

0 20 40 60 80 100

k 1 t

(b)

C A and C C

0.30

0.25

0.20

0.15

0.10

C B, a)

0.05

C B, b)

0.00

0 1 2 3 4 5 1 1

k 1 t

C B

FIGURE E4-8.3 The concentrations of A, B, and C in the reactor as functions of time.