Page 131 - Analysis, Synthesis and Design of Chemical Processes, Third Edition

Furthermore, the volume of a batch is found by multiplying Equation (3.10) by v reac,x , and equating batch

volumes for the different products yields

(3.11)

(3.12)

Solving Equations (3.9) and (3.12) yields

t = 53.8h
A

t = 148.1h
B

t = 298.1h
C

v = v = v = 7.17 m 3
react,A react,B react,C
Number of batches per campaign for product A = 7.7
Number of batches per campaign for product B = 16.5
Number of batches per campaign for product C = 29.8

Clearly the number of batches should be an integer value. Rounding these numbers yields
For product A
Number of batches = 8
t = (8)(7) = 56 h
A
V = (10,000)(0.005507)(7)/(56) = 6.88 m 3
A
For product B
Number of batches = 16
t = (16)(9) = 144 h
B
V = (15,000)(0.007860)(9)/(144) = 7.37 m 3
B
For product C
Number of batches = 30