Page 472 - Elements of Chemical Reaction Engineering Ebook
P. 472
Sec. 8.3 Nonisothermal Continuous-FJow Reactors 443
Algorithm
E:xample: Elementary irreversible liquid-phase reaction
Given FAO, CAo, ko, E, CPi, HY
CSTR
1
I -1
FAO
Design equation V = -
-
'A
Rote law -rA = kCA
I Stoichiometry CA = CAo(l - X)
L 1
1
t
X specified:
calculate V and T
Two equations and two unknowns
xMe= - vcAO
Tk
1+~k"=- FAO
Calculate T XM@= -
.&*-E/RT
X[-AH&(TR)] + C@iEpiTo + XAtpTR
T= 14- TAe-€lRT
C49iEpi + XAhC, UA(T-T 1
FA* +ZeiCpi(T - To)
XEB = -[AH;CT,) + A&(T - T=I$
-
I
Calculate k
Plot X vs. T
F 2 : B ~
X
Figure 8-4 Algorithm for adiabatic CSTR design.
