Page 532 - Elements of Chemical Reaction Engineering Ebook

502 Steady-State Nonisothermal Reactor Design Chap. 8

Solution
The PFX energy balawe becomes (cf. Equation (8-87))

Mole balances:

(E8-11.4)

(E8-11.5)

(E8-11.6)

Rate laws:

(E8-11.7)
cB = cTO b) F) (E8-11.8)

(E8-11.9)

(E8-11.10)

k2~ 5.0 eXp [ 9000 (&j - k)]
=

dT - 4000(375 - T) + ( -r1,)(20,000) f ( -r2A)(60,000) (E8-11.11)
--
dV 90FA + 90FB + 180Fc
The algorithm for
multiple reactions Stoichiometry (gas phase), AP = 0:
with heat effects
‘1A = -klACA

The POLYMATH program and its graphicaLoutputs are shown in Table E8-11.1 and
Figures ES-11.1 and E8-11.2.