Page 214 - Elements of Chemical Reaction Engineering 3rd Edition

186 isothermal Reactor Design Chap. 4

4. Stoichiometry, Recalling Equation (3-45) for the case of constant tempera-
ture and pressure, we have for isothermal operation and no pressute drop
(T=To, P= Po),

FA
C,=C - (E4- 10.6)
To P,

(E4-10.7)

FC
c, = e,, - (E4- 10.8)
FT

(E4- 10.9)

-IA rB = r, (E4- 10.10)
=
5. Combining and summarizing:

Summary of
equations
describing flow and
reaction in a
membrane
reactor

6. Parameter evaluation:
C," = - 0.082 atm.dm3/(mol.K) (500 K) = 0.2 -
mol
8.2 atm
Po =
dm3
RT,

7. Numerical solution. Equations (E4-10.1) through (E4-10.10) were solved
using POLYMATH and another ODE Solver MATLAB. The profiles of the
molar flaw rates are shown below. Table E4-10.1 shows the POLYMATH