Page 500 - Elements of Chemical Reaction Engineering Ebook

Sec. 8.4 Equilibrium Conversion 47 1

The calculations are shown in Table E8-8.1.

TABLE E8-8. I. EQUILIBRIUM CONVERSION
AS A FUNCTION OF TEMPERATURE
T K, xe
298 100,000.00 1 .oo
350 66 1.60 1 .oo
400 18.17 0.95
425 4.14 0.80
450 1.11 0.53
475 0.34 0.25
500 0.12 0.11

For a reaction carried out adiabatically, the energy balance rei-ices to

(E8-8.6)

Conversion
calculated from
energy balance
I
Data from Table E8-8.1 and the following data are plotted in Figure E8-8.1.
3;
:' 400 500 600
__
0.25 0.50 0.75
X, = 0.41 T, = 465 K
For a feed temperature of 300 K, the adiabatic equilibrium temperature is
465 K and the corresponding adiabatic equilibrium corrversion is 0.4 1.

0.6 -
><
0.4 -

300 400 500 600
T
F'igure ES-8.1 Finding the a&abatic equilibrium temperature (T,) and conversion
K).