Example 8-4 Isomerization of Normal Butane with Heat Exchanger    |POLVER05_0
d(X)/d(V) =   -ra/Fa0   #
d(T)/d(V) = ((ra*deltaH)-Ua*(T-Ta))/Cpo/Fa0 #
Ca0 =    9.3  #
Fa0 = .9*163*.1 #
Kc =    3.03*exp(-830.3*((T-333)/(T*333)))  #
k =    31.1*exp(7906*(T-360)/(T*360))  #
Xe =    Kc/(1+Kc)  #
ra =    -k*Ca0*(1-(1+1/Kc)*X)  #
deltaH =    -6900  #
Ua =    5000  #
Ta =    310  #
Cpo =    159  #
rate = -ra #
V(0)=0
X(0)=0
T(0)=310
V(f)=5