3.8 DAE Equations for Binary Batch Distillation - Approach 2
d(L)/d(x2)=L/(k2*x2-x2)
d(T)/d(x2)=(k2-k1)/(ln(10)*(x1*k1*(-1211.033)/(220.79+T)^2+x2*k2*(-1344.8)/(219.482+T)^2))
k2=10^(6.95464-1344.8/(T+219.482))/(760*1.2)
k1=10^(6.90565-1211.033/(T+220.79))/(760*1.2)
x1=1-x2
x2(0)=0.4
L(0)=100
T(0)=95.5851
x2(f)=0.8