Page 163 - Elements of Chemical Reaction Engineering 3rd Edition

Sec. 4.2 Scale-up of Liquid-Phase Batch Reactor Data to the Design of a CSTR 135

Stoichiometric table
for constant volume

NA
NA
c - - = -
A - v v,

4. Combining the rate law and the mole balance, we have

(E4-1.3)

For isothermal operation we can integrate this equation,

Combining
mole balance, using the initial condition that when t = 0, then CA = GAo. The initial con-
rate law, and centration of A after mixing the two volumes together is 1.0 kmol/m3
stoichiometry (1 mom).
.5. Integrating yields

In = kt (E4-1.4)
LA
cc kfl
The concentration of ethylene oxide at any time t is
t

The concentration of ethylene glycol at any time t can be obtained from the
reaction stoichiometry:
t
A+B __$ C
NC = NAOX = NAo- NA

For liquid-phase reactions V = V,,