Page 116 - Process simulation and control using Aspen

106 PROCESS SIMULATION AND CONTROL USING ASPEN 1

In the CSTR model, ketene is decomposed producing carbon monoxide and
ethylene gas.
K '
CH2CO-> CO + 0.5 C2H4
where,
, 1 .5

rk = K '
-
26586
K= exp 22.8- mol/lit s . atm 15
T
25589
K' = exp 19.62- mol/lit . s

[C,] basis = Partial pressure

Here, -rA is the rate of disappearance of acetone (A), -rk the rate of disappearance
'
of ketene ik), PA the partial pressure of A, and K and K the reaction rate
constants. Pure acetone feed with a flow rate of 130 kmol/hr enters the reactor
at 7250C and 1.5 atm. The reactor with a volume of 1 .4 m3 operates at 700oC
and 1.5 atm. Applying the SYSOPO base method , compute the component mole
fractions in the product stream .

REFERENCE |

H. Scott (2005), Elements ofChemical Reaction Engineering , Prentice-Hall of India
Fogler ,
3rd ed.. New Delhi
.