Page 80 - Modeling of Chemical Kinetics and Reactor Design

50 Modeling of Chemical Kinetics and Reactor Design

Figure 1-6. Reaction rate of ethyl nitrate as a function of concentration.

Example 1-5
Determine the Michaelis-Menten Parameters V max and K for
m
the reaction:
k 1
*
urea + urease [ [ urea urease] + H O
•
2
k 2
[ urea urease] + H O  → 2 NH 3 + CO 2 + urease
*

k 3
•
2
The rate of reaction is given as a function of urea concentration in
Table 1-4.
Solution

Using Equation 1-220

V = V max • C urea
O (1-220)
C urea + K m

and rearranging gives