Page 78 - Modeling of Chemical Kinetics and Reactor Design

48 Modeling of Chemical Kinetics and Reactor Design

and

 k  05 .
C =  1 • C C H ONO 2  (1-215)
CH O *  k 4 2 5 
2
5

From Equation 1-214

5
2
C * = k 2 • C CH O *
CH 3 k 3 C C H ONO 2
2
5
= k 2 • 1   k 1 • C C H ONO 2   05 .
k C  k 2 5 
3 C H ONO 2 4
2
5
 k 1  05 .
k
= 2  1 •  (1-216)
k 3  k 4 C C H ONO 2 
5
2
For ethyl nitrate, Equation 1-209 becomes

   05 . 

− ( r ) =  k + k • k 2  k 1 • 1  
 C
C H ONO 2 net 1 3 k k C C H ONO 2
5
2
2
5
 3  4 C H ONO 2  


5
2
  05 . 



=  k 1 + k 2  k 1  • 1 05 .  C C H ONO 2 (1-217)
2
5
  k 4  ( C C H ONO 2 ) 


2
5
where k and k are small in comparison with k , therefore,
1 4 2