Page 349 - Elements of Chemical Reaction Engineering Ebook
P. 349
320 Multiple Reactions Chap. 6
O.D.E. SOLVER ALGORITHM
MULTIPLE ELEMENTARY REACTIONS IN A PFR
~~
1
HCHO+-O, > HCOOH k3 > CO+H,O
2
2HCHO k2 ) HCOOCH,
HCOOCH, + H20 " ) CH,OH + HCOOH
Let A = HCHO, B = 02, C = HCOOH, D = HCOOCH,, E = GO, W = H20, G = CH30H
dV
112
dV 2
5 k, C;A2 k] k]'" k,C,, (4 k4C& b] k]
+
dV
-
=
3 5 CfO k] - k4C;, E) b)
2
2
dV
=
dFE -- - k3CTok)
dV
- -
dV
5 k4C;, E] E]
dV
=
FT = FA + F, + F, + F, + F, + Fw + F,
2
312 -
FA, = 10, F,, = 5, V, = 1000, k,Cm - 0.04, k,C;, = 0.007, k,C,, = 0.014, k4Cm = 0.45
QUESTIONS AND PROBLEMS
The subscript to each of the problem numbers indicates the level of difficulty: A, least
difficult; D, most difficult.
