
359Heterogeneous Reactors
Sc
D
A
==
×
×
=
−
−
µ
ρ
(. )
(. )(
.
34810
1 187 37610
078
6
6
j
D
B
p
=
∈
0 458 0 458
045
3682 0 036
0 407 0 407
.
(Re)
.
.
() .
k
jU
Sc
g
D
== =
()
(. )( .)
(. )
.
//23 23
0 036 085
078
0 0361 m/s
Z
L
SkkL
x
Bg P
Ae
Ae Af
=
−∈
+
′
−
υ
ηρ
0
0
1
11
()
ln
x
Af
= 0.95 x
Ae
;
x
xx
Ae
Ae Af
−
=
−
=
1
1095
20
.
Z =
×
−
+
−
(. )( .)
(. )( .) .(.)(.
0 1667 3 175 10
0 196 1045
1
0 0361
1
0 298 219
3
×
=
10 1910 3 175 10
20
413
)( )(
ln
. m
Note: Refer MATLAB program: catreact_dsn_pckbed.m
4.2.2.1.2 Fluidised Bed Catalytic Reactor
In uidised bed catalytic reactors, catalysts in the form of small solid particles (of size
<1000 µm) are uidised by passing a stream of uid contai