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Green Chemical Engineering
book

Green Chemical Engineering

by S. Suresh, S. Sundaramoorthy
December 2014
Intermediate to advanced content levelIntermediate to advanced
541 pages
17h 38m
English
CRC Press
Content preview from Green Chemical Engineering
364 Green Chemical Engineering
The net rate of conversion of A in the dense phase is
rk
CS
z
A
d
Ad dd
=
()
ρε
(4.230)
As the dense phase in contact with the bubble phase is assumed to have attained steady
state
rr
A
b
A
d
=
and equating Equations 4.229 and 4.230, we get
ka CC
kC
gb Ab Ad dd Ad
()()−=ρε
(4.231)
Solving Equation 4.231 for C
Ad
, we get
C
kaC
ka k
Ad
gb Ab
gb dd
=
+
()
ρε
(4.232)
Substituting Equation 4.232 for C
Ad
in Equation 4.230, we get the overall global rate of
transfer of A from the bubble phase to the dense phase in the section as
r
C
ka k
sdz
A
Ab
gb dd
=
+[( )( )]
()
11//ρε
(4.233)
Taking a molal balance of A in the bubble phase across the section, we get ...
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Publisher Resources

ISBN: 9781466558830