Environmental Engineering Reference
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Oil and spices phase
O
il and spices
Mixture: oil,
vinegar &
spices
Shake
Settle
Vinegar
Vinegar and spices phase
Mixing
F
Equilibrium
Figure 3.26
Salad dressing recipe, Example 3.5.
Pure vinegar
y
A
i
V
i
y
A
o
Tie-line
V
o
F
O
o
O
i
Pure oil
Pure spices
x
A
o
z
A
o
x
A
i
Figure 3.27
Oil, vinegar, and spices phase diagram, Example 3.5.
3.6
Binary feed mixtures
Referring to the generic separation schematic (Figure 3.28), assume that it represents a
single stage of an equilibrium-based process for the separation of a binary feed mixture.
The assumption of equilibrium has two effects. First, the details of the flow and/or
concentrations within the stage are not of interest.
Second, streams
L
and
V
(exiting
Control
volume
V
,
y
1
x
0
F
,
L
,
x
1
Figure 3.28
Generic binary feed separation stage for an equilibrium-based process.
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