Page 164 - Separation process engineering
P. 164
stages.
D. Do It. Feed Line: To find q, first convert feed concentration, 20 mol%, to wt % ethanol = 39 wt
%. Two calculations in different units with different data are shown.
Thus small differences caused by pressure differences in the diagrams do not change the value of q.
Note that molecular weight terms divide out as in Example 4-2d. Then
Feed line intersects y=x line at feed concentration z=0.2. Feed line is plotted in Figure 4-13.
Figure 4-13. Solution for Example 4-3
Top Operating Line: