A column flash distillation (Figure 4-24) with three stages is processing a feed with (10.0 mathrm{~mol} %)

Question:

A column flash distillation (Figure 4-24) with three stages is processing a feed with \(10.0 \mathrm{~mol} \%\) methane, \(12.0 \mathrm{~mol} \%\) n-butane, \(33.0 \mathrm{~mol} \% \mathrm{n}\) pentane, \(25.0 \mathrm{~mol} \% \mathrm{n}\)-hexane, \(15.0 \mathrm{~mol} \% \mathrm{n}\)-heptane, and \(5.0 \mathrm{~mol} \% \mathrm{n}-\) octane. Streams \(\mathrm{F}_{\mathrm{V}}\) and \(\mathrm{F}_{\mathrm{L}}\) are both \(80.0 \mathrm{kmol} / \mathrm{h}\). Both feeds and the column are at 10.0 bar. Stream \(\mathrm{F}_{\mathrm{V}}\) is a saturated vapor, and stream \(\mathrm{F}_{\mathrm{L}}\) is \(95 \%\) liquid and \(5 \%\) vapor. Find the feed and product temperatures, the product flow rates, and the mole fractions of the distillate and bottoms products. Note: In the block statement for RadFrac, set Condenser = none and Reboiler \(=\) none.

Figure 4-24

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