VLE data for water and n-butanol are given in Table 8-5. We have flash distillation systems separating \(100.0 \mathrm{kmol} / \mathrm{h}\) of two different water and \(\mathrm{n}-\) butanol mixtures.

a. The feed is \(20.0 \mathrm{~mol} \%\) water, and the vapor product is \(40.0 \mathrm{~mol} \%\) water. Find \(\mathrm{L}, \mathrm{x}, \mathrm{V}\), and \(\mathrm{T}_{\text {drum. }}\).

b. The feed is \(99.0 \mathrm{~mol} \%\) water, and \(30.0 \%\) of the feed is vaporized. Find \(\mathrm{L}, \mathrm{x}, \mathrm{V}, \mathrm{y}\), and \(\mathrm{T}_{\text {drum }}\).

Transcribed Image Text:

TABLE 8-5. VLE data for water and n-butanol at 1.0 atm mol% water Liquid Vapor TC Liquid Vapor TC 0.0 0.0 117.0 57.3 75.0 92.8 3.9 26.7 111.5 97.5 75.2 92.7 4.7 29.9 110.6 98.0 75.6 93.0 5.5 32.3 109.6 98.2 75.8 92.8 7.0 35.2 108.8 98.5 77.5 93.4 25.7 62.9 97.9 98.6 78.4 93.4 27.5 64.1 97.2 98.8 80.8 93.7 29.2 65.5 96.7 99.2 84.3 95.4 30.5 66.2 96.3 99.4 88.4 96.8 49.6 73.6 93.5 99.7 92.9 98.3 50.6 74.0 93.4 99.8 95.1 98.4 55.2 75.0 92.9 99.9 98.1 99.4 56.4 75.2 92.9 100.0 100.0 100.0 57.1 _ 74.8 92.9