Transcription of Example 9–5. Distillation of Benzene, Toluene, and Xylene
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Example 9–5. Distillation of Benzene, Toluene, and Xylene
LECTURE 9. Solving Material Balance Problems Involving Non-Reactive ProcessesProf. Manolito E Bambase Jr. Department of Chemical Engineering. University of the Philippines Los Ba os SLIDE1 Example 9 5. Distillation of Benzene, toluene , and XyleneA liquid mixture containing mole% benzene (B), toluene (T), and the balance Xylene (X) is fed to a Distillation column. The bottom product contains mole% X and no B, and of the X in the feed is recovered in this stream. The overhead product is fed to a second Distillation overhead product from the second column contains of the B in the feed to this column. The composition of this stream is mole% B and the balance 9. Solving Material Balance Problems Involving Non-Reactive ProcessesProf. Manolito E Bambase Jr. Department of Chemical Engineering. University of the Philippines Los Ba os SLIDE2 Example 9 5. Distillation of Benzene, toluene , and XyleneCalculate percentage of the benzene in the process feed ( the feed to the first column) that emerges in the overhead product from the second percentage of toluene in the process feed that emerges in the bottom product from the second column.
14 Example 9–5. Distillation of Benzene, Toluene, and Xylene DEGREES OF FREEDOM ANALYSIS Unit: Reboiler unknowns (n 2,n 3,n 4,y B2,y B3,y B4) +6 material balances –2 45 % vaporization –1 mole fraction relationship –1 Degrees of freedom +2
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