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Separation Process Engineering: Includes Mass Transfer Analysis, Third Edition by Phillip C. Wankat

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F. Problems Requiring Other Resources

F1.* Benzene-toluene equilibrium is often approximated as αBT = 2.5. Generate the y-x diagram for this relative volatility. Compare your results with data in the literature (see references in Table 2-2). Also, generate the equilibrium data using Raoult’s law, and compare your results to these.

F2. Ethylene glycol and water are flash distilled in a cascade of three stills connected as shown in the figure. All stills operate at 228 mm Hg. Feed is 40 mol% water. One-third of the feed is vaporized in the first still, two-thirds of the feed to the second still is vaporized, and one-half the feed to the third still is vaporized. What are the compositions of streams L3 and V3? Note that water is the more volatile ...

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