Determine the number of theoretical stages required and the optimal-stage locations for the feed and liquid side
Question:
Determine the number of theoretical stages required and the optimal-stage locations for the feed and liquid side stream for the distillation process shown in Figure 7.43 assuming that methanol (M) and ethanol (E) form an ideal solution.
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Distillate 96 mol% M L/D = 1.2 (L/D) min 25 mol% vaporized 1 atm kgmol/h 75 15 kgmol/h 80 mol% E Liquid side stream 25 100 Bottoms 95 mol% E Figure 7.43 Data for Exercise 7.36.
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First compute the material balance Overall total material balance F 100 D B S D B 15 1 Overall methanol material balance 75 096D 005B 02015 2 Solving Eqs 1 and 2 D 7445 kmolh and B 1055 kmolh Now dete...View the full answer
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