Homework 5 Problem 6 Azeotropic to Pressure Swing Distillation

Homework 5 Problem 6 Azeotropic to Pressure Swing Distillation

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Homework 5 Problem 6 Azeotropic to Pressure Swing Distillation 60 points possible due Friday September 30, 2011 Grader: Israel Problem Statement: Read the article “Control of the Maximum Boiling Acetone/Chloroform Azeotropic study controlling the maximum boiling azeotropes is discussed. The authors used an azeotropic distillation sequence to separate acetone and chloroform. These components can also be separated used pressure swing distillation. Using the UNIQUAC property package, design a pressure swing distillation column sequence to provide for pure acetone and pure chloroform product streams for a process having a fresh 100 kmol/hr feed stream at 320 K with 10 mole% acetone. Use
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Unformatted text preview: column pressures with azeotropes occurring at 337.6 K and 429.6 K. 1. Show a schematic of the sequence similar to that given in Figure 8.36 on page 235 of the Seider course textbook. (The solution to this problem may not be the same as figure 8.36. You must determine the distillation products, mole fractions of each stream, and flowrates of the internal and external streams.) 2. Identify the operating pressures of the columns; justified with a thermodynamic diagram similar to Figure 8.36a and 3. Discuss the compositions of the distillate and the bottoms streams for each column. (Flowrates are not necessary.) DO NOT SIMULATE THE PROCESS!...
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