A saturated-liquid feed of 40 mol% n-hexane (H) and 60 mol% n-octane is to be separated into

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A saturated-liquid feed of 40 mol% n-hexane (H) and 60 mol% n-octane is to be separated into a distillate of 95 mol% H and a bottoms of 5 mol% H. The reflux ratio L / D is 0.5, and a cooling coil submerged in the liquid of the second plate from the top removes sufficient heat to condense 50 mol% of the vapor rising from the third plate down from the top. The x–y data of Figure 7.37 may be used. 

(a) Derive the equations needed to locate the operating lines.

(b) Locate the operating lines and determine the required number of theoretical plates if the optimal feed plate location is used.

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Separation Process Principles Chemical And Biochemical Principles

ISBN: 9780470481837

3rd Edition

Authors: By J. D. Seader, Ernest J. Henley, D. Keith Roper

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