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

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E. More Complex Problems

E1. We are doing RO of dilute aqueous sucrose solutions at 25°C. A feed that is 2.2 wt % sucrose is separated in a very well-stirred system (M = 1.0) with pr = 60.0 atm and pp = 1.1 atm. We measure the flux as Image when xp = 0.00032 and xr,out = 0.056.

a. Calculate the cut θ′, the inherent rejection R°, and the sucrose flux Image.

b. Calculate the selectivity Image, , and .

c. If we now repeat the experiment with less mixing so that M = ...

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