Answer to Question #289958 in Chemical Engineering for Potti

Question

A mixture of benzene and toluene containing 40 mole % benzene is to be separated continuously in a tray tower at a rate of 200 kmol/h. the top product should have 95 mole% of benzene and the bottom must contain more than 4 mole% of it. the reflux is a saturated liquid and a reflux ratio of 2.0 is maintained. the feed is a saturated liquid (i.e. it is at its bubble point)

a.obtain and plot the operating lines for the rectifying and the stripping sections on the x-y plane.

b.What is the boil-up ratio?

The vapour-liquid equilibrium data at the operating pressure of 101.3 kPa are given below.

X 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

Y. 0 0.21 0.38 0.511 0.627 0.719 0.79 0.853 0.91 0.961 1.0

Answer 1

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