A distillation is designed to separate ethanol and water continously.The feed contains 40% mole of methanol and 60%mole of water and its saturated liquid.The pressure is 101.3kpa.For which the binary equilibrium data are
X =2.0 6.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 95.0
Y =13.4 30.4 41.8 57.9 66.5 72.9 77.9 82.5 87.0 91.5 95.3 97.9
The feed is to be introduced at optimal location for minimum stage, 95% for methanol is to be recovered in a liquid distillate containing 98% methanol.The reflux is to be a saturated liquid with a flow rate of 1.25times the minimum reflux rate which is corresponding infinite stages. Assuming constant molar overflow.Find
a. the no of equilibrium stages required in the column
b.no of plates required for the Distillation column given that the overall column efficiency is 75%.
c. locate the plate where the feed has to be introduced into the column.
The separation will take eight equilibrium stages and five number of plates for distillation. feed will be introduced on the fifth plate from the top.
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