An air-acetone mixture containing 6 mol% acetone by volume is to be washed with water in a counter-current plate tower to recover 95% acetone. The air rate will be 58.23 kmole of pure air per hour at standard conditions and the water rate will be 3000 kg/hr. The tower will operate at 20°C and 1 atm pressure. Under the operating condition, the equilibrium relation may be expressed as Y* = 1.68X, where X and Y are moles of acetone per mole of acetone free water and air respectively. Determine the number of theoretical plates required for the purpose using graphical method.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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An air-acetone mixture containing 6 mol% acetone by volume is to be washed
with water in a counter-current plate tower to recover 95% acetone. The air rate
will be 58.23 kmole of pure air per hour at standard conditions and the water
rate will be 3000 kg/hr. The tower will operate at 20°C and 1 atm pressure.
Under the operating condition, the equilibrium relation may be expressed as Y*
1.68X, where X and Y are moles of acetone per mole of acetone free water
%3D
and air respectively. Determine the number of theoretical plates required for the
purpose using graphical method.
Transcribed Image Text:An air-acetone mixture containing 6 mol% acetone by volume is to be washed with water in a counter-current plate tower to recover 95% acetone. The air rate will be 58.23 kmole of pure air per hour at standard conditions and the water rate will be 3000 kg/hr. The tower will operate at 20°C and 1 atm pressure. Under the operating condition, the equilibrium relation may be expressed as Y* 1.68X, where X and Y are moles of acetone per mole of acetone free water %3D and air respectively. Determine the number of theoretical plates required for the purpose using graphical method.
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