A distillation column with a partial reboiler and a total condenser is being used to separate a Xmixture of Propane (1), Propylene (2) , and Butylene (3). The feed is 30.0% mole Propane, 30.0% mole Propylene and 40.0% mole Butylene. The feed is input as a saturated vapor. We desire 94.00% recovery of the Propylene in the bottoms and 98.50% recovery of the Propane in the distillate. The reflux is returned as a saturated liquid, and CMO can be assumed. Equilibrium can be represented as constant relative volatilities. Choosing Propylene (2) as the reference component, a12 = 1.48 and a32 = 0.65. Use a basis of 100 moles of feed/h. Use a %3D basis of 100 moles of feed/h. Assuming this system has a class II pinch possible roots (O) have been determined as 0.9321, 1.2962 and 1.5424. Find the minimum reflux ratio, Rmin:

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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Answer: 6.395

A distillation column with a partial reboiler and a total condenser is being used to separate a
X mixture of Propane (1), Propylene (2) , and Butylene (3). The feed is 30.0% mole Propane,
30.0% mole Propylene and 40.0% mole Butylene. The feed is input as a saturated vapor. We
desire 94.00% recovery of the Propylene in the bottoms and 98.50% recovery of the Propane in
the distillate. The reflux is returned as a saturated liquid, and CMO can be assumed.
Equilibrium can be represented as constant relative volatilities. Choosing Propylene (2) as the
reference component, a12 = 1.48 and a32 = 0.65. Use a basis of 100 moles of feed/h. Use a
%3D
basis of 100 moles of feed/h. Assuming this system has a class II pinch possible roots (O) have
been determined as 0.9321, 1.2962 and 1.5424. Find the minimum reflux ratio, Rmin:
Transcribed Image Text:A distillation column with a partial reboiler and a total condenser is being used to separate a X mixture of Propane (1), Propylene (2) , and Butylene (3). The feed is 30.0% mole Propane, 30.0% mole Propylene and 40.0% mole Butylene. The feed is input as a saturated vapor. We desire 94.00% recovery of the Propylene in the bottoms and 98.50% recovery of the Propane in the distillate. The reflux is returned as a saturated liquid, and CMO can be assumed. Equilibrium can be represented as constant relative volatilities. Choosing Propylene (2) as the reference component, a12 = 1.48 and a32 = 0.65. Use a basis of 100 moles of feed/h. Use a %3D basis of 100 moles of feed/h. Assuming this system has a class II pinch possible roots (O) have been determined as 0.9321, 1.2962 and 1.5424. Find the minimum reflux ratio, Rmin:
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