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A plant must distill a mixture containing 75 mole percent methanol and 25 percent water. The overhead product is to contain >95 mole percent methanol and the bottom product <2% mole percent. The feed is cold, and for each mole of feed 0.15 mole of vapor is condensed at the feed plate. The reflux ratio is 1.4, and the reflux is at its bubble point. Equilibrium data for the methanol-water system is provided below. Calculate: 1. The minimum number of plates using a reboiler and a total condenser. 2. The minimum reflux ratio. 3. The number of plates using an average Murphree plate efficiency of 75 percent. 4. The number of plates using a reboiler and a partial condenser operating with the reflux in equilibrium with the vapor going to a final condenser. Equilibrium data for methanol-water system X y 0.1 0.417 0.2 0.579 0.3 0.4 0.669 0.729 0.5 0.780 0.6 0.7 0.8 0.9 1.0 0.825 0.871 0.915 0.959 1.0

A plant must distill a mixture containing 75 mole percent methanol and 25 percent water. The overhead product is to contain >95 mole percent methanol and the bottom product <2% mole percent. The feed is cold, and for each mole of feed 0.15 mole of vapor is condensed at the feed plate. The reflux ratio is 1.4, and the reflux is at its bubble point. Equilibrium data for the methanol-water system is provided below. Calculate: 1. The minimum number of plates using a reboiler and a total condenser. 2. The minimum reflux ratio. 3. The number of plates using an average Murphree plate efficiency of 75 percent. 4. The number of plates using a reboiler and a partial condenser operating with the reflux in equilibrium with the vapor going to a final condenser. Equilibrium data for methanol-water system X y 0.1 0.417 0.2 0.579 0.3 0.4 0.669 0.729 0.5 0.780 0.6 0.7 0.8 0.9 1.0 0.825 0.871 0.915 0.959 1.0

Introduction to Chemical Engineering Thermodynamics
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
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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A plant must distill a mixture containing 75 mole percent methanol and 25 percent water. The overhead product is to contain >95 mole percent methanol and the bottom product <2% mole percent. The feed is cold, and for each mole of feed 0.15 mole of vapor is condensed at the feed plate. The reflux ratio is 1.4, and the reflux is at its bubble point. Equilibrium data for the methanol-water system is provided below. Calculate: 1. The minimum number of plates using a reboiler and a total condenser. 2. The minimum reflux ratio. 3. The number of plates using an average Murphree plate efficiency of 75 percent. 4. The number of plates using a reboiler and a partial condenser operating with the reflux in equilibrium with the vapor going to a final condenser. Equilibrium data for methanol-water system X y 0.1 0.417 0.2 0.579 0.3 0.4 0.669 0.729 0.5 0.780 0.6 0.7 0.8 0.9 1.0 0.825 0.871 0.915 0.959 1.0
Transcribed Image Text:A plant must distill a mixture containing 75 mole percent methanol and 25 percent water. The overhead product is to contain >95 mole percent methanol and the bottom product <2% mole percent. The feed is cold, and for each mole of feed 0.15 mole of vapor is condensed at the feed plate. The reflux ratio is 1.4, and the reflux is at its bubble point. Equilibrium data for the methanol-water system is provided below. Calculate: 1. The minimum number of plates using a reboiler and a total condenser. 2. The minimum reflux ratio. 3. The number of plates using an average Murphree plate efficiency of 75 percent. 4. The number of plates using a reboiler and a partial condenser operating with the reflux in equilibrium with the vapor going to a final condenser. Equilibrium data for methanol-water system X y 0.1 0.417 0.2 0.579 0.3 0.4 0.669 0.729 0.5 0.780 0.6 0.7 0.8 0.9 1.0 0.825 0.871 0.915 0.959 1.0
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