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A solution containing 50 weight % methanol and remaining water at 300 K is admitted to a distillation column at a rate 5000 kg/h as a mixture of liquid vapor mixture with liquid content 50 % liquid after being preheated by heat exchange with the residue leaving the tower. The overhead product should contain 95 weight% methanol and the bottom product contains 3 weight% methanol. The distillate is to be totally condensed to a liquid and the reflux returned at the bubble point. The reflux ratio used is 1.5 times the minimum. Equilibrium data ( mole fraction) is as follows: T,K 373.2 360.9 354.9 351.2 348.5 346.3 344.4 342.5 340.8 339.2 337.7 1. 1. 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 y 0.417 0.579 0.669 0.729 0.78 0.825 0.871 0.915 0.959 Determine: 1) The minimum reflux ratio 2) The minimum number of theoretical trays

A solution containing 50 weight % methanol and remaining water at 300 K is admitted to a distillation column at a rate 5000 kg/h as a mixture of liquid vapor mixture with liquid content 50 % liquid after being preheated by heat exchange with the residue leaving the tower. The overhead product should contain 95 weight% methanol and the bottom product contains 3 weight% methanol. The distillate is to be totally condensed to a liquid and the reflux returned at the bubble point. The reflux ratio used is 1.5 times the minimum. Equilibrium data ( mole fraction) is as follows: T,K 373.2 360.9 354.9 351.2 348.5 346.3 344.4 342.5 340.8 339.2 337.7 1. 1. 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 y 0.417 0.579 0.669 0.729 0.78 0.825 0.871 0.915 0.959 Determine: 1) The minimum reflux ratio 2) The minimum number of theoretical trays

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
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A solution containing 50 weight % methanol and remaining water at 300 K is admitted to a distillation column at a rate 5000 kg/h as a mixture of liquid vapor mixture with liquid content 50 % liquid after being preheated by heat exchange with the residue leaving the tower. The overhead product should contain 95 weight% methanol and the bottom product contains 3 weight% methanol. The distillate is to be totally condensed to a liquid and the reflux returned at the bubble point. The reflux ratio used is 1.5 times the minimum. Equilibrium data ( mole fraction) is as follows: T.K 373.2 360.9 354.9 351.2 348.5 346.3 344.4 342.5 340.8 339.2 337.7 0.1 0.417 0.579 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 y 0.669 0.729 0.78 0.825 0.871 0.915 0.959 1 Determine: 1) The minimum reflux ratio 2) The minimum number of theoretical trays
Transcribed Image Text:A solution containing 50 weight % methanol and remaining water at 300 K is admitted to a distillation column at a rate 5000 kg/h as a mixture of liquid vapor mixture with liquid content 50 % liquid after being preheated by heat exchange with the residue leaving the tower. The overhead product should contain 95 weight% methanol and the bottom product contains 3 weight% methanol. The distillate is to be totally condensed to a liquid and the reflux returned at the bubble point. The reflux ratio used is 1.5 times the minimum. Equilibrium data ( mole fraction) is as follows: T.K 373.2 360.9 354.9 351.2 348.5 346.3 344.4 342.5 340.8 339.2 337.7 0.1 0.417 0.579 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 y 0.669 0.729 0.78 0.825 0.871 0.915 0.959 1 Determine: 1) The minimum reflux ratio 2) The minimum number of theoretical trays
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