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Determine the following: a) Composition and amounts of the distillate and bottoms streams for a feed stream of 1000 mole/hr. b) Top and bottom temperatures and the number of stages at total reflux. c) The distribution of components at the conditions determined in part (b). d) The minimum reflux ratio, and number of stages when R-8.0. e) The feed tray location.

Determine the following: a) Composition and amounts of the distillate and bottoms streams for a feed stream of 1000 mole/hr. b) Top and bottom temperatures and the number of stages at total reflux. c) The distribution of components at the conditions determined in part (b). d) The minimum reflux ratio, and number of stages when R-8.0. e) The feed tray location.

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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LK MeOH HK EtOH n-POH n-BOH Z₁ 0.20 0.25 0.2 0.35 f; 200 250 200 350 1000.0 Use operating R 8.00 R/(R+1) 0.8889 Rmin/(Rmin+1) 0.8350 Rmin/(Rmin+1) 0.8297 Kirkbride (Feed stage) Relative Volatilities Curve-fit a 0.490 0.218 Antoine a 0.494 0.226 Nr/Ns Nr Ns d₁ 241.0 21.0 0.053 1.2E-04 262.0 d₁ 241.0 21.0 0.074 2.9E-04 262.0 b; -41.0 229.0 199.947 350.0 738.0 1.11469506 6.853 6.147 b₁ -41.0 229.0 199.926 350.0 738.0 Nmin Curve-fit 8.201 Antoine 7.818 7 7 14 Yi 0.92 0.08 2.0E-04 4.6E-07 Yi 0.92 0.08 2.8E-04 1.1E-06 q N X; -0.06 0.31 0.27 0.47 X; -0.06 0.31 0.27 0.47 1.1 Theta 1.256 Sum 1.078 -0.977 -0.128 -0.074 0.000 Theta 1.2695 Sum 1.031 -0.928 -0.128 -0.076 0.000 X Y (Molokanov) Y (Eduljee) 0.3268 0.3615 0.3521 0.3468 0.3380 0.3475 Rmin 5.059 stages above the feed stages below the feed 4.272 -0.312 0.000 0.000 4.059 N (Molokanov N (Eduljee) 13.41 13.20 12.50 12.32 13 Rmin 4.873 4.070 -0.297 0.000 0.000 3.873
Transcribed Image Text:LK MeOH HK EtOH n-POH n-BOH Z₁ 0.20 0.25 0.2 0.35 f; 200 250 200 350 1000.0 Use operating R 8.00 R/(R+1) 0.8889 Rmin/(Rmin+1) 0.8350 Rmin/(Rmin+1) 0.8297 Kirkbride (Feed stage) Relative Volatilities Curve-fit a 0.490 0.218 Antoine a 0.494 0.226 Nr/Ns Nr Ns d₁ 241.0 21.0 0.053 1.2E-04 262.0 d₁ 241.0 21.0 0.074 2.9E-04 262.0 b; -41.0 229.0 199.947 350.0 738.0 1.11469506 6.853 6.147 b₁ -41.0 229.0 199.926 350.0 738.0 Nmin Curve-fit 8.201 Antoine 7.818 7 7 14 Yi 0.92 0.08 2.0E-04 4.6E-07 Yi 0.92 0.08 2.8E-04 1.1E-06 q N X; -0.06 0.31 0.27 0.47 X; -0.06 0.31 0.27 0.47 1.1 Theta 1.256 Sum 1.078 -0.977 -0.128 -0.074 0.000 Theta 1.2695 Sum 1.031 -0.928 -0.128 -0.076 0.000 X Y (Molokanov) Y (Eduljee) 0.3268 0.3615 0.3521 0.3468 0.3380 0.3475 Rmin 5.059 stages above the feed stages below the feed 4.272 -0.312 0.000 0.000 4.059 N (Molokanov N (Eduljee) 13.41 13.20 12.50 12.32 13 Rmin 4.873 4.070 -0.297 0.000 0.000 3.873
Vaporization of Multicomponent Mixtures T (°C) 50 60 65 70 75 80 85 90 100 Methanol (MeOH) 415 629 767 929 1119 1339 1593 1884 2598 Vapor Pressure (mm Hg) Ethanol (EtOH) 220.0 351.5 438 542 665 812 984 1185 1706 n-Propanol (nPOH) 88.9 148.9 190.1 240.6 301.9 376 465 571 843 n-Butanol (nBOH) 33.7 59.2 77.7 99.6 131.3 165.0 206.1 225.9 387.6 3) Multicomponent Alcohol Distillation An alcohol feed mixture at 101.325kPa (760 mmHg) consisting of 30 % methanol, 20% ethanol, 15% n- propyl alcohol and 35% n-butyl alcohol is distilled so that 92% of the methanol along with a residue of 8% ethanol and other trace components is recovered in the distillate. The feed is below the boiling point, so that q=1.10. The planned operating reflux ratio is 8.0. Assume Raoult's Law applies. The vapor-pressure at 101.325 kPa (760 mm Hg) is available for several alcohols (in a posted MS-EXCEL workbook) Determine the following: a) Composition and amounts of the distillate and bottoms streams for a feed stream of 1000 mole/hr. b) Top and bottom temperatures and the number of stages at total reflux. c) The distribution of components at the conditions determined in part (b). d) The minimum reflux ratio, and number of stages when R=8.0. e) The feed tray location.
Transcribed Image Text:Vaporization of Multicomponent Mixtures T (°C) 50 60 65 70 75 80 85 90 100 Methanol (MeOH) 415 629 767 929 1119 1339 1593 1884 2598 Vapor Pressure (mm Hg) Ethanol (EtOH) 220.0 351.5 438 542 665 812 984 1185 1706 n-Propanol (nPOH) 88.9 148.9 190.1 240.6 301.9 376 465 571 843 n-Butanol (nBOH) 33.7 59.2 77.7 99.6 131.3 165.0 206.1 225.9 387.6 3) Multicomponent Alcohol Distillation An alcohol feed mixture at 101.325kPa (760 mmHg) consisting of 30 % methanol, 20% ethanol, 15% n- propyl alcohol and 35% n-butyl alcohol is distilled so that 92% of the methanol along with a residue of 8% ethanol and other trace components is recovered in the distillate. The feed is below the boiling point, so that q=1.10. The planned operating reflux ratio is 8.0. Assume Raoult's Law applies. The vapor-pressure at 101.325 kPa (760 mm Hg) is available for several alcohols (in a posted MS-EXCEL workbook) Determine the following: a) Composition and amounts of the distillate and bottoms streams for a feed stream of 1000 mole/hr. b) Top and bottom temperatures and the number of stages at total reflux. c) The distribution of components at the conditions determined in part (b). d) The minimum reflux ratio, and number of stages when R=8.0. e) The feed tray location.
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