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PROBLEM 1 A mixture of dichloromethane (1) and ethyl acetate (2) and is separated in a flash drum at 1 bar. a. Feed rate is 150 kmol/h. Feed enters at 27 mol % dichloromethane and 36% of the feed is vaporized. What are the flowrates and composition of the vapor and liquid fractions? b. Feed rate is 750 lbmol/h. Feed is 20 mol % dichloromethane and a liquid product of 13 mol% dichloromethane is desired. What V/F must be used? Find product flow rates and composition. c. Feed rate is 200 lbmol/h. Feed is 79 mol % dichloromethane and a vapor product of 6 mol% ethyl acetate is desired. What V/F must be used? Find product flow rates and composition.

PROBLEM 1 A mixture of dichloromethane (1) and ethyl acetate (2) and is separated in a flash drum at 1 bar. a. Feed rate is 150 kmol/h. Feed enters at 27 mol % dichloromethane and 36% of the feed is vaporized. What are the flowrates and composition of the vapor and liquid fractions? b. Feed rate is 750 lbmol/h. Feed is 20 mol % dichloromethane and a liquid product of 13 mol% dichloromethane is desired. What V/F must be used? Find product flow rates and composition. c. Feed rate is 200 lbmol/h. Feed is 79 mol % dichloromethane and a vapor product of 6 mol% ethyl acetate is desired. What V/F must be used? Find product flow rates and composition.

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
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PROBLEM 1 A mixture of dichloromethane (1) and ethyl acetate (2) and is separated in a flash drum at 1 bar. a. Feed rate is 150 kmol/h. Feed enters at 27 mol % dichloromethane and 36% of the feed is vaporized. What are the flowrates and composition of the vapor and liquid fractions? b. Feed rate is 750 lbmol/h. Feed is 20 mol% dichloromethane and a liquid product of 13 mol% dichloromethane is desired. What V/F must be used? Find product flow rates and composition. c. Feed rate is 200 lbmol/h. Feed is 79 mol% dichloromethane and a vapor product of 6 mol % ethyl acetate is desired. What V/F must be used? Find product flow rates and composition. d. The flash drum is operated such that the liquid mole fraction is 33 mol % dichloromethane, liquid product rate is 500 kmol/h, and 19.5% of the feed is vaporized. What must the feed flowrate and composition of the feed be? e. The flash drum is operated such that the vapor mole fraction is 81 mol % dichloromethane, vapor product rate is 1750 kmol/h, and 70 % of the feed is vaporized. What must the feed flowrate and composition of the feed be? f. The feed composition is 35 mol % and the drum temperature is 67 °C. Find the fraction of feed vaporized and the composition of the liquid and vapor products. The equilibrium data for ethyl acetate (1)/dichloromethane (2) is given (see page 2).
Transcribed Image Text:PROBLEM 1 A mixture of dichloromethane (1) and ethyl acetate (2) and is separated in a flash drum at 1 bar. a. Feed rate is 150 kmol/h. Feed enters at 27 mol % dichloromethane and 36% of the feed is vaporized. What are the flowrates and composition of the vapor and liquid fractions? b. Feed rate is 750 lbmol/h. Feed is 20 mol% dichloromethane and a liquid product of 13 mol% dichloromethane is desired. What V/F must be used? Find product flow rates and composition. c. Feed rate is 200 lbmol/h. Feed is 79 mol% dichloromethane and a vapor product of 6 mol % ethyl acetate is desired. What V/F must be used? Find product flow rates and composition. d. The flash drum is operated such that the liquid mole fraction is 33 mol % dichloromethane, liquid product rate is 500 kmol/h, and 19.5% of the feed is vaporized. What must the feed flowrate and composition of the feed be? e. The flash drum is operated such that the vapor mole fraction is 81 mol % dichloromethane, vapor product rate is 1750 kmol/h, and 70 % of the feed is vaporized. What must the feed flowrate and composition of the feed be? f. The feed composition is 35 mol % and the drum temperature is 67 °C. Find the fraction of feed vaporized and the composition of the liquid and vapor products. The equilibrium data for ethyl acetate (1)/dichloromethane (2) is given (see page 2).
y (Dichloromethane), mol. frac. T (°C) 1.0 09 0.8 0.7 0.6 0.5 04 02 0.1 0.0 75 70 66 60 56 50 45 40 35 00 0.0 Dichloromethane/Ethyl Acetate 0.1 0.2 0.3 04 05 0.1 07 0.8 0.9 1.0 x (Dichloromethane), mol. frac. Txy Plot for Dichloromethane/Ethyl Acetate -x-y 0.2 0.3 0.4 0.5 06 0.7 0.8 0.9 1.0 x, y (Dichloromethane), mol.frac.
Transcribed Image Text:y (Dichloromethane), mol. frac. T (°C) 1.0 09 0.8 0.7 0.6 0.5 04 02 0.1 0.0 75 70 66 60 56 50 45 40 35 00 0.0 Dichloromethane/Ethyl Acetate 0.1 0.2 0.3 04 05 0.1 07 0.8 0.9 1.0 x (Dichloromethane), mol. frac. Txy Plot for Dichloromethane/Ethyl Acetate -x-y 0.2 0.3 0.4 0.5 06 0.7 0.8 0.9 1.0 x, y (Dichloromethane), mol.frac.
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PROBLEM 1 A mixture of dichloromethane (1) and ethyl acetate (2) and is separated in a flash drum at 1 bar. a. Feed rate is 150 kmol/h. Feed enters at 27 mol % dichloromethane and 36% of the feed is vaporized. What are the flowrates and composition of the vapor and liquid fractions? b. Feed rate is 750 lbmol/h. Feed is 20 mol% dichloromethane and a liquid product of 13 mol% dichloromethane is desired. What V/F must be used? Find product flow rates and composition. c. Feed rate is 200 lbmol/h. Feed is 79 mol% dichloromethane and a vapor product of 6 mol % ethyl acetate is desired. What V/F must be used? Find product flow rates and composition. d. The flash drum is operated such that the liquid mole fraction is 33 mol % dichloromethane, liquid product rate is 500 kmol/h, and 19.5% of the feed is vaporized. What must the feed flowrate and composition of the feed be? e. The flash drum is operated such that the vapor mole fraction is 81 mol % dichloromethane, vapor product rate is 1750 kmol/h, and 70 % of the feed is vaporized. What must the feed flowrate and composition of the feed be? f. The feed composition is 35 mol % and the drum temperature is 67 °C. Find the fraction of feed vaporized and the composition of the liquid and vapor products. The equilibrium data for ethyl acetate (1)/dichloromethane (2) is given (see page 2).
Transcribed Image Text:PROBLEM 1 A mixture of dichloromethane (1) and ethyl acetate (2) and is separated in a flash drum at 1 bar. a. Feed rate is 150 kmol/h. Feed enters at 27 mol % dichloromethane and 36% of the feed is vaporized. What are the flowrates and composition of the vapor and liquid fractions? b. Feed rate is 750 lbmol/h. Feed is 20 mol% dichloromethane and a liquid product of 13 mol% dichloromethane is desired. What V/F must be used? Find product flow rates and composition. c. Feed rate is 200 lbmol/h. Feed is 79 mol% dichloromethane and a vapor product of 6 mol % ethyl acetate is desired. What V/F must be used? Find product flow rates and composition. d. The flash drum is operated such that the liquid mole fraction is 33 mol % dichloromethane, liquid product rate is 500 kmol/h, and 19.5% of the feed is vaporized. What must the feed flowrate and composition of the feed be? e. The flash drum is operated such that the vapor mole fraction is 81 mol % dichloromethane, vapor product rate is 1750 kmol/h, and 70 % of the feed is vaporized. What must the feed flowrate and composition of the feed be? f. The feed composition is 35 mol % and the drum temperature is 67 °C. Find the fraction of feed vaporized and the composition of the liquid and vapor products. The equilibrium data for ethyl acetate (1)/dichloromethane (2) is given (see page 2).
y (Dichloromethane), mol. frac. T (°C) 1.0 09 0.8 0.7 0.6 0.5 04 02 0.1 0.0 75 70 66 60 56 50 45 40 35 00 0.0 Dichloromethane/Ethyl Acetate 0.1 0.2 0.3 04 05 0.1 07 0.8 0.9 1.0 x (Dichloromethane), mol. frac. Txy Plot for Dichloromethane/Ethyl Acetate -x-y 0.2 0.3 0.4 0.5 06 0.7 0.8 0.9 1.0 x, y (Dichloromethane), mol.frac.
Transcribed Image Text:y (Dichloromethane), mol. frac. T (°C) 1.0 09 0.8 0.7 0.6 0.5 04 02 0.1 0.0 75 70 66 60 56 50 45 40 35 00 0.0 Dichloromethane/Ethyl Acetate 0.1 0.2 0.3 04 05 0.1 07 0.8 0.9 1.0 x (Dichloromethane), mol. frac. Txy Plot for Dichloromethane/Ethyl Acetate -x-y 0.2 0.3 0.4 0.5 06 0.7 0.8 0.9 1.0 x, y (Dichloromethane), mol.frac.
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