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Q1// A liquid mixture of benzene-toluene is to be distilled in a fractionating tower. The feed of 200 kg mol/h is liquid and it contains 40 mol % benzene and 60 mol % toluene. A distillate containing 90 mol % benzene and a bottoms containing 10 mol % benzene. The reflux ratio is 4. The average heat capacity of the feed is 159 kJ/kg mol.K, the boiling point of the feed is 93°C and the average latent heat 32099 kJ/kg mol. Equilibrium data for this system are given in table below: ХА 1 0.78 0.13 0 0.58 0.41 0.258 0.777 0.632 0.456 YA 1 0.9 0.26 0 Calculate: 1- The flow rate of distillate and bottoms stream. 2- The number of plates required if the feed inlet at 325 k. 3- If the feed inlet at 366 k, What is the number of feed introducing tray from top. 4- Minimum number of theoretical plates at total reflux (Graphically). 5- Minimum reflux ratio (Rm), if average

Q1// A liquid mixture of benzene-toluene is to be distilled in a fractionating tower. The feed of 200 kg mol/h is liquid and it contains 40 mol % benzene and 60 mol % toluene. A distillate containing 90 mol % benzene and a bottoms containing 10 mol % benzene. The reflux ratio is 4. The average heat capacity of the feed is 159 kJ/kg mol.K, the boiling point of the feed is 93°C and the average latent heat 32099 kJ/kg mol. Equilibrium data for this system are given in table below: ХА 1 0.78 0.13 0 0.58 0.41 0.258 0.777 0.632 0.456 YA 1 0.9 0.26 0 Calculate: 1- The flow rate of distillate and bottoms stream. 2- The number of plates required if the feed inlet at 325 k. 3- If the feed inlet at 366 k, What is the number of feed introducing tray from top. 4- Minimum number of theoretical plates at total reflux (Graphically). 5- Minimum reflux ratio (Rm), if average

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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Q1// A liquid mixture of benzene-toluene is to be distilled in a fractionating tower. The feed of 200 kg mol/h is liquid and it contains 40 mol % benzene and 60 mol % toluene. A distillate containing 90 mol % benzene and a bottoms containing 10 mol % benzene. The reflux ratio is 4. The average heat capacity of the feed is 159 kJ/kg mol.K, the boiling point of the feed is 93°C and the average latent heat 32099 kJ/kg mol. Equilibrium data for this system are given in table below: XA 1 0.78 0.13 0 0.58 0.41 0.258 0.777 0.632 0.456 YA 1 0.9 0.26 0 Calculate: 1- The flow rate of distillate and bottoms stream. 2- The number of plates required if the feed inlet at 325 k. 3- If the feed inlet at 366 k, What is the number of feed introducing tray from top. 4- Minimum number of theoretical plates at total reflux (Graphically). 5- Minimum reflux ratio (Rm), if average=2.4.
Transcribed Image Text:Q1// A liquid mixture of benzene-toluene is to be distilled in a fractionating tower. The feed of 200 kg mol/h is liquid and it contains 40 mol % benzene and 60 mol % toluene. A distillate containing 90 mol % benzene and a bottoms containing 10 mol % benzene. The reflux ratio is 4. The average heat capacity of the feed is 159 kJ/kg mol.K, the boiling point of the feed is 93°C and the average latent heat 32099 kJ/kg mol. Equilibrium data for this system are given in table below: XA 1 0.78 0.13 0 0.58 0.41 0.258 0.777 0.632 0.456 YA 1 0.9 0.26 0 Calculate: 1- The flow rate of distillate and bottoms stream. 2- The number of plates required if the feed inlet at 325 k. 3- If the feed inlet at 366 k, What is the number of feed introducing tray from top. 4- Minimum number of theoretical plates at total reflux (Graphically). 5- Minimum reflux ratio (Rm), if average=2.4.
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