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Q: - Make Material and energy balance to calculate the following: 1- The amount of overhead and bottom product 2- The flow rate of cooling water and steam used in such process. 2000Kg/hr of a liquid binary mixture (F) composed of 20wt% acetone and 80wt% water, are continuously feed to the distillation column at 25°C. The column operates at (1atm) with top product (D) contains 98wt% acetone and a bottom product (W) contains 99.5wt% water. The vapor (V) leaving the column enters a condenser where it is condensate and cooled to 45 °C and then divided to atop product and recycle stream (R) with reflux ratio of 2.5 Kg reflux/1 Kg product. The cooling water used in the condenser enters at 25°C and leaves at 40 C. Heat is supplied to the reboiler using dry saturated steam which enters at 40 psia and 130 "C and leaves as saturated liquid only and not subcooled. The bottom product (W) leaves the reboiler at 100°C .It can be satisfactory to use the physical properties of acetone for top product and that of water for bottom product throughout calculations 1) Make material balance calculations to estimate the mass flow rate Kg/hr of steam and cooling water used in such process Given that:- boiling point of acetone at 1 atm = 56.5 °C. Boiling point of water at 1 atm = 100 °C CPm of acetone =2.2 KJ/KgºC CPm of liquid water=4.2 KJ/Kg°C AH = 1 = h, of acetone at 56.5 °C and 1 atm= 520 KJ/Kg AH, = 1 = h, of water at 100 °C and 1 atm=2257 KJ/Kg AH = 1= h. of water at 130 °C and 40 Dsia= 2173 KJ/K» %3D %3D Vapor at 56.5 "C TIN-25°C TOur-40°C Cooling water Condensate T-450 Distillate D Reflux Ratio -2.5 98w% acetone 2000 kghr F- Feed 20wt%acetone 1 atm Reflux R 80wt%water T-25°C Reboiler Vapor Steam at p-40 psia &T-1 Steam flow Seturated liquid Bottom liquid Bottom produets W T-100°C 99.5wt%w ater | |

Q: - Make Material and energy balance to calculate the following: 1- The amount of overhead and bottom product 2- The flow rate of cooling water and steam used in such process. 2000Kg/hr of a liquid binary mixture (F) composed of 20wt% acetone and 80wt% water, are continuously feed to the distillation column at 25°C. The column operates at (1atm) with top product (D) contains 98wt% acetone and a bottom product (W) contains 99.5wt% water. The vapor (V) leaving the column enters a condenser where it is condensate and cooled to 45 °C and then divided to atop product and recycle stream (R) with reflux ratio of 2.5 Kg reflux/1 Kg product. The cooling water used in the condenser enters at 25°C and leaves at 40 C. Heat is supplied to the reboiler using dry saturated steam which enters at 40 psia and 130 "C and leaves as saturated liquid only and not subcooled. The bottom product (W) leaves the reboiler at 100°C .It can be satisfactory to use the physical properties of acetone for top product and that of water for bottom product throughout calculations 1) Make material balance calculations to estimate the mass flow rate Kg/hr of steam and cooling water used in such process Given that:- boiling point of acetone at 1 atm = 56.5 °C. Boiling point of water at 1 atm = 100 °C CPm of acetone =2.2 KJ/KgºC CPm of liquid water=4.2 KJ/Kg°C AH = 1 = h, of acetone at 56.5 °C and 1 atm= 520 KJ/Kg AH, = 1 = h, of water at 100 °C and 1 atm=2257 KJ/Kg AH = 1= h. of water at 130 °C and 40 Dsia= 2173 KJ/K» %3D %3D Vapor at 56.5 "C TIN-25°C TOur-40°C Cooling water Condensate T-450 Distillate D Reflux Ratio -2.5 98w% acetone 2000 kghr F- Feed 20wt%acetone 1 atm Reflux R 80wt%water T-25°C Reboiler Vapor Steam at p-40 psia &T-1 Steam flow Seturated liquid Bottom liquid Bottom produets W T-100°C 99.5wt%w ater | |

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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Assignment #5 Q: - Make Material and energy balance to calculate the following: 1- The amount of overhead and bottom product 2- The flow rate of cooling water and steam used in such process. 2000Kg/hr of a liquid binary mixture (F) composed of 20wt% acetone and 80wt% water, are continuously feed to the distillation column at 25°C. The column operates at (1atm) with top product (D) contains 98wt% acetone and a bottom product (W) contains 99.5wt% water. The vapor (V) leaving the column enters a condenser where it is condensate and cooled to 45 °C and then divided to atop product and recycle stream (R) with reflux ratio of 2.5 Kg reflux/1 Kg product. The cooling water used in the condenser enters at 25°C and leaves at 40 °C. Heat is supplied to the reboiler using dry saturated steam which enters at 40 psia and 130 °C and leaves as saturated liquid only and not subcooled. The bottom product (W) leaves the reboiler at 100°C .It can be satisfactory to use the physical properties of acetone for top product and that of water for bottom product throughout calculations 1) Make material balance calculations to estimate the mass flow rate Kg/hr of steam and cooling water used in such process Given that:- boiling point of acetone at 1 atm = 56.5 °C. Boiling point ofwater at 1 atm = 100 °C CPm of acetone =2.2 KJ/KgºC CPm of liquid water=4.2 KJ/Kg°C AH, = 1 = h, of acetone at 56.5 °C and 1 atm= 520 KJ/Kg AH, = 1 = h, of water at 100 ºC and 1 atm=2257 KJ/Kg AH. = 1 = h. of water at 130 ºC and 40 psia= 2173 KJ/Kº Vapor at 56.5 °C TIN-25°C TOUr 40°C Cooling water Condensate T-450 Distillate D Reflux R Reflux Ratio -2.5 2000 kg/hr F- Feed 20wt%acetone 1 atm 98w1% acetone 80wt%water T-25°C Reboiler Vapor Steam at p-40 psia &T-130'C Steam flow Saturated liquid Bottom liquid Bottom products W T-100°C 99.5wt%water
Transcribed Image Text:Assignment #5 Q: - Make Material and energy balance to calculate the following: 1- The amount of overhead and bottom product 2- The flow rate of cooling water and steam used in such process. 2000Kg/hr of a liquid binary mixture (F) composed of 20wt% acetone and 80wt% water, are continuously feed to the distillation column at 25°C. The column operates at (1atm) with top product (D) contains 98wt% acetone and a bottom product (W) contains 99.5wt% water. The vapor (V) leaving the column enters a condenser where it is condensate and cooled to 45 °C and then divided to atop product and recycle stream (R) with reflux ratio of 2.5 Kg reflux/1 Kg product. The cooling water used in the condenser enters at 25°C and leaves at 40 °C. Heat is supplied to the reboiler using dry saturated steam which enters at 40 psia and 130 °C and leaves as saturated liquid only and not subcooled. The bottom product (W) leaves the reboiler at 100°C .It can be satisfactory to use the physical properties of acetone for top product and that of water for bottom product throughout calculations 1) Make material balance calculations to estimate the mass flow rate Kg/hr of steam and cooling water used in such process Given that:- boiling point of acetone at 1 atm = 56.5 °C. Boiling point ofwater at 1 atm = 100 °C CPm of acetone =2.2 KJ/KgºC CPm of liquid water=4.2 KJ/Kg°C AH, = 1 = h, of acetone at 56.5 °C and 1 atm= 520 KJ/Kg AH, = 1 = h, of water at 100 ºC and 1 atm=2257 KJ/Kg AH. = 1 = h. of water at 130 ºC and 40 psia= 2173 KJ/Kº Vapor at 56.5 °C TIN-25°C TOUr 40°C Cooling water Condensate T-450 Distillate D Reflux R Reflux Ratio -2.5 2000 kg/hr F- Feed 20wt%acetone 1 atm 98w1% acetone 80wt%water T-25°C Reboiler Vapor Steam at p-40 psia &T-130'C Steam flow Saturated liquid Bottom liquid Bottom products W T-100°C 99.5wt%water
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