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QI: 2000Kghr of a liquid binary mixture (F) composed of 20wt% acetone and 80wts Water are continuously feed to the distillation column at 25°C. The column operates at (latm) with top product (D) contains 98wr% acetone and a hottom product (W) contains 99.5wt% water. The vapor (Vị leaving the column enters a condenser where it is condensate and coolcd to 45 C and then dividod to atop product and recycle stream (R) with reflux ratio of 25 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 li can be satisfactory to use the physical properties of acetone for top product and that of water for hottom product throughout calculations 1) Make material balance calculations to cstimate the mass flow ratekghr of steam and cooling water used in such process Given that:- boiling point of acetone at I atm 56.5 °C

QI: 2000Kghr of a liquid binary mixture (F) composed of 20wt% acetone and 80wts Water are continuously feed to the distillation column at 25°C. The column operates at (latm) with top product (D) contains 98wr% acetone and a hottom product (W) contains 99.5wt% water. The vapor (Vị leaving the column enters a condenser where it is condensate and coolcd to 45 C and then dividod to atop product and recycle stream (R) with reflux ratio of 25 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 li can be satisfactory to use the physical properties of acetone for top product and that of water for hottom product throughout calculations 1) Make material balance calculations to cstimate the mass flow ratekghr of steam and cooling water used in such process Given that:- boiling point of acetone at I atm 56.5 °C

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: 2000K9/hr of a liquid binary mixture (F) composed of 20wt% acctone and 80wt% Water are continuously feed to the distillation column at 25°C. The column operates at (latm) 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 subcouled. The bottom product (W) leaves the reboiler at 100°C .t 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 cstimate the mass flow ratcKg/hr of steam and cooling water used in such process Given that:- boiling point of acetone at I atm 56.5 "C boiling point of water at 1 atm = 100 "C CPu of acetone =2.2 KJ/Kg'C Cm of liquid water=4.2 KJ/Kg"C AH, = i=h, of acetone at 56.5 "C and 1 atm = 520KJ/Kg AH, = i= h, of water at 100 "C and 1 atm=2257 KJ/Kg AH; = i = h, of water at 130 "C and 40 psia= 2173KJ/Kg Enriehed vaper Ty-25 Cooling water Candenaate T-49 Distillate D Reflux Ratin -25 1 atn 2000 kghe - Feed- 20 cetene S0in ater Reliler Vapor Se l40 psie AT 13C Steam faw Saturated liuid Bettom liquid Bottom products W T-1c
Transcribed Image Text:Q1: 2000K9/hr of a liquid binary mixture (F) composed of 20wt% acctone and 80wt% Water are continuously feed to the distillation column at 25°C. The column operates at (latm) 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 subcouled. The bottom product (W) leaves the reboiler at 100°C .t 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 cstimate the mass flow ratcKg/hr of steam and cooling water used in such process Given that:- boiling point of acetone at I atm 56.5 "C boiling point of water at 1 atm = 100 "C CPu of acetone =2.2 KJ/Kg'C Cm of liquid water=4.2 KJ/Kg"C AH, = i=h, of acetone at 56.5 "C and 1 atm = 520KJ/Kg AH, = i= h, of water at 100 "C and 1 atm=2257 KJ/Kg AH; = i = h, of water at 130 "C and 40 psia= 2173KJ/Kg Enriehed vaper Ty-25 Cooling water Candenaate T-49 Distillate D Reflux Ratin -25 1 atn 2000 kghe - Feed- 20 cetene S0in ater Reliler Vapor Se l40 psie AT 13C Steam faw Saturated liuid Bettom liquid Bottom products W T-1c
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