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A liquid mixcture of 60% methanol and 40% water at 20 °C and 2 bar is fed continuously to an evaporator, where the mixture is heated to 55 C at 1 bar. The upper stream (vapour product) is 70% methanol, while the liquid stream is 20% methanol. How much heat must be transferred to the mixture per mole of feed? (a) Sketch a flow diagram of your setup and label with all relevant information. (b) Perform an energy balance for the system, to find the heat duty in kW, using the general procedure.

A liquid mixcture of 60% methanol and 40% water at 20 °C and 2 bar is fed continuously to an evaporator, where the mixture is heated to 55 C at 1 bar. The upper stream (vapour product) is 70% methanol, while the liquid stream is 20% methanol. How much heat must be transferred to the mixture per mole of feed? (a) Sketch a flow diagram of your setup and label with all relevant information. (b) Perform an energy balance for the system, to find the heat duty in kW, using the general procedure.

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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A liquid mixcture of 60% methanol and 40% water at 20 °C and 2 bar is fed continuously to an evaporator, where the mixture is heated to 55 °C at 1 bar. The upper stream (vapour product) is 70% methanol, while the liquid stream is 20% methanol. How much heat must be transferred to the mixture per mole of feed? (a) Sketch a flow diagram of your setup and label with all relevant information. (b) Perform an energy balance for the system, to find the heat duty in kW, using the general procedure.
Transcribed Image Text:A liquid mixcture of 60% methanol and 40% water at 20 °C and 2 bar is fed continuously to an evaporator, where the mixture is heated to 55 °C at 1 bar. The upper stream (vapour product) is 70% methanol, while the liquid stream is 20% methanol. How much heat must be transferred to the mixture per mole of feed? (a) Sketch a flow diagram of your setup and label with all relevant information. (b) Perform an energy balance for the system, to find the heat duty in kW, using the general procedure.
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