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An evaporation-crystallization process is used to obtain solid potassium sulfate from an aqueous solution of this salt. The feed to the process contains 18.6% wt K₂SO4. The wet filter cake consists of solid K₂SO4 crystals and 40% wt K₂SO4 solution, in a ratio 10 kg crystals/kg solution. Of the water fed to the evaporator, 82.66% is evaporated. The evaporator has a maximum capacity of 155 kg water evaporated per minute. Calculate the maximum production rate of solid K₂SO4 and the rate at which the feed must be supplied to achieve this production rate, if the wet filter cake is passed through a dryer to produce bone-dry K₂SO4.

An evaporation-crystallization process is used to obtain solid potassium sulfate from an aqueous solution of this salt. The feed to the process contains 18.6% wt K₂SO4. The wet filter cake consists of solid K₂SO4 crystals and 40% wt K₂SO4 solution, in a ratio 10 kg crystals/kg solution. Of the water fed to the evaporator, 82.66% is evaporated. The evaporator has a maximum capacity of 155 kg water evaporated per minute. Calculate the maximum production rate of solid K₂SO4 and the rate at which the feed must be supplied to achieve this production rate, if the wet filter cake is passed through a dryer to produce bone-dry K₂SO4.

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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An evaporation-crystallization process is used to obtain solid potassium sulfate from an aqueous solution of this salt. The feed to the process contains 18.6% wt K2SO4. The wet filter cake consists of solid K2SO4 crystals and 40% wt K2SO4 solution, in a ratio 10 kg crystals/kg solution. Of the water fed to the evaporator, 82.66% is evaporated. The evaporator has a maximum capacity of 155 kg water evaporated per minute. Calculate the maximum production rate of solid K2SO4 and the rate at which the feed must be supplied to achieve this production rate, if the wet filter cake is passed through a dryer to produce bone-dry K2SO4.
Transcribed Image Text:An evaporation-crystallization process is used to obtain solid potassium sulfate from an aqueous solution of this salt. The feed to the process contains 18.6% wt K2SO4. The wet filter cake consists of solid K2SO4 crystals and 40% wt K2SO4 solution, in a ratio 10 kg crystals/kg solution. Of the water fed to the evaporator, 82.66% is evaporated. The evaporator has a maximum capacity of 155 kg water evaporated per minute. Calculate the maximum production rate of solid K2SO4 and the rate at which the feed must be supplied to achieve this production rate, if the wet filter cake is passed through a dryer to produce bone-dry K2SO4.
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