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10 000 kg of sugar beet containing 15% sugar (A) and 5% water (C) by mass will be extracted in a 2-stage continuous solid-liquid extraction system. Fresh solvent is fed to both stages separately. In the downstream leaving both stages (L₁ and L₂), the mass of inert solids per unit solution mass is constant and is 3. Assuming that the equilibrium relationship for the currents leaving each stage is xamya, a) Calculate the extraction efficiency b) What would be the extraction efficiency if the same extraction process was carried out in one step and with a solvent feed of 17500 kg/h? Comment the results Vi, -7500 kg/h V₁, -10000 kg/h

10 000 kg of sugar beet containing 15% sugar (A) and 5% water (C) by mass will be extracted in a 2-stage continuous solid-liquid extraction system. Fresh solvent is fed to both stages separately. In the downstream leaving both stages (L₁ and L₂), the mass of inert solids per unit solution mass is constant and is 3. Assuming that the equilibrium relationship for the currents leaving each stage is xamya, a) Calculate the extraction efficiency b) What would be the extraction efficiency if the same extraction process was carried out in one step and with a solvent feed of 17500 kg/h? Comment the results Vi, -7500 kg/h V₁, -10000 kg/h

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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Can you solve this question without copy and paste from somewhere?  

Note : L= A+C

A: flow rate of A in solution

C : flow rate of C in solution

(Lo= Ao+Co  and L1= A1+C1 and L2=A2+C2)

 

10 000 kg of sugar beet containing 15% sugar (A) and 5% water (C) by mass will be extracted in a 2-stage continuous solid-liquid extraction system. Fresh solvent is fed to both stages separately. In the downstream leaving both stages (L₁ and L₂), the mass of inert solids per unit solution mass is constant and is 3. Assuming that the equilibrium relationship for the currents leaving each stage is xa-ya, a) Calculate the extraction efficiency b) What would be the extraction efficiency if the same extraction process was carried out in one step and with a solvent feed of 17500 kg/h? Comment the results V₂,- 7500 kg/h V₁ = 10000 kg/h
Transcribed Image Text:10 000 kg of sugar beet containing 15% sugar (A) and 5% water (C) by mass will be extracted in a 2-stage continuous solid-liquid extraction system. Fresh solvent is fed to both stages separately. In the downstream leaving both stages (L₁ and L₂), the mass of inert solids per unit solution mass is constant and is 3. Assuming that the equilibrium relationship for the currents leaving each stage is xa-ya, a) Calculate the extraction efficiency b) What would be the extraction efficiency if the same extraction process was carried out in one step and with a solvent feed of 17500 kg/h? Comment the results V₂,- 7500 kg/h V₁ = 10000 kg/h
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