2.3 Kg/s of solid containing 0.55 Kg/s soluble material is to be washed with 2.8 Kg/s pure solvent in a counter – current unit . The final residue is to contain not more than 0.1% solute when dried . Find the number of stages given that the amount of solution in under flow varies with solute concentration according to the relation : W = 0.2 X + 0.3 , Also find the concentration and quantities in and out from each stage . 03:- Fresh halibut livers containing 25.7% (weight percent) oil are tobe extracted with pure ethyl ether to remove 95% of the oil in acountercurrent multistage leaching process . The feed rate is 1000 Kgof the fresh liver per hour . The final exit over flow solution is to be contain70% by mass oil . The molar flow varies as follows .16Mass TransferThird YearAssist. Prof. Dr. Ahmed DahamKg solution / kg inert solidKg oil / kg solution0.2050.2860.20.4050.40.5990.60.7190.81Calculate the amount & composition of the exit streams and the total number ofthe theoretical stages.

Since, two different questions are given so according to guidelines only first one will be…

Answered: 2.3 Kg/s of solid containing 0.55 Kg/s…

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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2.3 Kg/s of solid containing 0.55 Kg/s soluble material is to be washed with 2.8 Kg/s pure solvent in a counter – current unit . The final residue is to contain not more than 0.1% solute when dried . Find the number of stages given that the amount of solution in under flow varies with solute concentration according to the relation : W = 0.2 X + 0.3 , Also find the concentration and quantities in and out from each stage .

03:- Fresh halibut livers containing 25.7% (weight percent) oil are to
be extracted with pure ethyl ether to remove 95% of the oil in a
counter
current multistage leaching process . The feed rate is 1000 Kg
of the fresh liver per hour . The final exit over flow solution is to be contain
70% by mass oil . The molar flow varies as follows .
16
Mass Transfer
Third Year
Assist. Prof. Dr. Ahmed Daham
Kg solution / kg inert solid
Kg oil / kg solution
0.205
0.286
0.2
0.405
0.4
0.599
0.6
0.719
0.81
Calculate the amount & composition of the exit streams and the total number of
the theoretical stages.

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