A slurry of flaked soybeans weighing a total of 100 kg contains 75 kg of inert solids and 25 kg of solution with 10 wt% oil and 90 wt% solvent hexane. This slurry is contacted with pure hexane in a countercurrent extraction unit so that 98% of the oil in the feed is recovered. The value of retention for the outlet underflow is 1.5 kg insoluble solid/ kg solution retained. Determine the following: (1.a) Calculate the amounts and compositions of the overflow V1 and underflow L1 leaving. (1.b)Calculate the number of stages needed to achieve the process.
A slurry of flaked soybeans weighing a total of 100 kg contains 75 kg of inert solids and 25 kg of solution with 10 wt% oil and 90 wt% solvent hexane. This slurry is contacted with pure hexane in a countercurrent extraction unit so that 98% of the oil in the feed is recovered. The value of retention for the outlet underflow is 1.5 kg insoluble solid/ kg solution retained. Determine the following: (1.a) Calculate the amounts and compositions of the overflow V1 and underflow L1 leaving. (1.b)Calculate the number of stages needed to achieve the process.
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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1. A slurry of flaked soybeans weighing a total of 100 kg contains 75 kg of inert solids and 25 kg of solution with 10 wt% oil and 90 wt% solvent hexane. This slurry is contacted with pure hexane in a countercurrent extraction unit so that 98% of the oil in the feed is recovered. The value of retention for the outlet underflow is 1.5 kg insoluble solid/ kg solution retained.
Determine the following:
(1.a) Calculate the amounts and compositions of the overflow V1 and underflow L1 leaving.
(1.b)Calculate the number of stages needed to achieve the process.
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