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5.1 A feed of 10 000 kg of soybeans is processed in a sequence of three stages. The feed contains 35wt% protein, 27.1wt% carbohydrate, 9.4wt% fiber and ash, 10.5wt% moisture and 18wt% oil. In the first stage, the beans are crushed and pressed to remove oil, giving an expressed oil stream and a stream of pressed beans containing 6wt% oil. Assume no loss of other constituents in the oil stream. In the second stage, the pressed beans are extracted with hexane to produce an extracted meal stream containing 0.5wt% oil and a hexane-oil stream. Assume no hexane in the extracted meal. Finally, in the last stage, the extracted meal is dried to give a dried meal of 8wt% moisture. Calculate the following: a. kg of pressed beans from the first stage b. kg of extracted meal from the second stage c. kg of final dried meal from the third stage

5.1 A feed of 10 000 kg of soybeans is processed in a sequence of three stages. The feed contains 35wt% protein, 27.1wt% carbohydrate, 9.4wt% fiber and ash, 10.5wt% moisture and 18wt% oil. In the first stage, the beans are crushed and pressed to remove oil, giving an expressed oil stream and a stream of pressed beans containing 6wt% oil. Assume no loss of other constituents in the oil stream. In the second stage, the pressed beans are extracted with hexane to produce an extracted meal stream containing 0.5wt% oil and a hexane-oil stream. Assume no hexane in the extracted meal. Finally, in the last stage, the extracted meal is dried to give a dried meal of 8wt% moisture. Calculate the following: a. kg of pressed beans from the first stage b. kg of extracted meal from the second stage c. kg of final dried meal from the third stage

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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Topic: Material Balance on Multiple Units

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5.1 A feed of 10 000 kg of soybeans is processed in a sequence of three stages. The feed contains 35wt% protein, 27.1wt% carbohydrate, 9.4wt% fiber and ash, 10.5wt% moisture and 18wt% oil. In the first stage, the beans are crushed and pressed to remove oil, giving an expressed oil stream and a stream of pressed beans containing 6wt% oil. Assume no loss of other constituents in the oil stream. In the second stage, the pressed beans are extracted with hexane to produce an extracted meal stream containing 0.5wt% oil and a hexane-oil stream. Assume no hexane in the extracted meal. Finally, in the last stage, the extracted meal is dried to give a dried meal of 8wt% moisture. Calculate the following: a. kg of pressed beans from the first stage b. kg of extracted meal from the second stage c. kg of final dried meal from the third stage d. wt% of protein in the dried meal
Transcribed Image Text:5.1 A feed of 10 000 kg of soybeans is processed in a sequence of three stages. The feed contains 35wt% protein, 27.1wt% carbohydrate, 9.4wt% fiber and ash, 10.5wt% moisture and 18wt% oil. In the first stage, the beans are crushed and pressed to remove oil, giving an expressed oil stream and a stream of pressed beans containing 6wt% oil. Assume no loss of other constituents in the oil stream. In the second stage, the pressed beans are extracted with hexane to produce an extracted meal stream containing 0.5wt% oil and a hexane-oil stream. Assume no hexane in the extracted meal. Finally, in the last stage, the extracted meal is dried to give a dried meal of 8wt% moisture. Calculate the following: a. kg of pressed beans from the first stage b. kg of extracted meal from the second stage c. kg of final dried meal from the third stage d. wt% of protein in the dried meal
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