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. 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. 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. last stage: the extracted meal is dried to give a dried meal of 8wt% moisture. Solve for: 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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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.
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.
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.
last stage: the extracted meal is dried to give a dried meal of 8wt% moisture.
Solve for:
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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