Many cereals are made with high moisture content so that the cereal can be formed into various shapes before it is dried. A cereal product containing 58% by mass is produced at the rate of 1000. kg/h. How much water must be evaporated per hour if the final product contains only 22% water?

Question

Hannah Frank

Chemistry

9 May, 17:17

Many cereals are made with high moisture content so that the cereal can be formed into various shapes before it is dried. A cereal product containing 58% by mass is produced at the rate of 1000. kg/h. How much water must be evaporated per hour if the final product contains only 22% water?

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Answers (1)

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Edward Callahan · Answer 1

461.54 kg/h

Explanation:

First lets calculate the mass flow of the dry product:

Md=1000 kg/h * (1-0.58) = 420 kg/h

The mass flow of the moist final product is then:

Mm = 420 kg/h / (1-0.22) = 538.46 kg/h

The water to be evaporated is then the difference between the feed and the product.

W = 1000 kg/h - 538.46 kg/h = 461.54 kg/h