Hot Soap is chilled on a roller and scraped continuously from the roller onto a moving conveyor belt which carries the soap into a dryer (see the figure below). The entering soap contains 25% water by weight. It is desired to reduce the water content to 15% by weight and produce 1200 lb/hr of nearly dry soap chips. The entering air contains 0.3 mole % water vapour. The dryer manufacturer suggests that the dryer operates efficiently when the nearly dry air/wet soap flow ratio is 3.0/ Calculate the unknown flow rates and compositions. Air is 21% Oxygen and 79% Nitrogen (mole basis) and has a molecular weight of 29.0 g/mol.

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
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Hot Soap is chilled on a roller and scraped continuously from the roller onto a moving conveyor belt which carries the soap into a dryer (see the figure below). The entering soap contains 25% water by weight. It is desired to reduce the water content to 15% by weight and produce 1200 lb/hr of nearly dry soap chips. The entering air contains 0.3 mole % water vapour. The dryer manufacturer suggests that the dryer operates efficiently when the nearly dry air/wet soap flow ratio is 3.0/ Calculate the unknown flow rates and compositions. Air is 21% Oxygen and 79% Nitrogen (mole basis) and has a molecular weight of 29.0 g/mol.



moist air
hot, nearly dry air
Soap Dryer
wet soap chips
dried soap chips
Transcribed Image Text:moist air hot, nearly dry air Soap Dryer wet soap chips dried soap chips
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