Problem No 3: A material contains 75% water and 25% solid is fed to a granulator at a rate of 4000 kg/hr. The feed is premixed in the granulator with recycled product from a dryer, which follows the granulator (to reduce the water concentration of the overall material fed into the granulator to 50% water, 50% solids). The product that leaves the dryer is 16.7% water. In the dryer, air is passed over the solid being dried. The air entering the dryer contains 3% water by weight (mass), and the air leaving the dryer contains 6% water by weight (mass).
Problem No 3: A material contains 75% water and 25% solid is fed to a granulator at a rate of 4000 kg/hr. The feed is premixed in the granulator with recycled product from a dryer, which follows the granulator (to reduce the water concentration of the overall material fed into the granulator to 50% water, 50% solids). The product that leaves the dryer is 16.7% water. In the dryer, air is passed over the solid being dried. The air entering the dryer contains 3% water by weight (mass), and the air leaving the dryer contains 6% water by weight (mass).
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
Related questions
Question
What is the ratio of the recycle to the feed entering the granulator?
What is the rate of air flow to the dryer on a dry basis?
Transcribed Image Text:Problem No 3: A material contains 75% water and 25% solid is fed to a
granulator at a rate of 4000 kg/hr. The feed is premixed in the granulator
with recycled product from a dryer, which follows the granulator (to
reduce the water concentration of the overall material fed into the
granulator to 50% water, 50% solids). The product that leaves the dryer
is 16.7% water. In the dryer, air is passed over the solid being dried. The
air entering the dryer contains 3% water by weight (mass), and the air
leaving the dryer contains 6% water by weight (mass).
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