A material containing 75% H20 and 25% solid is fed to a granulator at a rate of 4,000 kg/hr. The feed is premixed in a granulator to reduce the water concentration of overall material in the granulator to 50% H20 and 50% solid before entering the drier. The product that leaves the drier is 16.77% H20 and part of this is recycled to be mixed with the fresh feed to the granulator. In the drier, air is passed over the solid being dried. The air entering the drier contains 3% H20 by weight and the air leaving the drier contains 6% H2O by weight. a) What is the recycle ratio to the granulator? b) What is the rate of air flow to the drier on a dry basis?
A material containing 75% H20 and 25% solid is fed to a granulator at a rate of 4,000 kg/hr. The feed is premixed in a granulator to reduce the water concentration of overall material in the granulator to 50% H20 and 50% solid before entering the drier. The product that leaves the drier is 16.77% H20 and part of this is recycled to be mixed with the fresh feed to the granulator. In the drier, air is passed over the solid being dried. The air entering the drier contains 3% H20 by weight and the air leaving the drier contains 6% H2O by weight. a) What is the recycle ratio to the granulator? b) What is the rate of air flow to the drier on a dry basis?
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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Transcribed Image Text:A material containing 75% H20 and 25% solid is fed to a granulator at a rate of 4,000 kg/hr. The feed is premixed
in a granulator to reduce the water concentration of overall material in the granulator to 50% H20 and 50% solid
before entering the drier. The product that leaves the drier is 16.77% H20 and part of this is recycled to be
mixed with the fresh feed to the granulator. In the drier, air is passed over the solid being dried. The air entering
the drier contains 3% H20 by weight and the air leaving the drier contains 6% H2O by weight.
a) What is the recycle ratio to the granulator?
b) What is the rate of air flow to the drier on a dry basis?
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