10. The following figure shows an example of physically separating a recycle stream from a product. The process vessel in this case is making iron powder from input ingot by a process called atomization, which generated particles in a variety of sizes. Metal powder customers usually specify a narrower particle size range than the atomizer produces, so the process includes two screens, one to separate out the oversize material and a second that only allows undersize particles to pass through. The powder that doesn't pass through the second screen is what gets shipped to customers. The oversize and under-size powder streams are mixed together and fed back into the powdermaking unit. Fresh Atomizer feed Oversize 1 Recycle Product 2 Undersize One hundred twenty tons per day of "fresh" iron are fed to the powdermaking unit shown in the figure. Ten percent of the powder product fails to pass through the first screen; 26% of the powder fed to the second screen passes through it. If both the oversize and undersize powder is recycled, what percent of the feed to the powdermaking unit consists of recycled material?
10. The following figure shows an example of physically separating a recycle stream from a product. The process vessel in this case is making iron powder from input ingot by a process called atomization, which generated particles in a variety of sizes. Metal powder customers usually specify a narrower particle size range than the atomizer produces, so the process includes two screens, one to separate out the oversize material and a second that only allows undersize particles to pass through. The powder that doesn't pass through the second screen is what gets shipped to customers. The oversize and under-size powder streams are mixed together and fed back into the powdermaking unit. Fresh Atomizer feed Oversize 1 Recycle Product 2 Undersize One hundred twenty tons per day of "fresh" iron are fed to the powdermaking unit shown in the figure. Ten percent of the powder product fails to pass through the first screen; 26% of the powder fed to the second screen passes through it. If both the oversize and undersize powder is recycled, what percent of the feed to the powdermaking unit consists of recycled material?
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:10. The following figure shows an example of physically separating a recycle stream from a
product. The process vessel in this case is making iron powder from input ingot by a
process called atomization, which generated particles in a variety of sizes. Metal powder
customers usually specify a narrower particle size range than the atomizer produces, so
the process includes two screens, one to separate out the oversize material and a second
that only allows undersize particles to pass through. The powder that doesn't pass
through the second screen is what gets shipped to customers. The oversize and under-size
powder streams are mixed together and fed back into the powdermaking unit.
Fresh
Atomizer
feed
Oversize
1
Recycle
Product
2
Undersize
One hundred twenty tons per day of "fresh" iron are fed to the powdermaking unit shown
in the figure. Ten percent of the powder product fails to pass through the first screen;
26% of the powder fed to the second screen passes through it. If both the oversize and
undersize powder is recycled, what percent of the feed to the powdermaking unit consists
of recycled material?
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