Introduction to Chemical Engineering Thermodynamics
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: McGraw-Hill Education
Question

The flowsheet below describes a crystallization process.  A hot solution of water (W) and a substance A enter the crystallizer.  Some water evaporates and exits the crystallizer through stream 2, while pure crystals of A are formed and collected in stream 4.  The remaining water and A solution exits through stream 4.  It is known that:

  • 128 kg/hr of a 36.7 wt% of A solution enter the process
  • 6.0% of the incoming water evaporates
  • The exiting solution contains 27.2 wt% of A.

Calculate the production rate of crystals in kg/hr.  Use two decimal digits in your answer (e.g. 100.34)

 

Water
2
(W only)
3
Cold Solution
Hot Solution
(A+W)
crystallization
4 Crystals
(A only)
(A+W)
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Transcribed Image Text:Water 2 (W only) 3 Cold Solution Hot Solution (A+W) crystallization 4 Crystals (A only) (A+W)
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