A continuous fractionating column, operating at atmospheric pressure, is to be designed to separate a mixture containing 15.67 per cent C S2 and 84.33 per cent CCl4 into an overhead product containing 91 per cent CS2 and a waste of 97.3 per cent CC14 all by mass. A plate efficiency of 70 per cent and a reflux of 3.16 kmol/kmol of product may be assumed. Using the following data, determine the number of plates required. The feed enters at 290 K with a specific heat capacity of 1.7 kD/kg K and a boiling point of 336 K. The latent heats of C S2 and CCl4 are 25.9 kJ/kmol. CS2 in 8.23 15.55 26.6 33.2 49.5 63.4 74.7 82.9 87.8 the 93.2 vapour CS2 in 2.36 6.15 11.06 14.35 25.85 33 53.18 66.3 75.75 the 86.0 liquid (Mole per cent)

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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A continuous fractionating column, operating at atmospheric pressure, is to be designed to
separate a mixture containing 15.67 per cent C'S2 and 84.33 per cent CCl, into an overhead
product containing 91 per cent CS2 and a waste of 97.3 per cent CCl4 all by mass. A plate
efficiency of 70 per cent and a reflux of 3.16 kmol/kmol of product may be assumed. Using the
following data, determine the number of plates required.
The feed enters at 290 K with a specific heat capacity of 1.7 kD/kg K and a boiling point of 336
K. The latent heats of C'S2 and CCl4 are 25.9 kJ/kmol.
CS2 in
8.23
15.55
26.6
33.2
49.5
63.4
74.7
82.9
87.8
93.2
the
vapour
CS2 in
2.36
6.15
11.06
14.35
25.85
33
53.18
66.3
75.75
86.0
the
liquid
(Mole
per
cent)
Transcribed Image Text:A continuous fractionating column, operating at atmospheric pressure, is to be designed to separate a mixture containing 15.67 per cent C'S2 and 84.33 per cent CCl, into an overhead product containing 91 per cent CS2 and a waste of 97.3 per cent CCl4 all by mass. A plate efficiency of 70 per cent and a reflux of 3.16 kmol/kmol of product may be assumed. Using the following data, determine the number of plates required. The feed enters at 290 K with a specific heat capacity of 1.7 kD/kg K and a boiling point of 336 K. The latent heats of C'S2 and CCl4 are 25.9 kJ/kmol. CS2 in 8.23 15.55 26.6 33.2 49.5 63.4 74.7 82.9 87.8 93.2 the vapour CS2 in 2.36 6.15 11.06 14.35 25.85 33 53.18 66.3 75.75 86.0 the liquid (Mole per cent)
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