Crude oil enters a distillation tower with capacity 1000 BPD at 576 °F, gasoline, naphtha, kerosene, and gas oil are vapor while reduced crude oil is liquid. Product Vol.% API Temperature Gasoline Naphtha Kerosene Gas oil Reduced crude 28 7 16 627 12 37 63 53 45 40 31 Molecular weight 110 155 185 240 (°F) 286 335 420 510 510 Latent heat (Btu lb) 120 113 100 90 Specific heat (Btu/lb. F) 0.48(vapor) 0.50(vapor) 0.53(vapor) 0.57(vapor) 0.69(liquid) 500 lb/hr of steam enters to tower at 535 °F (specific heat of steam is 0.5 Btu/lb. "F). Dew point of 100% gasoline on EFV curve is 296 °F at 760 mmlig. Total pressure at top of tower is 785 mmHg. Calculate temperature at top of tower for (1) hot reflux case and (2) cold reflux.
Crude oil enters a distillation tower with capacity 1000 BPD at 576 °F, gasoline, naphtha, kerosene, and gas oil are vapor while reduced crude oil is liquid. Product Vol.% API Temperature Gasoline Naphtha Kerosene Gas oil Reduced crude 28 7 16 627 12 37 63 53 45 40 31 Molecular weight 110 155 185 240 (°F) 286 335 420 510 510 Latent heat (Btu lb) 120 113 100 90 Specific heat (Btu/lb. F) 0.48(vapor) 0.50(vapor) 0.53(vapor) 0.57(vapor) 0.69(liquid) 500 lb/hr of steam enters to tower at 535 °F (specific heat of steam is 0.5 Btu/lb. "F). Dew point of 100% gasoline on EFV curve is 296 °F at 760 mmlig. Total pressure at top of tower is 785 mmHg. Calculate temperature at top of tower for (1) hot reflux case and (2) cold reflux.
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:Crude oil enters a distillation tower with capacity 1000 BPD at 576 "F, gasoline, naphtha,
kerosene, and gas oil are vapor while reduced crude oil is liquid.
Product
Vol.% API
Temperature
(°F)
286
335
420
Gasoline
Naphtha
Kerosene
Gas oil
28
7
16
12
Reduced crude 37
63
53
45
40
31
Pa
Molecular
weight
110
155
185
240
510
510
Latent heat
(Btu/lb)
120
113
100
90
Specific heat
(Btu/ib. F)
0.48(vapor)
0.50(vapor)
0.53(vapor)
0.57(vapor)
0.69(liquid)
500 lb/hr of steam enters to tower at 535 °F (specific heat of steam is 0.5 Btu/lb. "F).
Dew point of 100% gasoline on EFV curve is 296 °F at 760 mmlig.
Total pressure at top of tower is 785 mmHg.
Calculate temperature at top of tower for (1) hot reflux case and (2) cold reflux.
Use In2=(-) where R- 1.987. Assume tank temperature 80° F.
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