In the ethyl benzene plant, one of the unit operations that is distillation column (T-302) is mainly functioned to purify the ethyl benzene. The key components in the feed mixture to the column are ethyl benzene and 1,4-Diethylbenzene. The design specifications of T-302 are shown in Table 4.1. Table 4.1 Design Specifications Material of construction No. of trays (Feed at tray 56) Reflux ratio Type of tray Tray efficiency (Eray) Height Diameter Table 4.2 Details on composition entering and leaving T-302 Stream Temperature (°C) Pressure (kPa) (gauge pressure) Vapour mole fraction Total flow (kg/h) Total flow (kmol/h) Component flow rates (kmol/h) Ethyl benzene 1,4-Diethylbenzene Feed 145.4 120.0 0 11024.5 101.1 90.63 10.35 Overhead 90.83 25 0 Carbon steel 76 Stainless steel 9538.6 89.9 89.72 0.0001 0.6608 Sieve tray 45% 28.96 m 1.5 m Bottom 123.67 55 0 1485.9 11.3 0.91 10.35 By using the information on the design specifications of T-302 shown in Table 4.1 and 4.2, determine the bare module cost of the distillation tower in year 2017. Given: Chemical Engineering Plant Cost Index (CEPCI); 2001 =394, 2017 = 551
In the ethyl benzene plant, one of the unit operations that is distillation column (T-302) is mainly functioned to purify the ethyl benzene. The key components in the feed mixture to the column are ethyl benzene and 1,4-Diethylbenzene. The design specifications of T-302 are shown in Table 4.1. Table 4.1 Design Specifications Material of construction No. of trays (Feed at tray 56) Reflux ratio Type of tray Tray efficiency (Eray) Height Diameter Table 4.2 Details on composition entering and leaving T-302 Stream Temperature (°C) Pressure (kPa) (gauge pressure) Vapour mole fraction Total flow (kg/h) Total flow (kmol/h) Component flow rates (kmol/h) Ethyl benzene 1,4-Diethylbenzene Feed 145.4 120.0 0 11024.5 101.1 90.63 10.35 Overhead 90.83 25 0 Carbon steel 76 Stainless steel 9538.6 89.9 89.72 0.0001 0.6608 Sieve tray 45% 28.96 m 1.5 m Bottom 123.67 55 0 1485.9 11.3 0.91 10.35 By using the information on the design specifications of T-302 shown in Table 4.1 and 4.2, determine the bare module cost of the distillation tower in year 2017. Given: Chemical Engineering Plant Cost Index (CEPCI); 2001 =394, 2017 = 551
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:In the ethyl benzene plant, one of the unit operations that is distillation column (T-302) is
mainly functioned to purify the ethyl benzene. The key components in the feed mixture to
the column are ethyl benzene and 1,4-Diethylbenzene. The design specifications of T-302
are shown in Table 4.1.
Table 4.1 Design Specifications
Material of construction
No. of trays
(Feed at tray 56)
Reflux ratio
Type of tray
Tray efficiency (Eray )
Carbon steel
76 Stainless steel
0.6608
Sieve tray
45%
Height
Diameter
28.96 m
1.5 m
Table 4.2 Details on composition entering and leaving T-302
Overhead
90.83
25
Feed
Stream
Temperature (°C)
Pressure (kPa)
(gauge pressure)
Vapour mole
fraction
Total flow (kg/h)
Total flow (kmol/h)
Component flow
rates (kmol/h)
Ethyl benzene
1,4-Diethylbenzene
Bottom
145.4
120.0
123.67
55
11024.5
101.1
9538.6
1485.9
89.9
11.3
90.63
10.35
89.72
0.0001
0.91
10.35
By using the information on the design specifications of T-302 shown in Table 4.1 and 4.2,
determine the bare module cost of the distillation tower in year 2017.
Given:
Chemical Engineering Plant Cost Index (CEPCI); 2001 =394, 2017 = 551
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