Kolmetz.com Testing MVGT Page 29
Table 3. (English Unit)
F.R.I. 4 Foot Diameter High Pressure Column
Sulzer Chemtech MVGT
TM
Tray
iC4/nC4 System, 165 psia
Run Number
20826
20827
20828
20829
20831
20830
20833
Run Type
TR
TR
TR
TR
TR
TR
TR
Column Pressure:
psia
165.2
165.2
165.1
165.0
165.0
165.0
165.1
Reboiler Duty
M Btu/h
2.51
2.51
3.44
3.44
4.70
4.70
5.93
Condenser Duty
M Btu/h
2.14
2.17
3.03
3.07
4.05
4.06
4.99
Heat Loss
M Btu/h
0.06
0.05
0.05
0.05
0.06
0.06
0.06
Reflux Rate
k lb/h
10.20
10.49
16.45
16.43
25.41
25.30
34.67
Feed Rate
k lb/h
60.07
59.83
59.83
59.81
59.86
59.86
59.96
Feed Location
Bottom
Bottom
Bottom
Bottom
Bottom
Bottom
Bottom
Pressure Drops:
inch Hot Liq/Tray
Overall (Trays 1-8)
0.43
0.45
2.02
2.04
2.73
2.73
2.96
Bottom (Trays 1-4)
0.44
0.47
1.99
2.01
2.70
2.70
2.90
Top (Trays 5-8)
0.44
0.46
2.07
2.09
2.79
2.78
3.00
Tray 7
1.68
1.75
2.83
3.03
4.89
5.17
3.07
Tray 8
0.44
0.43
2.34
2.36
3.03
3.03
3.27
Holdup by Bubblers
inch Hot Liq
Tray 3 DC
2.41
2.43
4.28
4.26
4.67
4.69
4.88
Tray 5 DC
1.47
1.46
3.40
3.43
4.36
4.33
Tray 7 DC
2.73
2.68
3.55
3.60
5.01
4.99
5.01
Gamma Ray Holdup & DC Backup (inch Hot Liq)
Tray 4 -Centerline
0.56
1.72
1.95
Tray 5 DC Backup
0.50
3.23
3.85
Temperature Profiles
o
F
Accumulator tank
87.7
88.2
89.7
89.0
103.9
102.9
121.4
Reflux
91.8
92.2
92.9
92.2
105.0
104.1
121.2
Overhead Vapor
171.0
171.1
169.0
168.9
169.1
169.1
170.4
Tray 8 inlet
165.1
164.7
161.6
161.6
162.7
162.9
158.2
Tray 8 outlet
172.4
172.4
170.6
170.6
170.1
170.0
171.1
Tray 7 outlet
171.2
171.1
170.3
170.3
171.6
171.6
172.8
Tray 6 outlet
174.2
174.0
172.7
172.7
173.4
173.4
174.3
Tray 5 outlet
174.4
174.4
174.3
174.3
175.1
175.1
176.0
Tray 4 outlet
175.5
175.5
176.0
176.0
176.5
176.5
177.4
Tray 3 outlet
176.5
176.5
177.3
177.3
178.1
178.1
179.0
Tray 2 outlet
177.3
177.4
178.3
178.4
179.2
179.2
180.0
Tray 1 outlet
178.5
178.6
180.1
180.1
180.1
180.1
181.2
Bottoms
180.7
180.8
181.5
181.6
182.0
182.0
182.8
Reboiler vapor
181.2
181.2
182.1
182.1
182.5
182.5
183.4
Feed
179.3
179.4
180.2
180.3
180.5
180.5
181.2
Conditions at Tray 4 (Based on Reboiler Duty)
Composition
Mol % iC4
46.87
46.72
43.43
43.07
40.83
40.39
37.26
Temperature
o
F
174.9
174.9
175.1
175.1
175.8
175.8
176.7
Liquid Density
lb/ft
3
30.34
30.34
30.39
30.40
30.40
30.42
30.43
Vapor Density
lb/ft
3
1.820
1.819
1.802
1.800
1.801
1.797
1.798
Vapor Rate
k lb/h
20.68
20.70
28.48
28.47
38.94
38.93
49.22
Liquid Rate
gpm
85.0
85.1
116.8
116.8
159.7
159.6
201.7
Fs
ft/s(lb/ft
3
)
0.5
0.339
0.339
0.469
0.469
0.641
0.642
0.811
Capacity Factor, C
S
ft/s
0.063
0.063
0.088
0.088
0.120
0.120
0.152
Capacity Factor, C
B
ft/s
0.089
0.089
0.123
0.123
0.169
0.169
0.213
Efficiency (Trays 1 & 7 Compositions)
69.6
69.1
102.7
102.8
106.0
107.0
113.0
Efficiency (Trays 1-7 slope)
69.5
69.7
106.5
106.4
108.6
110.1
112.5
Tray pressure drop
inch Hot Liq/ Tray
0.43
0.45
2.02
2.04
2.73
2.73
2.96
Relative Volatility
1.231
1.231
1.231
1.232
1.231
1.231
1.231
