Kolmetz.com Testing MVGT Page 26
Table 2. (English Unit)
F.R.I. 4 Foot Diameter High Pressure Column
Sulzer Chemtech MVGT
TM
Tray
iC4/nC4 System, 100 psia
Run Number
20812
20813
20818
20819
20815
20814
20816
Run Type
TR
TR
TR
TR
TR
TR
TR
Column Pressure:
psia
100.6
100.0
100.0
100.0
100.1
100.1
100.0
Reboiler Duty
M Btu/h
2.60
2.60
3.57
3.57
4.54
4.54
5.84
Condenser Duty
M Btu/h
2.52
2.43
3.30
3.32
4.12
4.29
5.51
Heat Loss
M Btu/h
0.03
0.04
0.00
0.00
0.04
0.03
0.02
Reflux Rate
k lb/h
14.36
14.58
21.95
22.01
27.70
27.82
37.22
Feed Rate
k lb/h
59.99
59.97
59.85
59.76
59.95
59.95
59.95
Feed Location
Bottom
Bottom
Bottom
Bottom
Bottom
Bottom
Bottom
Pressure Drops:
inch Hot Liq/Tray
Overall (Trays 1-8)
0.56
0.57
2.45
2.45
2.72
2.73
3.04
Bottom (Trays 1-4)
0.42
0.44
2.39
2.40
2.56
2.56
2.95
Top (Trays 5-8)
0.57
0.58
2.48
2.48
2.76
2.76
3.04
Tray 7
0.74
0.74
2.53
2.53
2.85
2.85
3.10
Tray 8
0.66
0.66
2.62
2.62
2.90
2.91
3.29
Holdup by Bubblers
inch Hot Liq
Tray 3 DC
1.64
1.64
3.70
3.69
3.87
3.87
4.25
Tray 5 DC
0.70
0.70
2.96
2.98
3.47
3.49
3.80
Tray 7 DC
1.44
1.44
3.31
3.31
3.72
3.73
3.89
Gamma Ray Holdup & DC Backup (inch Hot Liq)
Tray 4 -Centerline
0.63
1.81
1.97
1.95
Tray 5 DC Backup
3.11
3.12
3.60
Temperature Profiles
o
F
Accumulator tank
118.2
119.4
112.6
112.6
107.8
108.5
109.3
Reflux
118.6
119.6
114.0
114.1
108.0
108.7
109.9
Overhead Vapor
132.2
132.0
128.9
128.9
129.1
128.9
129.2
Tray 8 inlet
128.5
128.5
124.7
124.8
123.8
123.8
119.9
Tray 8 outlet
132.5
132.4
129.2
129.2
129.3
129.2
129.4
Tray 7 outlet
133.2
132.9
130.1
130.2
130.9
130.8
131.1
Tray 6 outlet
134.5
134.4
132.2
132.2
132.5
132.4
132.7
Tray 5 outlet
135.8
135.6
134.1
134.1
134.4
134.3
134.6
Tray 4 outlet
136.4
136.1
135.8
135.8
136.0
135.8
136.3
Tray 3 outlet
137.7
137.4
137.5
137.5
137.9
137.8
138.1
Tray 2 outlet
138.3
138.0
138.7
138.7
139.2
139.1
139.3
Tray 1 outlet
139.0
138.7
140.3
140.3
140.5
140.4
140.9
Bottoms
140.8
140.5
142.1
142.1
142.3
142.2
142.4
Reboiler vapor
141.5
141.2
142.9
142.9
143.2
143.1
143.4
Feed
139.9
139.6
142.0
142.1
141.3
141.3
142.0
Conditions at Tray 4 (Based on Reboiler Duty)
Composition
Mol % iC4
41.38
40.82
43.49
43.67
43.84
43.39
43.89
Temperature
o
F
136.1
135.8
134.9
134.9
135.2
135.1
135.4
Liquid Density
lb/ft
3
32.50
32.52
32.52
32.51
32.50
32.51
32.48
Vapor Density
lb/ft
3
1.017
1.010
1.004
1.005
1.010
1.007
1.014
Vapor Rate
k lb/h
19.30
19.27
26.81
26.84
33.88
33.88
43.82
Liquid Rate
gpm
74.0
73.9
102.8
102.9
130.0
129.9
168.2
Fs
ft/s(lb/ft
3
)
0.5
0.423
0.424
0.591
0.592
0.745
0.746
0.962
Capacity Factor, C
S
ft/s
0.075
0.075
0.105
0.105
0.133
0.133
0.171
Capacity Factor, C
B
ft/s
0.106
0.106
0.148
0.148
0.187
0.187
0.241
Efficiency (Trays 1 & 7 Compositions)
72.1
72.1
103.9
104.1
104.8
103.0
107.5
Efficiency (Trays 1-7 slope)
70.1
68.1
104.1
104.2
103.8
103.7
106.8
Tray pressure drop
inch Hot Liq/ Tray
0.56
0.57
2.45
2.45
2.72
2.73
3.04
Relative Volatility
1.297
1.297
1.298
1.298
1.298
1.298
1.297
