Kolmetz.com Testing MVGT Page 34
Table 2. (SI Unit) (cont'd)
F.R.I. 4 Foot Diameter High Pressure Column
Sulzer Chemtech MVGT
TM
Tray
iC4/nC4 System, 6.9 bar
Run Number
20817
20811
20810
20800
20799
20802
20801
Run Type
TR
TR
TR
TR
TR
TR
TR
Column Pressure
bar
6.89
6.89
6.88
6.89
6.89
6.89
6.90
Reboiler Duty
MW
1.709
2.327
2.327
2.661
2.661
2.927
2.926
Condenser Duty
MW
1.599
2.072
2.064
2.363
2.363
2.610
2.631
Heat Loss
MW
0.004
0.006
0.005
0.018
0.018
0.025
0.018
Reflux Rate
kg/s
4.68
6.95
6.99
7.73
7.75
8.36
8.40
Feed Rate
kg/s
7.55
7.54
7.54
7.55
7.56
7.54
7.64
Feed Location
Bottom
Bottom
Bottom
Bottom
Bottom
Bottom
Bottom
Pressure Drops:
mm Hot Liq/Tray
Overall (Trays 1-8)
77
91
91
103
103
120
120
Bottom (Trays 1-4)
75
90
90
99
99
114
115
Top (Trays 5-8)
77
92
92
104
104
121
122
Tray 7
79
93
93
105
105
123
124
Tray 8
84
96
96
107
107
122
122
Holdup by Bubblers
mm Hot Liq:
Tray 3 DC
108
119
119
129
129
150
151
Tray 5 DC
96
116
116
130
130
152
153
Tray 7 DC
99
115
114
130
130
157
158
Gamma Ray Holdup & DC Backup (inch Hot Liq):
Tray 4 -Centerline
55
68
94
Tray 5 DC Backup
122
115
149
Temperature Profiles
o
C
Accumulator tank
43.2
49.5
50.3
45.7
45.7
43.6
43.8
Reflux
43.5
49.7
50.5
45.6
45.6
43.3
43.6
Overhead Vapor
54.1
53.7
53.7
52.8
52.8
52.9
52.9
Tray 8 inlet
49.0
51.4
51.8
48.9
48.9
47.8
48.0
Tray 8 outlet
54.1
53.8
53.8
53.0
53.0
53.2
53.2
Tray 7 outlet
55.1
54.7
54.7
53.9
53.9
54.1
54.1
Tray 6 outlet
56.0
55.6
55.6
54.7
54.7
54.9
54.9
Tray 5 outlet
57.0
56.6
56.6
55.6
55.6
55.8
55.8
Tray 4 outlet
58.0
57.5
57.5
56.5
56.5
56.6
56.6
Tray 3 outlet
59.0
58.5
58.5
57.4
57.4
57.6
57.6
Tray 2 outlet
59.6
59.2
59.2
58.3
58.3
58.4
58.4
Tray 1 outlet
60.5
60.1
60.0
59.2
59.2
59.2
59.2
Bottoms
61.4
61.0
60.9
60.2
60.2
60.3
60.2
Reboiler vapor
61.9
61.0
61.0
60.2
60.2
60.3
60.3
Feed
61.1
60.6
60.7
59.3
59.3
59.0
59.3
Conditions at Tray 4 (Based on Reboiler Duty)
Composition
mol% iC4
43.72
45.54
45.46
54.04
53.87
53.05
53.01
Temperature
o
C
57.5
57.1
57.0
56.1
56.1
56.2
56.2
Liquid Density
kg/m
3
520.4
520.5
520.5
519.5
519.6
519.6
519.6
Vapor Density
kg/m
3
16.254
16.142
16.125
16.113
16.104
16.144
16.138
Vapor Rate
kg/s
5.523
7.520
7.523
8.616
8.615
9.455
9.474
Liquid Rate
m
3
/h
38.21
52.02
52.03
59.70
59.69
65.51
65.64
Fs
m/s (kg/m
3
)
0.5
1.173
1.603
1.604
1.838
1.838
2.015
2.019
Capacity Factor, Cs
m/s
0.052
0.071
0.071
0.082
0.082
0.090
0.090
Capacity Factor, Cb
m/s
0.074
0.100
0.101
0.115
0.115
0.126
0.127
Efficiency (Trays 1 & 7 Compositions)
%
106.8
101.9
102.3
96.7
96.6
93.2
92.0
Efficiency (Trays 1-7 slope)
%
105.6
101.4
100.4
96.2
96.5
93.6
92.3
Tray pressure drop
mm Hot Liq / tray
77
91
91
103
103
120
120
Relative Volatility
1.297
1.298
1.298
1.300
1.300
1.300
1.300
