Kolmetz.com Testing MVGT Page 33
Table 2. (SI Unit)
F.R.I. 4 Foot Diameter High Pressure Column
Sulzer Chemtech MVGT
TM
Tray
iC4/nC4 System, 6.9 bar
Run Number
20812
20813
20818
20819
20815
20814
20816
Run Type
TR
TR
TR
TR
TR
TR
TR
Column Pressure
bar
6.94
6.89
6.89
6.89
6.90
6.90
6.89
Reboiler Duty
MW
0.761
0.762
1.044
1.044
1.329
1.329
1.709
Condenser Duty
MW
0.737
0.713
0.966
0.973
1.208
1.256
1.613
Heat Loss
MW
0.010
0.010
0.000
0.011
0.010
0.005
Reflux Rate
kg/s
1.81
1.84
2.77
2.77
3.49
3.51
4.69
Feed Rate
kg/s
7.56
7.56
7.54
7.53
7.55
7.55
7.55
Feed Location
Bottom
Bottom
Bottom
Bottom
Bottom
Bottom
Bottom
Pressure Drops:
mm Hot Liq/Tray
Overall (Trays 1-8)
14
15
62
62
69
69
77
Bottom (Trays 1-4)
11
11
61
61
65
65
75
Top (Trays 5-8)
14
15
63
63
70
70
77
Tray 7
19
19
64
64
72
72
79
Tray 8
17
17
66
66
74
74
84
Holdup by Bubblers
mm Hot Liq
Tray 3 DC
42
42
94
94
98
98
108
Tray 5 DC
18
18
75
76
88
89
96
Tray 7 DC
37
37
84
84
95
95
99
Gamma Ray Holdup & DC Backup
mm Hot Liq
Tray 4 -Centerline
16
46
50
50
Tray 5 DC Backup
79
79
91
Temperature Profiles
o
C
Accumulator tank
47.9
48.6
44.8
44.8
42.1
42.5
42.9
Reflux
48.1
48.6
45.6
45.6
42.2
42.6
43.3
Overhead Vapor
55.6
55.6
53.8
53.9
53.9
53.9
54.0
Tray 8 inlet
53.6
53.6
51.5
51.6
51.0
51.0
48.8
Tray 8 outlet
55.8
55.8
54.0
54.0
54.0
54.0
54.1
Tray 7 outlet
56.2
56.1
54.5
54.5
55.0
54.9
55.0
Tray 6 outlet
57.0
56.9
55.7
55.7
55.8
55.8
56.0
Tray 5 outlet
57.7
57.5
56.7
56.7
56.9
56.9
57.0
Tray 4 outlet
58.0
57.8
57.7
57.7
57.8
57.7
57.9
Tray 3 outlet
58.7
58.5
58.6
58.6
58.8
58.8
58.9
Tray 2 outlet
59.1
58.9
59.3
59.3
59.6
59.5
59.6
Tray 1 outlet
59.4
59.3
60.2
60.2
60.3
60.2
60.5
Bottoms
60.5
60.3
61.1
61.2
61.3
61.2
61.4
Reboiler vapor
60.8
60.7
61.6
61.6
61.8
61.7
61.9
Feed
60.0
59.8
61.1
61.2
60.7
60.7
61.1
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
C
57.8
57.7
57.2
57.2
57.3
57.3
57.5
Liquid Density
kg/m
3
520.5
520.9
520.9
520.8
520.6
520.8
520.4
Vapor Density
kg/m
3
16.287
16.178
16.081
16.097
16.181
16.124
16.247
Vapor Rate
kg/s
2.432
2.428
3.377
3.381
4.269
4.268
5.522
Liquid Rate
m
3
/h
16.82
16.78
23.34
23.37
29.52
29.51
38.20
Fs
m/s (kg/m
3
)
0.5
0.516
0.517
0.721
0.722
0.909
0.910
1.173
Capacity Factor, Cs
m/s
0.023
0.023
0.032
0.032
0.040
0.041
0.052
Capacity Factor, Cb
m/s
0.032
0.032
0.045
0.045
0.057
0.057
0.074
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
mm Hot Liq / tray
14
15
62
62
69
69
77
Relative Volatility
1.297
1.297
1.298
1.298
1.298
1.298
1.297
