fouling temp analysis
TRANSCRIPT
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7/30/2019 Fouling Temp Analysis
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Process Chemistry Task Force
Temperature Analysis
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7/30/2019 Fouling Temp Analysis
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Fouling Data Summary When?
T9 Temp CWS temp CWR T Fouling Reactor Month
2.08 8.03 2.53 FW 24 Feb-03
11.01 15.12 1.98 FS 24 May-03
FS 22 Jul-99
14.05 15.69 1.78 FS 26 Jul-01
0.00 19.66 2.22 FW 26 Sep-00
6.40 12.25 2.01 FW 22 Oct-03
7.79 18.36 2.25 FW 23 Nov-027.76 16.32 2.07 FW 22 Dec-03
3.05 9.85 1.37 FW 26 Dec-02
7.18 12.73 3.12 NFW 22 Jan-02
4.91 12.02 2.30 NFW 24 Jan-04
3.16 8.75 1.42 NFW 26 Jan-04
2.73 10.32 1.87 NFW 22 Feb-03
8.57 10.61 1.23 NFS 23 May-02
NFS 22 Jul-02
17.20 21.34 3.47 NFS 24 Jul-03
13.23 15.68 0.91 NFS 26 Jul-03
2.77 9.22 2.36 NFW 23 Dec-01
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7/30/2019 Fouling Temp Analysis
3/27
Fouling Data Summary When?
T9 Temp CWS temp CWR T Fouling Reactor Month
7.18 12.73 3.12 NFW 22 Jan
4.91 12.02 2.30 NFW 24 Jan
3.16 8.75 1.42 NFW 26 Jan
2.08 8.03 2.53 FW 24 Feb
2.73 10.32 1.87 NFW 22 Feb
11.01 15.12 1.98 FS 24 May
8.57 10.61 1.23 NFS 23 May
FS 22 Jul
14.05 15.69 1.78 FS 26 Jul
NFS 22 Jul
17.20 21.34 3.47 NFS 24 Jul
13.23 15.68 0.91 NFS 26 Jul0.00 19.66 2.22 FW 26 Sep
6.40 12.25 2.01 FW 22 Oct
7.79 18.36 2.25 FW 23 Nov
7.76 16.32 2.07 FW 22 Dec
3.05 9.85 1.37 FW 26 Dec
2.77 9.22 2.36 NFW 23 Dec
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7/30/2019 Fouling Temp Analysis
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Fouling Data Summary Since When?
Fouling Reactor Month
FS 22 Jul-99
FW 26 Sep-00
FS 26 Jul-01
FW 23 Nov-02
FW 26 Dec-02
FW 24 Feb-03
FS 24 May-03
FW 22 Oct-03
FW 22 Dec-03
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7/30/2019 Fouling Temp Analysis
5/27
Fouling Data Summary What Temp?
T9 Temp CWS temp CWR T Fouling Reactor Month
2.08 8.03 2.53 FW 24 Feb-03
3.16 8.75 1.42 NFW 26 Jan-04
2.77 9.22 2.36 NFW 23 Dec-01
3.05 9.85 1.37 FW 26 Dec-02
2.73 10.32 1.87 NFW 22 Feb-03
8.57 10.61 1.23 NFS 23 May-02
4.91 12.02 2.30 NFW 24 Jan-04
6.40 12.25 2.01 FW 22 Oct-03
7.18 12.73 3.12 NFW 22 Jan-02
11.01 15.12 1.98 FS 24 May-03
13.23 15.68 0.91 NFS 26 Jul-03
14.05 15.69 1.78 FS 26 Jul-017.76 16.32 2.07 FW 22 Dec-03
7.79 18.36 2.25 FW 23 Nov-02
0.00 19.66 2.22 FW 26 Sep-00
17.20 21.34 3.47 NFS 24 Jul-03
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7/30/2019 Fouling Temp Analysis
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Fouling Data Summary What Plant Load?
CWS temp CWR T Fouling Reactor Month
15.68 0.91 NFS 26 Jul-03
10.61 1.23 NFS 23 May-02
9.85 1.37 FW 26 Dec-02
8.75 1.42 NFW 26 Jan-04
15.69 1.78 FS 26 Jul-01
10.32 1.87 NFW 22 Feb-0315.12 1.98 FS 24 May-03
12.25 2.01 FW 22 Oct-03
16.32 2.07 FW 22 Dec-03
19.66 2.22 FW 26 Sep-00
18.36 2.25 FW 23 Nov-02
12.02 2.30 NFW 24 Jan-04
9.22 2.36 NFW 23 Dec-01
8.03 2.53 FW 24 Feb-03
12.73 3.12 NFW 22 Jan-02
21.34 3.47 NFS 24 Jul-03
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7/30/2019 Fouling Temp Analysis
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Contents Temp (C) for the conversion period of batches of DP300
0
20
40
60
80
100
120
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
Temp(C)
FS 23 NFW 23 NFW 23 FS 26 FS 26 NFS 26 FW 26 NFW 26 FS 24 NFS 24
FW 24 NFW 24 FW 22 NFS 22 FW 22 NFW 22 NFW 22
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7/30/2019 Fouling Temp Analysis
8/27
Contents Temp (C) for the conversion period of batches of DP300 Early Exotherm
0
20
40
60
80
100
120
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
Temp(C)
FS 26 NFS 26 FW 26 NFW 26 FS 24 NFS 24 FW 24 NFW 24
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7/30/2019 Fouling Temp Analysis
9/27
Contents Temp (C) for the conversion period of batches of DP300 Middle Exotherm
0
20
40
60
80
100
120
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
Temp(C)
FW 22 NFS 22 FW 22 NFW 22
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7/30/2019 Fouling Temp Analysis
10/27
Contents Temp (C) for the conversion period of batches of DP300 Late Exotherm
0
20
40
60
80
100
120
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
Temp
(C)
FS 23 NFW 23 NFW 23 FS 26 NFW 22
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7/30/2019 Fouling Temp Analysis
11/27
Contents Temp (C) for the conversion period of batches of DP300
0
20
40
60
80
100
120
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
Temp(C)
FS 23 FS 26 FS 26 NFS 26 FW 26 NFW 26
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7/30/2019 Fouling Temp Analysis
12/27
Contents Temp (C) for the conversion period of batches of DP300 produced on PV24
0
20
40
60
80
100
120
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
Temp
(C)
0
20
40
60
80
100
120
Temp
(C)
FS 24 NFS 24 FW 24 NFW 24
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7/30/2019 Fouling Temp Analysis
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Jacket Temp (C) for the conversion period of batches of DP300
0
20
40
60
80
100
120
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
Te
mp(C)
0
20
40
60
80
100
120
Te
mp(C)
FS 26 FS 26 NFS 26 FW 26 NFW 26 FS 23
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7/30/2019 Fouling Temp Analysis
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10 Point Moving Average TJacket (C) for the conversion period of batches of DP300
-20
-15
-10
-5
0
5
10
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
Temp(C
)
0
20
40
60
80
100
120
Temp(C
)
FS 23 FS26 NFS 26 FW 26 NFW 26 FS 26
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7/30/2019 Fouling Temp Analysis
15/27
Factors affecting Exotherm for a warm weather (Sept) fouling batch of DP300 produced on PV26
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
21:21:55
21:25:
47
21:29:39
21:33:31
21:37:23
21:41:15
21:45:07
21:48:59
21:52:51
21:56:
43
22:00:35
22:04:27
22:08:
19
22:12:
11
22:16:03
22:19:55
22:23:
47
22:27:39
22:31:31
22:35:23
22:39:
15
22:43:07
22:46:59
22:50:51
22:54:43
22:58:35
23:02:27
23:06:
19
23:10:
11
23:14:03
23:17:55
23:21:47
23:25:39
23:29:31
Time
U(kW
/m/C)
-150
-100
-50
0
50
100
150
200
250
Temp(C)
&Qjkt(kW)
U Jkt (kW/m/C) Contents T(C) Q Rn (kW) JKT inlet (Tin) Q Jkt (kW)
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7/30/2019 Fouling Temp Analysis
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LMTD (C) for the conversion period of batches of DP300
0
10
20
30
40
50
60
70
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
LMTD
(C)
0
20
40
60
80
100
120
Temp
(C)
FS 26 FS 26 NFS 26 FW 26 NFW 26 FS 23
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7/30/2019 Fouling Temp Analysis
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Q Jacket (kW) for the conversion period of batches of DP300
-200
-150
-100
-50
0
50
100
150
200
250
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
Q(kW)
0
20
40
60
80
100
120
Temp
(C)
FS 26 FS 26 NFS 26 FW 26 NFW 26 FS 23
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7/30/2019 Fouling Temp Analysis
18/27
Q reaction (kW) for the conversion period of batches of DP300
-200
-100
0
100
200
300
400
500
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
Q(kW)
0
20
40
60
80
100
120
Temp
(C)
FS 26 FS 26 NFS 26 FW 26 NFW 26 FS 23
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7/30/2019 Fouling Temp Analysis
19/27
U Jacket (W/m/C) for the conversion period of batches of DP300
0
100
200
300
400
500
600
700
800
900
1000
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
U(W/m
/C)
0
20
40
60
80
100
120
Temp
(C)
FS 26 FS 26 NFS 26 FW 26 NFW 26 FS 23
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7/30/2019 Fouling Temp Analysis
20/27
20 Point Moving Average U Jacket (kW/m/C) for the conversion period of batches of DP300
0
200
400
600
800
1000
1200
1400
1600
1800
2000
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
U(kW/m
/C)
0
20
40
60
80
100
120
Temp
(C)
FS 23 FS26 NFS 26 FW 26 NFW 26 FS 26
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7/30/2019 Fouling Temp Analysis
21/27
Instantaneous Mass conversion (kg) for the conversion period of batches of DP300
-10
0
10
20
30
40
50
60
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
Kgconv
ersion
-20
0
20
40
60
80
100
120
Temp
(C)
FS 26 FS 26 NFS 26 FW 26 NFW 26 FS 23
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7/30/2019 Fouling Temp Analysis
22/27
Instantaneous Mass conversion (kg) for the conversion period of batches of DP300
-10
-8
-6
-4
-2
0
2
4
6
8
10
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
Kgconv
ersion
20
30
40
50
60
70
80
90
100
110
120
Temp
(C)
FS 26 FS 26 NFS 26 FW 26 NFW 26 FS 23
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7/30/2019 Fouling Temp Analysis
23/27
Peak Aligned Instantaneous conversion (%) for the conversion period of batches of DP300
-2
-1
0
1
2
3
4
5
6
7
8
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
%conversion
20
30
40
50
60
70
80
90
100
110
120
Temp
(C)
FS 26 FS 26 NFS 26 FW 26 NFW 26 FS 23
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7/30/2019 Fouling Temp Analysis
24/27
Peak Aligned Instantaneous conversion (%) for the conversion period of batches of DP300
-2
-2
-1
-1
0
1
1
2
2
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
%conversion
40
50
60
70
80
90
100
110
120
Temp
(C)
FS 26 FS 26 NFS 26 FW 26 NFW 26 FS 23
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7/30/2019 Fouling Temp Analysis
25/27
Cumulative conversion (%) for the conversion period of batches of DP300
0
20
40
60
80
100
120
140
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
%conversion
0
20
40
60
80
100
120
140
Temp
(C)
FS 26 FS 26 NFS 26 FW 26 NFW 26 FS 23
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7/30/2019 Fouling Temp Analysis
26/27
Cumulative conversion (%) for the conversion period of batches of DP300
0
20
40
60
80
100
120
140
00:00
00:02
00:06
00:10
00:14
00:18
00:22
00:26
00:29
00:33
00:37
00:41
00:45
00:49
00:53
00:57
01:00
01:04
01:08
01:12
01:16
01:20
01:24
01:27
01:31
01:35
01:39
01:43
01:47
01:51
01:55
01:58
02:02
02:06
Time
%conversion
0
20
40
60
80
100
120
140
Temp
(C)
FS 26 FS 26 NFS 26 FW 26 NFW 26 FS 23
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7/30/2019 Fouling Temp Analysis
27/27
Conclusions
Fouling may be associated with inhibition as indicated by
delayed cumulative conversion
No link between fouling and time of year or ambient
temp
No apparent link between coldness of jacket causing
increase in fouling
Changing heat transfer coefficient determines when
batches exotherm but is not significantly linked to fouling
Fouling doesnt appear to be linked to plant loading.