Document 1gzVRerZBgN84vZ3JjQomoV0m
tennecoNTER-OFFICE MEMO CHEMICALS, INC
To W.C. Champion
AT Burlington
from F.W. Kanzler
AT Burlington
subject Reactor Steam Evacuation Operator Exposure During Reactor Opening
\ Date September 23, 1975
copy to R.H. Mathis L. Medeiros W. Miringoff J.W. Poarch
/File
In support of the subject program, charcoal tube personal monitoring samples were taken for the duration of the program, as well as for three days after the resumption of normal evacuation procedures. Hie aim of the sampling was to establish, if any, differences of operator VCM ex posures while opening reactors.
Tables I and II list the data for reactor steam evacuation and normal evacuation respectively. Table III is a listing of the weighted aver ages of the charcoal tube results shown in Tables I and II, It should be noted that only limited data is available for each resin type. The available data indicates, however, that lower average exposures occur when the reactors are steam evacuated. On a plant-to-plant basis, it is shown that the Copolymer Plant shows no great differences in exposures for the two evacuation procedures. Reactor openings during BR-501 runs in the Homopolymer Plant, in contrast, seem to be considerably affected by the type of reactor evacuation.
Attachments (3) FWK/jst
F.W. Kanzler
COLOR!TE 009889
TAB!*" I VCM EXPOSURE DURING REACTOR OPENING
REACTOR STEAM EVACUATION REACTOR HEADSPACE AND CHARCOAL TUBE RESULTS
Copolymer Plant
Date
9/8/75
tr tr tt tr tt
9/11/75
tt tt tr
Homopolymer Plant '
9/8/75
tt
tt
tt
9/11/75 tt
tt
9/12/75
tt tt
11
Reactor Number
7 6 9 5 4 1 4 9 2 1
14 16 13 15 14 17 13 14 11 16 10
Batch Number
3371 3372 3373 3374 3375 3376 3417 3418 3419 3420
3123 3124 3125 3126 3164 3165 3166 3175 3177 3178 3180
Resin Type
314
tt tt tt tt Tt
391
tt tr tr
10R
tt rt rt
175
tt Tt
501
tt
TT
Tt
VCM, ppm____________
Headspace
Charcoal Tube
23200 63700 19500 20800
6000 8200 2700 3200 5200 3100
3.0 4.7 2.8 `3.0 2.1 2.1 3.0 5.6 3.2 3.4
9700 3100 3700 1500 3900 4800/5500 3300/3600 6000 1700 5400
700
2.5 1.3 2.5 4.3 4.8 5.9 5.4 1.1 3.7 3.3 4.3
Sample Time, minutes
9 10 11 11 12
9 8 10 10 11
10 13 10 10 12 ..r* 17 13 12 12 10 15
COLORITE 009890
F. W. Kanzler 9/23/75
TABLF II VCM_EXPOSURE DURING REACTOR OPENING
NORMAL REACTOR EVACUATION CHARCOAL TUBE RESULTS
Copolymer Plant
Date
9/16/75
t!
9/17/75 9/18/75
tt
Homopolymer Plant
9/16/75
tr
9/17/75 ?!
9/18/75
t!
Reactor Number
1 5 3 4 7
15 12 11 IS 14 17
Batch Number
3497 3498 3514 3524 3527
3230 3232 3245 3246 3257 3259
Resin Type
315
Tt Tt tt It
501
TT rt tt tr tt
VCM, ppm
Charcoal Tube
3.0 4.0 1.2 2.1 1.4
5.2 11.0
4.1 1.0 25.0 6.5
Sample Time minutes
10 10 11 16 12
10 9
11 12 11 10
COLORITE 0 0 9 8 9 1
F.W. Kanzler 9/23/75
TABLE 'TI VCM EXPOSURE DURING REACTOR OPENING WEIGHTED AVERAGES OF CHARCOAL TUBE RESULTS
Steam Evacuation:
Copolymer
Homopolymer
Normal Evacuation:
Copolymer Homopolymer
Resin Type
314
ft
391 All Types
10R 175 501 All Types Total
315
501 Total
N
4 2 4 10
4 3 4 11 21
5
6 11
Average VCM, ppm
3.4 2.1 3.8 3.3
2.6 5.4 3.1 3.7 3.5
Remarks
batch #3371 - 3374 batch #337-5 - 3376
2.3
8.7 5.6
COLORXTE 009892
F.W. Kanzler 9/23/75