Document pmLDe7XmyNLn9Ld17aN1DpMjD

ABDOO189784 SEMIANNUAL REPORT MARCH 1, 1980 THROUGH AUGUST 31, I98O CONOCO CHEMICALS COMPANY PVC PLANT ABERDEEN, MISSISSIPPI 61.70 (c) (1) No emissions from the control device (incinerator) exceeded 10 ppm vinyl chloride averaged over any hour period (commencing on the hour) during this reporting period. Emission requirements of 61.64 (a) (2), (b), (c), (d) and 61.65 (b) (1) (ii), (b) (5), (b) (6) (ii), (b) (9) (ii) are met by collecting, containing, and incinerating vents from these areas prior to their release to the atmosphere. The exhaust gas from the incinerator is measured continuously with a Honeywell multi point gas chromotograph. The exhaust gas from the incinerator is also sampled periodically (grab sample) and analyzed for vinyl chloride using Test Method 106. Results from these samples are given in Table I. 61.70 (c) (2) (i) The emission level prescribed in 61.64 (e) is attained by a stripping operation. The plant produces only one type of resin, that by the suspension process. The vinyl chloride content found in all samples required in 61.70 (c) (2) (i), averaged over each calendar day and weighted according to the quantity of each grade of resin processed by the strippers that calendar day is given in Table II. 61.70 (c) (3) Compliance with i 61.64 (a) (2) is attained by using standard operating pro cedures to strip the resin to less than 400 ppm vinyl chloride and to purge vinyl chloride from the reactor vapor space to meet the reactor opening loss requirement as described in Section VI of the Compliance Manual submitted to your office August 14, 1978. * ABDOO189785 TABLE I INCINERATOR STACK SAMPLES SEMIANNUAL REPORT MARCH 1, 1980 THROUGH AUGUST 31, 1980 CONOCO CHEMICALS COMPANY PVC PLANT ABERDEEN, MISSISSIPPI DATE OF SAMPLE 3/4/80 4/7/80 4/15/80 4/22/80 5/16/80 5/23/80 5/30/80 6/6/80 6/27/80 7/3/80 7/H/80 7/25/80 8/1/80 8/8/80 8/15/80 8/20/80 8/28/80 TEST METHOD 106 PPM VCM BY VOLUME 0.3 1.9 2.0 2.4 0.3 1.0 0.8 1.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 ABDOO189786 TABLE I I STRIPPED SLURRY RESIDUALS SEMIANNUAL REPORT MARCH 1, 1980 THROUGH AUGUST 31, 1980 CONOCO CHEMICALS COMPANY PVC PLANT ABERDEEN, MISSISSIPPI WEIGHTED AVERAGE RESIDUAL VINYL CHLORIDE CONCENTRATION IN STRIPPED SLURRY __________PPM VCM, DRY BASIS____________________ MONTH DAY March April May H June July 1 292 273 101 15A 388 2 378 298 155 173 187 3 275 179 110 20A A jtzk. 328 105 171 335 5 276 308 87 259 6 250 251 12A 152 28A 7 35L. 256 1OA 192 181 8 ML 229 210 16A 196 9 - 237 195 233 178 10 358 160 160 190 188 11 228 20A 163 123 178 12 A10. 261 150 22A 16A 13 233 2 72 1A9 179 225 1A jiQfl- 196 199 170 130 15 2A8 165 193 81 198 16 226 258 177 191 17 313 215 ' 2A2 * 162 18 26A 362 351 it 181 19 253 229 159 165 20 305 323 172 it 191 21 178 179 175 it 162 22 250 163 202 a 13* 23 20A 199 257 163 107 iocr2A 259 1099'- 326 198 171 25 101 289 352 209 26 18A 233 * 80 303 27 191 350 261 201 2A2 28 207 1A9 2AA 160 25A 29 130 137 113- 226 163 30 380 71 210 381 219 31 281 173 2A7 * No Production On This Date Auqust 196 238 205 352 176 132 1A2 193 169 17* 181 156 2A7 196 153 1A8 128 125 315 IA6 292 35A 378 182 78 185 197 20A 1A5 110 125