Document 2N294nzV50gEOz8216vna2jX7

H. J. Day - 0. 0. December 9* 1968 Aroclor/Biphenyl W. A. Kuhn 1H. S. Bergen^ . it. sample H. V. Tippee Hill Williams - Anniston 2 Extra A short while back you asked that someone put the whole picture on Aroclor/Biphenyl together as it relates to a possible Biphenyl production interruption. Bolling this down to simple terms is not easy, but here's a try. POSSIBLE CAUSES OP MAJORBIPHENYL PRODUCTION LOSS Description Equivalent Duration of Loss (Biphenyl Plant Wks.) 1. Tubular Unit Fire Box Explosion 7 2. Explosion Fire/Benzene Strip Col. 9 3. Rapid Preheater Bundle Failure .4 Destruction of Furnace Tubes .5 Loss of Biphenyl Column Trays . 6 7 4 Normal Inventories Available Biphenyl Supply (in 1? lbs.) At WOK At Ann!8ton At Wood Treating Loaded Cars Flaked in Whse. 0.8 1.5 1.4 0.5 0.5 4.7 ft lbs. Based on 1969 sales and use for Biphenyl, this constitutes a 25-day supply. Cont'd DSW 200546 STLCOPCB4058610 V. A. Kuhn Page 2 December 9, 1968 Llq, Aroclors Supply (In B lbs.) At Anniston At WOK 3.5 2.5 6.0 Based on 1969 a.l and use for Aroclors this constitutes a 25-day supply. Therefore, if we carry normal inventories as above, the follow ing coverage is available: For Biphenyl Sales For Aroclor Sales Biphenyl 3* 3fc Aroclors wks. -3L 7 wks. Only one major cause of Biphenyl production loss materially exceeds this Aroclor coverage, i.e.. Explosion Fire/Benzene Strip Col. which would put Biphenyl out for an equivalent of 9 wks. We are short 2 wks. Aroclor coverage to give protection for all possible causes of Biphenyl outage. Decisions to be made and some recommendations: 1. Carry a much larger stock of flake for sales. This would allow an immediate cessation of flaking in case of an incident and reservation of all molten Biphenyl for Aroclors. Another million pounds here would add almost a week to the 7 or cover both sales and part of the Aroclors. 2. Carry more than a normal stock of Aroclors, Pydrauls, etc. in drums. (Minlmums could all be manually adjusted upward. All bulk tanks must carry a working outage.) 3. Assume the probability of a #2 loss 1b so slight that present inventories are ample. 4. Secure a 2.5 K lb. Biphenyl storage tank. Cont1d DSW 200547 STLCOPCB4058611 W. A. Kuhn Page 3 December 9, 1968 5. No thought In all thlB has been given to the storage of Santowax R. We use 1.5 K lbs./no. Storage Is available for only about 700,000 lbs. Aroclor 5460 and HB-40 production could go on for only 2 weeks at the best! Ky own feeling is that we combine the thoughts In Ideas #1, 2, 3 and 5. I would consider we could approach 9 wks. coverage this way. No. 5 definitely needs consideration. 1 welcome a discussion with you and Howard Bergen. HJD/sJw H. J. Day I i i DSW 200548 STLCOPCB4058612