Document XzE4zVqXpLyo5kqQx8an9Q8V4

Cconoco) Tr Interoffice Communication To From Date Kike Johnston M. W. Clayton June 19, 1986 Subject Benzene Analysis of Gasoline Tanks - Lake Charles Refinery The benzene content of Refinery base gasoline tanks and finish product gasoline tanks was determined. All of the tanks were below the five percent Tnav-fimim allowable concentration*. The tanks showing the highest levels of benzene were the reformate tanks and the super unleaded tanks which contain a high percentage of reformate. Tank Sample Date Gasoline Type Benzene 38 6-11-86 Light St. Run 77 6-13-86 No. 2 Reformate 85 6-13-86 FCC Gasoline - 98 6-13-86 Alkylate 99 6-12-86 Alkylate 33 6-11-86 No. 3 Reformate 78 6-13-86 Super Unleaded 64 5-27-86 Super Unleaded 65 6-09-86 Super Unleaded 80 6-13-86 Regular Leaded 25 6-01-86 Regular Leaded 32 5-29-86 Regular Leaded 92 6-08-86 Unleaded 93 6-13-86 Unleaded 31 6-05-86 Unleaded 0.93 . 3.47 0.94 0.10 0.10 4.14 " 1.79 3.18 1.49 1.86 1.65 2.36 1.87 0.29 2.12 r * Maximum allowable concentration for gasolines sales m.kj, cjudtzr____ M. W. Claytonw Analytical Chemist mr cc: PFM/DLW RJH/PAN/RLM RHC KWC/JJM/JI/FILE T. Waltrip - Ponca City SAL 000000947 LABORATORY NO 12-6-84 Attachment L-24-84 Sample: Sample Date: Sample No. Atlas Com. fPeunzoill /"Fyrolysis*\ Gasoline/ 12-5=^rtK$c'd) PC 1460 PONA Analysis by Carbon No., LV% Carbon No. Paraffins Naphthenes Aromat] c4 c5 C6 c7 C8 C9 Cio Cn Cl2 Total - 0.6 0.9 1.4 1.1 0.7 0.5 0.2 0.1 5.5 - 0.1 0.4 1.4 1.3 0.9 0.6 0.2 Trace 4.9 - C~24.IT 2070 16.8 15.8 3.3 1.3 0.1 82.2 Gravity, API @60'F 32.8 ASTM D-86 Dist., F Corrected to 760 mm Hg. ) IBP 5% Recovered 10% Recovered 20% Recovered 30% Recovered 40% Recovered 50% Recovered 60% Recovered 70% Recovered 80% Recovered 90% Recovered 95% Recovered EP Vol. % Recovered Vol. % Residue 129 170 182 199 214 228 247 270 296 311 339 353 365 99.0 1.0 Nitrogen, Total, PPMW n iSulfur, Total, Wt .% fl'OrflSR, Clear Clear 26 0.01 107.7 85.7 Olefins fr Trace '*0 1*1 6.3 7.4 ) SAL 000000948