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Accident # | 90226 |
State Police # | 06-05331 |
Accident Date | 2006-08-24 |
Report Date | 2006-08-29 |
Follow-up Date | 0000-00-00 |
Follow-up: | No |
Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
Hexane | 39h 52m | E-552A and E-553A Exchangers on the Coker | NO | NO | NO | 2,054.0 pounds |
1,3-Butadiene | 39h 52m | E-552A and E-553A Exchangers on the Coker | NO | NO | YES | 96.0 pounds |
Hydrogen Sulfide | 39h 52m | E-552A and E-553A Exchangers on the Coker | NO | NO | NO | 4,578.0 pounds |
Volatile Organic Compounds (VOCs) | 39h 52m | E-552A and E-553A Exchangers on the Coker | NO | NO | YES | 66,388.0 pounds |
Benzene | 39h 52m | E-552A and E-553A Exchangers on the Coker | NO | NO | YES | 443.0 pounds |
Highly Reactive Volatile Organic Compounds (HRVOCs) | 39h 52m | E-552A and E-553A Exchangers on the Coker | NO | NO | NO | 177.0 pounds |
Accident Classified As:
the E-552A and E-553 Exchangers on the Coker were discovered leaking into Cooling Tower #44. The leak on the E-553A was stopped 20 mins. Later while the leak on the E-552A continued until August 26th, 2006. The leaks are believed to have been caused by accelerated corrosion
This incident was not preventable because inspection reports on these exchanger bundles indicate that both failed prematurely. Remedial Measures - The existing tube bundles will be repaired/replaced as necessary. Metallurgy of these exchangers will be upgraded. Reportable quantities for volatile organic compounds, hydrogen sulfide, and benzene were exceeded. Note: in the follow up report, it was found that the reportable quantities for hexane, 1,3 Butadiene, and highly reactive volatile organicpounds were exceeded as well. The previously reported level of volatile organic compounds was 8800 and was later found to be 66388, for hydrogen sulfide it was 901/4578, and for benzene it was 59/43
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