Home | Search | Emissions | Pollutants | About the Database |
Accident # | 126265 |
State Police # | 10-05230 |
Accident Date | 2010-09-10 |
Report Date | 2010-09-15 |
Follow-up Date | 0000-00-00 |
Follow-up: | No |
Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
Propylene | 5 h 25 m | battery charger on Mark Ve control system | NO | NO | YES | 819.0 pounds |
Sulfur Dioxide | 5 h 25 m | battery charger on Mark Ve control system | NO | YES | NO | 8,726.0 pounds |
Benzene | 5 h 25 m | battery charger on Mark Ve control system | NO | NO | YES | 209.0 pounds |
Nitrogen Oxide | 5 h 25 m | battery charger on Mark Ve control system | NO | YES | YES | 1,099.0 pounds |
Ethylene | 5 h 25 m | battery charger on Mark Ve control system | NO | NO | YES | 1,052.0 pounds |
Accident Classified As: Reportable Quantity
Preliminary investigation findings for the event indicated a battery charger malfunctioned on the Mark Ve control system, causing a power disruption in the Olefins area. The olefin area's primary fractionator overhead compressor tripped as a result of the power disruption, and the primary fractionator overhead was routed to the flare system per design.
This event was caused by a battery charger malfunction that could not be anticipated.
Beginning at 10:20 am on 9/10/10 the plant experienced flaring. By 3:45 rates for all other olefins equipment were reduced, and flaring was minimized. Subsequent flaring from recovery and startup activities were authorized under Part 70 permit emissions limit. Unit rates were minimized to reduce flaring. Control system batteries were replaced and restart of the compressor was expedited to end the flaring. All batteries in this control system were replaced. This event is under investigation, with the aid of equipment manufacturers, to determine the root cause of the battery charger malfunction. All chemicals involved exceeded RQs.
Connect With Us: