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Accident # | 153521 |
State Police # | 14-00453 |
Accident Date | 2014-01-27 |
Report Date | 2014-02-03 |
Follow-up Date | 0000-00-00 |
Follow-up: | No |
Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
Sulfur Dioxide | 51m | NO | YES | NO | 6,497.0 pounds | |
Propylene | 51m | NO | NO | YES | 137.0 pounds |
Accident Classified As: Reportable Quantity
On January 27, 2014 at approximately 4:08 PM, the compressor GLA-3X at the PCLA (a fluid catalytic cracking unit) unit experienced an unplanned shutdown, causing material to be released to the site's flare gas system. Preliminary investigation results indicate the shutdown was caused by a higher than normal concentration of condensable distillate in a level instrument chamber as a result of inadequate steam tracing. The excess liquid bridged between the chamber wall and the radar rod, resulting in a false high level reading which tripped the compressor. The incident is under investigation to determine the exact root cause.
Pending investigation results.
Upon compressor shutdown, the level instrument was bypassed to mitigate a repeat event. The incident is under investigation to determine the exact root cause and to provide mitigating steps to prevent recurrence.
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