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Shell Chemical East (26336), Norco
LDEQ Accident Report
| Accident # | 155666 |
| PDF Available |  PDF |
| State Police # | 14-01897 |
| Accident Date | 2014-04-29 |
| Report Date | 2014-05-06 |
| Follow-up Date | 2014-06-24 |
| Follow-up: | Yes |
Pollutants Released
| Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
| Carbon Monoxide | 33m | Methyl Acetylene and Propadiene Converter | NO | YES | NO | BRQ |
| Nitrogen Oxide | 33m | Methyl Acetylene and Propadiene Converter | NO | YES | YES | BRQ |
| Particulate Matter | 33m | Methyl Acetylene and Propadiene Converter | NO | YES | NO | BRQ |
| Volatile Organic Compounds (VOCs) | 33m | Methyl Acetylene and Propadiene Converter | NO | NO | YES | BRQ |
| Propylene | 33m | Methyl Acetylene and Propadiene Converter | NO | NO | YES | BRQ |
Accident Classified As: Below Reportable Quantity (BRQ)
Cause of Problem: Maintenance/Procedures
On April 29, 2014 Shell Chemical's GO1 Unit flared off speciation propylene at the West Operations Ground Flare (WOGF) as a result of an unexpected loss of hydrogen to the Methyl Acetylene and Propadiene (MAP) Converter. The transmitter that controls the total feed flow to the MAP Converter and the instrument protective function transmitter closed during maintenance activities. This caused the valves controlling hydrogen flow to close and hydrogen flow to the MAP Converter suddenly stopped.
Discharge Preventable - No Information Given
Notes/Remedial Actions
No Information Given
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