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Motiva Enterprises (1406), Norco
Causal Factor: Start Up, Shut Down
| LDEQ Accident Number Accident Date |
Point Source(s) | Notes | Amount of Release |
| 92925 2006-12-28 | West Ops Ground Flare FG-201 (EPN #9-84) | Cause: Flaring due to an unexpected shutdown of a propylene refrigerant compressor in Shell Chemical's GO-1 Process Unit. Shutdown in Shell Chemical's GO-1 Process Unit was due to a high vibration alarm. The compressor is designed to shutdown when it experiences high vibration to prevent damage to the compressor. Followup: Yes Notes: GO-1 operations immediately restarted the compressor, but the process unit upset resulting from the shutdown led to flaring at the West Operations Ground Flare. GO-1 operations made adjustments to safely return the process unit to normal conditions. Flaring continued as needed until the unit returned to normal conditions. | Carbon Monoxide: 3,427.0 pounds Nitrogen Oxide: 85.0 pounds Particulate Matter: 119.0 pounds Sulfur Dioxide: 159.0 pounds Volatile Organic Compounds (VOCs): 1,217.0 pounds 1,3-Butadiene: 63.0 pounds Hexane: 4.0 pounds Benzene: 21.0 pounds Toluene: 4.7 pounds |
| 92470 2006-12-07 | West Ops Ground Flare (EPN# 9-84) | Cause: Flaring at West Ops Ground Flare (EPN #9-84) occurred due to a shut down and start up of GO-1 Process Unit to repair a leaking heat exchanger. Followup: No Notes: Letter states that emissions were BRQ. Emission point was from Motiva Norco's flares. However, the root cause of the accident occurred in Shell Chemical Plant. | |
| 92253 2006-11-25 | Cause: Verbal notification on 11/25/06 states flaring was due to starting Motiva Norco unit up from a turn around. Followup: Yes Notes: Verbal notification on 11/25/06 states that intermittent flaring occurred from both coker FE-401 and Utilities East flare FE-501, both of which are elevated flares. | ||
| 90191 2006-08-23 | Coker Flare (EPN# 2-84) | Cause: Flaring occurred at the S-2 Incinerator due to the shutdown and restart and Motiva's Sulfur Plant No. 3. Followup: Yes Notes: Data gathering to perform calculations and incident investigation is ongoing as of 08/30/06. | |
| 89273 2006-07-20 | RCCU CO Heater (EPN# 2-91) | Cause: Motiva's Residual Catalytic Cracking Unit (RCCU) was shutdown and restarted, releasing materials through the RCCU flue gas scrubber stack. During the RCCU shutdown, incomplete combustion of CO was attributed to high oxygen content in the CO heater firebox. The increase in oxygen was a result of cooling air being directed into the CO heater's CO annulus vua the unit's I-5 trip system. This system was tripped (open) during the initial shutdown of the unit, and was not reset (closed) prior to the restart of the RCCU. Followup: No Notes: Operations notified the Site Supervisor and took steps to minimize emissions resulting from the release. The cooling air to the CO annulus was reset and closed. Existing RCCU operating procedures regarding the rest of air to CO annulus have been amended. | Carbon Monoxide: 2,906.8 pounds Sulfur Dioxide: 1,131.7 pounds Volatile Organic Compounds (VOCs): 56.1 pounds |
| 93424 2007-01-22 | None Reported | Cause: Unexpected shutdown of a compressor in Shell's GO-1 Process Un Followup: Yes Notes: None. |
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