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CITGO Petroleum (1250), Lake Charles
Causal Factor: Process Upset
| LDEQ Accident Number Accident Date |
Point Source(s) | Notes | Amount of Release |
| 81431 2005-08-17 | B-7 FLARE | Cause: Unexpected shutdown of JC-36 Compressor at the B-Topper Unit. Followup: No Notes: Claims emission was below RQ | |
| 81140 2005-08-11 | Tank 521 | Cause: The light ends caused the tank to pressure up to above the set pressures of the control valve Followup: No Notes: The release was a mix of propane, butane and butylenes. There is a possibility that the PSV relieved prematurely. It has been pulled out of service and sent for testing. | Flammable Gas: 1,248.0 pounds |
| 81175 2005-08-10 | FLARE - B-12 Unicracker | Cause: Overpressure of the E101 tower and a PSV relieved pressure to the flare - root cause of the upset was an incorrect and unresponsive transmitter on pressure controller Followup: Yes Notes: Reduced pressure for the pressure safety valve to reseat. RCFA underway. No offsite impact. | Sulfur Dioxide: 1,077.0 pounds |
| 81115 2005-08-08 | B-9 FLARE | Cause: Sulfolane Unit over pressurized Followup: No Notes: Claims emission was below RQ | |
| 81074 2005-08-06 | B-9 Flare | Cause: Sulfolane Unit Followup: No Notes: Claims emission was below RQ | |
| 80796 2005-07-26 | B-9 Flare | Cause: light ends over-pressurizing in Sulfolane Unit Followup: No Notes: Claims emission was below RQ | |
| 79366 2005-05-25 | B-12 FLARE | Cause: unexpected short time loss of the Recycle Hydrogen Compressor JC-1B during start up of the Unicracker Unit Followup: Yes Notes: Claims emission was below RQ | |
| 79154 2005-05-17 | B-11 FLARE | Cause: -Flaring of Coker II Fractionator Overhead Gas from upset of E201 Tower Followup: Yes Notes: Facility failed to comply with control equipment regualtion - any deveice, operating procedure or abatement scheme used to prevent or reduce air pollution. The valve should not have allowed water to infiltrate the coke drum. Will revise operating procedures, train operators on trouble shooting skills; and install a flow indicato | Sulfur Dioxide: 6,800.0 pounds |
| 78701 2005-05-03 | Wastewater Treatment Plant | Cause: while placing a line back into service athte h Wastewater Treatment Plant a relief valve overpressured and released oil to ground and surrounding ditches Followup: Yes Notes: 5 gallons went into the Indian Marais. Booms, absorbent pads, vacuum tru | Slop Oil: 630.0 gallons |
| 77213 2005-03-01 | B-6 Flare | Cause: debutaizer Tower at the Straight Run Fractionation Unit Followup: No Notes: Claims emission was below RQ | |
| 77237 2005-02-26 | No Information Given | Cause: B Topper upset Followup: No Information Provided Notes: CITGO failed to provide a written report. Investigation pending by DEQ letter dated 8/26/06 | |
| 76802 2005-02-08 | FLARE | Cause: system overpressure through a pressure relief valve at the MTBE Unit Followup: No Information Provided Notes: Claims emission was below RQ | |
| 92656 2006-12-14 | tail gas vent stack EQT 298 and 3XX-J5 | Cause: upset at sulfur recoovery unit Followup: No Notes: Had the contractor performing the RATA advised CITGO sooner that the H2S emissions were higher than expected, operational steps could have been taken earlier in the d | Hydrogen Sulfide: 159.0 pounds |
| 92251 2006-11-26 | B-5 Flare | Cause: upset of the E1 Tower at the C-Topper Unit Followup: No Notes: Claims emission was below RQ | |
| 101044 2007-11-14 | B-700 Combustor at the Waste Water Treatment Plant | Cause: @ B-700 Combustor causes fire Followup: No Notes: Flaring catches grass and a truck on fire. DEQ on 11/27/2007 defers incident until futher investigation can be completed. | |
| 100759 2007-11-04 | Lube and Wax Plant Flare | Cause: failed PSV release to CLAW flare Followup: No Notes: CITGO letter states that no RQ's were exceeded | |
| 99160 2007-09-02 | Central Amine Unit ; Sulfur Recovery Units | Cause: Followup: No Notes: Upset of Central Amine System and Sulfur Recovery Unit yields high H2S levels in the refinery's fuel gas | |
| 98865 2007-08-23 | Tank 145 | Cause: See notes Followup: No Notes: Check valve stuck open at the A Reformer charge pump causes reverse flow of hydrogen into tank causing it to upset. | Naphthenic Crude: 22,971.0 pounds Flammable Gas: 5,289.0 pounds Benzene: 20.0 pounds |
| 98548 2007-08-09 | B-7 Flare ; B-8 Flare | Cause: Followup: No Notes: B-7 flaring stems from shutdown of the JC-51 Compressor at the FCCUs; B-8 flaring stems from upset at C4 Recovery Unit | |
| 96456 2007-05-23 | Sulften tail gas treatment unit | Cause: See notes Followup: No Notes: Leak in a cross exchanger increased hydrogen sulfide emissions from the absorber vent. | |
| 94896 2007-03-26 | Coker 1 Unit; F201A Drum; B5 Flare | Cause: Unit upset and the flaring of process gas Followup: No Notes: | |
| 93789 2007-02-07 | Coker 1 Unit | Cause: Unit upset and the flaring of process gas Followup: No Notes: | |
| 93473 2007-01-25 | Lube and Wax Plant Duosol unit | Cause: Unit upset and the flaring of process gas Followup: No Notes: Claims emission was below RQ; verbal report indicates that Terry Chretien of Citgo insists that the release had not gone off site even though it was a release to air. | |
| 109636 2008-09-28 | Tail Gas II Unit | Cause: upset in the A- Sulfur Recovery Unit Followup: Yes Notes: Incident initiated by hydrocarbons in the acid gas feed to the A-Sulfur Recovery Unit; An RCFA has begun to identify the root cause of the incident and establish action items to prevent recurrence. | Hydrogen Sulfide: 1,149.0 pounds |
| 102967 2008-02-09 | Propane railcar | Cause: pressure safety valve release from a loaded propane railcar and depressuring of contents of car Followup: No Notes: CITGO letter states that the emissions were BRQ | |
| 102962 2008-02-09 | Propane tank car UPLX 953656 | Cause: pressure safety valve release from a loaded propane railcar and depressuring of contents of car Followup: No Notes: verbal report with v. little information | Flammable Gas: 1,000.0 pounds |
| 112841 2009-02-18 | B-8 Flare in C4 unit | Cause: Release of Sour Gas from B-8 flare due to the lifting of a pressure valve in the C4 Recovery unit at the CITGO Lake Charles Manufacturing Complex where the E10 tower was lifted and reset itself. Followup: Notes: C4 unit at the E10 tower reset itself. Material was discharged into surrounding area air. | |
| 112786 2009-02-16 | B-16 flare in Ultra Low Sulfur Diesel Unit B-16 flare at Ultra Low Sulfur Diesel Unit | Cause: Sour Gas flare from the B-16 flare caused by the lifting of a pressure relief valve in the Ultra Low Sulfur Diesel unit at CITGO Lake Charles Manufacturing plant. Followup: Notes: No information given. | |
| 128390 2010-12-29 | FLARE: Flare B-11 & B-12; Coker 2 Unit | Cause: "...they shutdown a gas compressor at the coker 2 unit due to liquid in a drum....An unknown amount of hydrogen sulfide and sulfur dioxide was released to the flare." FLARE. Followup: No Notes: BRQ. Refinery letter states that no reportable quantities were exceeded. No additional information given. | |
| 128354 2010-12-27 | FLARE: F107 drum to B1104 flare | Cause: "...Citgo was starting up the crude vacuum unit [1] when the F107 drum pressured up and went to the B1104 flare at the refinery. An unknown amount of natural gas and hydrogen sulfide was released in the incident." FLARE. Followup: No Notes: BRQ. Refinery letter states that no reportable quantities were exceeded. No Information given. | |
| 122280 2010-03-22 | PFU flaring | Cause: "mechanical failure of a release valve or process safety valve" Followup: No Notes: no information given | |
| 121535 2010-02-17 | FLARE: B8 flare | Cause: relief valve at the C4 unit released sending sour hydrocarbons to the B8 flare. FLARE. Followup: Yes Notes: no info given | |
| 121339 2010-02-08 | B-7 flare | Cause: recovery unit lost a compressor, had to flare sour gas hydrocarbons
no detailed analysis of incident Followup: No Notes: release secured | |
| 121160 2010-01-30 | FLARE: B12 flare | Cause: unicracker unit shut down--high temperature on a D3 reactor resulted in a 100lb system opening up causing materials to be released to flare
File contains no DEQ report, only refinery letter with no details of incident indicating it is ongoing and under investigation.
Specific calculations promised in follow-up letter to be sent by 2/28/10. Followup: No Notes: air monitoring inside & outside perimeter | |
| 132807 2011-07-30 | FLARE-Ultra-low Sulfur Diesel hydrotreater, B-16 flare | Cause: Ultra-low Sulfur Diesel Hydrotreater (USLD) unit upset led to unplanned shutdown and flaring. Followup: No Notes: BRQ. No information given regarding remedial actions. No LDEQ report included. Notified the SPOC 24:36 after incident occured. | |
| No LDEQ Reported 2011-03-09 | Barge at CITGO LCMC A-Dock | Cause: Sulfer was spilled from a contractor's barge during transfer operations at the CITGO LCMC A-Dock. Followup: No Notes: BRQ. No Information given regarding remedial actions. Refinery letter only. No LDEQ report included in file. | |
| 129671 2011-03-06 | FLARE: B11 and B12 Flare | Cause: FLARE. State police reports states that fill pressure of the flared gas recovery system was exceeded and resulted in flaring from the B11 and B12 flares. No root cause is known. Material went off-site through the flare and then air. Followup: No Notes: BRQ. No Information Given. Refinery letter and SPOC report only. No LDEQ report. | |
| 128815 2011-01-22 | FLARE: C-4 Recovery JC101A Compressor to B7 Flare | Cause: LDEQ states that the facility experienced a process problem due to a tower over-pressurizing. Followup: No Notes: BRQ. LDEQ report states that "operating data shows" that no reportable quantities were exceeded. Workers had to manually open the relief to the flare, and the C-4 Recovery JC101A compressor was shut down for a short period of time. | Hydrogen Sulfide: 5.0 pounds |
| 145571 2012-12-26 | Coker 2 Unit | Cause: A compressor upset on the Coker 2 Unit caused the gases to go to the flare. Followup: No Notes: An unknown amount of sulfur dioxide, hydrogen sulfide, and nitrous oxide went to the flare as a result of this incident. Air monitoring was being preformed up to the fence line and readings are unknown at this time. | |
| 138676 2012-04-08 | Oil Movement D-Area Tank 75 | Cause: A release valve used to draw water leaked from an overflow. There was a spill of 11.1 barrels of contaminated water from Oil Movement D-Area Tank 75 because an open release valve overflowed. Followup: No Notes: Valve was closed. Contaminated soils will be excavated and disposed of. There is no incident report in the file. Offsite was impacted. | Oil: 466.2 gallons |
| 137864 2012-03-10 | Sewer of C-Cat unit | Cause: The process sewer in the C-Cat Unit of the facility backed up and catseed (heavy gas oil) was discharged to soil. Followup: No Notes: The problem was contained and clean-up occurred. | |
| 147294 2013-03-13 | Coker I JC-106 | Cause: On March 13, 203 CITGO Lake Charles Manufacturing Complex had a flaring event involving the Coker 1 JC-106 compressor. The JC-106 compressor shut down requiring flaring of sour gas through the b5 flare. Hydrogen sulfide and nitric oxide were mentioned in the LDEQ report. Followup: No Notes: The refinery letter stated that no reportable quantities had been exceeded, with no additional information on specific substances. |
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