LA Bucket Brigade : Refinery Accident Database

ExxonMobil Chemical Plant (286), Baton Rouge

Releases in 2010

LDEQ Accident Number Accident Date	Point Source/Release	Cause	Notes
128380 2010-12-29	Point Source(s): knockout drum KD-05 on Ethylene Clarification unit Pollutant(s): Ethylene - 304 pounds 1,3-Butadiene - 13 pounds Benzene - 16 pounds	Cause of Problem: Process Upset A knockout drum KD-05 on the Ethylene Clarification unit was experiencing high liquid levels. This increase in material in the quench water drum resulted in a disruption of quench water flow and led to increasing unit temperatures. Compressor HC-01 then tripped due to high temperature which caused unit material to be routed to the flare system, by design, until the compressor could be restarted.	To reduce the liquid levels quickly, operations personnel opened a bypass valve and routed material to a downstream quench water drum, HD-02. The RQs for ethylene, benzene, and 1-3 butadiene were exceeded. There was a light precipitation at the time of the event. This incident and responses to potential future incidents will be reviewed with operations personnel.
128350 2010-12-27	Point Source(s): MVTK 08 & 09 pressure vacuum vent Pollutant(s): Butadiene - BRQ Benzene - BRQ	Cause of Problem: Process Upset Tank pressure increased and the vent opened to relieve the pressure and then closed back up.	No RQs were exceeded due to prompt incident response.
128125 2010-12-12	Point Source(s): Seal on vapor recovery system Pollutant(s): Benzene - BRQ	Cause of Problem: Seal or Gasket A seal malfunction corrected itself.	A potential maximum of 10 pounds of Benzene could have been released but the calculations had not been completed by the time of the call. Incident initiated and comments added during file review after inspection of Exxon Refinery on 8/31/11. This incident occurred at the Exxon Chemical plant. According to a written notificated faxed from Exxon Corp, there was promt incident response to mitigate the event durations, they have determined that no RQS were exceeded. The NRC notification regarding this event was made greater than 1 hour after incident discovery due to telephone difficulties.
128038 2010-12-08	Point Source(s): Pollutant(s): Benzene - BRQ Hydrogen Sulfide - BRQ	Cause of Problem: Equipment Failure A compressor tripped offline at the Benzene Hydro-Finer and caused the automatic shut down procedure to be activated.	The release resulted in a temporary localized shelter in place.
127927 2010-12-01	Point Source(s): monoethanolamine system (MEA) at the Refinery Pollutant(s): Ethylene - 7,346 pounds Nitrogen Oxide - 2,663 pounds	Cause of Problem: Process Upset The plant receives feed streams from the Baton Rouge Refinery. The Refinery experienced an upset of its MEA system on 11/30 (SPOC #10-06865). This incident caused elevated hydrogen sulfide content of some of the plant's feed streams, resulting in off-specification products.	These materials were required to be diverted to the flare system. The plant's unit operations were adjusted to minimize emissions and incident duration. The refinery's scrubbing tower T-585 was removed from service to stabilize the MEA system, allowing the plant's feed streams to return to normal hydrogen sulfide concentrations. Successful conclusion of the Refinery incident resolved the root cause of the Chemical Plant feed stream issues. Unit procedures will be evaluated for consideration of potential incidents and responses of off-specification feed streams. RQs for ethylene and nitrogen oxide were exceeded.
127749 2010-11-22	Point Source(s): suction drum Pollutant(s): Propylene - 0	Cause of Problem: Start Up, Shut Down there was a high level on a suction drum and it tripped the recycle compressors. The flaring event was due to start-up activities, and all emissions were permitted.	An unknown quantity of propylene was released. There was no unauthorized discharge.
127786 2010-11-19	Point Source(s): Exchanger #E301 on oxo-alcohol unit Pollutant(s): Heptene - BRQ	Cause of Problem: Seal or Gasket The oxo-alcohol unit has a heptene leak at the exchanger.	Leak was noted at 9 pm and was leaking at 100 lbs/hr. They used steam to volatilize/knockdown the heptene to keep it in a localized area. The facility did not have a shelter in place and the chemical did not leave the facility. Plant called because they believed the RQ might be exceeded before the repair was complete. Due to no reported excursion of chemical from the plant and no shelted in place no response was deemed necessary at that time. LDEQ requested that any change in situation be notified to re-evaluate the situation and required response. The plant's written report said no reportable quantities were exceeded.
127573 2010-11-09	Point Source(s): unit with sulfuric acid Pollutant(s): Sulfuric Acid - 3,750 pounds	Cause of Problem: Piping or Tubing They stated that a unit that was running with sulfuric acid developed a small leak in it.	It was contained in their sewer system, never left their site. Faculty stated that no RQs were exceeded.
127493 2010-11-08	Point Source(s): insulated line Pollutant(s): Ethylene - BRQ Propylene - BRQ Ethane - BRQ Propane - BRQ Acetylene - BRQ	Cause of Problem: Piping or Tubing Intial report said that there was a small leak on an insulted line resulting in an unknown release of the listed chemicals.	After further investigation of the small leak, no reportable quantities were said to be exceeded.
127175 2010-10-21	Point Source(s): Bela 5 unit Pollutant(s): 1,3-Butadiene - 20 pounds	Cause of Problem: Piping or Tubing A heat exchanger leak into a closed loop system was suspected to be causing a unit upset, which resulted in flaring.	Two instances of flaring from the 1,3-Butadiene unit, BELA-5, occurred within a 24 hour period causing an exceedance of RQ. At approximately 4:58 flaring of the BELA-5 finishing tower overhead began. The heat exchanger is used to heat unit feed and cool solvent. To stabilize the unit and end the release, feed to the unit was reduced. Flaring began again at approximately 6:42 am. Operations were modified to mitigate leak potential and use of flare. A plan to repair the exchanger, which will require a unit shutdown, is being developed. This incident was not preventable because it was caused by an unforseen bundle leak.
127137 2010-10-20	Point Source(s): WSD 10 drum Pollutant(s): Propylene - BRQ	Cause of Problem: Seal or Gasket Leak in the WSD 10 Drum	Initial report of a release of an unknown quantity of propylene due to a leak in the WSD 10 Drum. A written report from Exxon stated that no reportable quantities were exceeded.
127089 2010-10-15	Point Source(s): None Reported Pollutant(s):	Cause of Problem: Process Upset Release due to system contamination.	Their system was contaminated. They had to shut down the flare gas compressors and recover material from the system. Flaring as a result. Report says unknown chemical release but under reportable quantity. Unauthorized Discharge Notification Report was received by Surveillance Division on 10/26/10 stating that the flare gas compressors were restarted without incident and that no release occurred.
127055 2010-10-13	Point Source(s): HC-01 cracker compressor and 2nd stage safety valve Pollutant(s): Highly Reactive Volatile Organic Compounds - 107 pounds	Cause of Problem: Process Upset	Two events occurred at the plant within a 24 hour period. The combined emissions from the two events exceeded the RQ for HRVOCs (ethylene and propylene). On 10/13/10 at approximately 10:44 pm, HC-01 cracker compressor tripped, and all of the Ethylene Claification-West (ECLA-W) furnace effluent was routed to the wet flare system, prompting agency notifiation (LSP incident #10-05995). The investigation showed the root cause for the event was due to a loss of lube oil pressure to the compressor during a pump swap. The emergency controls automatically shut down the compressor to prevent damage. To end the release the compessor was restarted after the lube oil pressure was returned to appropriate levels. On 10/14/10 at approximately 10:45 pm, operators identified that the HC-01 2nd stage safety valve failed to reseat properly folowing the restart of the compessor, and it was allowing additional material to enter the flare system. To end this release, the safety valve was isolated. The total HRVOC release from these two events was greater than the 100 lb RQ. The plant said they would review and/or update procedures for swapping pumps and review this incident with unit operations personnel.
126830 2010-10-03	Point Source(s): None Reported Pollutant(s):	Cause of Problem: Piping or Tubing There was a tube leak inside of H furnace.	Smoke was visible and leaving the stack. Started at 6:40. They were trying to find the tube causing the leak and had technicians onsite. There was an internal leak in the stacks that caused the smoke. The smoke was secured. No mention of report from Exxon.
126833 2010-10-03	Point Source(s): compressor piping Pollutant(s): Propylene - 278 pounds	Cause of Problem: Corrosion The Ethylene Purification Unit was being surveyed using an optical imaging "HAWK" camera when a pinhole leak was detected coming from a pipe.	On 10/3/10 around 8:15 pm the plant experienced a propylene release. Because of the location of the release, scaffolding was required to allow access of the pipe. A clamp was installed on the pipe, which ended the release. A permanent repair was being evaluated. The release was due to unanticipated corrosion. RQs for propylene were exceeded.
126818 2010-10-02	Point Source(s): J fractionator Pollutant(s): Benzene - 10 pounds Butadiene - 10 pounds Ethylene - 100 pounds Propylene - 100 pounds	Cause of Problem: Piping or Tubing Pin hole leak in J fractionator.	Final reports say no reportable quantities were reached.
126520 2010-09-21	Point Source(s): Tank #BD24 at MEK unit Pollutant(s): Butane - 0	Cause of Problem: Equipment Failure A leak developed on top of tank #BD24 at the MEK unit.	Operators quickly shut down the tank. Fire monitors are spraying water to suppress vapors. They will depressurize the tank and fill with water to isolate the release. Medical personnel checked out operators with possible exposures. This took place at MEK Unit which is responsible for producing Methyl Ethyl Ketones.
126419 2010-09-15	Point Source(s): Methyl Ethyl Ketone unit Pollutant(s): Butane - 1,000 pounds	Cause of Problem: Seal or Gasket Nozzle on the drum leaked on the methyl ethyl ketone unit.	Fire water was used to disburse vapors. Estimated quantity of butane release was greater than 1000 lbs. No RQs were exceeded.
126317 2010-09-12	Point Source(s): None Reported Pollutant(s):	Cause of Problem: Start Up, Shut Down Exxon made a courtesy call to LDEQ due to permitted visible flaring associate with restarting the unit.	Flaring began 9/10/10. Startup activites were completely by 9/13/10 at 2 am. No details as to what was released through the flare.
126318 2010-09-12	Point Source(s): Furance A Pollutant(s): Gas Oil - BRQ	Cause of Problem: Equipment Failure Furnace A was in start up mode. There was a leak and the furnace was smoking.	The tried to find which pass malfunctioned.
126265 2010-09-10	Point Source(s): battery charger on Mark Ve control system Pollutant(s): Propylene - 819 pounds Sulfur Dioxide - 8,726 pounds Benzene - 209 pounds Nitrogen Oxide - 1,099 pounds Ethylene - 1,052 pounds	Cause of Problem: Equipment Failure 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.	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.
125934 2010-08-25	Point Source(s): pump on P-541 discharge line Pollutant(s): Flammable Gas - BRQ Propylene - BRQ	Cause of Problem: Piping or Tubing Leak on pump discharge line P-541.	No RQs were exceeded. At time of report Exxon was determining how to stop the leak.
125406 2010-08-04	Point Source(s): None Reported Pollutant(s):	Cause of Problem: Equipment Failure Furnace outlet header had a small leak.	Put steam to prevent a fire. No RQs were exceeded. Amount of chemicals released is unknown.
125403 2010-08-04	Point Source(s): flare Pollutant(s): Ethylene - 100 pounds	Cause of Problem: Process Upset Over pressure resulted in flaring of ethylene. Relief valve opened to control pressure.	Due to prompt incident response to mitigate the event duration, they have determined that no reportable quantities were exceeded. Over 100 pounds of ethylene was released.
125267 2010-07-29	Point Source(s): pipe going to CT01 Pollutant(s): Propylene - BRQ	Cause of Problem: Piping or Tubing There is a small leak on tower CT-01.	Because of the location of the leak the unit was brought down to repair. Propylene was released. Written report says no RQs were exceeded.
125144 2010-07-25	Point Source(s): RL-1 Cooling Tank Pollutant(s): Hexane - 226 pounds	Cause of Problem: Equipment Failure Heat exchanger E-110A of the halobutyl rubber unit was determined to be the source of the leak and was isolated to stop the release.	Routine halobutyl unit hexane inventory monitoring performed on July 19th revealed potential hexane losses, investigation was initiated. Standard initial evaluations of data validity and material balances were performed. Operational investigation into the loss was also completed, included surveying the area using an optical imaging camera and testing the cooling water for Total Organic Carbon content. Unit material balances revealed potential hexane release began on July 12th, and leak rate calculations were completed utilizing normal engineering calculations of hole size, leak rate, and total release since July 12th. As requested by LDEQ, Industrial Hygiene monitoring was performed at the cooling tower upon discovery of the leak. This monitoring established there were no offsite impacts as a result of this release. This incident is under investigation to determine the root cause and prevent recurrence. The exchanger will be returned to service.
124978 2010-07-20	Point Source(s): Tank 916 Pollutant(s): Natural Gas - 0	Cause of Problem: Equipment Failure On 7/20/10 at approximately 10 am the LDEQ responded via phone to Exxon Mobil concerning a natural gas leak. The gas leak developed on top of Tank 916 at the Oxo Plant.	Operators quickly shut down the tank. Air monitoring was conducted. An unknown quantity of natural gas was released. Pictures included in report of Tank and how it was patched up where the leak occurred. Tank appears covered in rust.
124880 2010-07-15	Point Source(s): pipe in pipe bank Pollutant(s): Napthalene - 1 gallons	Cause of Problem: Piping or Tubing A pipe in a pipe bank was leaking.	Leak was discovered by people walking through the unit that noticed the leak. They called in liquid naptha (general term).
124881 2010-07-15	Point Source(s): Block valve Pollutant(s): Ethane - BRQ	Cause of Problem: Maintenance/Procedures It was a planned flaring.	They have a block valve that needed maintenance. Flaring started at 9:30 am scheduled to be over by 2:30 pm. Exxon's report received on 7/26/10 indicated no RQ exceedances.
124687 2010-07-08	Point Source(s): Halobutyl Unit flare line Pollutant(s): Propylene - 329 pounds Flammable Vapor - 1,809 pounds	Cause of Problem: Corrosion Crack in the line was discovered on a Halobutyl Unit Flare. It was a nonpreventable released caused by unanticipated corrosion.	Upon discovery, temporary clamps were installed to end the release and close the potential emission sources. A permanent repair plan is being developed. This incident was caused by unanticipated corrosion. Exceeded RQs.
124659 2010-07-07	Point Source(s): Piping weld Pollutant(s): Propylene - BRQ	Cause of Problem: Piping or Tubing There was a pinhole leak in a piping weld.	Isolated and evacuated. Propylene is the chemical on line.
124078 2010-06-10	Point Source(s): flange Pollutant(s): Propylene - 1,260 pounds	Cause of Problem: Equipment Failure Propylene leak from a flange at the discharge end of the compressor. Attempts to fix the check valve flange resulted in the bolts being stripped and more release occured.	Propylene leak from a flange at the discharge end of compressor. Planned to put a clamp to stop the leak and monitor air quality. Exxon's report was received on 6/21/10 at CRO. Fugitive emission leak was deteced at the propylene refrigeration system during LDAR round. Attempts to fix the check valve flange resulted in the bolts being stripped and more release occurred. Effort to clamp the flange stopped the release. Exceeded RQ for propylene (an HRVOC). Report says this will be addressed during the next inspection.
124022 2010-06-08	Point Source(s): Sapple tubing on furnace Pollutant(s): Benzene - BRQ Butadiene - BRQ	Cause of Problem: Piping or Tubing Leak on sapple tubing on one of furnaces.	Leak on sapple tubing on one of the furnaces. Residue was being disposed of and resured. Incident reviewed by Regenia "Faye" Taylor during inspection in June 2011, stated that it was below RQ. Incident closed. Just LDEQ report no SPOC or Exxon letter.
123886 2010-05-31	Point Source(s): line on drum Pollutant(s): Flammable Vapor - 366 pounds	Cause of Problem: Piping or Tubing Hole in the line on drum and leaking butenes	Hole in line on drum leaked butenes. It was isolated and they tried to depressurize. They updated later when the leak stopped. They started air monitoring 20 minutes after the leak started and didn't find any hydrocarbons at the perimeter of the unit. Report from Exxon was received on 6/7/10 saying no RQs were exceeded.
123705 2010-05-23	Point Source(s): SCLA unit Pollutant(s): Flammable Vapor - 412 pounds	Cause of Problem: Piping or Tubing Pipeline leak in Methyl Ethyl Ketone unit.	There was a pipeline leak in MEK unit. Butene released. Exxon's report was received on 6/2/10. Release occurred in the SCLA unit from a weld. It was depressurized and shut down. Also included in the incident #123722. Only SPOC report in file
123362 2010-05-11	Point Source(s): Waste water treatment system Pollutant(s): Sulfuric Acid - 0	Cause of Problem: Piping or Tubing Pipe had a leak in it.	The cause was a leaking pipe component. Sulfuric Acid went into their waste water treatment systsem. They shut down the unit, isolated the leak, and washed up.
123193 2010-05-03	Point Source(s): Exchanger-18X Pollutant(s): Propylene - 7,258 pounds Volatile Organic Compounds (VOCs) - 6,678 pounds	Cause of Problem: Piping or Tubing On 4/15/10 the Baton Rouge Complex sampled cooling tower #33 for MACT CC compliance using the El Paso cooling tower sample method, as required by refinery operations. Cooling tower #33 is located in the refinery and services both refinery and chemical plant units. The sample results from 4/15 showed more hydrocarbon than expected, so the tower was resampled on 4/16. These results also indicated a hydrocarbon leak.	The unit personnel began looking for the source under the premise that the release had to be repaired within 45 days, as required by MACT CC. On 4/3/10, the leaking exchanger (E-18X) was identified as the leak source. The exchanger is part of the Baton Rouge Chemical Plant so MACT CC provisions do not apply. Once the leaking exchanger was identified, the release calculations were updated based on the actual stream speciation. These updated calculations relevealed that the release was larger than orginially calculated using the EL Paso method and exceeded the reportable quantity for propylene. RQ for VOC was not exceeded. The exchanger bundle will be repaired before returning to service. Cooing tower MACT CC sampling procedures will also be updated for cooling towers that service both refinery and chemical plant units. Caused by an unforseen exchanger leak. Release of HRVOC during ozone reason, will take up upon next inspection.
122853 2010-04-17	Point Source(s): propylene compressor Pollutant(s): Propylene - 9 pounds	Cause of Problem: Process Upset Trip of propylene compressor and gas is going to the flare.	Originally they thought it may be greater than 100 lbs but the actual reprted release was 9 lb, below RW. Prompt shut down resulted in the release being BRQ.
122560 2010-04-05	Point Source(s): Pressure relief valve Pollutant(s): Benzene - BRQ	Cause of Problem: Equipment Failure Pressure relief valve on a storage tank malfunctioned.	The natural gas was blocked to the tank and reduced emissions by drafting the tank. Due to tank level management and prompt vent repair, Exxon said no reportable quantities were exceeded.
112376 2010-03-26	Point Source(s): valve Pollutant(s): Sulfuric Acid - 30 gallons	Cause of Problem: Corrosion Corrosion on a valve caused a leak.	Report says no RQs were exceeded.
121936 2010-03-05	Point Source(s): Knock-out drum D-28 Pollutant(s): Hydrogen - 8 pounds Carbon Monoxide - 87 pounds Water - 199 pounds Hydrogen Cyanide - 1 pounds Carbon Dioxide - 8,297 pounds Hydrogen Sulfide - 76 pounds	Cause of Problem: Process Upset Vent on a drum popped open. Root cause was high liquid level in the drum and vent valve relieved as per design.	During normal operations, the acid gas is incinerated at furnaces F-5 and F-6. Before going to the incinerators, the liquid is removed from the steam at a knock out drum, D-28. The cause of the high liquid level is under investigation. Upon completion of this investigation, this event will be reviewed with all operating personnel and investigation recommendations will be tracked and steqarded to ensure completion. SPOC report said 126 of hydrogen sulfide were released, Exxon's report says 76.3 lbs were released. The D-28 liquid level was drained, per procedure, which allowed the vent valve to re-set in the closed position.
121682 2010-02-22	Point Source(s): pipe Pollutant(s): Benzene - 11 pounds	Cause of Problem: Piping or Tubing Piping began leaking.	The product went to their seqer system. The unit was shut down and hey began to flush the system and repair the leak. The report says that no RQs were exceeded, but 10.5 lbs is above RQ.
121525 2010-02-17	Point Source(s): filter Pollutant(s): Benzene - 0 Steam - BRQ Water - BRQ Benzene - BRQ	Cause of Problem: Under Investigation	An individual was preparing to change a filter. For some reason a steam of steam, water and benzene was released. All stream was blocked in. The area is isolated and they are beginning to clean up. They said they may call back with the amount of the release.
121196 2010-02-01	Point Source(s): T104 Pollutant(s): Propylene - 100 pounds Ethylene - 30 pounds	Cause of Problem: Process Upset T104 Overpressured and caused emergency shut down.	Burning to a flare.
121122 2010-01-29	Point Source(s): Blowdown drum D-106 Pollutant(s): Benzene - 31 pounds	Cause of Problem: Instrument Failure Earlier that morning, a TCD box, which contains computer hardware for controlling unit operations, had gone into "reset: mode and could not be restarted.	The box was shut down and the processor card replaced. An output card failed upon attempted restart of the box, which resulted in a steam drum safety valve lifting. Steam was sent to the Aromatic unit's blowndown drum, D-106, which has an atmospheric seal. The resultant pressure increase in D-106 caused brief venting of steam through the atmospheric seal leg. A small quantity of benzene was entrained with the steam as it vented to the atmosphere, resulting in an excess of the 10 lb reportable quantity threshold. The output card was replaced and the TCD box returned to full control. An investigation is underway to determine the root cause and prevent recurrence. This incident was not preventable because it was caused by unforseen computer hardware failure.
120826 2010-01-16	Point Source(s): bleeder valve Pollutant(s): Volatile Organic Compounds (VOCs) - 6,201 pounds Flammable Gas - 6,201 pounds	Cause of Problem: Equipment Failure The block valve was discovered to be leaking	Leaking valve. Valve was isolated. Planned to repair it that day. Released quantities are minimum estimates. Exceeded RQs. When the leak was discovered, the bleeder was closed to prevent further release. An investigation is underway to determine root cause.
120825 2010-01-15	Point Source(s): No Information Given Pollutant(s): Ethylene - 0	Cause of Problem: Maintenance/Procedures The purpose of the flaring was to start the maintain ethylene unit. It was also to help the South area control center along with the North area control center.	The caller stated that the flaring may continue as long as 1/16/10. They said that the flaring should not exceed reportable quantities. Just SPOC report. No mention of what it stopped of whether or not it reached RQ.
120703 2010-01-10	Point Source(s): flare Pollutant(s): Propylene - 2,421,834 pounds Ethylene - 716 pounds Volatile Organic Compounds (VOCs) - 141,454 pounds Flammable Vapor - 2,562,647 pounds 1,3-Butadiene - 0 Nitrogen Oxide - 0 Sulfur Dioxide - 0	Cause of Problem: Piping or Tubing Unknown cause for leak in the propylene line of the EPLA (Ethylene Purification Unit). The EPLA uses high pressure propylene for refrigeration.	Initial report was received on 1/19/10. Ethylene Purification Unit (EPLA) uses high pressure propylene for refrigeration. Leak in pipe started 1/9/10 but discovered 1/10/10 at 8:20 pm. Proper and safe disposition of high pressure propylene is flaring. EPLA unit was shut down and more flaring occurred. Flaring occurred. Ended 1/11/10 at 3:22 am. Subsequent start up also resulted in flaring which are covered under permit. This was not preventable as it was an unusual incident. Follow up report after invesitgation was received on 3/22/10. Following corrective actions were contemplated: Design and install a permanent repair for the line, Review vibration study, Increase HAWK camera utilization to detect leaks early, Implement flow alarms for early warning via Real Time Advisor computer system. Exxon Mobil personnel requested and met with the Enforcement Divsion to settle the penalty on this preventable release.
120682 2010-01-10	Point Source(s): HCE vacuum jet Pollutant(s): Benzene - 31 pounds	Cause of Problem: Process Upset The HCE vacuum jet went positive.	No additional information.
120636 2010-01-09	Point Source(s): No Information Given Pollutant(s): Benzene - 10 pounds	Cause of Problem: Instrument Failure Instrument malfunction.	Instrument malfunction. May not be a real release due to freezing conditions, but weather at the time of the event was 20 degrees Fahrenheit.

Louisiana Refinery Accident Database

ExxonMobil Chemical Plant (286), Baton Rouge

Releases in 2010