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You asked about air emissions for customer MOTIVA ENTERPRISES LLC, with a start date between 2/1/2003 and 2/23/2004.
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Search Results - Air Emission Event Report for Tracking Number 33028
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 01/09/2004 10:19AM
This is based on the: FINAL REPORT Event ended: 01/09/2004 10:49AM
Cause SHU charge pump tripped off and spare was locked out because of a leaking seal and had to be started manually after unblocking valves. DUPLICATE OF 33029
Action taken Operators restarted the pump and the flaring stopped. DUPLICATE OF 33029
Emissions estimation method Bernoulli`s equation was used for high pressure liquid through a PRV. This is a DUPLICATE of TCEQ# 33029. Please delete this entry or refer to TCEQ# 33029 for all information.
Source 1: ALKY, FIN number
Source 2: ALKY Flare, FIN number FCCU NO2FLSTACK
Source 3: Alky Emerg. Flare, EPN number EFCCU 1&2
Contaminant Authorization Limit Amount Released
Butene 8404 0.0 909.615 lbs (est.)
Nitrogen oxide 8404 0.0 167.65 lbs (est.)
No other sources
Report for Tracking Number 33033
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 01/09/2004 10:19AM
This is based on the: FINAL REPORT Event ended: 01/09/2004 10:49AM
Cause STEERS Incident #33029/33033 1. The emissions associated with the January 9, 2004, incident was a result of the sudden breakdown of the vibration probe on SHU Charge Pump 9346 at the Alkylation Unit. Once the probe indicated high reading, Protective Instrument Systems (PIS) shutdown the pump. However, feed continued to enter the Charge Drum from the Pumphouse causing it to overfill and relieve to the Alky and FCCU emergency flares. 2. The emissions associated with the above incident did not stem from an event that could have been avoided by good design or operation. The probe in question had given no prior warning that it was faulty. Once the event happened the Mechanical and Instrument Technicians verified that the probe was faulty through instrument checks and tests. 3. The probes were maintained in a manner to ensure operability. They are used as a precautionary device to avoid damage to the pump in the event of high vibration. High vibration on a pump can lead to permanent damage to the machine. 4. Prior to the incident the operator stepped away from the console due to a personal emergency. Once the operator returned several alarms indicated something had gone wrong. The operator analyzed the situation, sorted through the alarms, and instituted corrective actions. These consisted of manually restarting SHU Charge Pump 9346 and adjusting FC 4999 to stop the flow of material into the Charge Drum. Once the steps were completed the operations returned to normal and the flaring stopped. 5. The amount and duration of the incident in question was minimized by the actions of operations in diagnosing the problem and instituting corrective actions. Pollution control equipment was not bypassed during the event. In addition to the above-mentioned event black smoke was witnessed for approximately 15 minutes during the flaring. The black smoke was a result of the steam regulators being blocked in at the FCCU to keep the flare pilots lit. Operators manually opened the valves to deliver steam to the flares. The problem is being addressed and a plan is being put in place. 6. All emission monitoring equipment was operational at the time of the event. 7. Operators at the unit submitted reports to the EDMS system, which is an environmental database used to track incidents. Additionally, other tools such as raddconnect, an on-line data-collecting tool, is available for operations to evaluate unit performance during the event. 8. The event listed above is not part of a recurring pattern. As with all mechanical equipment probes are prone to failure. The probe gave no indication of failure prior to the incident. 9. In 2003, Motiva Port Arthur Refinerys flaring events for reportable and non-reportable events for all 7 flares was 659.22 hours. The total operating time for all 7 (7*8760) flares was 61320 hours. The total annual operating hours for 2003 in which emission events occurred for all 7 flares together both reportable and non-reportable, is 1.07% (659.22/61320). On average this comes to approximately 94 hours per flare per year. 10. The emissions associated with the incident did not cause or contribute to an exceedance of the national ambient air quality standard (NAAQS), prevention of significant deterioration (PSD) increments, or to a condition of air pollution. 11. As stated in question 9, the total annual operating hours for reportable and non-reportable emission ev ents was on average 1.07% p STEERS Incident #33029/33033 1. The emissions associated with the January 9, 2004, incident was a result of the sudden breakdown of the vibration probe on SHU Charge Pump 9346 at the Alkylation Unit. Once the probe indicated high reading, Protective Instrument Systems (PIS) shutdown the pump. However, feed continued to enter the Charge Drum from the Pumphouse causing it to overfill and relieve to the Alky and FCCU emergency flares. 2. The emissions associated with the above incident did not stem from an event that could have been avoided by good design or operation. The probe in question had given no prior warning that it was faulty. Once the event happened the Mechanical and Instrument Technicians verified that the probe was faulty through instrument checks and tests. 3. The probes were maintained in a manner to ensure operability. They are used as a precautionary device to avoid damage to the pump in the event of high vibration. High vibration on a pump can lead to permanent damage to the machine. 4. Prior to the incident the operator stepped away from the console due to a personal emergency. Once the operator returned several alarms indicated something had gone wrong. The operator analyzed the situation, sorted through the alarms, and instituted corrective actions. These consisted of manually restarting SHU Charge Pump 9346 and adjusting FC 4999 to stop the flow of material into the Charge Drum. Once the steps were completed the operations returned to normal and the flaring stopped. 5. The amount and duration of the incident in question was minimized by the actions of operations in diagnosing the problem and instituting corrective actions. Pollution control equipment was not bypassed during the event. In addition to the above-mentioned event black smoke was witnessed for approximately 15 minutes during the flaring. The black smoke was a result of the steam regulators being blocked in at the FCCU to keep the flare pilots lit. Operators manually opened the valves to deliver steam to the flares. The problem is being addressed and a plan is being put in place. 6. All emission monitoring equipment was operational at the time of the event. 7. Operators at the unit submitted reports to the EDMS system, which is an environmental database used to track incidents. Additionally, other tools such as raddconnect, an on-line data-collecting tool, is available for operations to evaluate unit performance during the event. 8. The event listed above is not part of a recurring pattern. As with all mechanical equipment probes are prone to failure. The probe gave no indication of failure prior to the incident. 9. In 2003, Motiva Port Arthur Refinerys flaring events for reportable and non-reportable events for all 7 flares was 659.22 hours. The total operating time for all 7 (7*8760) flares was 61320 hours. The total annual operating hours for 2003 in which emission events occurred for all 7 flares together both reportable and non-reportable, is 1.07% (659.22/61320). On average this comes to approximately 94 hours per flare per year. 10. The emissions associated with the incident did not cause or contribute to an exceedance of the national ambient air quality standard (NAAQS), prevention of significant deterioration (PSD) increments, or to a condition of air pollution. 11. As stated in question 9, the total annual operating hours for reportable and non-reportable emission ev ents was on average 1.07% p er flare. The approximate breakdown for reportable versus non-reportable events is 10/90%. The emission event history is included below. From 1/9/2003 to 1/9/2004 the Alkylation Unit (including flare) had a total of 7 events. Casual History Note: The Alky Flare and the FCCU Flare are tied into a common line. In most circumstances, both flares will be used during an emergency. Therefore, use of the Alky Flare does not always indicate problems at the Alky Unit. 1. Date: 4/14/03 Cause: A 2.4 kV electrical transformer at Power Station 2 failed. Electrical power was restored at 4:41 pm, but a chain of events was started that affected the supplies of instrument air, boiler feed water, and steam to the entire facility (Plant). 2. Date: 4/15/03 Cause: Wet Gas Compressor shut down twice, first shutdown was due to high level in the dry end of Low Pressure separator caused by a bad level indicator. The second was caused by a high differential pressure between the seal and the buffer gas system (FCCU3). 3. Date: 4/19/03 Cause: Catalyst plugged transmitters causing airflow indication to drop below set points. Catalyst was a result of 4/14 power failure (FCCU3). 4. Date: 6/20/03 Cause: Instrument alarm set points were incorrectly set on A-3 Drum (FCCU3). 5. Date: 9/15/03 Cause: Failure of the switch on Gas Operated Air Break Switch 59 (Plant). 6. Date: 10/14/03 Cause: Malfunction in Entergya??s line caused power failure (Plant). 7. Date: 1/9/04 Cause: Faulty vibration probe on SHU Charge Pump (Alky).
Action taken The operators restarted the charge pump and the flaring stopped.
Emissions estimation method Bernoulli`s equation was used for high pressure liquid through a PRV. Black Smoke was reported for 15 minutes. This was not included in the initial notification but was called in shortly after submittal within 24 hours. Doug Kelly of the TCEQ was notified. Report ID20040060 1/9/04 18:30
Source 1: FCCU Emer. Flare, EPN number EFCCU3
Contaminant Authorization Limit Amount Released
Butadiene, 1-3 8404 0.0 0.525 lbs (est.)
Butane, N- 8404 0.0 796.41 lbs (est.)
Butene 8404 0.0 909.615 lbs (est.)
Carbon Monoxide 8404 0.0 551.28 lbs (est.)
Ethane 8404 0.0 0.14 lbs (est.)
Nitrogen dioxide 8404 0.0 18.63 lbs (est.)
Nitrogen oxide 8404 0.0 167.65 lbs (est.)
Pentane, N- 8404 0.0 4.1 lbs (est.)
Propane 8404 0.0 29.89 lbs (est.)
Propylene (Propene) 8404 0.0 15.15 lbs (est.)
Source 2: FCCU3, FIN number FCCU NO3FS
Source 3: Fluid Catalytic Cracking Unit, FIN number
No other sources
Report for Tracking Number 31674
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 12/06/2003 10:30AM
This is based on the: FINAL REPORT Event ended: 12/06/2003 3:45PM
Cause On 12/6 at approximately 10:30, the Vacuum Pipe Stills No. 4 (VPS4) lost vacuum on the Vacuum tower and vent gas was routed to the flare. An investigation concluded the event was a result of faulty Vacuum tower level instrumentation. The failure of the instumentation led to a decrease in the amount of resid flow from the Vacuum tower to the Atmospheric heaters which preheats the Atmospheric feed. The loss of the heat exchange to the feed led to increased light ends being sent to the Vacuum tower which overloaded the Vacuum heaters, tower, and overhead vacuum system. This along with the buildup of resid overpressured the Vacuum tower and resulted in the loss of vacuum.
Action taken The unit reduced charge in order to reestablish vacuum in the Vacuum tower. Operations took appropriate measures to limit the amount and time of flaring. Control systems for the level instrumentation were repaired and reviewed in order in prevent future occurrences.
Emissions estimation method ENGINEERING ESTIMATE
Source 1: 4 VPS Emergency Flare, EPN number EVPS4
Contaminant Authorization Limit Amount Released
Butane, N- 8404 0.0 41.969 lbs (est.)
Carbon Monoxide 8404 0.0 57.41 lbs (est.)
Ethane 8404 0.0 31.653 lbs (est.)
Hydrogen 8404 0.0 7.503 lbs (est.)
Hydrogen sulfide 8404 0.0 32.92 lbs (est.)
Methane 8404 0.0 58.851 lbs (est.)
Nitrogen dioxide 8404 0.0 0.795 lbs (est.)
Nitrogen oxide 8404 0.0 7.155 lbs (est.)
Pentane 8404 0.0 12.192 lbs (est.)
Propane 8404 0.0 31.887 lbs (est.)
Sulfur dioxide 8404 0.0 2950.97 lbs (est.)
Source 2: VPS4 Emergency Flare, FIN number VPS NO4 FS
Source 3: Vacuum Pipe Still No. 4, FIN number
Report for Tracking Number 27528
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 09/13/2003 9:00AM
This is based on the: FINAL REPORT Event ended: 09/13/2003 9:01PM
Cause An underground line to Tank 1475 ruptured and caused the spill. The pipe was a threaded line that was backwelded. The split occurred at the 'toe' of the weld. Metullurgical tests to determine the failure mechanism are underway and results are still pending. Additional excavation is underway on sections of the pipe to determine fitness of service. The pipe is currently out of service and the plan is to identify and replace the unfit sections. This incident has been classified as a Spill. This report will be attached to the final Spill report.
Action taken Leak was contained, and the product was vacuumed up.
Emissions estimation method Engineering estimate using mass transfer calculations.
Source 1: 27 PUMPHOUSE, FIN number
Source 2: PH 27 PROCESS FUGITIVES, EPN number FPH27
Contaminant Authorization Limit Amount Released
Butane 8404 0.0 5506.415 lbs (est.)
Hexane, n 8404 0.0 100940.605 lbs (est.)
Isobutane 8404 0.0 20.362 lbs (est.)
Isopentane 8404 0.0 16109.54 lbs (est.)
Pentane 8404 0.0 1026.075 lbs (est.)
Source 3: PH 27 PROCESS FUGITIVES, FIN number PH 27 FE
No other sources
Report for Tracking Number 29874
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 10/27/2003 10:59AM
This is based on the: FINAL REPORT Event ended: 10/27/2003 11:15AM
Cause On October 27 2003, the charge filter on the Hydrocracking Unit (HCU) plugged causing a temperature increase across reactor 1. As a result, the inlet temperature for reactor 2 increased resulting in activation of the emergency quench system. The emergency quench system was placed in manual to minimize swing through reactor 2 and avoid flooding the heater. The inlet temperatures for reactor 2 fell, however two thermocouples in reactor 2 elevated above their set trip points and shutdown the makeup compressor and the unit charge pump resulting in the unit depressuring to the flare.
Action taken Operators took appropriate steps to start up compressors and raise the unit pressures slowly to introduce charge.
Emissions estimation method Calculation were based upon the AP-42 method.
Source 1: HCU, FIN number HCU NO1 FS
Source 2: HCU Emergency Flare, EPN number EHCU
Contaminant Authorization Limit Amount Released
Butane, N- 8404 0.0 2.78 lbs (est.)
Carbon Monoxide 8404 0.0 78.74 lbs (est.)
Hydrogen sulfide 8404 0.0 12.61 lbs (est.)
Isobutane 8404 0.0 4.99 lbs (est.)
Isopentane 8404 0.0 2.25 lbs (est.)
Nitrogen dioxide 8404 0.0 1.55 lbs (est.)
Nitrogen oxide 8404 0.0 13.91 lbs (est.)
Pentane 8404 0.0 0.61 lbs (est.)
Sulfur dioxide 8404 0.0 1162.0 lbs (est.)
Source 3: Hydrocracking Unit, FIN number
No other sources
Report for Tracking Number 29878
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 10/27/2003 10:15AM
This is based on the: FINAL REPORT Event ended: 10/27/2003 10:25AM
Cause On October 27 2003, the FCCU shutdown when the combustion air blower tripped off due to high thrust probe reading. Upon examination of the thrust components the mechanical deppartment discovered no anomalies. Further investigation revealed the probable cause of the event was the thrust probe calibration/positioning was off causing the artificially high thrust readings. Prior to the trip the unit had been running at a higher thrust level, the trip was caused by a spike in the thrust measurements. A plan had been put in place to take conduct an orderly shutdown to examine the issue.
Action taken Operator relieved the pressure to the emergency flare & followed approved shutdown procedures.
Emissions estimation method Calculations were based upon Darcy's equation. Opacity >0 for 6 min.
Source 1: FCCU Emergency Flare, EPN number EFCCU3
Contaminant Authorization Limit Amount Released
Butane 8404 0.0 43.0 lbs (est.)
Butene 8404 0.0 16.0 lbs (est.)
Carbon Monoxide 8404 0.0 722.0 lbs (est.)
Hydrogen sulfide 8404 0.0 57.0 lbs (est.)
Nitrogen dioxide 8404 0.0 10.0 lbs (est.)
Nitrogen oxide 8404 0.0 90.0 lbs (est.)
Pentane 8404 0.0 1094.0 lbs (est.)
Propane 8404 0.0 57.0 lbs (est.)
Propylene (Propene) 8404 0.0 112.0 lbs (est.)
Sulfur dioxide 8404 0.0 5266.0 lbs (est.)
Source 2: FCCU3, FIN number FCCU NO3 FS
Source 3: Fluid Catalytic Cracking Unit, FIN number
Air Emission Event Report for Tracking Number 27550
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 09/15/2003 3:04PM
This is based on the: FINAL REPORT Event ended: 09/16/2003 12:28AM
Cause On 9/15 a plant wide power outage caused the Fluid Catalytic Cracker Unit(FCCU) to shutdown. FCCU Pressure Relief Valves (PRV) depressured to the Alkylation (ALKY) flare and the FCCU flare due to temporary power failure. The power failure was a result of the failure of Ground Operated Air Breaker (GOAB) 59, resulting in a B-C phase fault. Investigative efforts led us to believe that poor electrical connections on the contacts of the switch led to the bottom phase of the switch overheating and catching fire. Protective relays detected the fault and tripped the Ground Circuit Breakers (GCB). As a result the 34.5 kV FCCU3 high line de-energized causing the loss of electrical power to the units. Emissions from the above incident originated at the FCCU and was split between the ALKY and FCCU emergency flares. Corrections to the above form - Process unit above should read FCCU3. Facility common name: ALKY4 Date: 9/15/03 3:09 pm
Action taken The FCCU depressured to the ALKY flare and the FCCU flare due to the power failure. Maintenance isolated the fault at GOAB 59 and rerouted power. After power was re-established the unit pumps and cooling water flow was started and the unit was put on circulation. Switch failure and reliability history are under investigation.
Emissions estimation method AP-42 and Engineering Estimate
Source 1: ALKY, FIN number FCCU NO2 FS
Source 2: ALKY, FIN number
Source 3: ALKY EMERG FLR, EPN number EFCCU1&2
Contaminant Authorization Limit Amount Released
Carbon Monoxide 8404 0.0 423.0 lbs (est.)
Hydrogen sulfide 8404 0.0 11.0 lbs (est.)
Nitrogen dioxide 8404 0.0 6.0 lbs (est.)
Nitrogen oxide 8404 0.0 53.0 lbs (est.)
Pentane 8404 0.0 430.0 lbs (est.)
Propane 8404 0.0 168.0 lbs (est.)
Propylene (Propene) 8404 0.0 472.0 lbs (est.)
Sulfur dioxide 8404 0.0 1030.0 lbs (est.)
Air Emission Event Report for Tracking Number 27552
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 09/15/2003 3:09PM
This is based on the: FINAL REPORT Event ended: 09/16/2003 12:33AM
Cause On 9/15 a plant wide power outage caused the Fluid Catalytic Cracker Unit(FCCU) to shutdown. FCCU Pressure Relief Valves (PRV) depressured to the Alkylation (ALKY) flare and the FCCU flare due to temporary power failure. The power failure was a result of the failure of Ground Operated Air Breaker (GOAB) 59, resulting in a B-C phase fault. Investigative efforts led us to believe that poor electrical connections on the contacts of the switch led to the bottom phase of the switch overheating and catching fire. Protective relays detected the fault and tripped the Ground Circuit Breakers (GCB). As a result the 34.5 kV FCCU3 high line de-energized causing the loss of electrical power to the units.
Action taken The FCCU depressured to the ALKY flare and the FCCU flare due to the power failure. Maintenance isolated the fault at GOAB 59 and rerouted power. After power was re-established the unit pumps and cooling water flow was started and the unit was put on circulation. Switch failure and reliability history are under investigation.
Emissions estimation method Engineering Estimate and AP-42
Source 1: FCCU 3, FIN number FCCU NO3 FS
Source 2: FCCU 3, FIN number
Source 3: FCCU3 EMERG FLARE, EPN number EFCCU3
Contaminant Authorization Limit Amount Released
Carbon Monoxide 8404 0.0 423.0 lbs (est.)
Hydrogen sulfide 8404 0.0 11.0 lbs (est.)
Nitrogen dioxide 8404 0.0 6.0 lbs (est.)
Nitrogen oxide 8404 0.0 53.0 lbs (est.)
Pentane 8404 0.0 430.0 lbs (est.)
Propane 8404 0.0 168.0 lbs (est.)
Propylene (Propene) 8404 0.0 472.0 lbs (est.)
Sulfur dioxide 8404 0.0 1030.0 lbs (est.)
Air Emission Event Report for Tracking Number 27554
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 09/15/2003 3:01PM
This is based on the: FINAL REPORT Event ended: 09/15/2003 4:00PM
Cause On 9/15, loss of electrical power to the units led to a Hydrocracker (HCU) shutdown. The loss of electrical power was a result of the failure of Ground Operated Air Breaker (GOAB) 59. At this time it is believed poor electrical connections on the contacts of the switch led to the bottom phase of the switch overheating and catching fire. Current protective relays detected the fault and tripped Ground Circuit Breakers 1355 and 1365, de-energizing the 34.5 kV FCCU3 high line and causing the loss of power to the units.
Action taken The HCU depressured due to the power failure. Maintenance isolated the fault at GOAB 59 and rerouted power. After power was re-established the recycle compressor was started and the unit was put on circulation. Switch failure and reliability history are under investigation.
Emissions estimation method Engineering Estimate and AP 42 factors.
Source 1: HCU, FIN number HCU NO1 FS
Source 2: HCU EMERG FLARE, EPN number EHCU
Contaminant Authorization Limit Amount Released
Butane, N- 8404 0.0 31.37 lbs (est.)
Carbon Monoxide 8404 0.0 194.38 lbs (est.)
Hydrogen sulfide 8404 0.0 22.36 lbs (est.)
Isobutane 8404 0.0 31.88 lbs (est.)
Isopentane 8404 0.0 7.32 lbs (est.)
Nitrogen dioxide 8404 0.0 3.81 lbs (est.)
Nitrogen oxide 8404 0.0 34.33 lbs (est.)
Pentane 8404 0.0 2.25 lbs (est.)
Sulfur dioxide 8404 0.0 2062.83 lbs (est.)
Source 3: Hydro Cracker Unit (HCU1), FIN number
Air Emission Event Report for Tracking Number 27419
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 09/12/2003 11:13AM
This is based on the: FINAL REPORT Event ended: 09/12/2003 11:21AM
Cause On 9-12-03, the HCU tripped and flared due to two thermocouples in the reactor bed exceeding target trip points. Quench was added to the system, but was not enough to eleviate the rising temperatures. The rise in temperature was caused by the hydrogen "Lean" mixture which causes temperature volatility. Current control procedures/ control systems were not aggressive enough for this new lean mixture.
Action taken Once the unit tripped, it was allowed to cool and then restarted. Procedures and control systems are being reviewed in order prevent future occurrences.
Emissions estimation method Calculations based on Ideal Gas Law.
Source 1: HCU, FIN number HCU NO1 FS
Source 2: HCU-HTU1-HTU2 Flare, EPN number EHCU
Contaminant Authorization Limit Amount Released
Butane, N- 8404 0.0 19.67 lbs (est.)
Carbon Monoxide 8404 0.0 116.71 lbs (est.)
Hydrogen sulfide 8404 0.0 14.02 lbs (est.)
Isobutane 8404 0.0 19.99 lbs (est.)
Isopentane 8404 0.0 4.59 lbs (est.)
Nitrogen dioxide 8404 0.0 2.29 lbs (est.)
Nitrogen oxide 8404 0.0 20.61 lbs (est.)
Pentane, N- 8404 0.0 1.41 lbs (est.)
Sulfur dioxide 8404 0.0 1293.35 lbs (est.)
Source 3: Hydro Cracker Unit (HCU1), FIN number
No other sources
Air Emission Event Report for Tracking Number 15657
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 02/09/2003 9:13PM
This is based on the: FINAL REPORT Event ended: 02/10/2003 5:11AM
Cause Hydrate formation plugged the C3/C4 line to the Vacuum Pipe Still No. 4 resulting in the PRV on the line opening to the HCU flare. Hydrate formation in the C3/C4 line is a normal occurrence. In cold weather, a hydrate inhibitor, ethylene glycol, is injected into the line. The hydrates form when there is not enough glycol injected into the line or there is too much free water pumped through the line weakening the glycol solution. The glycol pump was found to be running, but not pumping.
Action taken The glycol infection rate was increased and the excess reflux was routed to the Fluid catalytic Cracking Unit until the C3/C4 line could be unplugged. The glycol pump was adjusted and began pumping again.
Emissions estimation method Used AP-42 emission factors.
Source 1: HCU, FIN number
Source 2: HCU Emergency Flare, EPN number EHCU
Source 3: HCU Emergency Flare, FIN number HCU NO1 FS
Contaminant Authorization Limit Amount Released
Butane, N- Permit 8404, Authorized emission limit is 0 lbs/hr 0.0 145.0 lbs (est.)
Carbon Monoxide Permit 8404, Authorized emission limit is 0 lbs/hr 0.0 179.0 lbs (est.)
Hydrogen sulfide Permit 8404, Authorized emission limit is 0 lbs/hr 0.0 24.0 lbs (est.)
Isobutane Permit 8404, Authorized emission limit is 0 lbs/hr 0.0 446.0 lbs (est.)
Nitrogen dioxide Permit 8404, Authorized emission limit is 0 lbs/hr 0.0 2.0 lbs (est.)
Nitrogen oxide Permit 8404, Authorized emission limit is 0 lbs/hr 0.0 22.0 lbs (est.)
Propane Permit 8404, Authorized emission limit is 0 lbs/hr 0.0 94.0 lbs (est.)
Sulfur dioxide Permit 8404, Authorized emission limit is 0 lbs/hr 0.0 1735.0 lbs (est.)
Air Emission Event Report for Tracking Number 15536
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 02/08/2003 1:07PM
This is based on the: FINAL REPORT Event ended: 02/09/2003 2:16AM
Cause Hydrate formation plugged the C3/C4 line to the Vacuum Pipe Still No. 4 resulting in the PRV on the line opening to the HCU flare. Hydrate formation in the C3/C4 line is a normal occurrence. In cold weather, a hydrate inhibitor, ethylene glycol, is injected into the line. The hydrates form when there is not enough glycol injected into the line or there is too much free water pumped through the line weakening the glycol solution.
Action taken The glycol injection rate was increased and the excess reflux was routed to the Fluid Catalytic Cracking Unit until the C3/C4 line could be unplugged.
Emissions estimation method Used AP-42 emission factors.
Source 1: HCU, FIN number
Source 2: HCU Flare, EPN number EHCU
Source 3: HCU1, FIN number HCU NO1 FS
Contaminant Authorization Limit Amount Released
Butane, N- Permit 8404. Authorized Emission Limit entered as "0" on final report and is in units of lbs. 0.0 190.0 lbs (est.)
Carbon Monoxide Permit 8404. Authorized Emission Limit entered as "0" on final report and is in units of lbs. 0.0 305.0 lbs (est.)
Hydrogen sulfide Permit 8404. Authorized Emission Limit entered as "0" on final report and is in units of lbs. 0.0 32.0 lbs (est.)
Isobutane Permit 8404. Authorized Emission Limit entered as "0" on final report and is in units of lbs. 0.0 584.0 lbs (est.)
Nitrogen dioxide Permit 8404. Authorized Emission Limit entered as "0" on final report and is in units of lbs. 0.0 4.0 lbs (est.)
Nitrogen oxide Permit 8404. Authorized Emission Limit entered as "0" on final report and is in units of lbs. 0.0 38.0 lbs (est.)
Propane Permit 8404. Authorized Emission Limit entered as "0" on final report and is in units of lbs. 0.0 124.0 lbs (est.)
Sulfur dioxide Permit 8404. Authorized Emission Limit entered as "0" on final report and is in units of lbs. 0.0 2950.0 lbs (est.)
No other sources
Air Emission Event Report for Tracking Number 15661
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 02/10/2003 10:21AM
This is based on the: FINAL REPORT Event ended: 02/10/2003 10:56AM
Cause A pressure relief valve on the Hydrogen Sulfide Stripper Tower relieved to the flare due to excess pressure in the tower. The elevated pressure was due to high temperatures when the reflux was lost in the tower. Reflux flow was lost when light-end hydrocarbons concentrated in the CDhydro column bottoms. A transmitter on the CDHydro coumn was reading artificially high. As a result, an automatic flow controller attempted to reduce flow through the column, resulting in a higher concentration of light hydrocarbons in the bottom of the CDHydro colum. This unit is connected to the flare system for the FCCU No. 3 and the Alkylation Unit. The total emissions reported in the initial report were actually from two separate emission points.
Action taken Unit personnel re-established reflux flow and cooled the tower to reduce pressure in the Stripper Tower.
Emissions estimation method Method AP-42
Source 1: 3 FCCU, FIN number
Source 2: FCCU NO 3 EMERG FL, EPN number EFCCU3
Source 3: FCCU NO3 FLARE STACK, FIN number FCCU NO3FS
Contaminant Authorization Limit Amount Released
Carbon Monoxide Permit 8404, Authorized emission limit is 0 lbs/hr 0.0 19.0 lbs (est.)
Hydrogen sulfide Permit 8404, Authorized emission limit is 0 lbs/hr 0.0 3.0 lbs (est.)
Nitrogen dioxide Permit 8404, Authorized emission limit is 0 lbs/hr 0.0 0.25 lbs (est.)
Nitrogen oxide Permit 8404, Authorized emission limit is 0 lbs/hr 0.0 2.0 lbs (est.)
Pentane, N- Permit 8404, Authorized emission limit is 0 lbs/hr 0.0 53.0 lbs (est.)
Sulfur dioxide Permit 8404, Authorized emission limit is 0 lbs/hr 0.0 343.0 lbs (est.)
No other sources
Air Emission Event Report for Tracking Number 15704
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 02/04/2003 2:30AM
This is based on the: FINAL REPORT Event ended: 02/04/2003 2:35AM
Cause During prestartup the inventory of Dimethyl Disulfied used to sulfide catalyst was depleted requiring CDHDS tower to be depressured to prevent catalyst damage. Final report: During pre-startup of the CDHDS Unit, the inventory of Dimethyl Disulfide (DMDS) used to sulfide catalyst was depleted because of improper lineup of the full DMDS piggy-back trailer to the DMDS skid. To prevent catalyst damage, the CDHDS tower was depressured. This unit is connected to the flare system for the FCCU No. 3 and the Alkylation Unit. The total emissions reported in the initial report were actually from two separate emission points.
Action taken Monitored tower pressure to minimize time to flare. Also as much as possible was routed through scrubbers and recovered in the fuel gas system. Final report: The tower pressure was monitored to minimize time to the flare system. Also, as much as possible was routed through scrubbers and the fuel gas system.
Emissions estimation method Method AP-42 Final report basis: AP-42
Source 1: 3 FCCU, FIN number
Source 2: FCCU NO3 Emerg. Flare & Alkylation Emerg. Flare, EPN number EFCCU3,EFCCU1&2
Source 3: FCCU3 Flare Stack & Alky 4, FIN number FCCUNO3FS&NO2FS
Contaminant Authorization Limit Amount Released
Sulfur dioxide Permit 8404. 0 entered as authorized limits. Two separate EPNs, FCCU No. 3 Flare and Alky Flare. Sulfur dioxide is 421 pounds per EPN, and according to the notification, not a RQ. 0.0 842.0 lbs (est.)
Air Emission Event Report for Tracking Number 15667
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 02/04/2003 8:11PM
This is based on the: FINAL REPORT Event ended: 02/05/2003 3:41PM
Cause Initial Report: High H2S in FCCU tailgas. Final Report: The Refinery's fuel gas system experienced elevated levels of hydrogen sulfide as a result of the pre-startup work at the new Low Sulfur Gasoline Unit. The permit levels for sulfur dioxide emissions were exeeded at some heater and boiler stacks, however, the sulfur dioxide levels did not exceed the Reportable Quantity from any one emission point.
Action taken Initial Report: Reduced FCCU charge. Final Report: Natural gas was added to the fuel gas and the charge rate to the FCCU was decreased to reduce production of tail gas.
Emissions estimation method A Basis to determine quantities was not submitted with the initial report. Final Report: AP-42.
Source 1: Heater/Boiler Stacks, EPN number N/A
Source 2: Plant Fuel Gas, FIN number N/A
Contaminant Authorization Limit Amount Released
Sulfur dioxide Permit 8404 1184.0 lbs 1665.0 lbs (est.)
Source 3: Plant Fuel Gas System, FIN number
Air Emission Event Report for Tracking Number 18716
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 04/07/2003 12:36PM
This is based on the: FINAL REPORT Event ended: 04/07/2003 1:08PM
Cause A logic controller on the HCU's Protective Instrument System initiated a unit shutdown after two bed thermocouples in the No. 2 Reactor exceeded 800 degrees Fahrenheit. The alarm summary for the event, however, indicated that only one thermocouple actually reached 800 degrees Fahrenheit. During the investigation following the incident, it was determined that a second thermocouple was set to high. Therefore, the system was seeing a false high for this thermocouple. The emissions reported above resulted from the depressuring of the unit during shutdown.
Action taken The HCU was shutdown following emergency shutdown procedures. All of the thermocouples in the reactor have been checked and the necessary adjustments have been made.
Emissions estimation method AP-42
Source 1: Emergency Flare, FIN number HCU NO1 FS
Source 2: HCU, FIN number
Source 3: HTU Emergency FLRE, EPN number EHCU
Contaminant Authorization Limit Amount Released
Butane, N- Permit 8404 0.0 7.0 lbs
Carbon Monoxide Permit 8404 0.0 170.0 lbs
Hydrogen sulfide Permit 8404 0.0 22.0 lbs
Isobutane Permit 8404 0.0 10.0 lbs
Isopentane Permit 8404 0.0 4.0 lbs
Nitrogen dioxide Permit 8404 0.0 3.0 lbs
Nitrogen oxide Permit No. 8404 0.0 30.0 lbs (est.)
Pentane, N- Permit 8404 0.0 1.0 lbs
Propane Permit 8404 0.0 15.0 lbs
Sulfur dioxide Permit No. 8404 0.0 2042.0 lbs (est.)
Air Emission Event Report for Tracking Number 18716
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 04/07/2003 12:36PM
This is based on the: FINAL REPORT Event ended: 04/07/2003 1:08PM
Cause A logic controller on the HCU's Protective Instrument System initiated a unit shutdown after two bed thermocouples in the No. 2 Reactor exceeded 800 degrees Fahrenheit. The alarm summary for the event, however, indicated that only one thermocouple actually reached 800 degrees Fahrenheit. During the investigation following the incident, it was determined that a second thermocouple was set to high. Therefore, the system was seeing a false high for this thermocouple. The emissions reported above resulted from the depressuring of the unit during shutdown.
Action taken The HCU was shutdown following emergency shutdown procedures. All of the thermocouples in the reactor have been checked and the necessary adjustments have been made.
Emissions estimation method AP-42
Source 1: Emergency Flare, FIN number HCU NO1 FS
Source 2: HCU, FIN number
Source 3: HTU Emergency FLRE, EPN number EHCU
Contaminant Authorization Limit Amount Released
Butane, N- Permit 8404 0.0 7.0 lbs
Carbon Monoxide Permit 8404 0.0 170.0 lbs
Hydrogen sulfide Permit 8404 0.0 22.0 lbs
Isobutane Permit 8404 0.0 10.0 lbs
Isopentane Permit 8404 0.0 4.0 lbs
Nitrogen dioxide Permit 8404 0.0 3.0 lbs
Nitrogen oxide Permit No. 8404 0.0 30.0 lbs (est.)
Pentane, N- Permit 8404 0.0 1.0 lbs
Propane Permit 8404 0.0 15.0 lbs
Sulfur dioxide Permit No. 8404 0.0 2042.0 lbs (est.)
Air Emission Event Report for Tracking Number 19305
Regulated entity name PORT ARTHUR REFINERY Physical location 2100 Houston Avenue, Port Arthur, TX
Regulated entity RN number RN100209451 City, County Port Arthur, JEFFERSON
Type(s) of air emissions event: EMISSIONS EVENT Event began: 04/14/2003 5:23PM
This is based on
