Air Emission Event Report Database Incident 341135
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| Incident Tracking Number: |
341135 |
Incident Status: |
CLOSED |
| Report Type: |
FINAL |
Report Date: |
09/11/2020
|
| Name of Owner or Operator: |
MOTIVA CHEMICALS LLC
|
CN: |
CN603743030
|
| Regulated Entity Name: |
MOTIVA CHEMICALS |
RN: |
RN100217389 |
| Physical Location: |
4241 SAVANNAH AVE; PORT ARTHUR, TX 77640 |
| County: |
JEFFERSON |
| Event/Activity Type: |
AIR SHUTDOWN
|
| Date and Time Event Discovered or Scheduled Activity Start: |
08/25/2020 07:05 AM
|
| Date and Time Event or Scheduled Activity Ended: |
09/02/2020 07:38 AM
|
| Event Duration: |
192 hours, 33 minutes
|
| Process Unit or Area Common Names |
| Light Olefins Unit (LOU) |
| Facility Common Name |
Facility Identification Number (FIN) |
| LOU Flare |
LOUFLARE |
| 1 - Emission Point Common Name: |
Emission Point Number: |
| LOU Flare |
LOUFLARE |
| List of Air Contaminant Compounds - 16 total |
| Description |
Est. Quantity/
Opacity |
Units |
Emission
Limit |
Units |
Authorization |
|
1,3-BUTADIENE
|
44.35
|
POUNDS
|
0.0
|
|
No specific Authorization
|
|
Benzene
|
220.36
|
POUNDS
|
0.0
|
|
No specific Authorization
|
|
Butanes
|
948.97
|
POUNDS
|
0.0
|
|
No specific Authorization
|
|
Butenes, All Isomers
|
90.03
|
POUNDS
|
0.0
|
|
No specific Authorization
|
|
Carbon Monoxide
|
17056.76
|
POUNDS
|
0.0
|
|
No specific Authorization
|
|
Ethylbenzene
|
3.68
|
POUNDS
|
0.0
|
|
No specific Authorization
|
|
Ethylene (gaseous)
|
7447.21
|
POUNDS
|
0.0
|
|
No specific Authorization
|
|
Isobutane
|
82.51
|
POUNDS
|
0.0
|
|
No specific Authorization
|
|
Isobutylene
|
176.91
|
POUNDS
|
0.0
|
|
No specific Authorization
|
|
Nitrogen dioxide
|
134.53
|
POUNDS
|
0.0
|
|
No specific Authorization
|
|
Nitrogen oxide
|
2556.02
|
POUNDS
|
0.0
|
|
No specific Authorization
|
|
Pentanes
|
4.05
|
POUNDS
|
0.0
|
|
No specific Authorization
|
|
Propane
|
3136.85
|
POUNDS
|
0.0
|
|
No specific Authorization
|
|
Propylene
|
16037.12
|
POUNDS
|
0.0
|
|
No specific Authorization
|
|
Toluene
|
54.29
|
POUNDS
|
0.0
|
|
No specific Authorization
|
|
Xylenes
|
3.14
|
POUNDS
|
0.0
|
|
No specific Authorization
|
| Cause of Emission Event or Excess Opacity Event, or Reason for Scheduled Activity: |
| Motiva Chemicals LLC (RN100217389; TCEQ Account JE0135Q) Port Arthur Chemicals (PAC) facility began shutting down operations of its process units, on August 25, 2020 at 07:05 hours in preparation for Hurricane Laura to ensure the plant was brought down safely and with minimal environmental impacts. Emissions during the shutdown event were routed to the Light Olefins Unit (LOU) Flare for destruction. |
| Actions Taken, or Being Taken, to Minimize Emissions And/or Correct the Situation: |
| Shutdown activities were performed per appropriate shutdown procedures. To minimize emissions, the LOU was brought down in a safe and controlled manner. Excess emissions generated were routed to the LOU Flare for destruction. |
| Basis Used to Determine Quantities and Any Additional Information Necessary to Evaluate the Event: |
| Emissions are based on engineering estimates and judgment, stream speciation, estimated duration, and engineering calculations. Emissions of benzene, 1,3-butadiene, and oxides of nitrogen are estimated to have exceeded state and federal reportable quantities (RQs) over a 24-hour period. Emissions of ethylene, propylene, and carbon monoxide are estimated to have exceeded state RQs over a 24-hour period. It was also observed that during this incident, the LOU flare smoked intermittently.
Note that at the time of the Initial State of Texas Environmental Electronic Reporting System (STEERS) Report, formal emissions estimates were not available. PAC stated in the report that, “All amounts released listed in this report are preliminary estimates of the potential emissions based on current available information. These estimates may or may not be indicative of the actual amounts or compounds released. It is likely that better emissions estimates will be provided in the Final State of Texas Environmental Electronic Reporting System (STEERS) Report. The dates/times given in this report are only estimates. The duration of this shutdown event may vary significantly from this estimate. The actual shutdown event duration will be provided in the Final STEERS Report.”
Based on information presently known to PAC the shutdown activity began on August 25, 2020 at approximately 07:05 hours and ended on September 2, 2020 at approximately 07:38 hours. For the purpose of this report the duration is 192 hours and 33 minutes.
The initial notification was not filed more than 10 days prior to the planned maintenance activity; however, PAC filled the notice as soon as practicable, in accordance with 30 TAC §101.211(a).
In accordance with applicable regulations and guidelines, the National Response Center (NRC), Texas State Emergency Response Commission (SERC), and the Local Emergency Planning Commission (LEPC) were notified.
NRC# 1285525 - 08/25/2020 0813; Rawls
SERC# 20202720 - 08/25/2020 0814; Weckerle |
| Initial Notification Date/Time: |
08/24/2020 10:44 AM
|
Method: |
STEERS |
| Notification Jurisdictions: |
REGION 10 - BEAUMONT
|
| Publication Status: |
VERIFIED BY A CUSTOMER |
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