Motiva's Port Arthur, TX, Chemicals Plant Reports Flaring
3/05 8:55 AM
Motiva's Port Arthur, TX, Chemicals Plant Reports Flaring HOUSTON, TX (DTN) -- Motiva Enterprises reported an initial air emission event following a process unit upset at its Port Arthur Chemicals facility, according to a filing to Texas Commission on Environmental Quality (TCEQ). The upset began at approximately 7:30 a.m. on March 3 at the facility's Light Olefins Unit (LOU). The event resulted in continuous flaring through the LOU Flare emission point for a duration of 24 hours, concluding at 7:30 a.m. on March 4. The petrochemical plant produces nearly 1 million metric tons of ethylene per year. A total of 15 air contaminants were released during the event. The largest estimated quantities included carbon monoxide (3,000 lbs), ethylene (2,600 lbs), propylene (575 lbs), benzene (425 lbs), and nitrogen oxide (400 lbs). Additional compounds released included propane, 1,3-butadiene, isobutylene, toluene, butane, nitrogen dioxide, butylene, ethylbenzene, xylenes, and isobutane. All emissions exceeded their permitted limits of zero pounds. Motiva Enterprises operates the Port Arthur Manufacturing Complex, one of the largest refining and petrochemical complexes in the United States. The incident remains under review by TCEQ. (c) Copyright 2026 DTN, LLC. All rights reserved.