Valero Energy Corp shut the large crude distillation unit and a coking unit on Monday night at the 335,000-barrel-per-day Port Arthur, Texas, refinery as part of an ongoing plant-wide overhaul, said sources familiar with plant operations.
The 268,000-bpd AVU-146 CDU is scheduled to be shut for four weeks, while the 100,000-bpd coker is scheduled to be shut until late October, the sources said.
During the overhaul, which began in late August, the refinery's two crude distillation units, a hydrocracker, a coker and a reformer among other units are scheduled to be shut for planned work. Gasoline and diesel production are planned to be reduced, but not shut down, sources told Reuters in June.
