Pemex overhauling multiple units at Deer Park, Texas, refinery (U.S.)
Mexico's national oil company Pemex completed the shutdown of multiple units at its 312,500-bpd Deer Park, Texas, refinery to begin a multi-unit overhaul. The refinery's 270,000-bpd DU-2 crude distillation unit (CDU), the larger of two at the refinery, is shut for the planned overhaul that will last about 60 days, the sources said.
Pemex calls the overhaul "the Big Block Turnaround" because it involves the large CDU and the 70,000-bpd fluid catalytic cracking unit (FCCU), 70,000-bpd diesel-producing hydrocracking unit (HCU) and 92,000-bpd coker along with other units, sources said.
DU-2 is the larger of two CDUs breaking down crude oil into feedstocks for all other units at the refinery. The small CDU, the 70,000-bpd DU-1, will remain in operation while DU-2 is down for the overhaul.
The FCCU, HCU and coker are all supplied with feedstock by DU-2.
FCCUs use a catalyst under high heat and pressure to convert gas oil into unfinished gasoline.
HCUs use a catalyst under high heat and pressure in the presence of hydrogen to convert gas oil into gasoline.
Cokers break down gunky, tar-like residual crude oil into either motor fuel feedstocks or petroleum coke, which can substitute for coal.
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