Refinery vacuum distillation units (VDUs) use ejector systems to establish and maintain distillation-column pressure for capturing valuable crude fractions and reducing vacuum residuum. Reliable ...
* Expansion will make Motiva Port Arthur largest U.S. refinery * Coker to be shut for work later this month -sources * Vacuum unit to be shut in May for overhaul -sources By Erwin Seba HOUSTON, April ...
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