PROCESSING UNITS OF OIL REFINERY
Crude Oil Distillation Unit Crude Oil Distillation Unit (CDU): is the first processing unit in virtually all oil refineries. The CDU distills the incoming crude oil into various fractions of different boiling ranges, each of whi... Vacuum Distillation Unit Vacuum Distillation Unit (VDU): further distills the residue oil from the bottom of the crude oil distillation unit. The vacuum distillation is performed at a pressure well below atmospheric pressure. Diesel Hydrotreating Unit Diesel Hydrotreating Unit (DHT): uses hydrogen to desulfurize the naphtha fraction from the crude oil distillation or other units within the refinery. Semi-regenerative Reforming Semi-regenerative Reforming (SRR): used to convert petroleum refinery naphtha distilled from crude oil (typically having low octane ratings) into high-octane liquid products called reformates, which a... Fluid Catalytic Cracking Unit Fluid Catalytic Cracking Unit (FCC): under the action of heat and catalyst, upgrades