Lube Oil Blending Plant Process — Flow Diagram [work]

| Area | Common Control Loops | Safety Devices | |------|----------------------|----------------| | | Level control, temperature control, wash‑water flow | High‑level alarm, emergency vent, fire‑water spray | | Vacuum Distillation | Pressure, reflux ratio, reboiler duty | Vacuum breaker, over‑pressure safety valve | | Hydro‑process Units | H₂ flow, reactor temperature, catalyst feed | H₂ flashback detector, pressure relief valves, flame arrestors | | Blending | Viscosity set‑point, additive dosing ratio, temperature | Over‑temperature shutdown, additive over‑dose interlock | | Product Storage | Tank level, temperature, nitrogen purge pressure | Inert gas over‑pressure alarm, secondary containment |

Plants typically use one of three main blending methods depending on their production goals: lube oil blending plant process flow diagram

[Crude] --> [Desalter] --> [Vacuum Distill.] --> [Hydrotreater] --> [Dewaxer] --> [Base‑Oil Tanks A,B,C] | |--- (VGO) --> [Hydrocracker] --> [Base‑Oil Tanks D,E] | +--- (Resid) --> [Solvent Extraction] --> [Base‑Oil Tank F] | Area | Common Control Loops | Safety