Coker unit

Processing & Refining Equipment

A coker (Delayed Coking Unit) is a thermal cracking process used to upgrade the heaviest, lowest-value residue from the bottom of the distillation column ('bottom of the barrel'). It heats the residual oil to cracking temperatures until it breaks down into gas oil and solid petroleum coke.

The coke forms in large drums, which are filled and then taken offline to be cut out with high-pressure water jets. It effectively squeezes the last drop of liquid value out of the crude.