A delayed coker is a type of coker whose process consists of heating a residual oil feed to its thermal cracking temperature in a furnace with multiple parallel passes. This cracks the heavy, long chain hydrocarbon molecules of the residual oil into coker gas oil and petroleum coke. As anodes in the production of aluminum.

DELAYED COOKER USAGE:
In the production of titanium dioxide.
As a carbon raiser in cast iron and steel making.
Producing graphite electrodes and other graphite products such as graphite brushes used in electrical equipment.
In carbon structural materials.