A product made from coal that is used to build fires in furnaces and for making aluminum and steel.

See Coke (Petroleum).

Solid carbon or coke retained as a residue in tar stills after high-temperature distillation.

A carbonization product of high-boiling hydrocarbon fractions obtained in petroleum processing (heavy residues).

A residue that is the final product of the condensation process in cracking.

Petroleum coke (often abbreviated pet coke) is a carbonaceous solid derived from oil refinery coker units or other cracking processes. Other coke has traditionally been derived from coal.