Flexicoke
The flexicoke is formed during thermal cracking of the heavy residues.
Coke de pétrole
Petroleum coke is a porous solid material, black or dark gray with high carbon content and different levels of sulphur, depending on its quality, which is produced as a by-product of oil refining process.
Anthracite
Anthracite is a hard, compact variety of mineral coal that has a high luster. It has the highest carbon content, the fewest impurities, and the highest calorific content of any coal, which also includes bituminous coal and lignite.
Recarburizer
The use of a recarburizer in the production of steel or founding becomes necessary due to the need for introducing carbon as alloy-former in the metal, in such a way that the metallic product reaches the proper characteristics.