method, device and reduction furnace direktreduzieren of stueckigen iron ore, pellets, agglomerisaten etc.

摘要

Reduction process employs a reducing gas produced with technically pure oxygen, which is fed into the blast furnace underneath the reduction zone. It is regenerated in circulation and is reintroduced as circulating gas at the lower end of the blast furnace. Continuous current gasification of a solid carbon carrier is effected by adding a hydrogen-producing, gaseous hydrocarbon, pref. methane, and steam.