APARELHO E PROCESSO PARA REDUCAO DIRETA DE OXIDO DE FERRO PARA UM PRODUTO DE FERRO METALIZADO

摘要

A method and apparatus for the direct reduction of iron oxide utilizing sulfur-containing gas such as coke oven gas for the process gas. Sulfur-containing gas is heated and injected above the reduction zone to transfer the sulfur to the hot burden. The apparatus includes an upper bustle zone for prereduction and sulfur transfer and a lower bustle zone for the final reduction of the burden to metallized iron.