PROCESSO E INSTALACAO PARA REDUZIR MATERIAL OXIDICO

摘要

The invention relates to a method and a plant for reducing oxide-containing material while simultaneously generating a gas suitable as fuel gas. In this regard, there is produced from carbonaceous and/or hydrocarbon material a reduction gas (16) containing mainly carbon monoxide and hydrogen gas, obtained by partial combustion (at 12) and further treatment with carbon in a separate gas generating shaft (14). The temperature of said thus prepared reduction gas is then regulated (20) and said gas introduced into a reduction shaft (1) containing the oxidic material optionally subsequent to desulphurizing (17) said gas. Thereafter the partially spent reduction gas withdrawn from said reduction shaft is freed from water and solids (5), whereafter a part-flow of said spent gas may be used as fuel gas (6), while optionally a further part-flow is returned to the process (via 7 and 23).