A METHOD AND PLANT FOR REDUCING OXIDIC MATERIAL WHILE SIMULTANEOUSLY GENERATING A GAS SUITABLE AS FUEL GAS

摘要

The invention relates to a method and equipment for reducing material which contains oxides while an appropriate gas is simultaneously generated as a fuel gas. In this respect a reducing gas which mainly contains carbon monoxide and gaseous hydrogen is produced from carbonaceous material and/or material containing hydrocarbons using the thermal energy obtained by partial combustion in a separate vessel for the generation of gas. The temperature of the said reducing gas prepared in this way is then controlled and the said gas is introduced in a reducing vessel which contains the oxide material, optionally after the said gas has been desulphurised. After this the partly spent reducing gas withdrawn from the said reduction vessel is freed of water and solids, after which a partial flow of the said spent gas can be used as fuel gas, while another partial flow is optionally delivered to the process.