| 摘要 |
<p>An economical process is provided for the direct reduction of iron ore by the efficient production of a reducing gas when the external source of fuel used in the process is a liquid or solid. A gasifier facility converts a minimal amount of fuel to a gas comprised principally of reductants which is supplemented with reductants reclaimed from the reacted off-gas produced in the reduction process. A controlled amount of water vapor is added to the gas mixture which is heated to approximately reduction furnace temperature before undergoing a shift reaction to equilibrium externally of the furnace to produce a reducing gas having a preferred gas composition.</p> |
