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    Barrington: The history of modern direct reduction

    Written by Chris Barrington


    One might be forgiven for thinking of direct-reduced iron (DRI) as an invention of green steel and the transition to carbon-neutral steelmaking. Not so!

    Reduction of iron ore dates back thousands of years with the charcoal-based Bloomery furnace, which reduced iron ore in the solid state to sponge-like iron blooms, in effect a form of direct reduction (DR). Attempts to develop gas- or coal-based solid state reduction processes in the 18th and 19th centuries could not compete with scale and efficiency of blast furnaces.

    Chris Barrington

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