Fig. 2


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Chemical/metallurgical routes for reducing iron oxides. Shown in black are the “elementary” reducing agents (carbon, hydrogen), in red the “composite” reducing agents Syngas, natural gas), in green triangles and red letters highlighted in yellow, existing or potential processes (smelting reduction, blast furnace). The red arrows show two major solution paths: decarbonization/decarbonatation and CCS/CCU.

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