MIT spinout Boston Metal has powered up its electricity driven steel production reactor and made over a ton of metal in a crucial step toward commercializing its process. With clean electricity, the process could make steel with zero CO2 emissions.

    • Cort@lemmy.world
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      4 days ago

      Depends on how it’s powered. If the electricity comes from burning coal (coke) or methane, that would emit co2. If it runs off solar/hydro/wind it would only emit co2 from any carbon trapped in the iron ore that manages to burn instead of becoming incorporated into the steel.