| Abstract Scope |
NIPPON DENKO, a leading ferromanganese manufacturer, is addressing climate change with its "Challenge to Achieve Carbon Neutrality by 2050" a core aspect of our sustainability management policy. In ferromanganese production, we use a Submerged Arc Furnace to reduce manganese ores with coal-coke and electricity. While electricity can transition to renewable energy, replacing coal-coke remains a challenge due to the lack of viable alternatives. Unlike steelmaking, where H₂-reduction is promising, manganese ores cannot be fully reduced to manganese metal using H₂ but only to MnO, requiring more advanced technologies. As a first step, we are researching CO₂-free reduction methods, including bio-carbon, synthesized-carbon, green-CH₄, and molten oxide electrolysis. These efforts aim to develop innovative solutions for decarbonizing ferromanganese production and achieving carbon neutrality by 2050.
This presentation is based on results obtained from a project, JPNP21005, subsidized by the New Energy and Industrial Technology Development Organization (NEDO) in part. |