this post was submitted on 19 Apr 2024
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How else do u suppose we make steel?
Use renewable and clean energy sources to produce electricity then make steel with induction heater or other forms of electricity-based heat?
That's..... Not how new steel production works.
Coal is a significant component in the production of steel to impregnate it with carbon. It's a fundamental part of how a blast furnace operates. The article literally talks about this...
Even the article about doesn't mention an alternative. An arc furnace relies on scrap it cannot make new steel.
Though, I wonder if we can move more towards charcoals, but even then I wonder if that's just much less effective or if it cannot reach the temperatures or concentrations required for industrial processes.
The hybrit process that some Swedish steelmakers (including SSAB - not a typo, it isn't Saab) are using looks promising. They've been testing it with Volvo and are apparently making it part of Volvo's regular process in 2026