In addition to heating things up, electricity drives the oxygen-removing chemical reactions. The electricity heats the cell up to about 1,600 ☌ (nearly 3,000 ☏), melting everything into a hot oxide soup. Instead of using carbon to remove oxygen, the process relies on electricity, which runs through a cell filled with a mixture of dissolved iron oxides along with other oxides and materials. The carbon and oxygen are then released together as carbon dioxide.īoston Metal’s solution is an entirely new approach, called molten oxide electrolysis (MOE). The reaction pulls out the oxygen, leaving behind liquid iron. Most steelmaking starts in a blast furnace, where a coal-derived material called coke, which is almost pure carbon, reacts with iron ore, a mixture of iron oxides and other minerals. Fossil fuels are essential to today’s steel production.
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