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Smelting reduction based on hydrogen plasma


Technology Description

The smelting reduction based on hydrogen plasma (HPSR) is the process of using hydrogen in a plasma state to reduce iron oxides. This can be done through the generation of a hydrogen plasma arc between a hollow graphite electrode and liquid iron oxide.

Relevance for Net Zero

The use of hydrogen derived from renewable electricity would open a fully CO2-free production route for steel. However, it is at much earlier stages of development compared to other low emission steel-making technologies.

Key Countries


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