CO2 free production of critical raw materials using hydrogen

The context

Hydrogen is less effective in reduction than carbon, making it unsuitable for producing certain strategic metals like:

Silicon

Manganese

This limitation narrows the decarbonization options for these essential industries.

The challenge

A new Critical Raw Materials production pathway where renewable hydrogen is used indirectly to replace fossil carbon

This process captures CO₂ from off-gases, utilizes renewable hydrogen, and repurposes the recovered carbon as a reduction material in metal production, promoting sustainability in the industry.

The goals

Save 33 million tonnes of annual CO2 emissions in 2050

Replace 9 million tonnes of annual coal imports by 15 million Nm3 of H2 in 2050​

95% reduction of CO2-emissions from Si and Mn production​

News

MECALO Press Release

The main ambition of MECALO is to demonstrate its innovative concept of renewable hydrogen and carbon looping for CO2-neutral production of Silicon (Si) and Manganese (Mn).

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