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Supercritical CO2 injections


Technology Description

Mineral storage, a technology based on injection of CO2 into rock formations with high concentrations of reactive minerals, is under development. Basalts and peridotites are targeted since both are rich with metals that react with CO2 to form carbonate minerals. Experience of this type of storage is very limited, but it can be done either with supercritical CO2 or with CO2 dissolved in water.

Relevance for Net Zero

CO2 storage is an essential element of the CCUS chain. CCUS is a key technology enabling emissions reductions across the power, industry and fuel transformation sectors. Furthermore, it can deliver negative emissions by removing CO2 from the atmosphere and storing it permanently underground.

Key Countries

United States

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