Noushad Kunnummal

Abstract In-situ carbon mineralization in basalts has been identified as a permanent and scalable method to sequester CO2 in the subsurface. The extent of potentially toxic trace element mobilization during basalt dissolution, however, remains poorly constrained. The Jizan carbon sequestration pilot was undertaken to assess the potential for carbon disposal through the mineralization of water-dissolved CO2 injected into subsurface basalts in arid regions.

Abstract Carbon capture and storage (CCS) has the potential to help nations meet their Paris Agreement CO2 reduction commitments1,2. The ability to capture CO2 within mafic and ultramafic rocks through mineralization of carbon is an example of such a CCS technology3,4, but large-scale deployment has yet to be achieved5,6. Each geologic environment in the Earth’s crust requires a distinct carbon storage solution.