Subsurface Reactive CO2 Mineralization of Fe-Rich Minerals for Simultaneous Geo-Hydrogen Stimulation and Metal Recovery

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Presenter

Prince Ochonma, Ph.D.
Research Specialist,
Department of Civil and Environmental Engineering
Cornell University

Description

This talk explores the potential of leveraging earth-abundant, iron-rich minerals in the subsurface environment for the simultaneous recovery of energy-relevant metals and the generation of geologic hydrogen through reactive CO₂ mineralization. By coupling metal extraction with in-situ hydrogen evolution and permanent carbon storage, this approach offers a novel pathway for sustainable resource recovery and decarbonization. The presentation highlights recent insights into the geochemical mechanisms driving these transformations, emphasizing the role of mineral heterogeneity, fluid chemistry, and reaction pathways in optimizing co-production outcomes.