Advancing CO2 storage through carbon mineralization in the United States

Carbon dioxide (CO2) storage through mineralization offers an alternative pathway for storage of captured CO2. It has been demonstrated that, by targeting mafic or ultramafic rock formations, injected CO2 is rapidly transformed to solid carbonate minerals, achieving safe and permanent storage of the injected CO2. Suitable geological formations are widespread, with vast storage potential available in North America, notably in regions that have limited access to classical geological storage resources in deep sedimentary basins. Carbfix and PNNL, leaders in mineral storage research and the only entities worldwide that have successfully demonstrated mineral storage of CO2 in basaltic rocks, are collaborating on clean energy projects across the United States, covering various aspects of the development and implementation of CO2 mineralization. The goal of this collaboration is to map out the path for CO2 storage through mineralization, from feasibility studies to eventual commercialization. Here, we report on these efforts.