Unlocking Resources through Advancing Mineral Carbon Storage in Mafic Rocks
George R. Brown Convention Center - Room 332 A/D
Tuesday, 12 March 2024, 12:10 p.m.–1:20 p.m. |
Carbon capture and storage is a critical tool to meet global climate goals, and access to permanent carbon storage is currently a bottleneck. Carbon storage in basalt is a safe and effective means of permanent geologic carbon storage due to the potential for mineralization. This method involves in-situ injections of carbon into basaltic formations, where carbon is sequestered first in aqueous phase via dissolution, then in mineral form through carbonate precipitation. Mineral carbon storage in basalt has been proven as an effective means of durable and verifiable geologic carbon storage in two successful pilot-scale field demonstrations where two injection strategies were employed: a water-dissolved approach and a free-phase CO₂ only injection. The water-dissolved approach is the only form of carbon storage in basalt in commercial operation today, however key limitations exist with this method, namely high water use and low per-well injection capacity. Cella is an early-stage technology start-up working on a novel method of subsurface mineralization employing injections of free-phase CO₂ (e.g., supercritical). Injections of supercritical CO₂ (scCO₂) into basalt can minimize water demand, increase per-well injection capacity, expand the feasible range of basalt carbon storage, and leverage the deep expertise and off-the-shelf infrastructure from the enhanced oil recovery industry. Cella's patent-pending technology offers a low-cost solution that has the potential to optimize carbon mineralization in basalt and substantially advance the scalability of this technology.
$75 per person.