[S-GC37] Volatiles in the Earth - from Surface to Deep Mantle

[SGC37-P17] Chemical and geological CO₂ sequestration

*Monika Motak¹、Bogdan Samojeden¹ (1.AGH University of Krakow)

キーワード：carbon dioxide, sequestration, dry raforming of methane, catalysts

Carbon dioxide (CO₂) sequestration is a key strategy for mitigating climate change by reducing atmospheric CO₂ concentrations. This process can be achieved through chemical and geological methods. Chemical sequestration involves the conversion of CO₂ into stable compounds, such as carbonates, via mineralization or its utilization in industrial applications. Particularly, CO₂ can be transformed into synthetic fuels like methane, methanol, or synthesis gas. These processes require catalysts that facilitate efficient hydrogenation (to methane or methanol) or synthesis gas production via dry methane reforming (DRM).
Geological sequestration entails CO₂ injection into deep geological formations, including depleted oil and gas reservoirs, saline aquifers, and basalt formations, ensuring long-term storage. Both approaches present challenges and opportunities regarding efficiency, cost, and stability. This study explores novel catalytic materials for chemical CO₂ sequestration and assesses geological storage potential in Poland.