Geochemical modelling of experimental O2–SO2–CO2 reactions of reservoir, cap-rock, and overlying cores

Carbon dioxide streams stored geologically from industrial sources e.g. coal oxy-fuel firing sources, steel or cement processing, may contain gas impurities including O2, NOx and SOX which may have higher reactivity to rock than pure CO2. Supercritical CO2 with O2 and SO2 impurities (0.16 and 2% respectively) was reacted with core from the Precipice Sandstone, Evergreen Formation, and Hutton Sandstone of the Surat Basin, Australia. The Precipice...