The effects of water vapor and coal ash on the carbonation behavior of CaO-sorbent supported by γ-Al2O3 for CO2 capture

The presence of water vapor during carbonation induced the extensive formation of large voids on the sorbent surface and the deep decomposition of inert mayenite (Ca12Al14O33) into CaO and Al2O3, leading to significant increases in reactivity and carrying capacity.190