Gas-solid carbonation of Ca(OH)2 and CaO particles under non-isothermal and isothermal conditions by using a thermogravimetric analyzer: Implications for CO2 capture

► High gas-solid carbonation of Ca(OH)2 and CaO under non-isothermal conditions. ► Gas-solid carbonation of Ca(OH)2 requires low activation energy (Ea ≈ 6 kJ/mol). ► More complex thermokinetic behavior for CaO carbonation. ► Isothermal gas-solid carbonation of Ca(OH)2 was poorly complete (<0.56).