Maryam Sayyah, Dr. Yongqi Lu, Dr. Richard I. Masel and Prof. Kenneth S. Suslick Mechanical Activation of CaO-Based Adsorbents for CO2 Capture ChemSusChem 6
Having a ball with milling: The reversible cycling of CaO adsorbents to CaCO3 for high-temperature CO2 capture is substantially improved by a mechanochemical approach. MgO has been used as an inert binder to help mitigate CaCO3 sintering. Wet planetary milling of MgO into CaCO3 allows for efficient particle size reduction and effective dispersion of MgO throughout the particles, yielding the most stable sorbents during several cycles of carbonation–calcination.
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