Regeneration mechanisms of high-lithium content zirconates as CO2 capture sorbents: experimental measurements and theoretical investigations.
By combining TGA and XRD measurements with theoretical calculations of the capture of CO2 by lithium-rich zirconates (Li8ZrO6 and Li6Zr2O7), it has been demonstrated that the primary regeneration product during absorption/desorption cycling is in the form of Li2ZrO3. During absorption/desorption cycles, lithium-rich zirconates will be consumed and will not be regenerated. This result indicates that among known lithium zirconates, Li2ZrO3 is the best sorbent for CO2 capture.
National Energy Technology Laboratory, United States Department of Energy, Pittsburgh, Pennsylvania 15236, USA. yuhua.duan@netl.doe.gov.
Yuhua
Y
Duan
Jonathan
J
Lekse