Regeneration mechanisms of high-lithium content zirconates as CO2 capture sorbents: experimental measurements and theoretical investigations

被引:19
作者
Duan, Yuhua [1 ]
Lekse, Jonathan [1 ,2 ]
机构
[1] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA
[2] URS Corp, South Pk, PA 15219 USA
关键词
CARBON-DIOXIDE SORPTION; TEMPERATURE; ABSORPTION; LI4SIO4; CHEMISORPTION; SEQUESTRATION; TECHNOLOGY; SILICATES; STORAGE;
D O I
10.1039/c5cp03968a
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
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.
引用
收藏
页码:22543 / 22547
页数:5
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