Processing of Lithium Zirconate for Applications in Carbon Dioxide Separation: Structure and Properties of the Powders

Lithium zirconate, Li2ZrO3, has been reported as a candidate material for high‐temperature CO2 separation. The reaction of Li2ZrO3 with CO2 is extremely fast, and the material can store significant quantities of CO2 at high temperature. The reacted CO2 can be regenerated by thermal cycling. Alternat...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2004-01, Vol.87 (1), p.68-74
Main Authors: Nair, Balagopal N., Yamaguchi, Takeo, Kawamura, Hiroto, Nakao, Shin-Ichi, Nakagawa, Kazuaki
Format: Article
Language:English
Subjects:
Carbon dioxide removal
Chemical elements
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Lithium
Powders
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Summary:Lithium zirconate, Li2ZrO3, has been reported as a candidate material for high‐temperature CO2 separation. The reaction of Li2ZrO3 with CO2 is extremely fast, and the material can store significant quantities of CO2 at high temperature. The reacted CO2 can be regenerated by thermal cycling. Alternatively, a membrane system might be developed based on the reversible reaction process. For absorption and membrane separation, the particle size, crystal structure, and state of agglomeration of the Li2ZrO3 powders are important. Therefore, we have synthesized Li2ZrO3 using sol‐gel procedures and compared its properties with powders made via a powder‐mixing route and a commercial‐grade powder. The morphologic and structural characteristics of the powders and their CO2 absorption properties are discussed.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1551-2916.2004.00068.x