| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 57236 | Catalysis Today | 2009 | 7 Pages |
Abstract
Influences of oxygen vacancy possessing additives (CexZr1−xO2, LaAlyMg1−yO3) on the cyclic stability of Ca-based high temperature CO2 absorbent were investigated. Compared to absorbents composed only of CaO, oxygen vacancy possessing materials added absorbents showed significantly improved cyclic stability in repeated CO2 absorption/desorption. It has been also found that the cyclic stability of CO2 absorbent was proportional to the availability of oxygen vacancy in additives. It was presumed that oxygen vacant site behaves as a jump site for facilitating CO2 diffusion through the product layer formed during carbonation.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Kwang Bok Yi, Chang Hyun Ko, Jong-Ho Park, Jong-Nam Kim,