Calcium looping for CO2 capture at a constant high temperature
Article
Article Title | Calcium looping for CO2 capture at a constant high temperature |
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ERA Journal ID | 3878 |
Article Category | Article |
Authors | Yin, Junjun (Author), Qin, Changlei (Author), Feng, Bo (Author), Ge, Lei (Author), Luo, Cong (Author), Liu, Wenqiang (Author) and An, Hui (Author) |
Journal Title | Energy and Fuels |
Journal Citation | 28 (1), pp. 307-318 |
Number of Pages | 12 |
Year | 2013 |
Publisher | American Chemical Society |
Place of Publication | United States |
ISSN | 0887-0624 |
1520-5029 | |
Digital Object Identifier (DOI) | https://doi.org/10.1021/ef401399c |
Web Address (URL) | http://pubs.acs.org/doi/abs/10.1021/ef401399c |
Abstract | A calcium looping process using calcium-oxide-based sorbent for CO2 capture was demonstrated to operate at a constant high temperature in this work. First the operating temperature window of the process was determined by investigating the quasi-equilibrium and kinetics of carbonation/calcination of synthetic CaO-based sorbents. The results indicate that the process would be suitable to operate within 750−840 °C when the CO2 concentration is higher than 15%. Subsequently, the process was demonstrated in a lab-scale fixed-bed reactor in 20% CO2 (N2 balance) by examining the temperature variations in the synthetic CaO-based sorbent particles. The effects of operating variables (such as operating temperature, switching time, and sample type) on the cyclic temperature variation were investigated. It was observed that the process operated in a highly stable manner over 100 cycles at 770 °C with the switching time of 1 min in both carbonation and calcination modes. The cost of calcium looping could be reduced significantly by operating at a constant high temperature. |
Keywords | carbonation and calcinations; cyclic temperatures; fixed-bed reactors; Operating temperature; Operating variables; quasi-equilibrium; sorbent particles; temperature variation calcium; temperature distribution; carbon dioxide |
ANZSRC Field of Research 2020 | 400401. Carbon capture engineering (excl. sequestration) |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
Huazhong University of Science and Technology, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3z44/calcium-looping-for-co2-capture-at-a-constant-high-temperature
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