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Cited by 249

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Flame-Made Durable Doped-CaO Nanosorbents for CO2 Capture

Lu, Hong, Khan, Ataullah, Pratsinis, Sotiris E., Smirniotis, Panagiotis G.·2009·Energy & Fuels
DOI 10.1021/ef8007882
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Abstract

The present study deals with the design and development of novel calcium-oxide-based refractory sorbents synthesized by flame spray pyrolysis (FSP) for carbon dioxide capture. The FSP-derived sorbents inherently exhibit very large CO 2 uptake capacity in the present investigation. Sorbents derived from conventional wet chemistry, possessing identical composition, were synthesized and evaluated. A wide range of refractory dopants (Si, Ti, Cr, Co, Zr, and Ce) were employed, aiming at developing sorbents with good mechanical strength. Among all of the doped CaO sorbents, Zr-doped CaO was found to exhibit the best CO 2 -capture performance under identical conditions of operation. To study the effect of Zr in depth and find out the optimal concentration of Zr needed in the CaO matrix, a series of Zr-incorporated CaO sorbents were synthesized by varying the relative composition of Zr in the CaO base matrix. The present studies suggest that Zr/Ca in the 3:10 atomic ratio results in the formation of the most robust nanosorbent for multicyclic operation. This sorbent retained, unchanged, its ability to capture CO 2 during extended cycles. It also demonstrated excellent stability under operating in the presence of water vapor (10 vol %). The present paper represents two novel developments in the field of CO 2 capture, first, the superiority of FSP process and, second, the role of ZrO 2 dopant in improving the durability and robustness of the CaO-based sorbent.

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Metadata

Authors
Lu, H., Khan, A., Pratsinis, S. E., & Smirniotis, P. G.
Venue
Energy & Fuels
Publisher
American Chemical Society (ACS)
Published
2008-12-29
Volume
23
Issue
2
Pages
1093-1100
ISSN
  • 0887-0624 (ISSN-L)
  • 1520-5029
DOI
10.1021/ef8007882
OpenAlex
W2028800119
Cited by
249
References
1
FWCI
14.94
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Flame-Made Durable Doped-CaO Nanosorbents for CO2 Capture. https://app.cochat.ai/papers/10.1021/ef8007882
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Lu, H., Khan, A., Pratsinis, S. E., & Smirniotis, P. G. (2009). Flame-Made Durable Doped-CaO Nanosorbents for CO2 Capture. Energy & Fuels. https://doi.org/10.1021/ef8007882

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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