Effect of sulfation during oxy-fuel calcination stage in calcium looping on CO2 capture performance of CaO-based sorbents

Luo, Cong, Zheng, Ying, Yin, Junjun, Qin, Changlei, Ding, Ning, Zheng, Chuguang and Feng, Bo (2013) Effect of sulfation during oxy-fuel calcination stage in calcium looping on CO2 capture performance of CaO-based sorbents. Energy & Fuels, 27 2: 1008-1014. doi:10.1021/ef3017199


Author Luo, Cong
Zheng, Ying
Yin, Junjun
Qin, Changlei
Ding, Ning
Zheng, Chuguang
Feng, Bo
Title Effect of sulfation during oxy-fuel calcination stage in calcium looping on CO2 capture performance of CaO-based sorbents
Journal name Energy & Fuels   Check publisher's open access policy
ISSN 0887-0624
1520-5029
Publication date 2013-02-01
Sub-type Article (original research)
DOI 10.1021/ef3017199
Volume 27
Issue 2
Start page 1008
End page 1014
Total pages 7
Place of publication Washington, DC, United States
Publisher American Chemical Society
Language eng
Abstract Sulfation of calcium-based sorbent is bound to occur during carbonation or calcination of the sorbent in a calcium looping system if SO2 is present in the system, and it will influence the CO2 capture capacity of the sorbent. While the effect of sulfation during the carbonation stage on the CO2 capture capacity has been studied by some researchers, the effect of sulfation during the calcination stage has not been studied extensively. In this study, the effect of sulfation during the calcination stage under oxy-fuel combustion conditions on the CO2 capture capacity of two calcium-based sorbents was investigated. The results showed that the calcination temperature and O2 concentration of 5-20% had little effect on the sulfation of the sorbents, while SO2 concentration and the presence of H2O greatly influenced the cyclic performance of the sorbents. Furthermore, reducing calcination time seems to be an effective way to limit sulfation during calcination, because the sulfation rate is slow in the initial induction stage of the gas-solid reaction.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2014 Collection
 
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