Performance enhancement of calcium oxide sorbents for cyclic CO2 capture-A review

Liu, Wenqiang, An, Hui, Qin, Changlei, Yin, Junjun, Wang, Guoxiong, Feng, Bo and Xu, Minghou (2012) Performance enhancement of calcium oxide sorbents for cyclic CO2 capture-A review. Energy and Fuels, 26 5: 2751-2767. doi:10.1021/ef300220x


Author Liu, Wenqiang
An, Hui
Qin, Changlei
Yin, Junjun
Wang, Guoxiong
Feng, Bo
Xu, Minghou
Title Performance enhancement of calcium oxide sorbents for cyclic CO2 capture-A review
Formatted title
Performance enhancement of calcium oxide sorbents for cyclic CO2 capture-A review
Journal name Energy and Fuels   Check publisher's open access policy
ISSN 0887-0624
1520-5029
Publication date 2012-05
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1021/ef300220x
Volume 26
Issue 5
Start page 2751
End page 2767
Total pages 17
Place of publication Washington, DC, United States
Publisher American Chemical Society
Collection year 2013
Language eng
Formatted abstract
While calcium oxide has been identified to be the best candidate for capturing CO2 at high temperature, it suffers a well-known problem of loss-in-capacity; that is, its capacity for carbon capture decays dramatically during cyclic carbonation/calcination processes. Recently, extensive research work has been conducted on the enhancement of the cyclic performance of calcium oxide through either improving the performance of natural minerals, such as water/steam hydration and pretreatment or modification of calcium oxide sorbents by some techniques such as doping and synthesis. This work summarizes the state-of-the-art research in the literature aiming to identify potential solutions to the loss-in-capacity problem. It is found that hydration during or after calcination is effective in recovering the capacity of natural minerals and mixing can produce highly effective synthetic sorbents. Periodic hydration of synthetic sorbents could be a good strategy to overcome the technical issues associated with loss-in-capacity while meeting the requirements of the physical properties of sorbents in many potential applications.
Keyword Cao-Based Sorbent
Chemical Heat-Pump
Carbon-Dioxide Separation
Packed-Bed Reactor
High-Temperature
Hydrogen-Production
Fluidized-Bed
Looping Cycle
Energy-Storage
Calcination Conditions
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collections: School of Mechanical & Mining Engineering Publications
Official 2013 Collection
 
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