Imperial College London
Alternate

Paul Fennell

Faculty of Engineering, Department of Chemical Engineering

Professor of Clean Energy
 
 
 
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Contact

 

+44 (0)20 7594 6637p.fennell

 
 
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Location

 

228aBone BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Blamey:2016:10.1016/j.cej.2016.01.086,
author = {Blamey, J and Fennell, P and Anthony, E and Dugwell, D and Zhao, M and Manovic, V},
doi = {10.1016/j.cej.2016.01.086},
journal = {Chemical Engineering Journal},
pages = {298--305},
title = {A shrinking core model for steam hydration of CaO-based sorbents cycled for CO2 capture},
url = {http://dx.doi.org/10.1016/j.cej.2016.01.086},
volume = {291},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Calcium looping is a developing CO2 capture technology. It is based on the reversiblecarbonation of CaO sorbent, which becomes less reactive upon cycling. One method ofincreasing the reactivity of unreactive sorbent is by hydration in the calcined (CaO) form.Here, sorbent has been subjected to repeated cycles of carbonation and calcination within asmall fluidised bed reactor. Cycle numbers of 0 (i.e., one calcination), 2, 6 and 13 have beenstudied to generate sorbents that have been deactivated to different extents. Subsequently,the sorbent generated was subjected to steam hydration tests within a thermogravimetricanalyser, using hydration temperatures of 473, 573 and 673 K. Sorbents that had beencycled less prior to hydration hydrated rapidly. However, the more cycled sorbents exhibitedbehaviour where the hydration conversion tended towards an asymptotic value, which is likelyto be associated with pore blockage. This asymptotic value tended to be lower at higherhydration temperatures; however, the maximum rate of hydration was found to increase withincreasing hydration temperature. A shrinking core model has been developed and applied to 2the data. It fits data from experiments that did not exhibit extensive pore blockage well, butfits data from experiments that exhibited pore blockage less well
AU  - Blamey,J
AU  - Fennell,P
AU  - Anthony,E
AU  - Dugwell,D
AU  - Zhao,M
AU  - Manovic,V
DO  - 10.1016/j.cej.2016.01.086
EP  - 305
PY  - 2016///
SN  - 1873-3212
SP  - 298
TI  - A shrinking core model for steam hydration of CaO-based sorbents cycled for CO2 capture
T2  - Chemical Engineering Journal
UR  - http://dx.doi.org/10.1016/j.cej.2016.01.086
UR  - http://hdl.handle.net/10044/1/29235
VL  - 291
ER  -
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