Identifying the CO2 capture performance of CaCl 2-supported amine adsorbent by the improved field synergy theory

Wu, Xiao M., Yu, Yun S., Zhang, Chao Y., Wang, Geoff X. and Feng, Bo (2014) Identifying the CO2 capture performance of CaCl 2-supported amine adsorbent by the improved field synergy theory. Industrial and Engineering Chemistry Research, 53 24: 10225-10237. doi:10.1021/ie500841n


Author Wu, Xiao M.
Yu, Yun S.
Zhang, Chao Y.
Wang, Geoff X.
Feng, Bo
Title Identifying the CO2 capture performance of CaCl 2-supported amine adsorbent by the improved field synergy theory
Formatted title
Identifying the CO2 capture performance of CaCl 2-supported amine adsorbent by the improved field synergy theory
Journal name Industrial and Engineering Chemistry Research   Check publisher's open access policy
ISSN 1520-5045
0888-5885
Publication date 2014-06-18
Year available 2014
Sub-type Article (original research)
DOI 10.1021/ie500841n
Volume 53
Issue 24
Start page 10225
End page 10237
Total pages 13
Place of publication Washington DC United States
Publisher American Chemical Society
Language eng
Formatted abstract
Absorption in amine solutions and adsorption on supported amine adsorbents are typical CO2 capture routes. However, amine-solution absorption normally consumes substantial amounts of energy, and supported-amine adsorption suffers from low capture capacity. Herein, a CaCl2-supported amine adsorbent was prepared to combine the high capture capacity and low energy consumption of a packed-bed system. Gas- and solid-phase models coupled with a changing-particle-size model were developed to predict the adsorption/desorption behavior. A new index of synergy angle distribution gradient (SADG) was used to characterize the synergistic effects. Experiments were performed to determine the adsorption/desorption reaction kinetics and validate the model. The improved field synergy theory determined that diffusion and reaction dominated the CO2 capture by the CaCl2-supported amine adsorbent. This process improved the capture capacity and energy consumption by 30% and 10%, respectively, compared to the conventional CO2 capture process.
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
School of Chemical Engineering Publications
Official 2015 Collection
 
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