Membrane evaporation of amine solution for energy saving in post-combustion carbon capture: Performance evaluation

Zhao, Shuaifei, Cao, C, Wardhaugh, L and Feron, PHM 2015, Membrane evaporation of amine solution for energy saving in post-combustion carbon capture: Performance evaluation, Journal of Membrane Science, vol. 473, pp. 274-282, doi: 10.1016/j.memsci.2014.09.029.

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Title Membrane evaporation of amine solution for energy saving in post-combustion carbon capture: Performance evaluation
Author(s) Zhao, ShuaifeiORCID iD for Zhao, Shuaifei orcid.org/0000-0002-7727-6676
Cao, C
Wardhaugh, L
Feron, PHM
Journal name Journal of Membrane Science
Volume number 473
Start page 274
End page 282
Total pages 9
Publisher Elsevier
Place of publication Piscataway, N.J.
Publication date 2015
ISSN 0376-7388
1873-3123
Keyword(s) membrane evaporation
post-combustion carbon capture
membrane distillation
mass and heat transfer
sweeping gas membrane distillation
Science & Technology
Technology
Physical Sciences
Engineering, Chemical
Polymer Science
Engineering
CO2 CAPTURE
DIOXIDE CAPTURE
GAS
CONTACTORS
REMOVAL
COEFFICIENTS
FLOW
Summary © 2014 Elsevier B.V. In this study, we propose a membrane evaporation system for energy penalty reduction in post-combustion carbon capture (PCC) and carry out membrane evaporation of amine solutions. The effects of some key factors (i.e. evaporation temperature, gas and liquid flow rates and solvent concentration) on mass and heat transfer are systematically investigated. It is found that both evaporation temperature and gas flow rates have significant influences on vapor and heat transfer, while liquid flow rates have limited effect on mass and heat transfer in membrane evaporation. The vapor and recovered heat fluxes increase exponentially with the rise in evaporation temperature, and increase linearly with the rise in gas flow rates. The increase in evaporation temperature and gas flow rates also significantly improves the evaporation efficiency and heat recovery. Mass and heat transfer rates decrease as the concentration of the solvent increases because of the reduced vapor pressure of the liquid at higher concentration. It is estimated that the recovered heat flux can be up to 32MJm-2h-1 and heat recovery can be over 40% when the gas/liquid flow rate ratio is 150. Therefore, the proposed membrane evaporation system has great potential to save considerable energy in large-scale PCC pilot plant operation.
DOI 10.1016/j.memsci.2014.09.029
Field of Research 03 Chemical Sciences
09 Engineering
HERDC Research category C1 Refereed article in a scholarly journal
Persistent URL http://hdl.handle.net/10536/DRO/DU:30129311

Document type: Journal Article
Collections: Institute for Frontier Materials
GTP Research
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