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CO2 capture using absorbents of mixed ionic and amine solutions
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
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2014 (English)In: Energy Procedia, 2014, 2849-2853 p.Conference paper (Refereed)
Abstract [en]

Studies have been conducted to find new absorbents for post-combustion CO2 capture. To overcome the ILs' limits and meanwhile take their advantages, the mixed amine + IL + H2O solutions as CO2 capture absorbent were investigated in a CO2 absorption/desorption loop setup. It was found that with an increase in IL concentration, the viscosity of the mixed solution rose while the energy required for absorbent regeneration decreased. In addition, no IL loss was detected and the amine loss per ton of captured CO2 was considerably lower than that of aqueous amine solution. The viscosity of the best candidate of 30 wt% MEA + 40 wt% [bmim][BF4] + 30 wt% H2O is close to the value of aqueous amine solution, indicating that the ionic liquid disadvantage of high viscosity can be overcome for absorbent delivery of CO2 capture.

Place, publisher, year, edition, pages
2014. 2849-2853 p.
Keyword [en]
Absorbent, Amine, CO2 capture, Energy consumption, Ionic liquid
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-167887DOI: 10.1016/j.egypro.2014.12.321ScopusID: 2-s2.0-84922366066OAI: diva2:821195
6th International Conference on Applied Energy, ICAE 2014, 30 May 2014 through 2 June 2014

QC 20150615

Available from: 2015-06-15 Created: 2015-05-22 Last updated: 2015-06-15Bibliographically approved

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Yan, Jinyue
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