Separation of Flue Gas Components by SILP (Supported Ionic Liquid-Phase) Absorbers

P. Thomassen, Andreas Jonas Kunov-Kruse, Susanne L. Mossin, Helene Kolding, Søren Kegnæs, Anders Riisager, Rasmus Fehrmann

Research output: Contribution to journalConference articleResearchpeer-review


Reversible absorption of the flue gas components CO2, NO, NO2 and SO2 has been tested for different ionic liquids (ILs) at different temperatures and flue gas compositions where porous, high surface area carriers have been applied as supports for the ionic liquids to obtain Supported Ionic Liquid-Phase (SILP) absorber materials. The use of solid SILP absorbers with selected ILs were found to significantly improve the absorption capacity and sorption dynamics at low flue gas concentration, thus making the applicability of ILs viable in technical, continuous flow processes for flue gas cleaning. The results show that CO2, NO and SO2 can be reversible and selective absorbed using different ILs and that Supported Ionic Liquid-Phase (SILP) absorbers are promising materials for industrial flue gas cleaning. Absorption/desorption dynamics can be tuned by temperature, pressure and gas concentration.

© 2012 ECS - The Electrochemical Society
Original languageEnglish
JournalE C S Transactions
Issue number11
Pages (from-to)433-442
Publication statusPublished - 2013
EventPacific Rim Meeting on Electrochemical and Solid-State Science: 222nd Meeting of ECS — The Electrochemical Society and 2012 Fall Meeting of The Electrochemical Society of Japan - Hawaii Convention Center and the Hilton Hawaiian Village, Honolulu, United States
Duration: 7 Oct 201212 Oct 2012


ConferencePacific Rim Meeting on Electrochemical and Solid-State Science
LocationHawaii Convention Center and the Hilton Hawaiian Village
Country/TerritoryUnited States
Internet address


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