Designing ionic liquids for CO2 capture

I&EC 221

JaNeille K. Dixon, jdixon1@nd.edu1, Mark J Muldoon, mark.muldoon@st-andrews.ac.uk2, Sudhir NVK. Aki, asudhir@nd.edu3, Jessica L. Anderson3, Joan F. Brennecke, jfb@nd.edu3, and Edward J. Maginn, ed@nd.edu3. (1) Dept. of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, (2) School of Chemistry, EaSTCHEM, University of St Andrews, Purdie Building, North Haugh, St Andrews, KY16 9ST, United Kingdom, (3) Department of Chemical and Biomolecular Engineering, University of Notre Dame, 182 Fitzpatrick Hall, Notre Dame, IN 46556
Separation of carbon dioxide from other gases plays a key role in a wide variety of industries, including natural gas purification, flue gas separation, etc. Ionic liquids show tremendous promise for gas separations since they are nonvolatile, selective and tunable. We have measured the solubility of numerous different gases, including carbon dioxide, in ionic liquids using both gravimetric and volumetric techniques. Moreover, we have incorporated functional groups, including fluoroalkyl chains, sulfates, carbonates, and ethers, into both the cation and anion, in order to increase carbon dioxide solubility and selectivity. We will present results that show how an optimal combination of both physical absorption and weak chemical complexation can be achieved by careful design of the ionic liquid and used for carbon dioxide capture.
 

Ionic Liquids: Not Just Solvents Anymore OR Ionic Liquids: Parallel Futures (Sponsored by Green Chemistry and Engineering, Separation Science and Technology and Novel Chemistry with Industrial Applications Sub-Divisions)
8:15 AM-12:30 PM, Tuesday, 28 March 2006 Georgia World Congress Center -- B314, Oral

Division of Industrial and Engineering Chemistry

The 231st ACS National Meeting, Atlanta, GA, March 26-30, 2006