Regular Solution Theory and CO2

Regular Solution Theory and CO2...
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Ind. Eng. Chem. Res. 2004, 43, 6855-6860

6855

Regular Solution Theory and CO2 Gas Solubility in Room-Temperature Ionic Liquids Paul Scovazzo,*,† Dean Camper,‡ Jesse Kieft,‡ Joe Poshusta,§ Carl Koval,| and Richard Noble‡ Department of Chemical Engineering, The University of Mississippi, University, Mississippi 38677, Department of Chemical Engineering, University of Colorado, Boulder, Colorado 8030, National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, Colorado 80401, and Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309

This paper explores the arguments for using solubility parameters and the regular solution theory for modeling gas solubilities in five different room-temperature ionic liquids (RTILs) at low partial pressures (