Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
638620 | Journal of Membrane Science | 2007 | 7 Pages |
Abstract
Supported liquid membranes have been prepared by impregnation of commercial porous polymer films with the ionic liquid 1-n-hexyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide. The ionic liquid has been characterized, and the membranes have been tested to determine performance in the selective separation of CO2 from He. Experiments were conducted in a constant pressure system, and pure gas permeability/selectivity data are reported. Membranes prepared with polysulfone supports have been found to be stable to 125 °C. The CO2 permeability of the membranes increases from 744 to 1200 barrer as the temperature increases from 37 to 125 °C. The CO2/He selectivity decreased from 8.7 to 3.1 over the same temperature range.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
Jeffery Ilconich, Christina Myers, Henry Pennline, David Luebke,