期刊
PETROLEUM CHEMISTRY
卷 57, 期 9, 页码 770-778出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S096554411709002X
关键词
supported ionic liquid membrane (SILM); membrane gas separation; acid gases; ionic liquid; diffusion; solubility; selectivity
类别
资金
- Russian Science Foundation [15-19-10057]
- Russian Science Foundation [15-19-10057] Funding Source: Russian Science Foundation
The separations of the CO2/N-2 and CO2/CH4 gas pairs using supported ionic liquid membranes (SILMs) with the immobilized ionic liquids 1-butyl-3-methylimidazolium tetrafluoroborate (bmim[BF4]) and 1-butyl-3-methylimidazolium bis(2-ethylhexyl)sulfosuccinate (bmim[doc]) have been compared. The temperature dependences of the gas permeability, diffusion, and solubility coefficients have been obtained experimentally, and the temperature dependence of selectivity has been calculated. It has been found that the selectivity of membranes based on bmim[BF4] slightly decreases with temperature and the separation selectivity of CO2/N-2 and CO2/CH4 systems on the membranes impregnated with bmim[doc] is almost independent of temperature.
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