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Separation of Acidic Gases from Methane by Supported Ionic Liquid Membranes
, M.Sc. Thesis Sharif University of Technology ; Seifkordi, Ali Akbar (Supervisor) ; Adibi, Mina (Supervisor)
Abstract
Supported ionic liquid membranes are prepared by filling the pores of a porous membrane with ionic liquids. Permeability values of carbon dioxide and methane and also selectivity value of CO2⁄CH4 through ionic liquids stabilized on porous alumina membrane supports have been experimentally investigated. We have used [hmim][Tf2N] and two synthesized ionic liquids, 1,6-Di(3-methylimidazolium)hexane bis(trifluoromethylsulfonyl)imide (h[mim]2[Tf2N]2) and 1,3-Di(3-methylimidazolium)propane bis(trifluoromethylsulfonyl)imide (pr[mim]2[Tf2N]2) in our research. The experiments have been done in the temperature range of 27–45 ℃ and pressures of 10–50 kPa and the impact of the temperature and pressure...
Using Supported Ionic Liquid Membranes (SILMs) for Selective Separation of CO2/CH4
, M.Sc. Thesis Sharif University of Technology ; Rashtchian ,Davood (Supervisor) ; Adibi, Mina (Supervisor)
Abstract
Supported Ionic Liquid Membranes (SILMs) are fabricated by saturating the pores of a porous support with ionic liquids. To assess the performance of SILMS, it is necessary to obtain data about the properties of ionic liquids such as diffusivity, solubility, and etc. To accomplish this task, in this project the permeability and diffusivity of CO2 and CH4 through three immidazolium-based ionic liquids: [bmim][PF6], [hmim][Tf2N], and "1-methyl-3-(3- tri methoxi silil propyl) imidazolium bis (tri fluoro methyl solphonyl)" , in the temperature range between 27-45 ℃ and pressures within 10-50 kPa, are measured. It is shown in data validation section that the results of this study are in good...