Pressure resistance of thin ionic liquid membranes using tailored ceramic supports

For the first time, a thin ionic liquid membrane that is resistant up to 55 bar trans-membrane pressure is presented. The ionic liquid is confined in a tubular ceramic-supported mesoporous containment layer of 1.5 μm. Gas permeances and permselectivity values for CO2, CH4, ethylene, and ethane are discussed and related to the properties of the ionic liquids.

Figure optionsDownload high-quality image (193 K)Download as PowerPoint slideResearch highlights▶ A pressure resistant mesoporous support was selected. ▶ Restricted flow coating confines the IL in the mesoporous support layer. ▶ IL layers of 1.5 μm were obtained. ▶ Pressure resistance up to 55 bar was shown and separation results obtained.