Abstract
In this research, the effect of adding MIL-100 (Fe) MOFs on the PEBAX membranes has been scrutinized in two grades of 1657 and 2533. Initially, the intended membranes were synthesized by the solution-casting method. Then, the XRD and SEM were applied to deliberate the influence of adding MIL-100 (Fe) to the structure of both types of membranes. In consequence, the separation function of the pair gases of CO2/CH4، CO2/N2 and CO2/O2 and their permeability were considered at the pressure of 3.5 bar and temperature of 25°C. Eventually, their function was compared by Robeson diagrams of 1991 and 2008. The comparison results by Robeson diagrams indicated that the PEBAX1657/MIL-100 (Fe) and PEBAX2533/MIL-100 (Fe) membranes containing 5 wt.% of MOF represent more suitable performance in separating CO2/CH4 in comparison with the axis of the Robeson diagram. However, their function for separating the aforementioned gases requires more modifications.
