The use of membrane gas separation technology, in addition to its excellent performance for challenging separations, overcomes thermodynamic limitations such as the formation of azeotropes, and for this reason, this method has recently gained much attention instead of traditional energy-intensive methods such as distillation. However, in recent years, much attention has been paid to solving the trade-off between permeability and selectivity as a major challenge in the serious movement of gas membrane separation technology towards industrialization. Therefore, a relatively extensive research has appeared in evaluating the performance of membranes based on porous materials. Due to the unique properties of porous materials, these materials have shown the potential to fabricate thin film membranes and mixed matrix membranes (MMM) with superior performance. The gas separation performance of porous material-based membranes confirms their good commercialization potential, as in most cases, their performance exceeds the Robson upper limit. However, for industrialization, more research is still needed to solve the problems of membrane fabrication, poor mechanical stability (brittleness), poor control of morphology and particle size, poor membrane processability, re-engineering and large-scale implementation methods, and accurate lifetime evaluation.
