Enhanced biogas (Co2/Ch4) separation performance of hybrid mixed matrix membrane by incorporating nanosilica particles into polyethersulfone

This paper studies the gas transport properties of pes-nanosilica hybrid mixed matrix membrane for biogas purification. problem statement: the hybrid mixed matrix membrane was produced to improve the membrane separation performance for biogas purification. the membrane was produced via dry-wet phase inversion method,in which the nanosilica was incorporated into polyethersulfone membranes and the prepared membrane was performed on biogas separation experimental test. quantitative result: the sem images analysis confirmed that nanosilica surface had taken important role in gas transport properties. moreover,the nano-gaps (voids) between polymer and nanosilica particles were disappeared in the polyethersulfone hybrid mixed matrix membrane. the results revealed that the good nano-silica dispersion leads to enhance the properties of gas permeation up to 200% and slighly increased the selectivity about 0.9% of the nanosilica concentration 8 wt-%. conclusion: it can be concluded that incorporation of nanosilicas particles into the matrix of polyethersulfone polymer significantly enhanced the membrane structure and separation properties. © 2017 penerbit utm press. all rights reserved.