Enhanced Performance of Carbon Molecular Sieve Membranes Incorporating Zeolite Nanocrystals for Air Separation

Membranes

Tae-Hyun Bae¹  Kunli Goh²  Chong Yang Chuah² 

[1] Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea;Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Singapore 637141, Singapore;

关键词: zeolite;    carbon molecular sieve membrane;    air separation;    Robeson upper bound;    mixed-matrix;   

DOI  :  10.3390/membranes11070489

来源: DOAJ

【 摘 要 】

Three different zeolite nanocrystals (SAPO-34, PS-MFI and ETS-10) were incorporated into the polymer matrix (Matrimid^® 5218) as polymer precursors, with the aim of fabricating mixed-matrix carbon molecular sieve membranes (CMSMs). These membranes are investigated for their potential for air separation process. Based on our gas permeation results, incorporating porous materials is feasible to improve O₂ permeability, owing to the creation of additional porosities in the resulting mixed-matrix CMSMs. Owing to this, the performance of the CMSM with 30 wt% PS-MFI loading is able to surpass the upper bound limit. This study demonstrates the feasibility of zeolite nanocrystals in improving O₂/N₂ separation performance in CMSMs.

【 授权许可】

Unknown