Effect of filler functional groups on gas separation properties of PEBA-CNT mixed matrix membranes
Publish place: 4th International Conference on Recent innovations in chemistry and chemical engineering
Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
CHCONF04_039
تاریخ نمایه سازی: 8 آذر 1396
Abstract:
Poly ether-block-amide (PEBA) is a polymeric membrane material which being used in CO2/N2separation. In order to further improve its gas separation capability and develop a membrane with asuperior performance, modified multi-walled carbon nanotubes (mMWCNTs) were incorporated into thePEBA matrix. In this study, the gas separation performance of PEBA and PEBA/mMWCNTs mixed matrixmembranes (MMMs) was investigated for N2 and CO2 at different pressures. The carboxylic MWCNTs toembedding in the polymeric matrix, were functionalized with cyanate groups. Prepared MMMs werecharacterized by FTIR, XRD and AFM tests. The cyanate functionalized MMM showed 4% increase in thepermeability of CO2 at 20 ˚C and 13 bar compared to the neat membrane. Moreover results illustrates 53%enhancement in selectivity of CO2/N2. The MMMs containing fillers overcomes the CO2/N2 Robeson supper bound and cyanate functionalized MMM showed better gas separation performance.
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Authors
Farid Amirkhani
Separation Processes Research Group (SPRG), Department of Engineering, University of Kashan, Kashan, Iran
Morteza Asghari
Separation Processes Research Group (SPRG), Department of Engineering, University of Kashan, Kashan, Iran