Journal
JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY
Volume 34, Issue 1, Pages 155-164Publisher
GAZI UNIV, FAC ENGINEERING ARCHITECTURE
DOI: 10.17341/gazimmfd.416472
Keywords
Polymer membrane; Gas separation; Polyethersulfone; Al2O3 support
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Funding
- TUBITAK [BIDEB-2218]
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In the present study. polyethersulfone (PES) membranes on a macroporous alumina support was prepared by solvent-deposition method to separate H-2/CH4 mixture. The membrane solution viscosities were determined in order to understand the effect of PES concentration on the formation of selective membranes over a support. Supported PES membranes were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and single gas permeability measurements of H-2 and CH4. The membrane casting solution with 20% PES concentration provided the formation of defecdess single-layer supported membrane. At lower concentrations. the penetration of membrane casting solution into the pores of support was prevented by using intermediate layer. hence the prepared 2-layered membrane performance was improved. H-2/CH4 ideal selectivity of best membrane exhibited is 73 at 35 degrees C. which shows promise for H-2/Hydrocarbon separation.
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