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Rahimalimamaghani, A.; Pacheco Tanaka, D.A.; Llosa Tanco, M.A.; Neira D'Angelo, F.; Gallucci, F.
Chemical engineering journal (Lausanne, Switzerland : 1996), 05/2022, Letnik: 435Journal Article
Display omitted •Carbon molecular sieve membranes were developed for ethanol dehydration.•alumina supports result in 48% thicker membranes than zirconia supports.•Higher performance compared with other membranes are reported.•Membranes are stable over a long period of time in permeation mode. Tubular supported carbon molecular sieve membranes (CMSMs) with high hydrophilicity and perm-selectivities for water suitable for ethanol dehydration were developed from a Novolac oligomer phenolic resin as precursor. Alpha alumina supported CMSMs resulted in 1.69 times higher surface roughness than zirconia supports. The higher surface roughness resulted in 48% higher selective layer thickness. According to pervaporation results, water permeance decreased by the increase in selective layer thickness and mole based selectivity of water- ethanol was enhanced. The oligomer with 3982 g/mol molecular weight enabled membrane to reach high selectivity with one-layer coating. Performance of the membranes are compared with literature data in terms of mole-based selectivity vs. water permeance. CMSMs could be a potential substitution for traditional ethanol dehydration methods with offering higher performance and as a result reducing the final price of bioethanol to be used as a sustainable energy source.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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