New hydrophilic carbon molecular sieve membranes for bioethanol dehydration via pervaporation
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2022-05-01
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Abstract
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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Publisher Copyright: © 2022 The Author(s)
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Carbon membranes , Bioethanol dehydration , Pervaporation , Novolac resin , Supported carbon membranes , Carbon membranes , Bioethanol dehydration , Pervaporation , Novolac resin , Supported carbon membranes , General Chemistry , Environmental Chemistry , General Chemical Engineering , Industrial and Manufacturing Engineering , SDG 7 - Affordable and Clean Energy , Funding Info , The research has been carried out within the TTW Perspectief Pro-gramme “Microsync” project number P16-10 , The research has been carried out within the TTW Perspectief Pro-gramme “Microsync” project number P16-10
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Rahimalimamaghani , A , Pacheco Tanaka , D A , Llosa Tanco , M A , Neira D'Angelo , F & Gallucci , F 2022 , ' New hydrophilic carbon molecular sieve membranes for bioethanol dehydration via pervaporation ' , Chemical Engineering Journal , vol. 435 Part 1 , 134891 , pp. 134891 . https://doi.org/10.1016/j.cej.2022.134891