High-efficiency pervaporative separation of fuel bioadditive methylal from methanol by poly(vinyl alcohol)/poly(vinylpyrrolidone) blend membrane

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dc.contributor.authorUnlu, Derya
dc.date.accessioned2026-02-12T21:05:41Z
dc.date.available2026-02-12T21:05:41Z
dc.date.issued2023
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractMethylal is a fuel bioadditive. The purification of methylal has been conducted by the pervaporation process. The purification of methylal from the reaction mixture is required to use the methylal as a fuel additive for diesel or biodiesel. In this study, poly(vinyl alcohol) (PVA) and poly(vinylpyrrolidone) (PVP) polymers were used and the blend membrane was prepared by using these polymers. The prepared PVA/PVP blend membranes have been utilized for the separation of methylal/methanol binary mixtures and methylal/methanol/water ternary mixtures in a pervaporation process. Membranes were characterized by Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), Thermogravimetric analysis (TGA), contact angle measurements and X-ray Diffraction Analysis (XRD). Pervaporation tests were performed at different feed concentrations, operation temperatures and PVP loading ratios. The best separation performance was obtained at 10 wt. % of PVP loaded membrane. Optimum process conditions were determined as 30 degrees C of operation temperature and 5 wt. % of feed methanol concentration. Under these conditions, methanol flux and methanol selectivity values were 0.21 kg/m(2) h and 98.01, respectively. Approximately, 99% of purity methylal has been achieved in the retentate stream by removing the methanol. The innovation of this study is to develop an alternative method, which is of high purity and low energy consumption according to the literature, for the purification of methylal biofuels.
dc.identifier.doi10.1007/s43153-022-00231-9
dc.identifier.endpage268
dc.identifier.issn0104-6632
dc.identifier.issn1678-4383
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85125477437
dc.identifier.scopusqualityQ3
dc.identifier.startpage257
dc.identifier.urihttps://doi.org/10.1007/s43153-022-00231-9
dc.identifier.urihttps://hdl.handle.net/20.500.12885/7087
dc.identifier.volume40
dc.identifier.wosWOS:000762885100001
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer Heidelberg
dc.relation.ispartofBrazilian Journal of Chemical Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260212
dc.subjectFuel bioadditive
dc.subjectMembrane
dc.subjectMethanol
dc.subjectMethylal
dc.subjectPervaporation
dc.subjectSeparation
dc.titleHigh-efficiency pervaporative separation of fuel bioadditive methylal from methanol by poly(vinyl alcohol)/poly(vinylpyrrolidone) blend membrane
dc.typeArticle

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