Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/12508
Full metadata record
DC FieldValueLanguage
dc.contributor.authorKalkandelen, Mustafaen_US
dc.contributor.authorYılmaz, Selahattinen_US
dc.date.accessioned2022-10-03T12:54:19Z-
dc.date.available2022-10-03T12:54:19Z-
dc.date.issued2022-11-
dc.identifier.urihttps://doi.org/10.1016/j.indcrop.2022.115656-
dc.identifier.urihttps://hdl.handle.net/11147/12508-
dc.description.abstractMesoporous heterogeneous catalysts were synthesized to develop environmentally benign catalysts for soybean oil's (Glycine max) epoxidation. The investigated materials were sulfated lanthanum doped titania silica xerogel (SO4/La-TiO2-SiO2), and Ti and Nb incorporated SBA-15 with two different silica/metal molar ratios of 10 and 20. Soybean oil epoxidation reactions were performed in tert-butanol by utilizing H2O2 as oxidant at 75 °C for 6 h. Product analysis was carried out by H NMR, FTIR, and analytical methods. Nb-SBA-15 catalysts yielded better conversion than Ti-SBA-15 catalysts owing to their high acidity. However, epoxide selectivity was found low for both catalyst groups due to water in the medium that promoted side reactions. Tert-butanol and ethyl acetate were studied as solvents, but employing ethyl acetate in the reactions triggered catalysts aggregation and deposition on the reactor surface. Stability tests indicated the robustness of Ti and Nb against leaching, whereas sulfur leaching was noted with SO4/La-TiO2-SiO2 catalyst. The most active Nb-SBA-15 (10) catalyst was also applied in the epoxidation of soybean-derived fatty acid methyl esters (FAME). The results showed that small-sized FAME molecules did not enhance the reaction rate. Reusability tests indicated that Nb-SBA-15 (10) was active in epoxidation for at least three cycles.en_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofIndustrial Crops and Productsen_US
dc.rightsinfo:eu-repo/semantics/embargoedAccessen_US
dc.subjectFAME mixture epoxidationen_US
dc.subjectMesoporous catalystsen_US
dc.subjectSolid acid catalystsen_US
dc.subjectSulfated lanthanum titania silicateen_US
dc.subjectSoybean oil epoxidationen_US
dc.titleEpoxidation of soybean oil over titanium or niobium incorporated SBA-15 and sulfated lanthanum titania silicate catalystsen_US
dc.typeArticleen_US
dc.authorid0000-0003-2853-0751en_US
dc.institutionauthorKalkandelen, Mustafaen_US
dc.institutionauthorYılmaz, Selahattinen_US
dc.departmentİzmir Institute of Technology. Chemical Engineeringen_US
dc.identifier.wosWOS:000878685000086en_US
dc.identifier.scopus2-s2.0-85138333029en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1016/j.indcrop.2022.115656-
dc.relation.issn0926-6690en_US
dc.description.volume188en_US
dc.identifier.scopusqualityQ1-
item.fulltextWith Fulltext-
item.cerifentitytypePublications-
item.openairetypeArticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextembargo_20250101-
item.languageiso639-1en-
crisitem.author.dept03.02. Department of Chemical Engineering-
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
Files in This Item:
File Description SizeFormat 
1-s2.0-S0926669022011396-main.pdf
  Until 2025-01-01
Article (Makale)10.58 MBAdobe PDFView/Open    Request a copy
Show simple item record



CORE Recommender

SCOPUSTM   
Citations

3
checked on Apr 5, 2024

WEB OF SCIENCETM
Citations

2
checked on Mar 23, 2024

Page view(s)

118
checked on May 20, 2024

Google ScholarTM

Check




Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.