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dc.contributor.authorGoncalves, Maraisa [UNIFESP]
dc.contributor.authorRodrigues, Raphael
dc.contributor.authorGalhardo, Thalita S.
dc.contributor.authorCarvalho, Wagner A.
dc.identifier.citationFuel. Oxford, v. 181, p. 46-54, 2016.
dc.description.abstractThe glycerol acetalization reaction in the presence of acetone was evaluated using acidic carbon-based catalysts from biodiesel waste as catalysts. Acidic carbon-based catalysts were prepared with different glycerin: sulfuric acid mass ratios at 457 K for 24 h. The amount of acid groups as well as the acidity (mainly attributed to sulfur groups) enhance with an increase of glycerol: sulfuric acid ratio (1: 2 and 1: 3, named GC-1: 2 and GC-1: 3, respectively), reaching 0.9 mmol g(-1) for sulfur and 3.8 mmol g(-1) for total acidity. Very promising results were obtained when these carbon-based catalysts were tested as catalysts in glycerol acetalization, reaching about 80% of glycerol conversion and about 95% of solketal selectivity, this product has been applied as a fuel additive. Furthermore, the carbon-based catalysts surface groups showed high stability under the reaction conditions tested in this study. These results indicated that acidic carbon-based catalysts derived from glycerin are very attractive catalysts for glycerol acetalization. (C) 2016 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.publisherElsevier Sci Ltd
dc.rightsAcesso restrito
dc.subjectWaste recoveryen
dc.subjectAcidic carbon-based catalystsen
dc.subjectFuel additiveen
dc.subjectGlycerol conversionen
dc.titleHighly selective acetalization of glycerol with acetone to solketal over acidic carbon-based catalysts from biodiesel wasteen
dc.description.affiliationFed Univ ABC, Ctr Nat & Human Sci, Santa Adelia St 166, BR-09210170 Santo Andre, SP, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Inst Sci & Technol, Talim St 330, BR-12231280 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUnifespScience and Technology Institute, Universidade Federal de São Paulo (UNIFESP), Talim Street, 330, São José dos Campos, SP 12231-280, Brazil
dc.description.sponsorshipIDFAPESP: 2011/22264-4
dc.description.sponsorshipIDFAPESP: 2013/21160-6
dc.description.sponsorshipIDFAPESP: 2014/18529-0
dc.description.sourceWeb of Science

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