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Production of biodiesel by esterification of palmitic acid over mesoporous aluminosilicate Al-MCM-41

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dc.contributor.authorCarmo, Alipio C.
dc.contributor.authorde Souza, Luiz K. C.
dc.contributor.authorda Costa, Carlos E. F.
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorZamian, Jose R.
dc.contributor.authorda Rocha Filho, Geraldo N.
dc.contributor.institutionFed Univ Para
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:17:38Z
dc.date.available2014-05-20T14:17:38Z
dc.date.issued2009-03-01
dc.description.abstractBiodiesel has been obtained by esterification of palmitic acid with methanol, ethanol and isopropanol in the presence of Al-MCM-41 mesoporous molecular sieves with Si/Al ratios of 8.16 and 32. The catalytic acids were synthesized at room temperature and characterized by atomic absorption spectrometry (AAS), thermal analysis (TG/DTA), X-ray diffraction (XRD), nitrogen absorption (BET/BJH), infrared spectroscopy (IR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The reaction was carried out at 130 degrees C whilst stirring at 500 rpm, with an alcohol/acid molar ratio of 60 and 0.6 wt% catalyst for 2 h. The alcohol reactivity follows the order methanol > ethanol > isopropanol. The catalyst Al-MCM-41 with ratio Si/Al = 8 produced the largest conversion values for the alcohols studied. The data followed a rather satisfactory approximation to first-order kinetics. (C) 2008 Elsevier Ltd. All rights reserved.en
dc.description.affiliationFed Univ Para, Inst Ciencias Exatas & Nat, Fac Quim, Lab Catalise & Oleoquim, BR-66075110 Belem, Para, Brazil
dc.description.affiliationUniv Estadual Paulista Julio Mesquita Filho UNESP, Inst Quim Araraquara, Dept Bioquim & Tecnol Quim, BR-14801907 Araraquara, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista Julio Mesquita Filho UNESP, Inst Quim Araraquara, Dept Bioquim & Tecnol Quim, BR-14801907 Araraquara, SP, Brazil
dc.description.sponsorshipLaboratorio de Pesquisa e Analise de Combustiveis (LAPAC/UFPa)
dc.format.extent461-468
dc.identifierhttp://dx.doi.org/10.1016/j.fuel.2008.10.007
dc.identifier.citationFuel. Oxford: Elsevier B.V., v. 88, n. 3, p. 461-468, 2009.
dc.identifier.doi10.1016/j.fuel.2008.10.007
dc.identifier.issn0016-2361
dc.identifier.urihttp://hdl.handle.net/11449/25285
dc.identifier.wosWOS:000262877300009
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofFuel
dc.relation.ispartofjcr4.908
dc.relation.ispartofsjr1,891
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectMesoporousen
dc.subjectMolecular sievesen
dc.subjectAcid catalysts biodieselen
dc.subjectEsterificationen
dc.titleProduction of biodiesel by esterification of palmitic acid over mesoporous aluminosilicate Al-MCM-41en
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt
unesp.departmentBioquímica e Tecnologia - IQpt

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Araraquara - IQAR - Instituto de Química