Kinetic evaluation of the pyrolysis of high density polyethylene over H-AlMCM-41 material

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dc.contributor.authorAraujo, A. S.
dc.contributor.authorFernandes, V. J.
dc.contributor.authorAraujo, S. A.
dc.contributor.authorIonashiro, Massao [UNESP]
dc.contributor.institutionUniversidade Federal do Rio Grande do Norte (UFRN)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:26:55Z
dc.date.available2014-05-20T15:26:55Z
dc.date.issued2002-01-01
dc.description.abstractThe AlMCM-41 material with Si/Al=50 was synthesized by hydrothermal method, using cethyltrimethylammonium as template. The protonic H-AlMCM-41 acid form was obtained by ion exchange with ammonium chloride solution and subsequent calcination. The characterization of the material by several techniques showed that a good-quality MCM-41 material was obtained. High-density polyethylene (HDPE) has been submitted to thermal degradation alone, and in presence of the exchanged H-AlMCM-41 catalyst at a concentration of 1: 1 in mass (H-AlMCM-41/HDPE). The reactor was connected on line to a gas chromatograph connected to a mass spectrometer. This process was evaluated by thermogravimetry (TG), from 350 to 600degreesC, under helium dynamic atmosphere, with heating rates of 5.0; 10.0 and 20.0 degreesC/min. From TG curves, the activation energy, calculated using a multiple heating rate integral kinetic method, decreased from 225.5 KJ.mol(-1), for the pure polymer (HDPE), to 184.7 KJ.mol(-1), in the presence of the catalyst (H-AlMCM-41/HDPE).en
dc.description.affiliationUniv Fed Rio Grande Norte, Dept Chem, BR-59078970 Natal, RN, Brazil
dc.description.affiliationUNESP, Inst Chem, BR-14801970 Araraquara, SP, Brazil
dc.description.affiliationUnespUNESP, Inst Chem, BR-14801970 Araraquara, SP, Brazil
dc.format.extent473-478
dc.identifierhttp://dx.doi.org/10.1016/S0167-2991(02)80578-X
dc.identifier.citationNanoporous Materials Iii. Amsterdam: Elsevier B.V., v. 141, p. 473-478, 2002.
dc.identifier.doi10.1016/S0167-2991(02)80578-X
dc.identifier.issn0167-2991
dc.identifier.lattes8460531302083773
dc.identifier.urihttp://hdl.handle.net/11449/36991
dc.identifier.wosWOS:000180926800059
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofNanoporous Materials Iii
dc.relation.ispartofsjr0,123
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleKinetic evaluation of the pyrolysis of high density polyethylene over H-AlMCM-41 materialen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes8460531302083773
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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Artigos - Química Analítica - IQ