Pyrolysis and combustion of pulp mill lime sludge

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dc.contributor.authorMagalhaes, W. L. E.
dc.contributor.authorJob, Aldo Eloizo [UNESP]
dc.contributor.authorFerreira, C. A.
dc.contributor.authorda Silva, H. D.
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:22:56Z
dc.date.available2014-05-20T13:22:56Z
dc.date.issued2008-07-01
dc.description.abstractThermal degradation and gaseous products evolving from pyrolysis and combustion of pulp mill lime sludge were investigated using Thermogravimetric Analysis in conjunction with Fourier Transform Infrared Analysis (TG-FTIR). The materials were studied in temperatures ranging from 25 to 1000 degrees C. The addition of calcium carbonate caused a decrease in S-containing compounds that evolved from the sludge combustion. The temperature range for decomposition by pyrolysis is higher than for decomposition by combustion. FTIR spectra of the gases evolved show considerable amounts of CO(2), in addition to HNCO and CH(4) absorptions. NH(3) gas was not detected, and sulfur and nitrogen-containing gases only developed in insignificant amounts. The sludge combustion presents two maxima pattern, determined by the CO(2) and H(2)O evolution, that could be associated to the flaming of volatile matter - for the first maximum followed by a glowing of the fixed carbon - for the second maximum. Results show that pulp mill lime sludge can be used as an alternative energy source if pollutant gases and heat expended from dewatering are carefully managed. (C) 2008 Elsevier B.V. All rights reserved.en
dc.description.affiliationEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Forestry, Estrada Ribeira, BR-8341100 Colombo, Brazil
dc.description.affiliationUniv Estadual Paulista, Fac Ciencias & Tecnol, BR-19060080 Presidente Prudente, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciencias & Tecnol, BR-19060080 Presidente Prudente, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent298-303
dc.identifierhttp://dx.doi.org/10.1016/j.jaap.2008.05.005
dc.identifier.citationJournal of Analytical and Applied Pyrolysis. Amsterdam: Elsevier B.V., v. 82, n. 2, p. 298-303, 2008.
dc.identifier.doi10.1016/j.jaap.2008.05.005
dc.identifier.issn0165-2370
dc.identifier.lattes6475585105456744
dc.identifier.urihttp://hdl.handle.net/11449/6829
dc.identifier.wosWOS:000258433800019
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofJournal of Analytical and Applied Pyrolysis
dc.relation.ispartofjcr3.468
dc.relation.ispartofsjr1,129
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectthermal decompositionen
dc.subjectcombustionen
dc.subjectpyrolysisen
dc.subjectpulp sludge analysisen
dc.subjectTG/FTIRen
dc.titlePyrolysis and combustion of pulp mill lime sludgeen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes6475585105456744[2]
unesp.author.orcid0000-0003-4405-293X[1]
unesp.author.orcid0000-0002-1979-8257[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências e Tecnologia, Presidente Prudentept

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