Preparation of activated charcoal from Acrocomia aculeata for purification of pretreated crude glycerol

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal de Viçosa (UFV)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade de Franca-
Autor(es): dc.contributorUtah State University-
Autor(es): dc.contributorUniversidade de Lisboa-
Autor(es): dc.contributorUniversidade Federal de Mato Grosso do Sul (UFMS)-
Autor(es): dc.creatorBarbosa, Sandro L.-
Autor(es): dc.creatorde Freitas, Milton S.-
Autor(es): dc.creatordos Santos, Wallans T. P.-
Autor(es): dc.creatorNelson, David Lee-
Autor(es): dc.creatorde Freitas Marques, Maria Betânia-
Autor(es): dc.creatorKlein, Stanlei I. [UNESP]-
Autor(es): dc.creatorClososki, Giuliano C.-
Autor(es): dc.creatorCaires, Franco J.-
Autor(es): dc.creatorNassar, Eduardo J.-
Autor(es): dc.creatorZanatta, Lucas D.-
Autor(es): dc.creatorAgblevor, Foster A.-
Autor(es): dc.creatorAfonso, Carlos A. M.-
Autor(es): dc.creatorMoraes Baroni, Adriano C.-
Data de aceite: dc.date.accessioned2022-02-22T00:30:54Z-
Data de disponibilização: dc.date.available2022-02-22T00:30:54Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2019-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s13399-020-00745-7-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/200517-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/200517-
Descrição: dc.descriptionActivated charcoal was prepared from Acrocomia aculeata (macaúba) endocarp by ZnCl2 activation and then used for the adsorptive purification of pretreated crude glycerol (CG) containing pigments, such as β-carotene. The pretreatment of glycerol involved filtration of the K3PO4 formed by the addition of H3PO4 to the crude glycerol containing KOH. A mixture of 1.38:1 w/w of ZnCl2:Acrocomia aculeata pulp was heated at 120 °C with stirring for 24 h. The mixture was activated by heating at 600 °C for 3 h. The activated charcoal was cooled to 25 °C, washed with a 1:1 mixture of methanol and water (100 mL) and heated at 150 °C for 2 h. The surface properties of the activated charcoal (surface area 627 m2 g−1, pore volume 0.39 m3 g−1, Bronsted sites 118.23 μmol g−1, and Lewis sites 104.86 μmol g−1) and the adsorption capacity for impurities in H3PO4-pretreated crude glycerol were investigated. The activated charcoal exhibited the most suitable surface properties for the purification of pretreated crude glycerol, attaining a 95.99% glycerol concentration (by GC) using 10 g/L with gravity filtration through a column at room temperature over a 48-h period. The purified glycerol was characterized by GC/MS, 1H- and 13C-NMR, and DSC and TG analyses. The activated charcoal was regenerated by washing with methanol and hexane and heating to 150 °C for 5 h. The activated charcoal could be re-used three times to remove all of the pigments before it was necessary to re-activate the charcoal by heating with ZnCl2.-
Descrição: dc.descriptionDepartment of Pharmacy Universidade Federal dos Vales do Jequitinhonha e Mucuri-UFVJM Campus JK, Rodovia MGT 367-Km 583, N° 5000, Alto da Jacuba-
Descrição: dc.descriptionDepartment of General and Inorganic Chemistry Institute of Chemistry São Paulo State University-Unesp, R. Prof. Francisco Degni 55, Quitandinha-
Descrição: dc.descriptionDepartment of Physics and Chemistry Faculdade de Ciências Farmacêuticas de Ribeirão Preto São Paulo University-USP, Av. Do Café s/n-
Descrição: dc.descriptionUniversidade de Franca, Av. Dr. Armando Sales Oliveira, 201, C.P. 82-
Descrição: dc.descriptionLaboratório de Química Bioinorgânica Departamento de Química Faculdade de Filosofia Ciências e Letras de Ribeirão Preto Universidade de São Paulo, Av. Bandeirantes, 3900-
Descrição: dc.descriptionUSTAR Bioenergy Center Biological Engineering Utah State University-
Descrição: dc.descriptionResearch Institute for Medicines (iMed.ULisboa) Faculty of Pharmacy Universidade de Lisboa, Av. Prof. Gama Pinto-
Descrição: dc.descriptionFaculdade de Ciências Farmacêuticas Alimentos e Nutrição Universidade Federal de Mato Grosso do Sul-UFMS, Av. Costa e Silva, s.n-
Descrição: dc.descriptionDepartment of General and Inorganic Chemistry Institute of Chemistry São Paulo State University-Unesp, R. Prof. Francisco Degni 55, Quitandinha-
Idioma: dc.languageen-
Relação: dc.relationBiomass Conversion and Biorefinery-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectEndocarp pulp of Acrocomia aculeata-
Palavras-chave: dc.subjectMicroporous-mesoporous charcoal-
Palavras-chave: dc.subjectPrepared charcoal-
Palavras-chave: dc.subjectPurification of crude glycerol by adsorption-
Título: dc.titlePreparation of activated charcoal from Acrocomia aculeata for purification of pretreated crude glycerol-
Tipo de arquivo: dc.typelivro digital-
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