Preparation of activated charcoal from Acrocomia aculeata for purification of pretreated crude glycerol
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s13399-020-00745-7 http://hdl.handle.net/11449/200517 |
Resumo: | Activated 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. |
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Preparation of activated charcoal from Acrocomia aculeata for purification of pretreated crude glycerolEndocarp pulp of Acrocomia aculeataMicroporous-mesoporous charcoalPrepared charcoalPurification of crude glycerol by adsorptionActivated 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.Department of Pharmacy Universidade Federal dos Vales do Jequitinhonha e Mucuri-UFVJM Campus JK, Rodovia MGT 367-Km 583, N° 5000, Alto da JacubaDepartment of General and Inorganic Chemistry Institute of Chemistry São Paulo State University-Unesp, R. Prof. Francisco Degni 55, QuitandinhaDepartment of Physics and Chemistry Faculdade de Ciências Farmacêuticas de Ribeirão Preto São Paulo University-USP, Av. Do Café s/nUniversidade de Franca, Av. Dr. Armando Sales Oliveira, 201, C.P. 82Laboratório de Química Bioinorgânica Departamento de Química Faculdade de Filosofia Ciências e Letras de Ribeirão Preto Universidade de São Paulo, Av. Bandeirantes, 3900USTAR Bioenergy Center Biological Engineering Utah State UniversityResearch Institute for Medicines (iMed.ULisboa) Faculty of Pharmacy Universidade de Lisboa, Av. Prof. Gama PintoFaculdade de Ciências Farmacêuticas Alimentos e Nutrição Universidade Federal de Mato Grosso do Sul-UFMS, Av. Costa e Silva, s.nDepartment of General and Inorganic Chemistry Institute of Chemistry São Paulo State University-Unesp, R. Prof. Francisco Degni 55, QuitandinhaUniversidade Federal de Viçosa (UFV)Universidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Universidade de FrancaUtah State UniversityUniversidade de LisboaUniversidade Federal de Mato Grosso do Sul (UFMS)Barbosa, Sandro L.de Freitas, Milton S.dos Santos, Wallans T. P.Nelson, David Leede Freitas Marques, Maria BetâniaKlein, Stanlei I. [UNESP]Clososki, Giuliano C.Caires, Franco J.Nassar, Eduardo J.Zanatta, Lucas D.Agblevor, Foster A.Afonso, Carlos A. M.Moraes Baroni, Adriano C.2020-12-12T02:08:40Z2020-12-12T02:08:40Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/s13399-020-00745-7Biomass Conversion and Biorefinery.2190-68232190-6815http://hdl.handle.net/11449/20051710.1007/s13399-020-00745-72-s2.0-85085397271Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBiomass Conversion and Biorefineryinfo:eu-repo/semantics/openAccess2021-10-23T14:33:49Zoai:repositorio.unesp.br:11449/200517Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:27:10.389365Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Preparation of activated charcoal from Acrocomia aculeata for purification of pretreated crude glycerol |
title |
Preparation of activated charcoal from Acrocomia aculeata for purification of pretreated crude glycerol |
spellingShingle |
Preparation of activated charcoal from Acrocomia aculeata for purification of pretreated crude glycerol Barbosa, Sandro L. Endocarp pulp of Acrocomia aculeata Microporous-mesoporous charcoal Prepared charcoal Purification of crude glycerol by adsorption |
title_short |
Preparation of activated charcoal from Acrocomia aculeata for purification of pretreated crude glycerol |
title_full |
Preparation of activated charcoal from Acrocomia aculeata for purification of pretreated crude glycerol |
title_fullStr |
Preparation of activated charcoal from Acrocomia aculeata for purification of pretreated crude glycerol |
title_full_unstemmed |
Preparation of activated charcoal from Acrocomia aculeata for purification of pretreated crude glycerol |
title_sort |
Preparation of activated charcoal from Acrocomia aculeata for purification of pretreated crude glycerol |
author |
Barbosa, Sandro L. |
author_facet |
Barbosa, Sandro L. de Freitas, Milton S. dos Santos, Wallans T. P. Nelson, David Lee de Freitas Marques, Maria Betânia Klein, Stanlei I. [UNESP] Clososki, Giuliano C. Caires, Franco J. Nassar, Eduardo J. Zanatta, Lucas D. Agblevor, Foster A. Afonso, Carlos A. M. Moraes Baroni, Adriano C. |
author_role |
author |
author2 |
de Freitas, Milton S. dos Santos, Wallans T. P. Nelson, David Lee de Freitas Marques, Maria Betânia Klein, Stanlei I. [UNESP] Clososki, Giuliano C. Caires, Franco J. Nassar, Eduardo J. Zanatta, Lucas D. Agblevor, Foster A. Afonso, Carlos A. M. Moraes Baroni, Adriano C. |
author2_role |
author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de Viçosa (UFV) Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) Universidade de Franca Utah State University Universidade de Lisboa Universidade Federal de Mato Grosso do Sul (UFMS) |
dc.contributor.author.fl_str_mv |
Barbosa, Sandro L. de Freitas, Milton S. dos Santos, Wallans T. P. Nelson, David Lee de Freitas Marques, Maria Betânia Klein, Stanlei I. [UNESP] Clososki, Giuliano C. Caires, Franco J. Nassar, Eduardo J. Zanatta, Lucas D. Agblevor, Foster A. Afonso, Carlos A. M. Moraes Baroni, Adriano C. |
dc.subject.por.fl_str_mv |
Endocarp pulp of Acrocomia aculeata Microporous-mesoporous charcoal Prepared charcoal Purification of crude glycerol by adsorption |
topic |
Endocarp pulp of Acrocomia aculeata Microporous-mesoporous charcoal Prepared charcoal Purification of crude glycerol by adsorption |
description |
Activated 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. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T02:08:40Z 2020-12-12T02:08:40Z 2020-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s13399-020-00745-7 Biomass Conversion and Biorefinery. 2190-6823 2190-6815 http://hdl.handle.net/11449/200517 10.1007/s13399-020-00745-7 2-s2.0-85085397271 |
url |
http://dx.doi.org/10.1007/s13399-020-00745-7 http://hdl.handle.net/11449/200517 |
identifier_str_mv |
Biomass Conversion and Biorefinery. 2190-6823 2190-6815 10.1007/s13399-020-00745-7 2-s2.0-85085397271 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Biomass Conversion and Biorefinery |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128654209712128 |