The deacetylation reaction in Eucalyptus wood: Kinetics and effects on the effective diffusion

Autores
Inalbon, Maria Cristina; Mocchiutti, Paulina; Zanuttini, Miguel Angel Mario
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The removal of native acetyl groups from hardwood O-acetyl-glucuronoxylan has a strong effect on physical characteristics, accessibility and structure of this polymer. The removal also has effects on the swelling and ion transport capacity of the cell wall of hardwoods. In this work, a kinetic expression for Eucalyptus wood deacetylation is determined. Two liquid mediums are considered: a simple alkaline one and another with a higher sodium concentration. The kinetic expression is a power law for the acetyl content and the concentrations in the liquid medium dependence, and is an Arrhenius type expression for temperature dependence. The kinetic expression can be useful to predict the physical properties of wood since the analysis of deacetylation effects on effective capillarity (ECCSA) shows that the acetyl content is a determining factor of wood ionic transport capacity
Fil: Inalbon, Maria Cristina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina
Fil: Mocchiutti, Paulina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina
Fil: Zanuttini, Miguel Angel Mario. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina
Materia
O-ACETYL-GLUCORONOXYLAN
IONIC STRENGTH
HARDWOOD
ALKALINE IMPREGNATION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/102154
Acceder
id CONICETDig_e5ac8cf42b206572b59d4e31f2d5a820
oai_identifier_str oai:ri.conicet.gov.ar:11336/102154
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The deacetylation reaction in Eucalyptus wood: Kinetics and effects on the effective diffusionInalbon, Maria CristinaMocchiutti, PaulinaZanuttini, Miguel Angel MarioO-ACETYL-GLUCORONOXYLANIONIC STRENGTHHARDWOODALKALINE IMPREGNATIONhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The removal of native acetyl groups from hardwood O-acetyl-glucuronoxylan has a strong effect on physical characteristics, accessibility and structure of this polymer. The removal also has effects on the swelling and ion transport capacity of the cell wall of hardwoods. In this work, a kinetic expression for Eucalyptus wood deacetylation is determined. Two liquid mediums are considered: a simple alkaline one and another with a higher sodium concentration. The kinetic expression is a power law for the acetyl content and the concentrations in the liquid medium dependence, and is an Arrhenius type expression for temperature dependence. The kinetic expression can be useful to predict the physical properties of wood since the analysis of deacetylation effects on effective capillarity (ECCSA) shows that the acetyl content is a determining factor of wood ionic transport capacityFil: Inalbon, Maria Cristina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; ArgentinaFil: Mocchiutti, Paulina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; ArgentinaFil: Zanuttini, Miguel Angel Mario. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; ArgentinaElsevier2009-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/102154Inalbon, Maria Cristina; Mocchiutti, Paulina; Zanuttini, Miguel Angel Mario; The deacetylation reaction in Eucalyptus wood: Kinetics and effects on the effective diffusion; Elsevier; Bioresource Technology; 100; 7; 4-2009; 2254-22580960-8524CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.biortech.2008.10.054info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:08:30Zoai:ri.conicet.gov.ar:11336/102154instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 12:08:30.922CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The deacetylation reaction in Eucalyptus wood: Kinetics and effects on the effective diffusion
title The deacetylation reaction in Eucalyptus wood: Kinetics and effects on the effective diffusion
spellingShingle The deacetylation reaction in Eucalyptus wood: Kinetics and effects on the effective diffusion
Inalbon, Maria Cristina
O-ACETYL-GLUCORONOXYLAN
IONIC STRENGTH
HARDWOOD
ALKALINE IMPREGNATION
title_short The deacetylation reaction in Eucalyptus wood: Kinetics and effects on the effective diffusion
title_full The deacetylation reaction in Eucalyptus wood: Kinetics and effects on the effective diffusion
title_fullStr The deacetylation reaction in Eucalyptus wood: Kinetics and effects on the effective diffusion
title_full_unstemmed The deacetylation reaction in Eucalyptus wood: Kinetics and effects on the effective diffusion
title_sort The deacetylation reaction in Eucalyptus wood: Kinetics and effects on the effective diffusion
dc.creator.none.fl_str_mv Inalbon, Maria Cristina
Mocchiutti, Paulina
Zanuttini, Miguel Angel Mario
author Inalbon, Maria Cristina
author_facet Inalbon, Maria Cristina
Mocchiutti, Paulina
Zanuttini, Miguel Angel Mario
author_role author
author2 Mocchiutti, Paulina
Zanuttini, Miguel Angel Mario
author2_role author
author
dc.subject.none.fl_str_mv O-ACETYL-GLUCORONOXYLAN
IONIC STRENGTH
HARDWOOD
ALKALINE IMPREGNATION
topic O-ACETYL-GLUCORONOXYLAN
IONIC STRENGTH
HARDWOOD
ALKALINE IMPREGNATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The removal of native acetyl groups from hardwood O-acetyl-glucuronoxylan has a strong effect on physical characteristics, accessibility and structure of this polymer. The removal also has effects on the swelling and ion transport capacity of the cell wall of hardwoods. In this work, a kinetic expression for Eucalyptus wood deacetylation is determined. Two liquid mediums are considered: a simple alkaline one and another with a higher sodium concentration. The kinetic expression is a power law for the acetyl content and the concentrations in the liquid medium dependence, and is an Arrhenius type expression for temperature dependence. The kinetic expression can be useful to predict the physical properties of wood since the analysis of deacetylation effects on effective capillarity (ECCSA) shows that the acetyl content is a determining factor of wood ionic transport capacity
Fil: Inalbon, Maria Cristina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina
Fil: Mocchiutti, Paulina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina
Fil: Zanuttini, Miguel Angel Mario. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología Celulósica; Argentina
description The removal of native acetyl groups from hardwood O-acetyl-glucuronoxylan has a strong effect on physical characteristics, accessibility and structure of this polymer. The removal also has effects on the swelling and ion transport capacity of the cell wall of hardwoods. In this work, a kinetic expression for Eucalyptus wood deacetylation is determined. Two liquid mediums are considered: a simple alkaline one and another with a higher sodium concentration. The kinetic expression is a power law for the acetyl content and the concentrations in the liquid medium dependence, and is an Arrhenius type expression for temperature dependence. The kinetic expression can be useful to predict the physical properties of wood since the analysis of deacetylation effects on effective capillarity (ECCSA) shows that the acetyl content is a determining factor of wood ionic transport capacity
publishDate 2009
dc.date.none.fl_str_mv 2009-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/102154
Inalbon, Maria Cristina; Mocchiutti, Paulina; Zanuttini, Miguel Angel Mario; The deacetylation reaction in Eucalyptus wood: Kinetics and effects on the effective diffusion; Elsevier; Bioresource Technology; 100; 7; 4-2009; 2254-2258
0960-8524
CONICET Digital
CONICET
url http://hdl.handle.net/11336/102154
identifier_str_mv Inalbon, Maria Cristina; Mocchiutti, Paulina; Zanuttini, Miguel Angel Mario; The deacetylation reaction in Eucalyptus wood: Kinetics and effects on the effective diffusion; Elsevier; Bioresource Technology; 100; 7; 4-2009; 2254-2258
0960-8524
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.biortech.2008.10.054
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846782456455233536
score 12.982451

Publicaciones similares