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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/102154
Ver los metadatos del registro completo
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 Técnicas2025-09-29T10:36:08Zoai: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:34982025-09-29 10:36:09.193CONICET 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_ |
1844614381616234496 |
score |
13.070432 |