Pyrolysis of hardwoods residues: On kinetics and chars characterization

Evolution of chemical and textural-morphological features characterizing two native Argentinean hardwood species (Aspidosperma Quebracho Blanco Schlecht and Aspidosperma Australe) subjected to pyrolysis at different operating conditions is analysed by several techniques. Surface areas of raw materia...

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Autores principales:	Della Rocca, P.A., Cerrella, E.G., Bonelli, P.R., Cukierman, A.L.
Formato:	JOUR
Materias:	Biomass pyrolysis Hardwoods char characterization Hardwoods thermal degradation Pyrolysis kinetics adsorption Aspidosperma carbon dioxide degradation kinetics degradation model nitrogen pyrolysis scanning electron microscopy temperature wood Activation energy Carbon monoxide Gas adsorption Morphology Nitrogen Pyrolysis Reaction kinetics Scanning electron microscopy Thermogravimetric analysis Wood wastes Hardwood char Biomass
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_09619534_v16_n1_p79_DellaRocca
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_09619534_v16_n1_p79_DellaRocca
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spelling	todo:paper_09619534_v16_n1_p79_DellaRocca2023-10-03T15:54:08Z Pyrolysis of hardwoods residues: On kinetics and chars characterization Della Rocca, P.A. Cerrella, E.G. Bonelli, P.R. Cukierman, A.L. Biomass pyrolysis Hardwoods char characterization Hardwoods thermal degradation Pyrolysis kinetics adsorption Aspidosperma carbon dioxide degradation kinetics degradation model nitrogen pyrolysis scanning electron microscopy temperature wood Activation energy Carbon monoxide Gas adsorption Morphology Nitrogen Pyrolysis Reaction kinetics Scanning electron microscopy Thermogravimetric analysis Wood wastes Hardwood char Biomass Evolution of chemical and textural-morphological features characterizing two native Argentinean hardwood species (Aspidosperma Quebracho Blanco Schlecht and Aspidosperma Australe) subjected to pyrolysis at different operating conditions is analysed by several techniques. Surface areas of raw materials and pyrolysed samples are evaluated from physical adsorption measurements employing N2 at 77 K and CO2 at 298 K. The samples are also examined by optical and scanning electronic microscopy. Results point to significant feature changes, which are, in general, strongly affected by pyrolysis conditions, particularly temperature. Furthermore, kinetic measurements of woods pyrolysis are performed by non-isothermal thermogravimetric analysis, from ambient temperature up to 1123K. A deactivation model reported in the literature, which predicts an increase of activation energy with reaction extent, successfully describes kinetic data for both species over the whole range of degradation temperatures. Evolution of chemical and textural-morphological features characterizing two native Argentinean hardwood species (Aspidosperma Quebracho Blanco Schlecht and Aspidosperma Australe) subjected to pyrolysis at different operating conditions is analyzed by several techniques. Surface areas of raw materials and pyrolyzed samples are evaluated from physical adsorption measurements employing N2 at 77 K and CO2 at 298 K. The samples are also examined by optical and scanning electronic microscopy. Results point to significant feature changes, which are, in general, strongly affected by pyrolysis conditions, particularly temperature. Furthermore, kinetic measurements of woods pyrolysis are performed by non-isothermal thermogravimetric analysis, from ambient temperature up to 1123 K. A deactivation model reported in the literature, which predicts an increase of activation energy with reaction extent, successfully describes kinetic data for both species over the whole range of degradation temperatures. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09619534_v16_n1_p79_DellaRocca
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Biomass pyrolysis Hardwoods char characterization Hardwoods thermal degradation Pyrolysis kinetics adsorption Aspidosperma carbon dioxide degradation kinetics degradation model nitrogen pyrolysis scanning electron microscopy temperature wood Activation energy Carbon monoxide Gas adsorption Morphology Nitrogen Pyrolysis Reaction kinetics Scanning electron microscopy Thermogravimetric analysis Wood wastes Hardwood char Biomass
spellingShingle	Biomass pyrolysis Hardwoods char characterization Hardwoods thermal degradation Pyrolysis kinetics adsorption Aspidosperma carbon dioxide degradation kinetics degradation model nitrogen pyrolysis scanning electron microscopy temperature wood Activation energy Carbon monoxide Gas adsorption Morphology Nitrogen Pyrolysis Reaction kinetics Scanning electron microscopy Thermogravimetric analysis Wood wastes Hardwood char Biomass Della Rocca, P.A. Cerrella, E.G. Bonelli, P.R. Cukierman, A.L. Pyrolysis of hardwoods residues: On kinetics and chars characterization
topic_facet	Biomass pyrolysis Hardwoods char characterization Hardwoods thermal degradation Pyrolysis kinetics adsorption Aspidosperma carbon dioxide degradation kinetics degradation model nitrogen pyrolysis scanning electron microscopy temperature wood Activation energy Carbon monoxide Gas adsorption Morphology Nitrogen Pyrolysis Reaction kinetics Scanning electron microscopy Thermogravimetric analysis Wood wastes Hardwood char Biomass
description	Evolution of chemical and textural-morphological features characterizing two native Argentinean hardwood species (Aspidosperma Quebracho Blanco Schlecht and Aspidosperma Australe) subjected to pyrolysis at different operating conditions is analysed by several techniques. Surface areas of raw materials and pyrolysed samples are evaluated from physical adsorption measurements employing N2 at 77 K and CO2 at 298 K. The samples are also examined by optical and scanning electronic microscopy. Results point to significant feature changes, which are, in general, strongly affected by pyrolysis conditions, particularly temperature. Furthermore, kinetic measurements of woods pyrolysis are performed by non-isothermal thermogravimetric analysis, from ambient temperature up to 1123K. A deactivation model reported in the literature, which predicts an increase of activation energy with reaction extent, successfully describes kinetic data for both species over the whole range of degradation temperatures. Evolution of chemical and textural-morphological features characterizing two native Argentinean hardwood species (Aspidosperma Quebracho Blanco Schlecht and Aspidosperma Australe) subjected to pyrolysis at different operating conditions is analyzed by several techniques. Surface areas of raw materials and pyrolyzed samples are evaluated from physical adsorption measurements employing N2 at 77 K and CO2 at 298 K. The samples are also examined by optical and scanning electronic microscopy. Results point to significant feature changes, which are, in general, strongly affected by pyrolysis conditions, particularly temperature. Furthermore, kinetic measurements of woods pyrolysis are performed by non-isothermal thermogravimetric analysis, from ambient temperature up to 1123 K. A deactivation model reported in the literature, which predicts an increase of activation energy with reaction extent, successfully describes kinetic data for both species over the whole range of degradation temperatures.
format	JOUR
author	Della Rocca, P.A. Cerrella, E.G. Bonelli, P.R. Cukierman, A.L.
author_facet	Della Rocca, P.A. Cerrella, E.G. Bonelli, P.R. Cukierman, A.L.
author_sort	Della Rocca, P.A.
title	Pyrolysis of hardwoods residues: On kinetics and chars characterization
title_short	Pyrolysis of hardwoods residues: On kinetics and chars characterization
title_full	Pyrolysis of hardwoods residues: On kinetics and chars characterization
title_fullStr	Pyrolysis of hardwoods residues: On kinetics and chars characterization
title_full_unstemmed	Pyrolysis of hardwoods residues: On kinetics and chars characterization
title_sort	pyrolysis of hardwoods residues: on kinetics and chars characterization
url	http://hdl.handle.net/20.500.12110/paper_09619534_v16_n1_p79_DellaRocca
work_keys_str_mv	AT dellaroccapa pyrolysisofhardwoodsresiduesonkineticsandcharscharacterization AT cerrellaeg pyrolysisofhardwoodsresiduesonkineticsandcharscharacterization AT bonellipr pyrolysisofhardwoodsresiduesonkineticsandcharscharacterization AT cukiermanal pyrolysisofhardwoodsresiduesonkineticsandcharscharacterization
_version_	1782028871501086720

Pyrolysis of hardwoods residues: On kinetics and chars characterization

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