Comparative Study on Char Properties and Pyrolysis Kinetics of Different Lignocellulosic Wastes

Chemical composition, heating values and surface properties of the char samples generated fkom slow pyrolysis of different abundant lignocellulosic wastes under identical operating conditions were examined to assess comparatively their suitability for potential use as biofuel andor for further proce...

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Autores principales: Bonelli, Pablo R., Della Rocca, Patricia A., Cukierman, Ana Lea
Publicado: 2008
Materias:
Aspidosperma australe
Lignocellulosic wastes
Populus deltoide
Pyrolysis kinetics
Thermogravimetric curves
Activated carbon
Activation energy
Biofuels
Carbon dioxide
Cracking (chemical)
Kinetic parameters
Oilseeds
Surface properties
Thermogravimetric analysis
Wastes
Aspidosperma
Populus
Thermogravimetric curve
Parameter estimation
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97804706_v_n_p1116_Bonelli
http://hdl.handle.net/20.500.12110/paper_97804706_v_n_p1116_Bonelli
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_97804706_v_n_p1116_Bonelli
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spelling paper:paper_97804706_v_n_p1116_Bonelli2023-06-08T16:37:05Z Comparative Study on Char Properties and Pyrolysis Kinetics of Different Lignocellulosic Wastes Bonelli, Pablo R. Della Rocca, Patricia A. Cukierman, Ana Lea Aspidosperma australe Lignocellulosic wastes Populus deltoide Pyrolysis kinetics Thermogravimetric curves Activated carbon Activation energy Biofuels Carbon dioxide Cracking (chemical) Kinetic parameters Oilseeds Surface properties Thermogravimetric analysis Wastes Aspidosperma Lignocellulosic wastes Populus Pyrolysis kinetics Thermogravimetric curve Parameter estimation Chemical composition, heating values and surface properties of the char samples generated fkom slow pyrolysis of different abundant lignocellulosic wastes under identical operating conditions were examined to assess comparatively their suitability for potential use as biofuel andor for further processing to produce activated carbons. Sawdust from two different wood species (Aspidosperma australe, Populus deltoide), peanut husks, and olive stones were selected. Proximate and ultimate analyses as well as physical adsorption measurements of nitrogen and carbon dioxide were performed. Heating values were estimated from a multivariate correlation in terms of samples' elemental composition. All the chars obtained are found potentially useful as relatively pollution-free solid biofuels, the char arising from sawdust of Aspidosperma wood having the greatest potential. Comparison of surface properties with those determined for the olive stones-char, taken as a reference, suggests that the chars from peanut husks and from sawdust of Populus wood could be potential adequate candidates for further conversion into activated carbons. Kinetic measurements of the wastes pyrolysis were additionally conducted by non-isothermal thermogravimetry over the temperature range 25°C-9OO°C. Kinetic parameters were estimated by applying a published model, which assumes a steadily increasing variation in the activation energy with the course of pyrolysis and allows effective representation of experimental data for all the selected wastes over the whole range of temperatures. Appreciable differences in the estimated kinetic parameters are found. © 2001 by Blackwell Science Ltd. All rights reserved. Fil:Bonelli, P.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Della Rocca, P.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cukierman, A.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97804706_v_n_p1116_Bonelli http://hdl.handle.net/20.500.12110/paper_97804706_v_n_p1116_Bonelli
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Aspidosperma australe
Lignocellulosic wastes
Populus deltoide
Pyrolysis kinetics
Thermogravimetric curves
Activated carbon
Activation energy
Biofuels
Carbon dioxide
Cracking (chemical)
Kinetic parameters
Oilseeds
Surface properties
Thermogravimetric analysis
Wastes
Aspidosperma
Lignocellulosic wastes
Populus
Pyrolysis kinetics
Thermogravimetric curve
Parameter estimation
spellingShingle Aspidosperma australe
Lignocellulosic wastes
Populus deltoide
Pyrolysis kinetics
Thermogravimetric curves
Activated carbon
Activation energy
Biofuels
Carbon dioxide
Cracking (chemical)
Kinetic parameters
Oilseeds
Surface properties
Thermogravimetric analysis
Wastes
Aspidosperma
Lignocellulosic wastes
Populus
Pyrolysis kinetics
Thermogravimetric curve
Parameter estimation
Bonelli, Pablo R.
Della Rocca, Patricia A.
Cukierman, Ana Lea
Comparative Study on Char Properties and Pyrolysis Kinetics of Different Lignocellulosic Wastes
topic_facet Aspidosperma australe
Lignocellulosic wastes
Populus deltoide
Pyrolysis kinetics
Thermogravimetric curves
Activated carbon
Activation energy
Biofuels
Carbon dioxide
Cracking (chemical)
Kinetic parameters
Oilseeds
Surface properties
Thermogravimetric analysis
Wastes
Aspidosperma
Lignocellulosic wastes
Populus
Pyrolysis kinetics
Thermogravimetric curve
Parameter estimation
description Chemical composition, heating values and surface properties of the char samples generated fkom slow pyrolysis of different abundant lignocellulosic wastes under identical operating conditions were examined to assess comparatively their suitability for potential use as biofuel andor for further processing to produce activated carbons. Sawdust from two different wood species (Aspidosperma australe, Populus deltoide), peanut husks, and olive stones were selected. Proximate and ultimate analyses as well as physical adsorption measurements of nitrogen and carbon dioxide were performed. Heating values were estimated from a multivariate correlation in terms of samples' elemental composition. All the chars obtained are found potentially useful as relatively pollution-free solid biofuels, the char arising from sawdust of Aspidosperma wood having the greatest potential. Comparison of surface properties with those determined for the olive stones-char, taken as a reference, suggests that the chars from peanut husks and from sawdust of Populus wood could be potential adequate candidates for further conversion into activated carbons. Kinetic measurements of the wastes pyrolysis were additionally conducted by non-isothermal thermogravimetry over the temperature range 25°C-9OO°C. Kinetic parameters were estimated by applying a published model, which assumes a steadily increasing variation in the activation energy with the course of pyrolysis and allows effective representation of experimental data for all the selected wastes over the whole range of temperatures. Appreciable differences in the estimated kinetic parameters are found. © 2001 by Blackwell Science Ltd. All rights reserved.
author Bonelli, Pablo R.
Della Rocca, Patricia A.
Cukierman, Ana Lea
author_facet Bonelli, Pablo R.
Della Rocca, Patricia A.
Cukierman, Ana Lea
author_sort Bonelli, Pablo R.
title Comparative Study on Char Properties and Pyrolysis Kinetics of Different Lignocellulosic Wastes
title_short Comparative Study on Char Properties and Pyrolysis Kinetics of Different Lignocellulosic Wastes
title_full Comparative Study on Char Properties and Pyrolysis Kinetics of Different Lignocellulosic Wastes
title_fullStr Comparative Study on Char Properties and Pyrolysis Kinetics of Different Lignocellulosic Wastes
title_full_unstemmed Comparative Study on Char Properties and Pyrolysis Kinetics of Different Lignocellulosic Wastes
title_sort comparative study on char properties and pyrolysis kinetics of different lignocellulosic wastes
publishDate 2008
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97804706_v_n_p1116_Bonelli
http://hdl.handle.net/20.500.12110/paper_97804706_v_n_p1116_Bonelli
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AT cukiermananalea comparativestudyoncharpropertiesandpyrolysiskineticsofdifferentlignocellulosicwastes
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