Slow pyrolysis of nutshells: Characterization of derived chars and of process kinetics
Char samples were obtained from slow pyrolysis of hazelnut and peanut shells at different temperatures (623 K, 873 K, and 1123 K). Composition, heating values, and surface properties of the charcoals were analyzed to explore their potentiality as bio-fuels and/or for further conversion into activate...
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| Formato: | JOUR |
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00908312_v25_n8_p767_Bonelli |
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todo:paper_00908312_v25_n8_p767_Bonelli2023-10-03T14:54:52Z Slow pyrolysis of nutshells: Characterization of derived chars and of process kinetics Bonelli, P.R. Cerrella, E.G. Cukierman, A.L. Biomass residues Char properties Nutshells pyrolysis Pyrolysis kinetics Activated carbon Activation energy Biomass Greenhouse effect Pyrolysis Reaction kinetics Temperature Thermogravimetric analysis Chars Hazelnuts Nonisothermal thermogravimetric measurements Nutshells Peanut shells Agricultural wastes Char samples were obtained from slow pyrolysis of hazelnut and peanut shells at different temperatures (623 K, 873 K, and 1123 K). Composition, heating values, and surface properties of the charcoals were analyzed to explore their potentiality as bio-fuels and/or for further conversion into activated carbons. The chars generated from both wastes at 873 K exhibited good properties for these purposes, although the hazelnut shell-derived char showed a relatively greater potential. Furthermore, kinetics of the shell's pyrolysis over the temperature range 300 to 1200 K was characterized from nonisothermal thermogravimetric measurements by applying a model that assumes a steadily increasing variation in the activation energy with the process course. It allowed for a satisfactory description of kinetic data for the pyrolysis of hazelnut and peanut shells over the whole range of temperatures examined. Differences in the estimated kinetic parameters characterizing the wastes were found. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00908312_v25_n8_p767_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 |
Biomass residues Char properties Nutshells pyrolysis Pyrolysis kinetics Activated carbon Activation energy Biomass Greenhouse effect Pyrolysis Reaction kinetics Temperature Thermogravimetric analysis Chars Hazelnuts Nonisothermal thermogravimetric measurements Nutshells Peanut shells Agricultural wastes |
| spellingShingle |
Biomass residues Char properties Nutshells pyrolysis Pyrolysis kinetics Activated carbon Activation energy Biomass Greenhouse effect Pyrolysis Reaction kinetics Temperature Thermogravimetric analysis Chars Hazelnuts Nonisothermal thermogravimetric measurements Nutshells Peanut shells Agricultural wastes Bonelli, P.R. Cerrella, E.G. Cukierman, A.L. Slow pyrolysis of nutshells: Characterization of derived chars and of process kinetics |
| topic_facet |
Biomass residues Char properties Nutshells pyrolysis Pyrolysis kinetics Activated carbon Activation energy Biomass Greenhouse effect Pyrolysis Reaction kinetics Temperature Thermogravimetric analysis Chars Hazelnuts Nonisothermal thermogravimetric measurements Nutshells Peanut shells Agricultural wastes |
| description |
Char samples were obtained from slow pyrolysis of hazelnut and peanut shells at different temperatures (623 K, 873 K, and 1123 K). Composition, heating values, and surface properties of the charcoals were analyzed to explore their potentiality as bio-fuels and/or for further conversion into activated carbons. The chars generated from both wastes at 873 K exhibited good properties for these purposes, although the hazelnut shell-derived char showed a relatively greater potential. Furthermore, kinetics of the shell's pyrolysis over the temperature range 300 to 1200 K was characterized from nonisothermal thermogravimetric measurements by applying a model that assumes a steadily increasing variation in the activation energy with the process course. It allowed for a satisfactory description of kinetic data for the pyrolysis of hazelnut and peanut shells over the whole range of temperatures examined. Differences in the estimated kinetic parameters characterizing the wastes were found. |
| format |
JOUR |
| author |
Bonelli, P.R. Cerrella, E.G. Cukierman, A.L. |
| author_facet |
Bonelli, P.R. Cerrella, E.G. Cukierman, A.L. |
| author_sort |
Bonelli, P.R. |
| title |
Slow pyrolysis of nutshells: Characterization of derived chars and of process kinetics |
| title_short |
Slow pyrolysis of nutshells: Characterization of derived chars and of process kinetics |
| title_full |
Slow pyrolysis of nutshells: Characterization of derived chars and of process kinetics |
| title_fullStr |
Slow pyrolysis of nutshells: Characterization of derived chars and of process kinetics |
| title_full_unstemmed |
Slow pyrolysis of nutshells: Characterization of derived chars and of process kinetics |
| title_sort |
slow pyrolysis of nutshells: characterization of derived chars and of process kinetics |
| url |
http://hdl.handle.net/20.500.12110/paper_00908312_v25_n8_p767_Bonelli |
| work_keys_str_mv |
AT bonellipr slowpyrolysisofnutshellscharacterizationofderivedcharsandofprocesskinetics AT cerrellaeg slowpyrolysisofnutshellscharacterizationofderivedcharsandofprocesskinetics AT cukiermanal slowpyrolysisofnutshellscharacterizationofderivedcharsandofprocesskinetics |
| _version_ |
1807318109563912192 |