Kinetic study of the energetic reuse from torrefied sewage sludge and urban pruning blends
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10973-018-7534-y http://hdl.handle.net/11449/185077 |
Resumo: | Disposal of solid waste demands a high cost and causes significant environmental impacts. However, this waste can be converted into fuels by thermochemical processes due to the high content of the volatile materials and can be reused to produce energy. This study evaluated the production of renewable energy from solid waste such sewage sludge, urban pruning, and a blend composed of 50% urban pruning and 50% sewage sludge, after subjecting the samples to a torrefaction at 260 degrees C. The experiments were carried out using approximately 7mg of each sample, under nitrogen atmosphere, at different heating rates (5, 10 and 20 degrees C min(-1)), and the temperature ranged from room temperature to 700 degrees C in simultaneous TG-DTA. For the determination of kinetic parameters, a local linear integral isoconversional method analogous to the Wanjun-Donghua method was used. From approximate and ultimate analysis, the higher heating values of the samples were determined. The results indicated that the blend presented a reduction in the moisture content (5.93-3.68%), 50% in volume and 31.8% in mass. Moreover, the sample became more hydrophobic because it incorporated 33.8% less humidity after torrefaction. The higher heating value increased from 20.36 to 32.15MJkg(-1). The kinetic study showed that the average activation energy of the blend (138kJmol(-1)) was lower than the individual samples due to the synergism effect between them. The blend is converted to renewable fuel, minimizing environmental impacts and giving a noble destiny to the waste. |
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Kinetic study of the energetic reuse from torrefied sewage sludge and urban pruning blendsRenewable energyEnergetic reuseWasteTorrefactionDisposal of solid waste demands a high cost and causes significant environmental impacts. However, this waste can be converted into fuels by thermochemical processes due to the high content of the volatile materials and can be reused to produce energy. This study evaluated the production of renewable energy from solid waste such sewage sludge, urban pruning, and a blend composed of 50% urban pruning and 50% sewage sludge, after subjecting the samples to a torrefaction at 260 degrees C. The experiments were carried out using approximately 7mg of each sample, under nitrogen atmosphere, at different heating rates (5, 10 and 20 degrees C min(-1)), and the temperature ranged from room temperature to 700 degrees C in simultaneous TG-DTA. For the determination of kinetic parameters, a local linear integral isoconversional method analogous to the Wanjun-Donghua method was used. From approximate and ultimate analysis, the higher heating values of the samples were determined. The results indicated that the blend presented a reduction in the moisture content (5.93-3.68%), 50% in volume and 31.8% in mass. Moreover, the sample became more hydrophobic because it incorporated 33.8% less humidity after torrefaction. The higher heating value increased from 20.36 to 32.15MJkg(-1). The kinetic study showed that the average activation energy of the blend (138kJmol(-1)) was lower than the individual samples due to the synergism effect between them. The blend is converted to renewable fuel, minimizing environmental impacts and giving a noble destiny to the waste.Sao Paulo State Univ, Dept Analyt Chem, Inst Chem, Rua Prof Francisco Degni 55, BR-14800060 Araraquara, SP, BrazilSao Paulo State Univ, Dept Analyt Chem, Inst Chem, Rua Prof Francisco Degni 55, BR-14800060 Araraquara, SP, BrazilSpringerUniversidade Estadual Paulista (Unesp)Nozela, W. C. [UNESP]Nozela, C. F. V. [UNESP]Silva, F. R. [UNESP]Dias, D. S. [UNESP]Almeida, S. [UNESP]Ribeiro, C. A. [UNESP]Crespi, M. S. [UNESP]2019-10-04T12:32:23Z2019-10-04T12:32:23Z2018-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1285-1291http://dx.doi.org/10.1007/s10973-018-7534-yJournal Of Thermal Analysis And Calorimetry. Dordrecht: Springer, v. 134, n. 2, p. 1285-1291, 2018.1388-6150http://hdl.handle.net/11449/18507710.1007/s10973-018-7534-yWOS:00045080100004384983108918100820000-0002-7984-5908Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal Of Thermal Analysis And Calorimetryinfo:eu-repo/semantics/openAccess2022-03-03T11:57:53Zoai:repositorio.unesp.br:11449/185077Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-03-03T11:57:53Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Kinetic study of the energetic reuse from torrefied sewage sludge and urban pruning blends |
title |
Kinetic study of the energetic reuse from torrefied sewage sludge and urban pruning blends |
spellingShingle |
Kinetic study of the energetic reuse from torrefied sewage sludge and urban pruning blends Nozela, W. C. [UNESP] Renewable energy Energetic reuse Waste Torrefaction |
title_short |
Kinetic study of the energetic reuse from torrefied sewage sludge and urban pruning blends |
title_full |
Kinetic study of the energetic reuse from torrefied sewage sludge and urban pruning blends |
title_fullStr |
Kinetic study of the energetic reuse from torrefied sewage sludge and urban pruning blends |
title_full_unstemmed |
Kinetic study of the energetic reuse from torrefied sewage sludge and urban pruning blends |
title_sort |
Kinetic study of the energetic reuse from torrefied sewage sludge and urban pruning blends |
author |
Nozela, W. C. [UNESP] |
author_facet |
Nozela, W. C. [UNESP] Nozela, C. F. V. [UNESP] Silva, F. R. [UNESP] Dias, D. S. [UNESP] Almeida, S. [UNESP] Ribeiro, C. A. [UNESP] Crespi, M. S. [UNESP] |
author_role |
author |
author2 |
Nozela, C. F. V. [UNESP] Silva, F. R. [UNESP] Dias, D. S. [UNESP] Almeida, S. [UNESP] Ribeiro, C. A. [UNESP] Crespi, M. S. [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Nozela, W. C. [UNESP] Nozela, C. F. V. [UNESP] Silva, F. R. [UNESP] Dias, D. S. [UNESP] Almeida, S. [UNESP] Ribeiro, C. A. [UNESP] Crespi, M. S. [UNESP] |
dc.subject.por.fl_str_mv |
Renewable energy Energetic reuse Waste Torrefaction |
topic |
Renewable energy Energetic reuse Waste Torrefaction |
description |
Disposal of solid waste demands a high cost and causes significant environmental impacts. However, this waste can be converted into fuels by thermochemical processes due to the high content of the volatile materials and can be reused to produce energy. This study evaluated the production of renewable energy from solid waste such sewage sludge, urban pruning, and a blend composed of 50% urban pruning and 50% sewage sludge, after subjecting the samples to a torrefaction at 260 degrees C. The experiments were carried out using approximately 7mg of each sample, under nitrogen atmosphere, at different heating rates (5, 10 and 20 degrees C min(-1)), and the temperature ranged from room temperature to 700 degrees C in simultaneous TG-DTA. For the determination of kinetic parameters, a local linear integral isoconversional method analogous to the Wanjun-Donghua method was used. From approximate and ultimate analysis, the higher heating values of the samples were determined. The results indicated that the blend presented a reduction in the moisture content (5.93-3.68%), 50% in volume and 31.8% in mass. Moreover, the sample became more hydrophobic because it incorporated 33.8% less humidity after torrefaction. The higher heating value increased from 20.36 to 32.15MJkg(-1). The kinetic study showed that the average activation energy of the blend (138kJmol(-1)) was lower than the individual samples due to the synergism effect between them. The blend is converted to renewable fuel, minimizing environmental impacts and giving a noble destiny to the waste. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-01 2019-10-04T12:32:23Z 2019-10-04T12:32:23Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s10973-018-7534-y Journal Of Thermal Analysis And Calorimetry. Dordrecht: Springer, v. 134, n. 2, p. 1285-1291, 2018. 1388-6150 http://hdl.handle.net/11449/185077 10.1007/s10973-018-7534-y WOS:000450801000043 8498310891810082 0000-0002-7984-5908 |
url |
http://dx.doi.org/10.1007/s10973-018-7534-y http://hdl.handle.net/11449/185077 |
identifier_str_mv |
Journal Of Thermal Analysis And Calorimetry. Dordrecht: Springer, v. 134, n. 2, p. 1285-1291, 2018. 1388-6150 10.1007/s10973-018-7534-y WOS:000450801000043 8498310891810082 0000-0002-7984-5908 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal Of Thermal Analysis And Calorimetry |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1285-1291 |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1797790082037448704 |