Modeling of syngas composition obtained from fluidized bed gasifiers using Kuhn–Tucker multipliers
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/10.1016/j.energy.2018.03.141 http://hdl.handle.net/11449/179889 |
Resumo: | This work aims to develop a modified chemical equilibrium model to accurately determine the syngas (synthesis gas) composition obtained from fluidized bed gasifiers. In order to do so, an optimization method was applied to determine the correction factors which modify the chemical equilibrium constants, the carbon conversion efficiency and the enthalpy of reaction. The gasification agents considered for this study were: air, steam, air–steam, and air–steam–oxygen. The optimization method used the Kuhn–Tucker multipliers to obtain small RMS errors. A total of 76 experimental compositions of syngas were selected. Among these data 60 were used to obtain correlations for the correction factor, the carbon conversion efficiency and the enthalpy of reaction. Then, a modified chemical equilibrium model was formulated by a taking advantage of these correlations. The modified chemical equilibrium model was validated showing very good accuracy for the determination of the syngas composition, the RMS error were found to be between 0.94 and 4.84. |
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Repositório Institucional da UNESP |
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spelling |
Modeling of syngas composition obtained from fluidized bed gasifiers using Kuhn–Tucker multipliersFluidized bedGasificationModified chemical equilibrium modelThis work aims to develop a modified chemical equilibrium model to accurately determine the syngas (synthesis gas) composition obtained from fluidized bed gasifiers. In order to do so, an optimization method was applied to determine the correction factors which modify the chemical equilibrium constants, the carbon conversion efficiency and the enthalpy of reaction. The gasification agents considered for this study were: air, steam, air–steam, and air–steam–oxygen. The optimization method used the Kuhn–Tucker multipliers to obtain small RMS errors. A total of 76 experimental compositions of syngas were selected. Among these data 60 were used to obtain correlations for the correction factor, the carbon conversion efficiency and the enthalpy of reaction. Then, a modified chemical equilibrium model was formulated by a taking advantage of these correlations. The modified chemical equilibrium model was validated showing very good accuracy for the determination of the syngas composition, the RMS error were found to be between 0.94 and 4.84.São Paulo University (UNESP) School of Engineering Energy DepartmentSão Paulo University (UNESP) School of Engineering Energy DepartmentUniversidade Estadual Paulista (Unesp)Amaro, Jordan [UNESP]Mendiburu, Andrés Z. [UNESP]Ávila, Ivonete [UNESP]2018-12-11T17:37:10Z2018-12-11T17:37:10Z2018-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article371-382application/pdfhttp://dx.doi.org/10.1016/j.energy.2018.03.141Energy, v. 152, p. 371-382.0360-5442http://hdl.handle.net/11449/17988910.1016/j.energy.2018.03.1412-s2.0-850474532842-s2.0-85047453284.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEnergy1,990info:eu-repo/semantics/openAccess2024-01-16T06:25:08Zoai:repositorio.unesp.br:11449/179889Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-01-16T06:25:08Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Modeling of syngas composition obtained from fluidized bed gasifiers using Kuhn–Tucker multipliers |
title |
Modeling of syngas composition obtained from fluidized bed gasifiers using Kuhn–Tucker multipliers |
spellingShingle |
Modeling of syngas composition obtained from fluidized bed gasifiers using Kuhn–Tucker multipliers Amaro, Jordan [UNESP] Fluidized bed Gasification Modified chemical equilibrium model |
title_short |
Modeling of syngas composition obtained from fluidized bed gasifiers using Kuhn–Tucker multipliers |
title_full |
Modeling of syngas composition obtained from fluidized bed gasifiers using Kuhn–Tucker multipliers |
title_fullStr |
Modeling of syngas composition obtained from fluidized bed gasifiers using Kuhn–Tucker multipliers |
title_full_unstemmed |
Modeling of syngas composition obtained from fluidized bed gasifiers using Kuhn–Tucker multipliers |
title_sort |
Modeling of syngas composition obtained from fluidized bed gasifiers using Kuhn–Tucker multipliers |
author |
Amaro, Jordan [UNESP] |
author_facet |
Amaro, Jordan [UNESP] Mendiburu, Andrés Z. [UNESP] Ávila, Ivonete [UNESP] |
author_role |
author |
author2 |
Mendiburu, Andrés Z. [UNESP] Ávila, Ivonete [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Amaro, Jordan [UNESP] Mendiburu, Andrés Z. [UNESP] Ávila, Ivonete [UNESP] |
dc.subject.por.fl_str_mv |
Fluidized bed Gasification Modified chemical equilibrium model |
topic |
Fluidized bed Gasification Modified chemical equilibrium model |
description |
This work aims to develop a modified chemical equilibrium model to accurately determine the syngas (synthesis gas) composition obtained from fluidized bed gasifiers. In order to do so, an optimization method was applied to determine the correction factors which modify the chemical equilibrium constants, the carbon conversion efficiency and the enthalpy of reaction. The gasification agents considered for this study were: air, steam, air–steam, and air–steam–oxygen. The optimization method used the Kuhn–Tucker multipliers to obtain small RMS errors. A total of 76 experimental compositions of syngas were selected. Among these data 60 were used to obtain correlations for the correction factor, the carbon conversion efficiency and the enthalpy of reaction. Then, a modified chemical equilibrium model was formulated by a taking advantage of these correlations. The modified chemical equilibrium model was validated showing very good accuracy for the determination of the syngas composition, the RMS error were found to be between 0.94 and 4.84. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-11T17:37:10Z 2018-12-11T17:37:10Z 2018-06-01 |
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/10.1016/j.energy.2018.03.141 Energy, v. 152, p. 371-382. 0360-5442 http://hdl.handle.net/11449/179889 10.1016/j.energy.2018.03.141 2-s2.0-85047453284 2-s2.0-85047453284.pdf |
url |
http://dx.doi.org/10.1016/j.energy.2018.03.141 http://hdl.handle.net/11449/179889 |
identifier_str_mv |
Energy, v. 152, p. 371-382. 0360-5442 10.1016/j.energy.2018.03.141 2-s2.0-85047453284 2-s2.0-85047453284.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Energy 1,990 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
371-382 application/pdf |
dc.source.none.fl_str_mv |
Scopus 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_ |
1803047344396042240 |