Development of CuO-based oxygen carriers supported on diatomite and kaolin for chemical looping combustion
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/12831 |
Resumo: | Chemical Looping Combustion (CLC) technology has emerged as a promising alternative capable of restricting the effects of global warming due to anthropogenic gas emissions, especially CO2, through its inherent capture. This study aims to synthesize and evaluate Cu-based oxygen carriers supported on natural materials such as diatomite and kaolin, through the incipient wet impregnation method for CLC process applications. Oxygen carriers were characterized by X-ray diffraction (XRD), temperature-programmed reduction (TPR), and scanning electron microscopy with surface energy dispersive x-ray spectroscopy (SEM-EDS). The mechanical strength of the two oxygen carrier particles was determined after the sintering procedure resulting in high crushing force. Reactivity of oxygen carriers was evaluated in a thermobalance with CH4 and H2 gases. Different reaction pathways were attempted when undergoing the redox cycles: total direct reduction of CuO to Cu0 for Cu-K and partial reduction of CuO to Cu2O and CuO to Cu-D. However, the highest reactivity and reaction rate was achieved in Cu-D due to the pore structure of diatomite, the chemical composition and the resulting interaction between CuO and the support. H2 gas reactivity tests showed a higher conversion rate and greater stability between cycles for both oxygen carriers. Thus, the reducible CuO content present in Cu-Diatomite during the reactivity test with H2 as the fuel gas was ideal for achieving high solids conversion, tendency for greater stability and a higher reaction rate. |
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Development of CuO-based oxygen carriers supported on diatomite and kaolin for chemical looping combustionDesarrollo de transportadores de oxígeno a base de CuO soportado por diatomita y caolín para combustión por recirculación químicaDesenvolvimento de transportadores de oxigênio a base de CuO suportado em diatomita e caulim para combustão por recirculação químicaCaptura de CO2Combustão por recirculação químicaTransportadores de oxigênioCobreDiatomitaCaulim.CO2 captureChemical Looping CombustionOxygen CarriersCopperDiatomiteKaolin.Captura de CO2Combustión con transportadores sólidos de oxígenoTransportadores de oxigênioDiatomitaCaolín.Chemical Looping Combustion (CLC) technology has emerged as a promising alternative capable of restricting the effects of global warming due to anthropogenic gas emissions, especially CO2, through its inherent capture. This study aims to synthesize and evaluate Cu-based oxygen carriers supported on natural materials such as diatomite and kaolin, through the incipient wet impregnation method for CLC process applications. Oxygen carriers were characterized by X-ray diffraction (XRD), temperature-programmed reduction (TPR), and scanning electron microscopy with surface energy dispersive x-ray spectroscopy (SEM-EDS). The mechanical strength of the two oxygen carrier particles was determined after the sintering procedure resulting in high crushing force. Reactivity of oxygen carriers was evaluated in a thermobalance with CH4 and H2 gases. Different reaction pathways were attempted when undergoing the redox cycles: total direct reduction of CuO to Cu0 for Cu-K and partial reduction of CuO to Cu2O and CuO to Cu-D. However, the highest reactivity and reaction rate was achieved in Cu-D due to the pore structure of diatomite, the chemical composition and the resulting interaction between CuO and the support. H2 gas reactivity tests showed a higher conversion rate and greater stability between cycles for both oxygen carriers. Thus, the reducible CuO content present in Cu-Diatomite during the reactivity test with H2 as the fuel gas was ideal for achieving high solids conversion, tendency for greater stability and a higher reaction rate.La tecnología de combustión con transportadores sólidos de oxígeno (CLC) ha surgido como una alternativa prometedora capaz de restringir los efectos del calentamiento global por emisiones de gases antropogénicos, principalmente CO2, a través de su captura inherente. Este estudio tiene como objetivo sintetizar y evaluar transportadores de oxígeno basados en Cu apoyados en materiales naturales como la diatomita y el caolín, utilizando el incipiente método de impregnación húmeda para aplicaciones en procesos CLC. Los portadores de oxígeno se caracterizaron por difracción de rayos-X (XRD), reducción com temperatura programada (TPR) y microscopía electrónica de barrido con espectroscopía de energía superficial dispersiva de rayos-X (SEM-EDS). La resistencia mecánica de los portadores de oxígeno se determinó después del procedimiento de sinterización, lo que resultó en una alta fuerza de trituración. La reactividad de los portadores de oxígeno se evaluó en termobalance con los gases CH4 y H2. Se analizaron diferentes vías de reacción durante los ciclos redox: reducción total directa de CuO a Cu0 para Cu-K y reducción parcial de CuO a Cu2O y CuO para Cu-D. Sin embargo, la mayor reactividad y velocidad de reacción se logró para Cu-D debido a la estructura porosa de la diatomita, la composición química y la interacción resultante entre CuO y el soporte. Las pruebas de reactividad con gas H2 mostraron una mayor tasa de conversión y una mayor estabilidad entre ciclos para ambos transportadores de oxígeno. Así, el contenido reducible de CuO presente en Cu-D durante la prueba de reactividad con H2 como gas combustible fue ideal para obtener una alta conversión de sólidos, con tendencia a una mayor estabilidad y mayor velocidad de reacción.A tecnologia de Combustão com recirculação química (CLC) surgiu como uma alternativa promissora capaz de restringir os efeitos do aquecimento global devido às emissões de gases antropogênicos, principalmente CO2, por meio de sua captura inerente. Este estudo tem como objetivo sintetizar e avaliar carreadores de oxigênio à base de Cu suportados em materiais naturais como diatomita e caulim, através do método de impregnação úmida incipiente para aplicações em processos CLC. Os portadores de oxigênio foram caracterizados por difração de raios-X (XRD), redução à temperatura programada (TPR) e microscopia eletrônica de varredura com espectroscopia de energia de superfície dispersiva de raios-X (SEM-EDS). A resistência mecânica dos transportadoras de oxigênio foi determinada após o procedimento de sinterização, resultando em alta força de esmagamento. A reatividade dos carreadores de oxigênio foi avaliada em termobalança com os gases CH4 e H2. Diferentes vias de reação foram analisadas durante os ciclos redox: redução direta total de CuO para Cu0 para Cu-K e redução parcial de CuO para Cu2O e CuO para Cu-D. No entanto, a maior reatividade e taxa de reação foram alcançadas para o Cu-D devido à estrutura porosa da diatomita, à composição química e à interação resultante entre o CuO e o suporte. Os testes de reatividade com o gás H2 mostraram uma maior taxa de conversão e maior estabilidade entre os ciclos para ambos os transportadores de oxigênio. Assim, o teor de CuO redutível presente na Cu-D durante o teste de reatividade com H2 como gás combustível foi ideal para obtenção de alta conversão dos sólidos, tendência a maior estabilidade e maior taxa de reação.Research, Society and Development2021-04-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1283110.33448/rsd-v10i4.12831Research, Society and Development; Vol. 10 No. 4; e15110412831Research, Society and Development; Vol. 10 Núm. 4; e15110412831Research, Society and Development; v. 10 n. 4; e151104128312525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/12831/12518Copyright (c) 2021 Romário Cezar Pereira da Costa; Rebecca Araújo Barros do Nascimento ; Dulce Maria de Araújo Melo; Dener Silva Albuquerque; Rodolfo Luiz Bezerra de Araújo Medeiros; Marcus Antônio de Freitas Melo; Juan Adánezhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessCosta, Romário Cezar Pereira da Nascimento , Rebecca Araújo Barros do Melo, Dulce Maria de Araújo Albuquerque, Dener Silva Medeiros, Rodolfo Luiz Bezerra de Araújo Melo, Marcus Antônio de Freitas Adánez, Juan2021-04-25T11:21:26Zoai:ojs.pkp.sfu.ca:article/12831Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:34:18.612032Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Development of CuO-based oxygen carriers supported on diatomite and kaolin for chemical looping combustion Desarrollo de transportadores de oxígeno a base de CuO soportado por diatomita y caolín para combustión por recirculación química Desenvolvimento de transportadores de oxigênio a base de CuO suportado em diatomita e caulim para combustão por recirculação química |
title |
Development of CuO-based oxygen carriers supported on diatomite and kaolin for chemical looping combustion |
spellingShingle |
Development of CuO-based oxygen carriers supported on diatomite and kaolin for chemical looping combustion Costa, Romário Cezar Pereira da Captura de CO2 Combustão por recirculação química Transportadores de oxigênio Cobre Diatomita Caulim. CO2 capture Chemical Looping Combustion Oxygen Carriers Copper Diatomite Kaolin. Captura de CO2 Combustión con transportadores sólidos de oxígeno Transportadores de oxigênio Diatomita Caolín. |
title_short |
Development of CuO-based oxygen carriers supported on diatomite and kaolin for chemical looping combustion |
title_full |
Development of CuO-based oxygen carriers supported on diatomite and kaolin for chemical looping combustion |
title_fullStr |
Development of CuO-based oxygen carriers supported on diatomite and kaolin for chemical looping combustion |
title_full_unstemmed |
Development of CuO-based oxygen carriers supported on diatomite and kaolin for chemical looping combustion |
title_sort |
Development of CuO-based oxygen carriers supported on diatomite and kaolin for chemical looping combustion |
author |
Costa, Romário Cezar Pereira da |
author_facet |
Costa, Romário Cezar Pereira da Nascimento , Rebecca Araújo Barros do Melo, Dulce Maria de Araújo Albuquerque, Dener Silva Medeiros, Rodolfo Luiz Bezerra de Araújo Melo, Marcus Antônio de Freitas Adánez, Juan |
author_role |
author |
author2 |
Nascimento , Rebecca Araújo Barros do Melo, Dulce Maria de Araújo Albuquerque, Dener Silva Medeiros, Rodolfo Luiz Bezerra de Araújo Melo, Marcus Antônio de Freitas Adánez, Juan |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Costa, Romário Cezar Pereira da Nascimento , Rebecca Araújo Barros do Melo, Dulce Maria de Araújo Albuquerque, Dener Silva Medeiros, Rodolfo Luiz Bezerra de Araújo Melo, Marcus Antônio de Freitas Adánez, Juan |
dc.subject.por.fl_str_mv |
Captura de CO2 Combustão por recirculação química Transportadores de oxigênio Cobre Diatomita Caulim. CO2 capture Chemical Looping Combustion Oxygen Carriers Copper Diatomite Kaolin. Captura de CO2 Combustión con transportadores sólidos de oxígeno Transportadores de oxigênio Diatomita Caolín. |
topic |
Captura de CO2 Combustão por recirculação química Transportadores de oxigênio Cobre Diatomita Caulim. CO2 capture Chemical Looping Combustion Oxygen Carriers Copper Diatomite Kaolin. Captura de CO2 Combustión con transportadores sólidos de oxígeno Transportadores de oxigênio Diatomita Caolín. |
description |
Chemical Looping Combustion (CLC) technology has emerged as a promising alternative capable of restricting the effects of global warming due to anthropogenic gas emissions, especially CO2, through its inherent capture. This study aims to synthesize and evaluate Cu-based oxygen carriers supported on natural materials such as diatomite and kaolin, through the incipient wet impregnation method for CLC process applications. Oxygen carriers were characterized by X-ray diffraction (XRD), temperature-programmed reduction (TPR), and scanning electron microscopy with surface energy dispersive x-ray spectroscopy (SEM-EDS). The mechanical strength of the two oxygen carrier particles was determined after the sintering procedure resulting in high crushing force. Reactivity of oxygen carriers was evaluated in a thermobalance with CH4 and H2 gases. Different reaction pathways were attempted when undergoing the redox cycles: total direct reduction of CuO to Cu0 for Cu-K and partial reduction of CuO to Cu2O and CuO to Cu-D. However, the highest reactivity and reaction rate was achieved in Cu-D due to the pore structure of diatomite, the chemical composition and the resulting interaction between CuO and the support. H2 gas reactivity tests showed a higher conversion rate and greater stability between cycles for both oxygen carriers. Thus, the reducible CuO content present in Cu-Diatomite during the reactivity test with H2 as the fuel gas was ideal for achieving high solids conversion, tendency for greater stability and a higher reaction rate. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-04-03 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/12831 10.33448/rsd-v10i4.12831 |
url |
https://rsdjournal.org/index.php/rsd/article/view/12831 |
identifier_str_mv |
10.33448/rsd-v10i4.12831 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/12831/12518 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Research, Society and Development |
publisher.none.fl_str_mv |
Research, Society and Development |
dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 10 No. 4; e15110412831 Research, Society and Development; Vol. 10 Núm. 4; e15110412831 Research, Society and Development; v. 10 n. 4; e15110412831 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
instname_str |
Universidade Federal de Itajubá (UNIFEI) |
instacron_str |
UNIFEI |
institution |
UNIFEI |
reponame_str |
Research, Society and Development |
collection |
Research, Society and Development |
repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
repository.mail.fl_str_mv |
rsd.articles@gmail.com |
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1797052805748359168 |