Production of activated carbon from malt bagasse with chemical activation using different activating agents
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/33766 |
Resumo: | Brazil is the third largest beer producer in the world, reaching approximately 14 billion liters per year. If, on the one hand, the expansion of the brewing sector in the country produces a significant increase in the Brazilian GDP, it also causes environmental impacts inherent to the process, since different residues are produced during production and the main one is malt bagasse. This work aimed to investigate the use of malt bagasse through the production of coal via hydrothermal synthesis with subsequent chemical activation by pyrolysis. First, the parameters time (4, 14 and 24h) and temperature (150, 175, 225 and 250 ºC) of hydrothermal carbonization were evaluated, having as a response the efficiency of removal of methylene blue dye in aqueous solution. Subsequently, three activating agents (KOH, H3PO4 and ZnCl2) were used in two mass proportions (1:1 and 2:1) for the production of activated carbons. The different conditions were evaluated in terms of surface area (SBET) and adsorption efficiency. Chemical activation was able to increase the surface area of the carbons by approximately 200 times. Activated carbon with KOH showed better performance in removing the dye, reaching an efficiency of 95.39% under the conditions submitted. The increase in the proportion of activating agent led to greater adsorption efficiencies, as it increased the surface area of activated carbons. All coals showed a predominance of mesopores, confirmed by N2 adsorption and desorption isotherms and pore size distribution. |
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Production of activated carbon from malt bagasse with chemical activation using different activating agentsProducción de carbón activado a partir de bagazo de malta con activación química utilizando diferentes activantesProdução de carvão ativado a partir de bagaço de malte com ativação química utilizando diferentes agentes ativanteHydrothermal carbonizationAdsorptionActivated carbonWasteDyes.Carbonización hidrotermalAdsorciónCarbón activadoDesperdicioTintes.Carbonização hidrotérmicaAdsorçãoCarvão ativadoResíduosCorantes.Brazil is the third largest beer producer in the world, reaching approximately 14 billion liters per year. If, on the one hand, the expansion of the brewing sector in the country produces a significant increase in the Brazilian GDP, it also causes environmental impacts inherent to the process, since different residues are produced during production and the main one is malt bagasse. This work aimed to investigate the use of malt bagasse through the production of coal via hydrothermal synthesis with subsequent chemical activation by pyrolysis. First, the parameters time (4, 14 and 24h) and temperature (150, 175, 225 and 250 ºC) of hydrothermal carbonization were evaluated, having as a response the efficiency of removal of methylene blue dye in aqueous solution. Subsequently, three activating agents (KOH, H3PO4 and ZnCl2) were used in two mass proportions (1:1 and 2:1) for the production of activated carbons. The different conditions were evaluated in terms of surface area (SBET) and adsorption efficiency. Chemical activation was able to increase the surface area of the carbons by approximately 200 times. Activated carbon with KOH showed better performance in removing the dye, reaching an efficiency of 95.39% under the conditions submitted. The increase in the proportion of activating agent led to greater adsorption efficiencies, as it increased the surface area of activated carbons. All coals showed a predominance of mesopores, confirmed by N2 adsorption and desorption isotherms and pore size distribution.Brasil es el tercer mayor productor de cerveza del mundo, alcanzando aproximadamente 14 mil millones de litros por año. Si, por un lado, la expansión del sector cervecero en el país produce un aumento significativo en el PIB brasileño, también provoca impactos ambientales inherentes al proceso, ya que se producen diferentes residuos durante la producción y el principal es el bagazo de malta. Este trabajo tuvo como objetivo investigar el aprovechamiento del bagazo de malta a través de la producción de carbón mediante síntesis hidrotermal con posterior activación química por pirólisis. En primer lugar, se evaluaron los parámetros tiempo (4, 14 y 24 h) y temperatura (150, 175, 225 y 250 ºC) de carbonización hidrotermal, teniendo como respuesta la eficiencia de remoción del colorante azul de metileno en solución acuosa. Posteriormente, se utilizaron tres agentes activadores (KOH, H3PO4 y ZnCl2) en dos proporciones másicas (1:1 y 2:1) para la producción de carbones activados. Las diferentes condiciones se evaluaron en términos de área superficial (SBET) y eficiencia de adsorción. La activación química pudo aumentar el área superficial de los carbones en aproximadamente 200 veces. El carbón activado con KOH mostró un mejor desempeño en la remoción del colorante, alcanzando una eficiencia del 95,39% en las condiciones presentadas. El aumento de la proporción de agente activador condujo a mayores eficiencias de adsorción, ya que aumentó el área superficial de los carbones activados. Todos los carbones mostraron un predominio de mesoporos, confirmado por las isotermas de adsorción y desorción de N2 y la distribución del tamaño de los poros.O Brasil é o terceiro maior produtor de cerveja no mundo, alcançando aproximadamente 14 bilhões de litros por ano. Se por um lado a expansão do setor cervejeiro no país produz um incremento significativo no PIB brasileiro, também ocasiona impactos ambientais inerentes ao processo, visto que são produzidos diferentes resíduos durante a produção e o principal deles é o bagaço do malte. Esse trabalho teve como objetivo em investigar o aproveitamento do bagaço de malte por meio da produção de carvão via síntese hidrotérmica com posterior ativação química por pirólise. Primeiramente, avaliou-se os parâmetros tempo (4, 14 e 24h) e temperatura (150, 175, 225 e 250 ºC) da carbonização hidrotérmica, tendo como resposta a eficiência de remoção do corante azul de metileno em solução aquosa. Posteriormente, utilizou-se três agentes ativantes (KOH, H3PO4 e ZnCl2) em duas proporções mássicas (1:1 e 2:1) para produção dos carvões ativados. As diferentes condições foram avaliadas em termos de área superficial (SBET) e eficiência de adsorção. A ativação química foi capaz de aumentar a área superficial dos carvões em aproximadamente 200 vezes. O carvão ativado com KOH apresentou melhor desempenho na remoção do corante, alcançando uma eficiência de 95,39% nas condições submetidas. O aumento na proporção do agente ativante levou a maiores eficiências na adsorção, visto que aumentou a área superficial dos carvões ativados. Todos os carvões apresentaram predominância de mesoporos, confirmada pelas isotermas de adsorção e dessorção de N2 e pela distribuição de tamanho dos poros.Research, Society and Development2022-08-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/3376610.33448/rsd-v11i11.33766Research, Society and Development; Vol. 11 No. 11; e324111133766Research, Society and Development; Vol. 11 Núm. 11; e324111133766Research, Society and Development; v. 11 n. 11; e3241111337662525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/33766/28479Copyright (c) 2022 Mariana Carvalho Barbosa; Fernanda Pereira da Silva Araújo; Angélica Priscila Santos Alves; Ana Luisa Gonçalves Mendes; Rita de Cássia Superbi Sousa; Wagner Luís da Silva Faria; Abraham Damian Giraldo Zunigahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessBarbosa, Mariana Carvalho Araújo, Fernanda Pereira da Silva Alves, Angélica Priscila Santos Mendes, Ana Luisa Gonçalves Sousa, Rita de Cássia Superbi Faria, Wagner Luís da Silva Zuniga, Abraham Damian Giraldo 2022-09-05T13:24:46Zoai:ojs.pkp.sfu.ca:article/33766Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:49:19.409945Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Production of activated carbon from malt bagasse with chemical activation using different activating agents Producción de carbón activado a partir de bagazo de malta con activación química utilizando diferentes activantes Produção de carvão ativado a partir de bagaço de malte com ativação química utilizando diferentes agentes ativante |
title |
Production of activated carbon from malt bagasse with chemical activation using different activating agents |
spellingShingle |
Production of activated carbon from malt bagasse with chemical activation using different activating agents Barbosa, Mariana Carvalho Hydrothermal carbonization Adsorption Activated carbon Waste Dyes. Carbonización hidrotermal Adsorción Carbón activado Desperdicio Tintes. Carbonização hidrotérmica Adsorção Carvão ativado Resíduos Corantes. |
title_short |
Production of activated carbon from malt bagasse with chemical activation using different activating agents |
title_full |
Production of activated carbon from malt bagasse with chemical activation using different activating agents |
title_fullStr |
Production of activated carbon from malt bagasse with chemical activation using different activating agents |
title_full_unstemmed |
Production of activated carbon from malt bagasse with chemical activation using different activating agents |
title_sort |
Production of activated carbon from malt bagasse with chemical activation using different activating agents |
author |
Barbosa, Mariana Carvalho |
author_facet |
Barbosa, Mariana Carvalho Araújo, Fernanda Pereira da Silva Alves, Angélica Priscila Santos Mendes, Ana Luisa Gonçalves Sousa, Rita de Cássia Superbi Faria, Wagner Luís da Silva Zuniga, Abraham Damian Giraldo |
author_role |
author |
author2 |
Araújo, Fernanda Pereira da Silva Alves, Angélica Priscila Santos Mendes, Ana Luisa Gonçalves Sousa, Rita de Cássia Superbi Faria, Wagner Luís da Silva Zuniga, Abraham Damian Giraldo |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Barbosa, Mariana Carvalho Araújo, Fernanda Pereira da Silva Alves, Angélica Priscila Santos Mendes, Ana Luisa Gonçalves Sousa, Rita de Cássia Superbi Faria, Wagner Luís da Silva Zuniga, Abraham Damian Giraldo |
dc.subject.por.fl_str_mv |
Hydrothermal carbonization Adsorption Activated carbon Waste Dyes. Carbonización hidrotermal Adsorción Carbón activado Desperdicio Tintes. Carbonização hidrotérmica Adsorção Carvão ativado Resíduos Corantes. |
topic |
Hydrothermal carbonization Adsorption Activated carbon Waste Dyes. Carbonización hidrotermal Adsorción Carbón activado Desperdicio Tintes. Carbonização hidrotérmica Adsorção Carvão ativado Resíduos Corantes. |
description |
Brazil is the third largest beer producer in the world, reaching approximately 14 billion liters per year. If, on the one hand, the expansion of the brewing sector in the country produces a significant increase in the Brazilian GDP, it also causes environmental impacts inherent to the process, since different residues are produced during production and the main one is malt bagasse. This work aimed to investigate the use of malt bagasse through the production of coal via hydrothermal synthesis with subsequent chemical activation by pyrolysis. First, the parameters time (4, 14 and 24h) and temperature (150, 175, 225 and 250 ºC) of hydrothermal carbonization were evaluated, having as a response the efficiency of removal of methylene blue dye in aqueous solution. Subsequently, three activating agents (KOH, H3PO4 and ZnCl2) were used in two mass proportions (1:1 and 2:1) for the production of activated carbons. The different conditions were evaluated in terms of surface area (SBET) and adsorption efficiency. Chemical activation was able to increase the surface area of the carbons by approximately 200 times. Activated carbon with KOH showed better performance in removing the dye, reaching an efficiency of 95.39% under the conditions submitted. The increase in the proportion of activating agent led to greater adsorption efficiencies, as it increased the surface area of activated carbons. All coals showed a predominance of mesopores, confirmed by N2 adsorption and desorption isotherms and pore size distribution. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-08-24 |
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/33766 10.33448/rsd-v11i11.33766 |
url |
https://rsdjournal.org/index.php/rsd/article/view/33766 |
identifier_str_mv |
10.33448/rsd-v11i11.33766 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/33766/28479 |
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. 11 No. 11; e324111133766 Research, Society and Development; Vol. 11 Núm. 11; e324111133766 Research, Society and Development; v. 11 n. 11; e324111133766 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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1797052827432910848 |