Triacetin synthesis optimization using sulfated niobic acid catalyst

Detalhes bibliográficos
Autor(a) principal: Frade, João Vitor Madella
Data de Publicação: 2022
Outros Autores: Ferreira, Felipe Baião, Faria, Wagner Luís da Silva
Tipo de documento: Artigo
Idioma: por
Título da fonte: The Journal of Engineering and Exact Sciences
Texto Completo: https://periodicos.ufv.br/jcec/article/view/13584
Resumo: Glycerol is co-generated in many industrial processes, so it is necessary to seek new ways to reuse this compound. This work studied the acetylation of glycerol with acetic acid aiming the formation of acetines, applicable in several sectors in chemical industries. The reaction was carried out in a factorial planning 2³ with repetitions at the central point, with varying the temperature, molar ratio and catalyst percentage (sulfated niobic acid) as the input variables, and having as response variable and the response analyzed was the yield of triacetin, which indicates the extent of the reaction. It was seen verified that the temperature, the percentage of catalyst, and their interaction, between both are were significant variables for the result. The use of catalyst gave greater conversions and yield of triacetinHigher glycerol conversion, and triacetin yield were achieved with sulfated niobic acid than with the non-sulfated catalyst. The best yield results (~18%) were observed at the temperature of 110 ° C and with 0.5% by mass of catalyst.  
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spelling Triacetin synthesis optimization using sulfated niobic acid catalystOtimização da síntese de triacetina usando catalisador de ácido nióbico sulfatadoglycerol. acetic acid. sterification. factorial experimental design.glicerol. ácido acético. esterificação. planejamento experimental fatorial.Glycerol is co-generated in many industrial processes, so it is necessary to seek new ways to reuse this compound. This work studied the acetylation of glycerol with acetic acid aiming the formation of acetines, applicable in several sectors in chemical industries. The reaction was carried out in a factorial planning 2³ with repetitions at the central point, with varying the temperature, molar ratio and catalyst percentage (sulfated niobic acid) as the input variables, and having as response variable and the response analyzed was the yield of triacetin, which indicates the extent of the reaction. It was seen verified that the temperature, the percentage of catalyst, and their interaction, between both are were significant variables for the result. The use of catalyst gave greater conversions and yield of triacetinHigher glycerol conversion, and triacetin yield were achieved with sulfated niobic acid than with the non-sulfated catalyst. The best yield results (~18%) were observed at the temperature of 110 ° C and with 0.5% by mass of catalyst.  O glicerol é um subproduto gerado em diversos processos industriais sendo necessário, dessa forma, buscar novas formas de reaproveitar esse composto. Este trabalho estudou a acetilação do glicerol com ácido acético visando a formação de acetinas, utilizáveis em diversas aplicações na indústria química. A reação foi estudada utilizando um planejamento fatorial 2³ com repetições no ponto central, com a temperatura, razão molar e porcentagem de catalisador (ácido nióbico sulfatado) como variáveis de entrada, e tendo o rendimento de triacetina como variável resposta. Foi verificado que a temperatura, porcentagem de catalisador e a interação entre ambas são variáveis significativas para o resultado do processo. Maiores conversões de glicerol e rendimento de triacetina foram alcançadas com ácido nióbico sulfatado do que com o catalisador não sulfatado. Os melhores resultados de rendimento (~18 %) foram observados na temperatura de 110 °C e com 0,5 % em massa de catalisador.Universidade Federal de Viçosa - UFV2022-01-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufv.br/jcec/article/view/1358410.18540/jcecvl8iss1pp13584-01-14eThe Journal of Engineering and Exact Sciences; Vol. 8 No. 1 (2022); 13584-01-14eThe Journal of Engineering and Exact Sciences; Vol. 8 Núm. 1 (2022); 13584-01-14eThe Journal of Engineering and Exact Sciences; v. 8 n. 1 (2022); 13584-01-14e2527-1075reponame:The Journal of Engineering and Exact Sciencesinstname:Universidade Federal de Viçosa (UFV)instacron:UFVporhttps://periodicos.ufv.br/jcec/article/view/13584/7111Copyright (c) 2022 The Journal of Engineering and Exact Scienceshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessFrade, João Vitor MadellaFerreira, Felipe BaiãoFaria, Wagner Luís da Silva2022-01-30T13:19:07Zoai:ojs.periodicos.ufv.br:article/13584Revistahttp://www.seer.ufv.br/seer/rbeq2/index.php/req2/oai2527-10752527-1075opendoar:2022-01-30T13:19:07The Journal of Engineering and Exact Sciences - Universidade Federal de Viçosa (UFV)false
dc.title.none.fl_str_mv Triacetin synthesis optimization using sulfated niobic acid catalyst
Otimização da síntese de triacetina usando catalisador de ácido nióbico sulfatado
title Triacetin synthesis optimization using sulfated niobic acid catalyst
spellingShingle Triacetin synthesis optimization using sulfated niobic acid catalyst
Frade, João Vitor Madella
glycerol. acetic acid. sterification. factorial experimental design.
glicerol. ácido acético. esterificação. planejamento experimental fatorial.
title_short Triacetin synthesis optimization using sulfated niobic acid catalyst
title_full Triacetin synthesis optimization using sulfated niobic acid catalyst
title_fullStr Triacetin synthesis optimization using sulfated niobic acid catalyst
title_full_unstemmed Triacetin synthesis optimization using sulfated niobic acid catalyst
title_sort Triacetin synthesis optimization using sulfated niobic acid catalyst
author Frade, João Vitor Madella
author_facet Frade, João Vitor Madella
Ferreira, Felipe Baião
Faria, Wagner Luís da Silva
author_role author
author2 Ferreira, Felipe Baião
Faria, Wagner Luís da Silva
author2_role author
author
dc.contributor.author.fl_str_mv Frade, João Vitor Madella
Ferreira, Felipe Baião
Faria, Wagner Luís da Silva
dc.subject.por.fl_str_mv glycerol. acetic acid. sterification. factorial experimental design.
glicerol. ácido acético. esterificação. planejamento experimental fatorial.
topic glycerol. acetic acid. sterification. factorial experimental design.
glicerol. ácido acético. esterificação. planejamento experimental fatorial.
description Glycerol is co-generated in many industrial processes, so it is necessary to seek new ways to reuse this compound. This work studied the acetylation of glycerol with acetic acid aiming the formation of acetines, applicable in several sectors in chemical industries. The reaction was carried out in a factorial planning 2³ with repetitions at the central point, with varying the temperature, molar ratio and catalyst percentage (sulfated niobic acid) as the input variables, and having as response variable and the response analyzed was the yield of triacetin, which indicates the extent of the reaction. It was seen verified that the temperature, the percentage of catalyst, and their interaction, between both are were significant variables for the result. The use of catalyst gave greater conversions and yield of triacetinHigher glycerol conversion, and triacetin yield were achieved with sulfated niobic acid than with the non-sulfated catalyst. The best yield results (~18%) were observed at the temperature of 110 ° C and with 0.5% by mass of catalyst.  
publishDate 2022
dc.date.none.fl_str_mv 2022-01-12
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://periodicos.ufv.br/jcec/article/view/13584
10.18540/jcecvl8iss1pp13584-01-14e
url https://periodicos.ufv.br/jcec/article/view/13584
identifier_str_mv 10.18540/jcecvl8iss1pp13584-01-14e
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufv.br/jcec/article/view/13584/7111
dc.rights.driver.fl_str_mv Copyright (c) 2022 The Journal of Engineering and Exact Sciences
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2022 The Journal of Engineering and Exact Sciences
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 Universidade Federal de Viçosa - UFV
publisher.none.fl_str_mv Universidade Federal de Viçosa - UFV
dc.source.none.fl_str_mv The Journal of Engineering and Exact Sciences; Vol. 8 No. 1 (2022); 13584-01-14e
The Journal of Engineering and Exact Sciences; Vol. 8 Núm. 1 (2022); 13584-01-14e
The Journal of Engineering and Exact Sciences; v. 8 n. 1 (2022); 13584-01-14e
2527-1075
reponame:The Journal of Engineering and Exact Sciences
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str The Journal of Engineering and Exact Sciences
collection The Journal of Engineering and Exact Sciences
repository.name.fl_str_mv The Journal of Engineering and Exact Sciences - Universidade Federal de Viçosa (UFV)
repository.mail.fl_str_mv
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