Microwave effects in the dilute acid hydrolysis of cellulose to 5-hydroxymethylfurfural

Abstract In this study, the effect of microwaves on the production of 5-hydroxymethylfurfural (HMF) in a biphasic system was evaluated via a kinetic analysis. The reaction system consisted of an acidified aqueous phase and methyl isobutyl ketone (MIBK) as an organic phase, in which HMF is extracted...

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Autores principales:	Nick Sweygers, Niels Alewaters, Raf Dewil, Lise Appels
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/57791922920247819e2e102a6757d74c
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spelling	oai:doaj.org-article:57791922920247819e2e102a6757d74c2021-12-02T15:08:53ZMicrowave effects in the dilute acid hydrolysis of cellulose to 5-hydroxymethylfurfural10.1038/s41598-018-26107-y2045-2322https://doaj.org/article/57791922920247819e2e102a6757d74c2018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-26107-yhttps://doaj.org/toc/2045-2322Abstract In this study, the effect of microwaves on the production of 5-hydroxymethylfurfural (HMF) in a biphasic system was evaluated via a kinetic analysis. The reaction system consisted of an acidified aqueous phase and methyl isobutyl ketone (MIBK) as an organic phase, in which HMF is extracted directly upon formation during the reaction. Two identically shaped reactors were used to assess the influence of microwaves on the production of HMF. A borosilicate glass reactor was used to heat the reaction mixture via microwaves directly, whereas the silicon carbide (SiC) wall of the second reactor absorbed all microwaves and hence the reactor content was heated via convective heat transfer. An identical temperature profile was imposed on both reactors. Cellulose, glucose and fructose were chosen as feedstocks for the conversion to HMF. It was observed that microwaves have a significant effect on the reactions. The hydrolysis of cellulose to glucose was a 2.3 folds faster in the presence of microwaves at the process conditions (0.046 M HCl, 177 °C). The isomerization of glucose to fructose showed a similar increase (factor 2.5). The required energy input for the reaction was systematically higher for the SiC reactor.Nick SweygersNiels AlewatersRaf DewilLise AppelsNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Nick Sweygers Niels Alewaters Raf Dewil Lise Appels Microwave effects in the dilute acid hydrolysis of cellulose to 5-hydroxymethylfurfural
description	Abstract In this study, the effect of microwaves on the production of 5-hydroxymethylfurfural (HMF) in a biphasic system was evaluated via a kinetic analysis. The reaction system consisted of an acidified aqueous phase and methyl isobutyl ketone (MIBK) as an organic phase, in which HMF is extracted directly upon formation during the reaction. Two identically shaped reactors were used to assess the influence of microwaves on the production of HMF. A borosilicate glass reactor was used to heat the reaction mixture via microwaves directly, whereas the silicon carbide (SiC) wall of the second reactor absorbed all microwaves and hence the reactor content was heated via convective heat transfer. An identical temperature profile was imposed on both reactors. Cellulose, glucose and fructose were chosen as feedstocks for the conversion to HMF. It was observed that microwaves have a significant effect on the reactions. The hydrolysis of cellulose to glucose was a 2.3 folds faster in the presence of microwaves at the process conditions (0.046 M HCl, 177 °C). The isomerization of glucose to fructose showed a similar increase (factor 2.5). The required energy input for the reaction was systematically higher for the SiC reactor.
format	article
author	Nick Sweygers Niels Alewaters Raf Dewil Lise Appels
author_facet	Nick Sweygers Niels Alewaters Raf Dewil Lise Appels
author_sort	Nick Sweygers
title	Microwave effects in the dilute acid hydrolysis of cellulose to 5-hydroxymethylfurfural
title_short	Microwave effects in the dilute acid hydrolysis of cellulose to 5-hydroxymethylfurfural
title_full	Microwave effects in the dilute acid hydrolysis of cellulose to 5-hydroxymethylfurfural
title_fullStr	Microwave effects in the dilute acid hydrolysis of cellulose to 5-hydroxymethylfurfural
title_full_unstemmed	Microwave effects in the dilute acid hydrolysis of cellulose to 5-hydroxymethylfurfural
title_sort	microwave effects in the dilute acid hydrolysis of cellulose to 5-hydroxymethylfurfural
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/57791922920247819e2e102a6757d74c
work_keys_str_mv	AT nicksweygers microwaveeffectsinthediluteacidhydrolysisofcelluloseto5hydroxymethylfurfural AT nielsalewaters microwaveeffectsinthediluteacidhydrolysisofcelluloseto5hydroxymethylfurfural AT rafdewil microwaveeffectsinthediluteacidhydrolysisofcelluloseto5hydroxymethylfurfural AT liseappels microwaveeffectsinthediluteacidhydrolysisofcelluloseto5hydroxymethylfurfural
_version_	1718387998874140672

Microwave effects in the dilute acid hydrolysis of cellulose to 5-hydroxymethylfurfural

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