dc.contributor.author |
di Bitonto, Luigi |
|
dc.contributor.author |
Scelsi, Enrico |
|
dc.contributor.author |
Reynel-Ávila, Hilda Elizabeth |
|
dc.contributor.author |
Mendoza-Castillo, Didilia Ileana |
|
dc.contributor.author |
Bonilla-Petriciolet, Adrián |
|
dc.contributor.author |
Hájek, Martin |
|
dc.contributor.author |
Mustafa, Ahmad |
|
dc.contributor.author |
Pastore, Carlo |
|
dc.date.accessioned |
2024-04-01T10:11:01Z |
|
dc.date.available |
2024-04-01T10:11:01Z |
|
dc.date.issued |
2024-03 |
|
dc.identifier.other |
https://doi.org/10.3390/catal14030185 |
|
dc.identifier.uri |
http://repository.msa.edu.eg/xmlui/handle/123456789/5916 |
|
dc.description.abstract |
In this work, a closed-loop strategy for the management and valorization of winery
waste was proposed. The exhausted pomace and grape stalks that are typically obtained from
white wine industries were used as a source of simple sugars, namely, glucose and fructose, and of
lignocellulosic feedstock for the preparation of selective catalysts for the 5-hydroxymethylfurfural
(5-HMF) production from fructose. A novel synthetic procedure was developed for the synthesis
of iron-sulfonated magnetic biochar catalysts (Fe-SMBCs). Fourier transform infrared spectroscopy
(FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX),
BET surface area, porous structure analysis and determination of total amount of acid sites were
performed in order to characterize the physico-chemical properties of the synthesized systems. Then,
these heterogeneous catalysts were successfully tested via the dehydration of simple sugars into
5-HMF by using methyl isobutyl ketone (MIBK) and gamma valerolactone (GVL) as co-solvents.
The optimum 5-HMF yield of 40.9 ± 1.1%mol with a selectivity of 59.8 ± 2.6%mol was achieved by
adopting the following optimized conditions: 0.1 g of catalyst, volume ratio of GVL to H2O = 2 to 1,
403 K, 6 h. In addition, the catalyst was easily recycled using an external magnetic field and used for
at least five reaction cycles without significant loss of catalytic activity. |
en_US |
dc.description.uri |
https://www.scimagojr.com/journalsearch.php?q=21100332402&tip=sid&clean=0 |
|
dc.language.iso |
en |
en_US |
dc.publisher |
Multidisciplinary Digital Publishing Institute (MDPI) |
en_US |
dc.relation.ispartofseries |
Catalysts;2024, 14, 185. |
|
dc.subject |
winery wastes; biochar; sulfonated magnetic catalysts; 5-hydroxymethylfurfural; biomass valorization; biorefinery |
en_US |
dc.title |
A Closed-Loop Biorefinery Approach for the Valorization of Winery Waste: The Production of Iron-Sulfonated Magnetic Biochar Catalysts and 5-Hydroxymethyl Furfural from Grape Pomace and Stalks |
en_US |
dc.type |
Article |
en_US |
dc.identifier.doi |
https://doi.org/10.3390/catal14030185 |
|
dc.Affiliation |
October University for modern sciences and Arts MSA |
|