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AuthorBoddula, Rajender
AuthorShanmugam, Paramasivam
AuthorSrivatsava, Rajesh K.
AuthorTabassum, Nabila
AuthorPothu, Ramyakrishna
AuthorNaik, Ramachandra
AuthorSaran, Aditya
AuthorViswanadham, Balaga
AuthorRadwan, Ahmed B.
AuthorAl-Qahtani, Noora
Available date2024-09-16T10:35:13Z
Publication Date2023
Publication NameReactions
ResourceScopus
ISSN2624781X
URIhttp://dx.doi.org/10.3390/reactions4030028
URIhttp://hdl.handle.net/10576/58986
Abstractγ-valerolactone (GVL) is a crucial chemical feedstock used in the production of fuel additives, renewable fuels, and fine chemicals alternative to petroleum-based solvents and chemicals, supporting the transition to sustainable energy solutions. It is promptly acquired by hydrogenating levulinic acid (LA) in a gaseous or liquid phase with a homogeneous or heterogeneous catalyst using a variety of recognized catalytic processes. Herein, this work focuses on the use of silica-supported copper (Cu/SiO2) catalysts for the gas-phase hydrogenation of LA to GVL under mild reaction conditions. The study analyzes how copper loading can affect the catalytic activity of the Cu/SiO2, while the flow rate of LA, time-on-stream, reaction temperature, and LA concentration affect the catalytic efficiency. The SiO2 support’s various Cu loadings are crucial for adjusting the catalytic hydrogenation activity. One of the studied catalysts, a 5 wt% Cu/SiO2 catalyst, demonstrated ~81% GVL selectivity with ~78% LA conversion and demonstrated stability for ~8 h while operating at atmospheric pressure and temperature (265 °C) and 0.5 mL/h of LA flow rate. The ability to activate hydrogen, high amount of acidic sites, and surface area were all discovered to be advantageous for increased GVL selectivity.
SponsorThis work was supported by Qatar University through a National Capacity Building Program grant (NCBP) [QUCP-CAM-20/23-463]. Statements made herein are solely the responsibility of the authors.
Languageen
PublisherMDPI
Subjectbiofuel additive
biomass
green solvent
selectivity
vapour-phase hydrogenation
γ-valerolactone
TitleCatalytic Valorisation of Biomass-Derived Levulinic Acid to Biofuel Additive γ-Valerolactone: Influence of Copper Loading on Silica Support
TypeArticle
Pagination465-477
Issue Number3
Volume Number4
dc.accessType Open Access


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