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المؤلفBoddula, Rajender
المؤلفShanmugam, Paramasivam
المؤلفSrivatsava, Rajesh K.
المؤلفTabassum, Nabila
المؤلفPothu, Ramyakrishna
المؤلفNaik, Ramachandra
المؤلفSaran, Aditya
المؤلفViswanadham, Balaga
المؤلفRadwan, Ahmed B.
المؤلفAl-Qahtani, Noora
تاريخ الإتاحة2024-09-16T10:35:13Z
تاريخ النشر2023
اسم المنشورReactions
المصدرScopus
الرقم المعياري الدولي للكتاب2624781X
معرّف المصادر الموحدhttp://dx.doi.org/10.3390/reactions4030028
معرّف المصادر الموحدhttp://hdl.handle.net/10576/58986
الملخصγ-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.
راعي المشروعThis 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.
اللغةen
الناشرMDPI
الموضوعbiofuel additive
biomass
green solvent
selectivity
vapour-phase hydrogenation
γ-valerolactone
العنوانCatalytic Valorisation of Biomass-Derived Levulinic Acid to Biofuel Additive γ-Valerolactone: Influence of Copper Loading on Silica Support
النوعArticle
الصفحات465-477
رقم العدد3
رقم المجلد4
dc.accessType Open Access


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