Furfural Valorization to γ‑Valerolactone over Zr/Sn Zeolite-Supported Catalysts in a Liquid-Phase Continuous Flow Reactor
Vittoria Saraceni, Anna Saotta, Adrián García, Alessandro Allegri, Giuseppe Fornasari, Benjamin Solsona, Nikolaos Dimitratos, Stefania Albonetti
TL;DR
This study explores using a Zr/Sn catalyst in a continuous reactor to efficiently convert furfural into γ-valerolactone, a valuable chemical, with high yield and reusability.
Contribution
The first demonstration of a bimetallic Zr/Sn catalyst in a single continuous flow reactor for furfural conversion to γ-valerolactone.
Findings
A 1:1 Sn:Zr catalyst achieved ~45% GVL yield at 180°C with 2-propanol as a hydrogen source.
The catalyst showed good stability and could be reused with minimal loss in performance.
An efficient regeneration protocol was developed to maintain catalytic activity over multiple cycles.
Abstract
This work presents for the first time the combined effect of Sn and Zr in the conversion of furfural (FU) to γ-valerolactone (GVL) by using a single liquid-phase continuous flow reactor. To address the high costs and environmental impact of this cascade reaction, catalytic transfer hydrogenation is a promising approach, utilizing alcohols as hydrogen donors in place of molecular H2. This process, which requires both Lewis and Bro̷nsted acidity, when coupled with heterogeneous catalysts, offers a potentially more cost-effective and environmentally friendly alternative. The production of GVL in one pot has been studied using Sn- and Zr-based catalysts supported on dealuminated zeolite Y. The bimetallic catalyst with a Sn:Zr at. ratio of 1:1 achieved the best performance, reaching a yield to GVL of ca. 45% at 180 °C using 2-propanol as a hydrogen source, with a 10 min contact time.…
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Taxonomy
TopicsCatalysis for Biomass Conversion · Zeolite Catalysis and Synthesis · Catalysis and Hydrodesulfurization Studies