English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/215654
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Stable Continuous Production of γ-Valerolactone from Biomass-Derived Levulinic Acid over Zr–Al-Beta Zeolite Catalyst

AuthorsLópez-Aguado, Clara; Paniagua, Marta; Melero, Juan Antonio; Iglesias, Jose; Juárez, Pablo; López Granados, Manuel ; Morales, Gabriel
KeywordsBiomass valorization
Levulinic acid
Y-valerolactone (GVL)
Beta zeolite
Fixed bed
Continuous flow
Issue Date17-Jun-2020
PublisherMultidisciplinary Digital Publishing Institute
CitationCatalysts 10(6): 678 (2020)
AbstractThe one-pot conversion of biomass-derived platform molecules such as levulinic acid (LA) and furfural (FAL) into γ-valerolactone (GVL) is challenging because of the need for adequate multi-functional catalysts and high-pressure gaseous hydrogen. As a more sustainable alternative, here we describe the transfer hydrogenation of LA to GVL using isopropanol as a hydrogen donor over a Zr-modified beta zeolite catalyst in a continuous fixed-bed reactor. A stable sustained production of GVL was achieved from the levulinic acid, with both high LA conversion (ca. 95%) and GVL yield (ca. 90%), for over at least 20 days in continuous operation at 170 °C. Importantly, the small decay in activity can be advantageously overcome by the means of a simple in situ thermal regeneration in the air atmosphere, leading to a complete recovery of the catalyst activity. Key to this outstanding result is the use of a Zr-modified dealuminated beta zeolite with a tailored Lewis/Brønsted acid sites ratio, which can synergistically catalyze the tandem steps of hydrogen transfer and acid-catalyzed transformations, leading to such a successful and stable production of GVL from LA.
Description© 2020 by the authors.
Publisher version (URL)https://doi.org/10.3390/catal10060678
Appears in Collections:(ICP) Artículos
Files in This Item:
File Description SizeFormat 
Stable_Lopez_Aguado_Art2020.pdf1,6 MBAdobe PDFThumbnail
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.