SBA-15 Supported Ni-Cu Catalysts for Hydrodeoxygenation of m-cresol to Toluene.

Autor: Deplazes R; CNRS, Centrale Lille, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Univ. Artois, Université de Lille, 59000, Lille, France., Teles CA; UMR 7285, Université de Poitiers, Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), rue Michel Brunet, BP633, 86022, Poitiers, France., Ciotonea C; Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), UR 4492, Université du Littoral Côte d'Opale, 59140, Dunkerque, France., Simon P; CNRS, Centrale Lille, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Univ. Artois, Université de Lille, 59000, Lille, France., El Rassi E; CNRS, Centrale Lille, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Univ. Artois, Université de Lille, 59000, Lille, France., Dhainaut J; CNRS, Centrale Lille, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Univ. Artois, Université de Lille, 59000, Lille, France., Marinova M; Université de Lille, CNRS, INRA, Centrale Lille, Université Artois, FR 2638 - IMEC - Institut Michel-Eugène Chevreul, 59000, Lille, France., Canilho N; Laboratoire Lorrain de Chimie Moléculaire (L2CM), UMR 7053, Université de Lorraine, 54506, Vandœuvre-lès-Nancy, France., Richard F; UMR 7285, Université de Poitiers, Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), rue Michel Brunet, BP633, 86022, Poitiers, France., Royer S; CNRS, Centrale Lille, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Univ. Artois, Université de Lille, 59000, Lille, France.
Jazyk: angličtina
Zdroj: ChemSusChem [ChemSusChem] 2025 Jan 02; Vol. 18 (1), pp. e202400685. Date of Electronic Publication: 2024 Sep 17.
DOI: 10.1002/cssc.202400685
Abstrakt: Amidst concerns over fossil fuel dependency and environmental sustainability, the utilization of biomass-derived aromatic compounds emerges as a viable solution across diverse industries. In this scheme, the conversion of biomass involves pyrolysis, followed by a hydrodeoxygenation (HDO) step to reduce the oxygen content of pyrolysis oils and stabilize the end products including aromatics. In this study, we explored the properties of size controlled NiCu bimetallic catalysts supported on ordered mesoporous silica (SBA-15) for the catalytic gas-phase HDO of m-cresol, a lignin model compound. We compared their performances with monometallic Ni and Cu catalysts. The prepared catalysts contained varying Ni to Cu ratios and featured an average particle size of approximately 2 nm. The catalytic tests revealed that the introduction of Cu alongside Ni enhanced the selectivity for the direct deoxygenation (DDO) pathway, yielding toluene as the primary product. Optimal performance was observed with a catalyst composition comprising 5 wt.% Ni and 5 wr.% Cu, achieving 85 % selectivity to toluene. Further increasing the Cu content improved turnover frequency (TOF) values, but reduced DDO selectivity. These findings underscore the importance of catalyst design in facilitating biomass-derived compound transformations and offer insights into optimizing catalyst composition for more selective HDO reactions.
(© 2024 The Authors. ChemSusChem published by Wiley-VCH GmbH.)
Databáze: MEDLINE
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