Enhancing Stability of γ-Al2O3-Supported NiCu Catalysts by Impregnating Basic Oxides in the Hydrodeoxygenation of Anisole

Author:

Vandevyvere Tom12,Sabbe Maarten K.12ORCID,Thybaut Joris W.2ORCID,Lauwaert Jeroen1ORCID

Affiliation:

1. Industrial Catalysis and Adsorption Technology (INCAT), Department of Materials, Textiles and Chemical Engineering (MaTCh), Faculty of Engineering and Architecture, Ghent University, Valentin Vaerwyckweg 1, 9000 Ghent, Belgium

2. Laboratory for Chemical Technology (LCT), Department of Materials, Textiles and Chemical Engineering (MaTCh), Faculty of Engineering and Architecture, Ghent University, Technologiepark 125, 9052 Ghent, Belgium

Abstract

Basic oxides such as CaO and MgO were added to a γ-Al2O3 support in NiCu-catalyzed hydrodeoxygenation of anisole. A commercial CaO-MgO-γ-Al2O3 was compared to a benchmark γ-Al2O3 and in-house variants with sequential oxide impregnation prior to NiCu impregnation. CaO did not have a significant impact on activity compared to the benchmark, while MgO improved NiCu dispersion, enhancing activity. Co-impregnation of CaO and MgO resulted in intermediate activity. Despite decreased demethoxylation, likely due to moderated support acidity, both CaO-modified and the commercially supported catalysts showed improved stability over 48 h Time On Stream.

Funder

Research Foundation—Flanders

Special Research Fund at Ghent University

Publisher

MDPI AG

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