These authors contributed equally to this work.
Carbon Nanofiber Supported Transition-Metal Carbide Catalysts for the Hydrodeoxygenation of Guaiacol
Article first published online: 16 JUL 2013
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 5, Issue 10, pages 2964–2972, October 2013
How to Cite
Jongerius, A. L., Gosselink, R. W., Dijkstra, J., Bitter, J. H., Bruijnincx, P. C. A. and Weckhuysen, B. M. (2013), Carbon Nanofiber Supported Transition-Metal Carbide Catalysts for the Hydrodeoxygenation of Guaiacol. ChemCatChem, 5: 2964–2972. doi: 10.1002/cctc.201300280
- Issue published online: 1 OCT 2013
- Article first published online: 16 JUL 2013
- Manuscript Received: 14 APR 2013
- Netherlands Ministry of Economic Affairs
- Netherlands Ministry of Education, Culture and Science
Hydrodeoxygenation (HDO) studies over carbon nanofiber-supported (CNF) W2C and Mo2C catalysts were performed on guaiacol, a prototypical substrate to evaluate the potential of a catalyst for valorization of depolymerized lignin streams. Typical reactions were executed at 55 bar hydrogen pressure over a temperature range of 300–375 °C for 4 h in dodecane, using a batch autoclave system. Combined selectivities of up to 87 and 69 % to phenol and methylated phenolics were obtained at 375 °C for W2C/CNF and Mo2C/CNF at >99 % conversion, respectively. The molybdenum carbide-based catalyst showed a higher activity than W2C/CNF and yielded more completely deoxygenated aromatic products, such as benzene and toluene. Catalyst recycling experiments, performed with and without regeneration of the carbide phase, showed that the Mo2C/CNF catalyst was stable during reusability experiments. The most promising results were obtained with the Mo2C/CNF catalyst, as it showed a much higher activity and higher selectivity to phenolics compared to W2C/CNF.