Liquid‐phase hydrodeoxygenation of 4‐propylphenol to propylbenzene : reducible supports for Pt catalysts
|Author:||Mäkelä, Eveliina1; González Escobedo, José Luis1; Neuvonen, Jouni1;|
1Department of Chemical and Metallurgical Engineering Aalto University School of Chemical Engineering P. O. Box 16100, 00076 AALTO, Finland
2Department of Applied Physics Aalto University School of Science P. O. Box 15100, 00076 AALTO, Finland
3Neste Corporation P. O. Box 310, 06101 Porvoo, Finland
4Research unit of Sustainable Chemistry University of Oulu P.O. Box 8000, 90014 Oulu, Finland
|Online Access:||PDF Full Text (PDF, 3.7 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2020052639165
John Wiley & Sons,
|Publish Date:|| 2020-05-26
Pyrolysis and liquefaction biocrudes obtained from lignocellulose are rich in phenolic compounds that can be converted to renewable aromatics. In this study, Pt catalysts on reducible metal oxide supports (Nb₂O₅, TiO₂), along with non‐reducible ZrO₂ as a reference, were investigated in the liquid‐phase hydrodeoxygenation (HDO) of 4‐propylphenol (350 °C, 20 bar H₂, organic solvent). The most active catalyst was Pt/Nb₂O₅, which led to the molar propylbenzene selectivity of 77%, and a yield of 75% (98% conversion). Reducible metal oxide supports provided an increased activity and selectivity to the aromatic product compared to ZrO₂, and the obtained results are among the best reported in liquid phase. The reusability of the spent catalysts was also studied. The spent Pt/Nb₂O₅ catalyst provided the lowest conversion, while the product distribution of the spent Pt/ZrO₂ catalyst changed towards oxygenates. The results highlight the potential of pyrolysis or liquefaction biocrudes as a source of aromatic chemicals.
|Pages:||4090 - 4104|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
116 Chemical sciences
Neste Corporation funded this work. E. M. acknowledges a grant from Aalto University and J. L. G. E. acknowledges personal grants from Fortum Foundation (number 201800142) and from the Finnish Foundation for Technology Promotion (number 6712).
© 2020 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.