Journal
JOURNAL OF CATALYSIS
Volume 344, Issue -, Pages 535-552Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2016.10.009
Keywords
Dihydroeugenol; 2-Methoxy-4-propylphenol; Lignin; Pyrolysis upgrading; Hydrodeoxygenation (HDO); Bimetallic catalysts; Platinum; Molybdenum
Categories
Funding
- National Science Foundation Graduate Research Fellowship Program (NSF GRFP) [DGE-1333468]
- U.S. Department of Energy (DOE) [DE-FG36-08GO18087]
- Center for Direct Catalytic Conversion of Biomass to Biofuels (C3Bio)
- Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0000997]
- National Science Foundation Emerging Frontiers in Research and Innovation (NSF EFRI) [0938033-DGE]
- Institute for Atom-efficient Chemical Transformations (IACT)
- U.S. Department of Energy, Office of Science, and Office of Basic Energy Sciences [DE-AC02-06CH11357]
- Department of Energy
- U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886, DE-SC0012704]
Ask authors/readers for more resources
High-pressure, vapor-phase, hydrodeoxygenation (HDO) reactions of dihydroeugenol (2-methoxy-4-propylphenol), as well as other phenolic, lignin-derived compounds, were investigated over a bimetallic platinum and molybdenum catalyst supported on multi-walled carbon nanotubes (5%Pt2.5%Mo/MWCNT). Hydrocarbons were obtained in 100% yield from dihydroeugenol, including 98% yield of the hydrocarbon propylcyclohexane. The final hydrocarbon distribution was shown to be a strong function of hydrogen partial pressure. Kinetic analysis showed three main dihydroeugenol reaction pathways: HDO, hydrogenation, and alkylation. The major pathway occurred via Pt catalyzed hydrogenation of the aromatic ring and methoxy group cleavage to form 4-propylcyclohexanol, then Mo catalyzed removal of the hydroxyl group by dehydration to form propylcyclohexene, followed by hydrogenation of propylcyclohexene on either the Pt or Mo to form the propylcyclohexane. Transalkylation by the methoxy group occurred as a minor side reaction. Catalyst characterization techniques including chemisorption, scanning transmission electron microscopy, X-ray absorption spectroscopy, and X-ray photoelectron spectroscopy were employed to characterize the catalyst structure. Catalyst component's identified were Pt particles, bimetallic PtMo particles, a Mo carbide-like phase, and Mo oxide phases. (C) 2016 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available