Next Article in Journal
Effect of Additives on the Activity of Nickel–Tungsten Sulfide Hydroconversion Catalysts Prepared In Situ from Oil-Soluble Precursors
Next Article in Special Issue
Alkali-Free Zn–Al Layered Double Hydroxide Catalysts for Triglyceride Transesterification
Previous Article in Journal
Structure–Activity Relationship Study of Mn/Fe Ratio Effects on Mn−Fe−Ce−Ox/γ-Al2O3 Nanocatalyst for NO Oxidation and Fast SCR Reaction
Previous Article in Special Issue
Support Effect on the Performance of Ni2P Catalysts in the Hydrodeoxygenation of Methyl Palmitate
Open AccessCommunication

Acetic Acid/Propionic Acid Conversion on Metal Doped Molybdenum Carbide Catalyst Beads for Catalytic Hot Gas Filtration

1
Energy and Transportation Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
2
Chemical Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Catalysts 2018, 8(12), 643; https://doi.org/10.3390/catal8120643
Received: 14 November 2018 / Revised: 30 November 2018 / Accepted: 7 December 2018 / Published: 9 December 2018
Catalytic hot gas filtration (CHGF) is used to precondition biomass derived fast pyrolysis (FP) vapors by physically removing reactive char and alkali particulates and chemically converting reactive oxygenates to species that are more easily upgraded during subsequent catalytic fast pyrolysis (CFP). Carboxylic acids, such as acetic acid and propionic acid, form during biomass fast pyrolysis and are recalcitrant to downstream catalytic vapor upgrading. This work developed and evaluated catalysts that can convert these acids to more upgradeable ketones at the laboratory scale. Selective catalytic conversion of these reactive oxygenates to more easily upgraded compounds can enhance bio-refinery processing economics through catalyst preservation by reduced coking from acid cracking, by preserving carbon efficiency, and through process intensification by coupling particulate removal with partial upgrading. Two metal-doped molybdenum carbide (Mo2C) supported catalyst beads were synthesized and evaluated and their performance compared with an undoped Mo2C control catalyst beads. For laboratory scale acetic acid conversion, calcium doped Mo2C supported catalyst beads produced the highest yield of acetone at ~96% at 450 °C among undoped and Ca or Ni doped catalysts. View Full-Text
Keywords: bio-oil; biomass conversion; carbide catalyst; ketonization; doped carbides bio-oil; biomass conversion; carbide catalyst; ketonization; doped carbides
Show Figures

Graphical abstract

MDPI and ACS Style

Lu, M.; Lepore, A.W.; Choi, J.-S.; Li, Z.; Wu, Z.; Polo-Garzon, F.; Hu, M.Z. Acetic Acid/Propionic Acid Conversion on Metal Doped Molybdenum Carbide Catalyst Beads for Catalytic Hot Gas Filtration. Catalysts 2018, 8, 643.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop