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Effect of Ni Reducibility on Anisole Hydrodeoxygenation Activity in the La-Ni/γ-Al2O3 Catalytic System

  • Brett Pomeroy , Teri Doxtator , Jose E. Herrera and Dominic Pjontek ORCID logo EMAIL logo
Published/Copyright: December 4, 2019
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International Journal of Chemical Reactor Engineering
From the journal International Journal of Chemical Reactor Engineering Volume 18 Issue 2

Abstract

The effect of lanthanum addition on the activity of a series of Ni/γ-Al2O3 catalysts for anisole hydrodeoxygenation (HDO) was evaluated. Catalyst characterization using hydrogen temperature-programmed reduction (H2-TPR) and UV-visible spectroscopy suggests that lanthanum incorporation results in the formation of larger metallic Ni domains in the catalyst surface, which in turn favour the direct anisole hydrogenation pathway to methoxycyclohexane. Despite the improvements to reducibility that resulted from the incorporation of La, the catalysts displayed lower selectivity towards cyclohexane, independent of total nickel loading. The catalytic activity results were rationalized in terms of a proposed reaction pathway where anisole is initially hydrogenated followed by sequential deoxygenation steps.

Keywords: hydrodeoxygenation; anisole; La-Ni/γ-Al2O3; lanthanum doping; H2-TPR

Funding source: the Natural Sciences and Engineering Research Council of Canada

Award Identifier / Grant number: RGPIN-2015-06314

Funding statement: This work was supported by the Natural Sciences and Engineering Research Council of Canada (Funder Id: http://doi.org/10.13039/501100000038, Grant Number: RGPIN-2015-06314)

Acknowledgements

The authors would like to acknowledge the Discovery Grant from the Natural Sciences and Engineering Research Council (NSERC) of Canada and the Faculty of Engineering at the University of Western Ontario for financial support of this study.

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Received: 2019-04-02
Revised: 2019-09-22
Accepted: 2019-11-12
Published Online: 2019-12-04

© 2020 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

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  3. Electrochemical Mechanism for the Preparation of Fe-Si Alloys by Melts Electrodeposition
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https://doi.org/10.1515/ijcre-2019-0066
Keywords for this article
hydrodeoxygenation; anisole; La-Ni/γ-Al2O3; lanthanum doping; H2-TPR

Articles in the same Issue

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  2. Effect of Ni Reducibility on Anisole Hydrodeoxygenation Activity in the La-Ni/γ-Al2O3 Catalytic System
  3. Electrochemical Mechanism for the Preparation of Fe-Si Alloys by Melts Electrodeposition
  4. NOx reduction by CO over Fe/ZSM-5: A comparative study of different preparation techniques
  5. Investigation of Hydrodynamic and Heat Transfer Characteristics of Gas-liquid Taylor flow in Square Microchannel
  6. Modeling of Non-Newtonian Flow in an Inverted Cone Foam Breaker
  7. Numerical Investigations of a Passive Micromixer Based on Minkowski Fractal Principle
  8. Magnetic Multi-walled Carbon Nanotube as Effective Adsorbent for Ciprofloxacin (CIP) Removal from Aqueous Solutions: Isotherm and Kinetics Studies
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  11. Hetero-structured Iron Molybdate Nanoparticles: Synthesis, Characterization and Photocatalytic Application
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