Acetic acid ketonization over Fe3O4/SiO2 for pyrolysis bio-oil upgrading


A family of silica supported, magnetite nanoparticle catalysts was synthesized and investigated for continuous flow acetic acid ketonization as a model pyrolysis bio-oil upgrading reaction. Physicochemical properties of Fe3O4/SiO2 catalysts were characterized by HRTEM, XAS, XPS, DRIFTS, TGA and porosimetry. Acid site densities were inversely proportional to Fe3O4 particle size, although acid strength and Lewis character were size invariant, and correlated with the specific activity for vapor phase acetic ketonization to acetone. A constant activation energy (~110 kJ.mol-1), turnover frequency (~13 h-1) and selectivity to acetone of 60 % were observed for ketonization across the catalyst series, implicating Fe3O4 as the principal active component of Red Mud waste.

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Divisions: College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > School of Infrastructure and Sustainable Engineering > Chemical Engineering & Applied Chemistry
College of Engineering & Physical Sciences > Energy and Bioproducts Research Institute (EBRI)
Additional Information: © 2016 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. Funding: EPSRC (EP/K036548/2, EP/K014676/1, EP/N009924/1) ; and Royal Society for the award of an Industry Fellowship.
Uncontrolled Keywords: carboxylic acids,iron,nanoparticles,supported catalysts,waste prevention,Catalysis,Physical and Theoretical Chemistry,Organic Chemistry,Inorganic Chemistry
Publication ISSN: 1867-3899
Last Modified: 03 Jun 2024 07:24
Date Deposited: 20 Dec 2016 15:05
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2017-05-10
Published Online Date: 2016-11-03
Accepted Date: 2016-11-02
Submitted Date: 2016-10-08
Authors: Bennett, James
Parlett, Christopher (ORCID Profile 0000-0002-3651-7314)
Isaacs, Mark
Durndell, Lee J.
Olivi, Luca
Lee, Adam F. (ORCID Profile 0000-0002-2153-1391)
Wilson, Karen (ORCID Profile 0000-0003-4873-708X)



Version: Published Version

License: Creative Commons Attribution

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