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Supported iron nanoparticles for the hydrodeoxygenation of microalgal oil to green diesel

TitleSupported iron nanoparticles for the hydrodeoxygenation of microalgal oil to green diesel
Publication TypeJournal Article
Year of Publication2014
AuthorsKandel, K, Anderegg, JW, Nelson, NC, Chaudhary, U, Slowing, II
JournalJournal of Catalysis
Volume314
Pagination142-148
Date Published05
Type of ArticleArticle
ISBN Number0021-9517
Accession NumberWOS:000336951900015
Keywordsacetaldehyde, acetic-acid reduction, biofuels, catalytic deoxygenation, Fatty acids, fatty-acids, fe nanoparticles, Green diesel, hydrodeoxygenation, Iron nanoparticles, kinetics, Mesoporous silica nanoparticles, Microalgae oil, oxide catalysts, range alkanes, selective hydrogenation
Abstract

Iron nanoparticles supported on mesoporous silica nanoparticles (Fe-MSN) catalyze the hydrotreatment of fatty acids with high selectivity for hydrodeoxygenation over decarbonylation and hydrocracking. The catalysis is likely to involve a reverse Mars-Van Krevelen mechanism, in which the surface of iron is partially oxidized by the carboxylic groups of the substrate during the reaction. The strength of the metal-oxygen bonds that are formed affects the residence time of the reactants facilitating the successive conversion of carboxyl first into carbonyl and then into alcohol intermediates, thus dictating the selectivity of the process. The selectivity is also affected by the pretreatment of Fe-MSN, the more reduced the catalyst the higher the yield of hydrodeoxygenation product. Fe-MSN catalyzes the conversion of crude microalgal oil into diesel-range hydrocarbons. (c) 2014 Elsevier Inc. All rights reserved.

DOI10.1016/j.jcat.2014.04.009
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3D Catalysis