Silica-supported noble metal phosphide catalysts (e.g. Ru2P, RuP, Rh2P) were prepared, characterized by XRD, TEM and chemisorption, and their properties for furan and guaiacol hydrodeoxygenation (HDO) were investigated.  The HDO properties were compared with those of reduced noble metal catalysts having the same loading.  The furan HDO activity was observed to depend strongly on the P/Ru molar ratio of the catalyst precursors, with the maximum furan HDO activity observed for a Ru2P/SiO2 catalyst prepared from a precursor having P/Ru = 0.86.  The furan HDO product selectivities of the metal phosphide (e.g. Ru2P/SiO2) and reduced metal catalysts (e.g. Ru/SiO2) differed significantly.  Preliminary guaiacol HDO activity and product selectivity data will also be presented.  The observed trends in HDO activity, selectivity and resistance to poisoning of the noble metal phosphide catalysts will be discussed.

Hydrodeoxygenation of furan and guaiacol over noble metal phosphide catalysts

243rd National Meeting (2012)

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