Acetic Acid Ketonization over Fe₃O₄/SiO₂ for Pyrolysis Bio-Oil Upgrading.

ABSTRACT: A family of silica-supported, magnetite nanoparticle catalysts was synthesised and investigated for continuous-flow acetic acid ketonisation as a model pyrolysis bio-oil upgrading reaction. The physico-chemical properties of Fe₃O₄/SiO₂ catalysts were characterised by using high-resolution transmission electron microscopy, X-ray absorption spectroscopy, X-ray photo-electron spectroscopy, diffuse reflectance infrared Fourier transform spectroscopy, thermogravimetric analysis and porosimetry. The acid site densities were inversely proportional to the Fe₃O₄ particle size, although the acid strength and Lewis character were size-invariant, and correlated with the specific activity for the vapour-phase acetic ketonisation to acetone. A const

SUBMITTER: Bennett JA 

PROVIDER: S-EPMC5434921 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature