Butler, EoinEoinButlerDevlin, GerGerDevlinMeier, DietrichDietrichMeierMcDonnell, KevinKevinMcDonnell2014-09-302014-09-302011 Elsev2011-10Renewable and Sustainable Energy Reviewshttp://hdl.handle.net/10197/5976Robust alternative technology choices are required in the paradigm shift from the current crude oil-reliant transport fuel platform to a sustainable, more flexible transport infrastructure. In this vein, fast pyrolysis of biomass and upgrading of the product is deemed to have potential as a technology solution. The objective of this review is to provide an update on recent laboratory research and commercial developments in fast pyrolysis and upgrading techniques. Fast pyrolysis is a relatively mature technology and is on the verge of commercialisation. While upgrading of bio-oils is currently confined to laboratory and pilot scale, an increased understanding of upgrading processes has been achieved in recent times.enThis is the author’s version of a work that was accepted for publication in Renewable and Sustainable Energy Reviews. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Renewable and Sustainable Energy Reviews (VOL 15, ISSUE 8, (2011)) DOI: 10.1016/j.rser.2011.07.035PyrolysisBiomassBiofuelUpgradingBio-oilThermal conversionJournal Article1584171418610.1016/j.rser.2011.07.0352014-09-09https://creativecommons.org/licenses/by-nc-nd/3.0/ie/