Upgrading of bio-oil via acid-catalyzed reactions in alcohols - A mini review

© 2016 Elsevier B.V. Bio-oil is a condensable liquid produced from the pyrolysis of biomass, which can be upgraded to biofuels. Bio-oil is corrosive as it contains significant amounts of carboxylic acids, creating difficulties in handling of bio-oil and applications of bio-oil. Acid-treatment of bio...

Full description

Bibliographic Details
Main Authors: Hu, Xun, Gunawan, Richard, Mourant, Daniel, Hasan, M.D Mahmudul, Wu, Liping, Song, Yao, Lievens, Caroline, Li, Chun-Zhu
Format: Journal Article
Published: Elsevier 2017
Online Access:http://hdl.handle.net/20.500.11937/12056
Description
Summary:© 2016 Elsevier B.V. Bio-oil is a condensable liquid produced from the pyrolysis of biomass, which can be upgraded to biofuels. Bio-oil is corrosive as it contains significant amounts of carboxylic acids, creating difficulties in handling of bio-oil and applications of bio-oil. Acid-treatment of bio-oil in alcohols is an upgrading method to transform the carboxylic acids in bio-oil into neutral esters. This study reviewed the recent progress in the research about the acid-catalyzed conversion of bio-oil in alcohols. The various catalytic processes for the acid treatment of bio-oil and the reaction network of some individual components of bio-oil during the upgrading were focused. The interactions among the main components of bio-oil during the acid-treatments were also discussed.