Review of Upgrading Researches of Biomass Pyrolysis Oil to Improve its Fuel Properties (pp. 193-200)
Authors: (Junming Xu, Jianchun Jiang and Kang Sun, Institute of Chemical Industry of Forest Products, CAF, Nanjing, China)
Abstract: Biomass fast pyrolysis has aroused great attention and interests in recent years.
However, its direct use as liquid fuel raises many problems because of its acidity, high
oxygen content and high water content. Due to its poor properties, several methods of
upgrading the original bio-oil were developed in recent years. This paper reviews the
main methods of upgrading biomass pyrolysis oil such as hydrodeoxygenation, catalytic
cracking of pyrolysis vapors, emulsification and esterification. The advantages and
shortcomings of upgrading methods were discussed and compared. Furthermore, the
problems and focuses were summarized with some suggestions presented on upgrading
and applications of bio-oil.