Bio-Oil Production from Biomass by Flash Pyrolysis in a Three-Stage Fluidized Bed Reactors System

DOI: 10.4236/msce.2014.22002   PDF   HTML     5,104 Downloads   8,614 Views   Citations

Abstract

A novel system of fast pyrolysis and vapour quenching was developed at pilot scale to obtain bio-oil from biomass. The system uses three-stage of interconnected fluidized bed reactors that continuously circulate silica sand from an internal pyrolysis reactor to a second external annular reactor for char burning, which generates most of the heat required by the pyrolysis reactor, and a third sand-preheating reactor that burns non-condensable pyrolysis gas. The hot vapours, after high temperature cleaning, are quenched in a flash cooling system. The process generates up to 62% of bio-oil, 25% of char and 13% of non-condensable gas. The heat requirements for the total system are provided by burning part of the char and non-condensable gases generated in the pyrolysis step and by preheating the fluidizing gas for the pyrolysis reactor.

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Wilkomirsky, I. , Moreno, E. and Berg, A. (2014) Bio-Oil Production from Biomass by Flash Pyrolysis in a Three-Stage Fluidized Bed Reactors System. Journal of Materials Science and Chemical Engineering, 2, 6-10. doi: 10.4236/msce.2014.22002.

Conflicts of Interest

The authors declare no conflicts of interest.

References

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http://dx.doi.org/10.1016/S0016-2361(02)00138-2

  
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