Torrefaction for entrained-flow gasification of biomass
P.C.A. Bergman, A.R. Boersma, J.H.A. Kiel, M.J. Prins, K.J. Ptasinski, F.J.J.G. Janssen, ECN, Netherlands, ECN-C--05-067,

A major technical obstacle in entrained-flow gasification of biomass concerns the size reduction and the subsequent pneumatic transport of the biomass powder. The fibrous structure of fresh biomass makes it very difficult and costly to reduce its particle size down to below 500 microns.

Torrefaction, a thermal treatment of biomass in the temperature range of 200

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