Power generation from biomass

Pyrolysis liquid from wood (pine) and from straw

Fast pyrolysis is a process that consists in heating organic materials in absence of air in order to produce organic vapours that can be condensed to obtain a liquid: the pyrolysis oil. Up to 70 wt.% of the feedstock is converted into this dark-coloured liquid, which contains almost no minerals and sulphur components.

The production of pyrolysis oil offers several advantages:

  • Pyrolysis oil is easy to store and to transport. Pyrolysis makes it possible to decouple biomass supply and biofuel demand.
  • Application of liquid biofuels such as pyrolysis oil is easier than that of solid biofuels.
  • Pyrolysis oil is second-generation biomass technology and does not interfere with the food chain.
  • Pyrolysis oil is a greenhouse gas neutral biofuel.

Pyrolysis oil characterized (wood derived):

Composition C2H5O2
Density 1150-1250 kg/m3
Higher heating value 17-20 GJ/m3
Water content 15-30 wt.%
Viscosity 25-1000 cP
Ash < 0.1 wt.%
pH 2.5-3