The Direct Reduction process can be carried out using
syngas from biomass. Mathematical models of the
integrated process gasification plus direct reduction
have been used to evaluate flow rate, temperature and
composition of the gas in the various steps of the whole
process. Fluidised bed gasification and operation with
technological oxygen at high pressures is the proposed
solution to produce syngas. Best candidates for such
application are biomass from forest and wood industry
and agricultural residues. Both of such type of biomass
are present and distributed in many European areas
in such amount to make industrially possible their use,
taking into account the logistic requirements. A cost
between 30-60 Euros/t DRI is roughly estimated.
The characteristics of the syngas implies the adoption
of purification steps, before the use of the syngas in
the shaft furnace, using technologies permitting hot gas
cleaning, to save energy efficiency of the process.