The gasification technology has been object of study of many researchers,
especially those involved in power generation use biomass. This paper presents a
simplified model for biomass gasification based on chemical equilibrium
considerations. The model consists in the minimization of the Gibbs free energy of
the produced gas, constrained by mass and energy balances for the system. Despite
the simplicity of the model, its results are reliable in identifying the tendencies of the
working parameters for the system. Biomass composition, gasification temperature
(air supplied), moisture content, air temperature, and heat losses are parameters that
may be varied in order to evaluate different operational points. Results obtained are
compared to those found in real operation of gasification processes and they shown
good agreement.
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