Now a days a combination of different
type of simulation tools has been used. For operational aspects, a combination
of physical models, including energy and mass balances, and statistical models,
like partial least square (PLS) models, provided with the gas composition under
different operating conditions. Real process aspects like
kinetics and the difference
in product gas quality as a function of temperature, load and relative
oxidation during the gasification was included.
Direct system design was
addressed using equilibrium calculations with programs like ASPEN plus. In
principle,
different conditions can be
calculated by changing different variables, although no information of the
direct absolute gas composition can be obtained. Experimental data from
operation of pilot plants and real processes using different fuels and
operation conditions.
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