F. Sowa et al., APPLICATION OF MONTE-CARLO SIMULATION OF CHAR GASIFICATION IN A FLUIDIZED-BED GASIFIER, Fuel processing technology, 36(1-3), 1993, pp. 193-200
A simulation of the allothermal steam gasification of coal in fluidize
d beds is presented. The model is basing on the Monte-Carlo simulation
of stochastic movements of coal particles in a fluidized bed and the
simultaneous calculation of the particle's mass loss due to the gasifi
cation reaction. All actual process and gasification data such as reac
tion rate, degree of conversion, product gas evolution etc. are collec
ted related to the particle's location in the fluidized bed. The evalu
ation of these data allows to obtain overall process parameters e.g. r
esidence times, mass contents of the fluidized bed etc. as well as pro
files of certain parameters as there are single product gas concentrat
ions, reaction rate etc. as a function of the bed dimensions. A compar
ison of the results from simulation and experiment is drawn showing a
good agreement of both.