Abstract
Experiments have been conducted with a thermogravimetric analyzer for sulfation of various calcined limestone or dolomite sorbents under reaction conditions similar to those in a fluidized bed coal combustor. The volume reaction model has been utilized to account for the heterogeneous sulfation reaction of calcined limestone or dolomite. Effects of particle size and SO 2 concentration on the extent of sulfation have been analyzed on the basis of the model. Also numerical simulation has been made of the effect of wearing off the particle outer surface during sulfation. The applicability of the model has been verified with experimental data for the sulfation reaction obtained in this study and other data available in the literature.
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