1. FBC desulfurization process using coal with low sulfur content, high oxidizing conditions and metamorphic limestones
- Author
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Saulo Roca Braganca and Jorge Luiz Castellan
- Subjects
Sorbent ,Materials science ,Waste management ,business.industry ,General Chemical Engineering ,Metallurgy ,lcsh:TP155-156 ,Coal combustion products ,Fluidized bed combustor ,Combustion ,Metamorphic limestone ,Dessulfurização ,Flue-gas desulfurization ,Combustão do carvão ,Low SO2 concentration ,Coal ,Fluidized bed ,Desulfurization ,Fluidized bed combustion ,Fluidization ,lcsh:Chemical engineering ,business - Abstract
A metamorphic limestone and a dolomite were employed as SO2 sorbents in the desulfurization of gas from coal combustion. The tests were performed in a fluidized bed reactor on a bench and pilot scale. Several parameters such as bed temperature, sorbent type, and sorbent particle size at different Ca/S molar ratios were analyzed. These parameters were evaluated for the combustion of coal with low-sulfur/high-ash content, experimental conditions of high air excess and high O2 level in fluidization air. Under these conditions, typical of furnaces, few published data can be found. In this work, a medium level of desulfurization efficiency (~60%) for Ca/S = 2 was obtained.
- Published
- 2009
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