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FBC desulfurization process using coal with low sulfur content, high oxidizing conditions and metamorphic limestones

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FBC desulfurization process using coal with low sulfur content, high oxidizing conditions and metamorphic limestones

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Título FBC desulfurization process using coal with low sulfur content, high oxidizing conditions and metamorphic limestones
Autor Braganca, Saulo Roca
Castellan, Jorge Luiz
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.
Contido em Brazilian journal of chemical engineering. São Paulo, SP. Vol. 26, no. 02 (Apr./June 2009), p. 375-383
Assunto Combustão do carvão
Dessulfurização
[en] Coal
[en] Desulfurization
[en] Fluidized bed combustor
[en] Low SO2 concentration
[en] Metamorphic limestone
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/30455
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