This study consists in a preliminary petrographic and mineralogical characterization of coals, fly and bottom ashes from different power stations in southernmost Brazil (Presidente Medici at Candiota/ Rio Grande do Sul; Jorge Lacerda at Capivari de Baixo/ Santa Catarina; and COPEL at Figueira/ Parana) (Fig. 1). Samples comprise pulverized coal and fly and bottom ashes from the Rio Bonito Formation, Parana Basin. The methodology applied in these samples was maceral analyses, vitrinite reflectance (Ro %), and X-ray diffraction (XRD), with the aim to observe compositional differences and to determine the rank of the coals, as well as determine the mineral matter. The fly and bottom ashes were analyses in terms of types of unburnt organic matter and x-ray diffraction to determine mineral associations.
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机译：这项研究包括对巴西最南端不同电厂的煤，粉煤灰和底灰的初步岩石学和矿物学表征（位于Candiota /南里奥格兰德州的Medicid总统;位于Capixvari de Baixo /圣卡塔琳娜州的Jorge Lacerda;以及位于Figueira /的COPEL） Parana）（图1）。样品包括煤粉以及巴拉那盆地里约博尼图组的粉煤灰和底灰。这些样品中使用的方法是宏观分析，镜质体反射率（Ro％）和X射线衍射（XRD），目的是观察成分差异并确定煤的等级以及确定矿物质。根据未燃烧的有机物的类型和X射线衍射分析了粉煤灰和底灰，以确定矿物的缔合。
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