流化床热解过程中煤中氟的挥发性研究

来源 :燃料化学学报 | 被引量 : 0次 | 上传用户:mileyChina
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采用大同、平朔、霍林河、义马四种煤研究了热解过程中煤中氟的挥发行为.研究表明,随热解温度的升高,氟的挥发率有增加趋势.但其行为不仅取决于元素氟及其化合物本身的挥发性,同时还受其赋存形态、共存矿物离子等原生条件和热解条件的影响.氟磷灰石类矿物质并非四种煤中氟的主要赋存形态.除大同煤外,难挥发性氟的含量均高于65%,难挥发性氟至少部分是以CaF2或CaF2基的多元络合物形式存在的.
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