胜利褐煤提质过程中形貌变化的研究
首发时间:2012-04-09
摘要:本文采用逐级化学提取的方法对胜利褐煤(SL lignite)固有活性矿物质进行分离解析,并对矿物质脱除各阶段煤样进行SEM和EDAX研究。结果表明,逐级脱除法可以在不影响胜利褐煤总体形貌的基础上达到脱灰的标准,同时提高碳氧的含量以及比值。本文为进一步研究胜利褐煤中矿物质成分种类、赋存状态及矿物质在热解、燃烧、气化和液化过程的作用及其机理研究奠定基础。
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Morphology Change of SL Lignite in the Upgraded Progress
Abstract:In this paper the method of chemical step-extraction were used to separate the inherent active mineral elements in SL lignite, and each stage of minerals removal coal samples was studied by SEM and EDAX. The results of the studies show that, step-down method can remove the ash up to standard without influence on the overall morphology of the SL lignite. This paper lay a foudation for the further research of the composition types and forms in SL lignite mineral and the effects of minerals in the progresses of pyrolysis and combustion and liquefaction and gasification.
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