萃余煤的氧化研究

Study on the oxidation of coal residue

选取枣庄煤、东北煤、济宁煤为研究对象,分别测定了三种煤的全硫含量、发热量和热重变化,然后以二硫化碳、丙酮为萃取剂,采用索氏萃取器分别对三种煤进行彻底萃取,得到的萃余煤用双氧水进行氧化,最后用四氢呋喃萃取所得的氧化煤。用FTi R对枣庄、东北、济宁三种原煤、萃余煤、氧化煤进行了分析与比较。FTi R分析表明,无论是萃余煤还是氧化煤其中的物质种类变化不大,但各物质的含量发生很大的变化。

The selection of Zaozhuang coal, the coal, Jining coal as the research object, respectively measured the total sulfur content in coal, heat and thermal weight change of three kinds of coal, and then using carbon disulifde and acetone as extraction agent, by Soxhlet extractor respectively thoroughly extract three kinds of coal, and oxidated the coal residue by hydrogen peroxide, at last extracted the oxidized coal using tetrahydrofuran. analyzed and compared Zaozhuang, northeast, Jining , coal residue oxidized coal with the FTiR, FTiR analysis showed that, whether it is coal residue or changes in the oxidation of coal species is little, but the content of each substance changes a lot.