选煤脱除氟、砷的研究

Fluorine and arsenic removal by coal-cleaning technology

研究了采自西南3省、1市17个选煤厂的原煤和洗精煤样品,分析了灰分、氟和砷含量,探讨了选煤脱除氟、砷的机理和影响因素。结果表明,选煤能有效降低煤中氟、砷的含量,应用前景广阔。研究了采自西南3省、1市17个选煤厂的原煤和洗精煤样品,分析了灰分、氟和砷含量,探讨了选煤脱除氟、砷的机理和影响因素。结果表明,选煤能有效降低煤中氟、砷的含量,应用前景广阔。

Raw coal and clean coal samples were collected from 17 coal washeries distributed over three provinces and one municipality of south-western China. Ash yield, Fluorine and Arsenic were determined, and their removal ei.i.iciencies achieved through conventional coal cleaning were discussed. Although there is variability in Fluorine and Arsenic reductions, the data suggest that coal cleaning techniques may be useful in reducing trace element concentrations in selected coals.