Abstract

Five lignite samples from Russia’s Itatsky, Munai, Arkharo-Boguchansky, and Kangalassky fields and the Mongolian Baganuur field are characterized on the basis of technical analysis, their elemental composition, calorific value, petrographic composition, and the properties of their mineral component. Experimental data regarding the chemical composition of their ash residues permit empirical calculation of temperatures characterizing ash fusibility, the temperature of normal liquid slag removal, and the temperature of slagging onset. The melting temperatures are found to rise with increase in content of the acidic oxides SiO₂ and Al₂O₃ in the ash residues but to fall with increase in the concentration of Fe₂O₃, CaO, and MgO.

中文翻译：

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褐煤的灰分组成

摘要

根据技术分析，元素组成，热值，岩石学组成及其矿物成分的性质，对来自俄罗斯Itatsky，Munai，Arkharo-Boguchansky和Kangalassky油田和蒙古Baganuur油田的5个褐煤样品进行了表征。关于其灰渣残留物化学成分的实验数据可对灰分可熔性特征温度，正常液渣去除温度和起渣温度进行经验计算。发现熔化温度随着灰渣中酸性氧化物SiO ₂和Al ₂ O ₃含量的增加而升高，但随着Fe ₂ O ₃浓度的升高而降低。，CaO和MgO。