摘要
通过对我国不同地区203个煤样与95个岩样中20～55种元素进行测试和研究,将煤和围岩中伴生元素划分出“原生型”、“叠加型”、“流失型”、“再生型”及“复合型”等五种成因分布类型;揭示出煤中49种元素与煤岩组分和煤化程度的成生联系规律。在此基础上,发现了煤中毒性元素和离子的水可溶性大都与煤化程度有关;进一步研究了元素在燃煤过程中的动态规律,所获得的元素平衡率的中位数统计结果,是计算燃煤毒性元素排放量和建立有关模型的重要数据,并依此建立了煤中伴生元素在燃烧过程中的“动态序列模型”。
Twenty to fifty five associated elements in 203 coal samples and 95 country rock samples all over China were tested. The associated elements in coals and rock were classified into five genetic types. They are 'Original type' , 'Added-in type' , 'Washed-out type' , 'Reconstructive type' and 'Complexed type' . The rules for forming 49 elements in coal, macerals, and coalification degree were studied. Based on which, it was found that water-solubility of most toxic elements or ions were relevant to coalification degree. The dynamic behavior of the associated elements in coal combustion was further studied. The median mass balance ratio of the elements obtained in statistics, was important to calculation of the discharge amount of toxic elements in coal combustion, And a 'Trend Order Model' of the associated elements in combustion was established.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1991年第1期64-72,共9页
Journal of China Coal Society
关键词
煤
伴生元素
聚集
扩散
associated elements in coal
genetic distribution type
occurrence regularities
water-solubility of element
'Trend Order Model'
