| 太西煤中有害元素在洗选过程中的迁移行为与机理 |
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| 引用本文： | 秦勇,王文峰,宋党育.太西煤中有害元素在洗选过程中的迁移行为与机理[J].燃料化学学报,2002,30(2):147-150. |
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| 作者姓名： | 秦勇 王文峰 宋党育 |
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| 作者单位： | 中国矿业大学,资源与地球科学学院,江苏,徐州,221008 |
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| 基金项目： | 中国高校博士点基金 (2 0 0 10 2 90 0 14 )，中国煤田地质总局重点科学技术项目 (7F0 2 5 7)~~ |
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| 摘 要： | 通过对太西原煤及洗选产物样品中19种有害元素的系统测试，分析了煤中有害元素在洗选过程中的迁移行为，初步讨论了其迁移机理，结果表明，有害微量元素As,Bs,Se,Co,Sb,Mo,Pb,Br在太西原煤中明显富集，但洗选后得到大程度的脱除，大粒精煤的洁净度最高，对环境的危害性相对较小，绝大多数有害元素在煤泥中相对富集，煤泥不适宜于用做燃料，煤中有害元素的迁移行为，与元素赋存状态，显微组分种类与含量，煤中矿物结构等多元因素有关。
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| 关 键 词： | 太西煤 有害元素 赋存状态 迁移 机理 |
| 文章编号： | 0253-2409(2002)02-0147-04 |
| 修稿时间： | 2001年11月5日 |
MIGRATING BEHAVIOR AND MECHANISM OF DELETERIOUS ELEMENTS IN TAIXI COALS DURING CLEANING PROCESS |
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| QIN Yong,WANG Wen feng,SONG Dang yu.MIGRATING BEHAVIOR AND MECHANISM OF DELETERIOUS ELEMENTS IN TAIXI COALS DURING CLEANING PROCESS[J].Journal of Fuel Chemistry and Technology,2002,30(2):147-150. |
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| Authors: | QIN Yong WANG Wen feng SONG Dang yu |
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| Abstract: | Based upon the systematic analyses of the 19 elements in Taixi coal and its cleaned samples, the migrating behaviors during cleaning process were determined and the migrating mechanism was discussed The results showed that: (1) the trace deleterious elements As, Sb, Se, Co, Sb, Mo, Pb and Br are obviously enriched in Taixi raw coal samples, but most of them could be removed by washing; (2) the cleanabilty of the cleaned large grade coal is the best so that it is favorable to the environment; (3) the most of the deleterious elements might be enriched in the coal slime after washing so that the slime is not feasible to be used as fuel; (4) the migrating behaviors of the deleterious elements in coals could be derived from the integrative effect of some factors such as the element occurrence, maceral type and content and mineral structure in coals |
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| Keywords: | Taixi coal deleterious element occurrence migration mechanism |
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