煤的含硫率对煤中汞的分布特性影响模型研究  

STUDY ON MODEL OF SULFUR CONTENTS ON THE MERCURY DISTRIBUTION CHARACTERISTIC IN COALS

作　　者：高威[1] 刘清才[1] 鹿存房[1] 魏春梅[1] 

机构地区：[1]重庆大学材料科学与工程学院,重庆博士生400044

出　　处：《煤炭转化》2009年第3期68-72,共5页Coal Conversion

基　　金：国家科技支撑计划项目(2007BAC24B03)

摘　　要：通过对全国部分省市(地区)煤田煤样中总硫和汞含量的研究分析,以及对煤中硫与汞的赋存状态、不同成煤时期硫与汞的含量分布进行探究,发现高硫煤中的汞与硫化物关系密切,且与黄铁矿存在密切的伴生关系.结果表明,煤中汞的含量一般为100ng/g～450ng/g,平均含量220ng/g.利用数学统计分析方法和数学软件等对煤样中的总硫与汞含量进行相关性模型研究,探索了煤中总硫与汞含量的数学模型,结果表明,在置信度为0.95条件下(α=0.05),煤样中的汞含量与含硫量存在很好的相关关系.Sulfur and mercury content in coal fields from some regions in China were analyzed. In addition, occurrence mode and the distribution of sulfur and mercury in coal were discussed, most likely occurrences modes of Hg in high-sulfur and high-Hg coals are in solid solution in pyrite. It is concluded that most Hg values in coal samples range from 100 ng/g to 450 ng/g, averaging 220 ng/g. Mathematical model about relation both total sulfur and mercury was gained by mathematical statistical method, the result showed that they had better dependency correlation in all coal samples at a 95 % confidence.

关 键 词：含硫率 汞含量 赋存状态 相关性 

分 类 号：TQ530[化学工程—煤化学工程]