程小爱,坚一明,Inamullah Mian,钟梅,刘景梅

• 1:新疆大学化学与化工学院煤炭清洁转换与化工过程自治区重点实验室

摘要(Abstract)：

工业分析和元素分析等传统的煤的基本分析很难与焦煤的特征参数(如最大流动度和最大膨胀度等)建立很好的相关性.所以,本文提出一种新型的煤的热溶萃取法,通过萃取物的收率及性质来预测焦煤的基本特征参数.选取了11种强粘结性和弱粘结性煤,采用热溶萃取法将其分为三种主要组分:低分子量萃取物、高分子量萃取物、萃取残渣.结果表明,不同煤种的三组分收率相差较大,但是不同煤中获得的同一组分性质非常相似.通过对原煤及其各萃取产物的工业分析、元素分析、热解特性分析、热塑性分析及分子量分布分析等详细表征,对两者的性质建立较深入的理解.然后通过数学模拟,获得了三组分收率与焦煤基本特征参数(最大流动度和最大膨胀度)的相关性方程,相关系数分别达到0.79和0.94.可见,焦煤的热溶萃取产物收率与其特征参数有较好的相关性.所以,本文提出的热溶萃取法来预测焦煤的基本特征参数是可行的.

关键词(KeyWords)： 热溶萃取;焦煤;最大流动度;最大膨胀度

Abstract:

Keywords:

基金项目(Foundation): Project supported by the National Natural Science Foundation of China(21776109,U1510119)

作者(Author): 程小爱,坚一明,Inamullah Mian,钟梅,刘景梅

DOI: 10.13568/j.cnki.651094.2018.04.006

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