小分子化合物对神华煤结构组成和热行为的影响  

Small molecule compounds have an effect on structure/composition and the thermal behavior of shenhua coal

作　　者：王迎春[1] 凌开成[1] 申峻[1] 薛永兵[1] 

机构地区：[1]太原科技大学,山西太原030021

出　　处：《天津化工》2014年第6期9-12,共4页Tianjin Chemical Industry

基　　金：国家重点基础研究发展规划(973)项目(2004CB217602);国家自然科学基金(20776094);山西省自然科学基金(2009011010-2)

摘　　要：小分子化合物是通过二硫化碳、四氢呋喃、甲醇三种溶剂对神华煤进行逐级索氏抽提获得的。利用红外光谱和热重分析分别对原煤和抽掉小分子化合物后的残煤进行测试,可知小分子化合物被抽出后,煤的结构组成及热行为均发生了变化,残煤的脂肪烃和环烷烃基团明显减少,热失重速率降低,最大失重温度向高温段移动。Small molecule compounds was obtained by carbon disulfide, tetrahydrofuran, methanol three kinds of solvents for shenhua coal by soxhlet extraction. Using infrared spectroscopy and thermogravimetric analysis of coal and residual coal after removed the small molecular compound test, After mall molecular compound is out,structure and thermal behavior of the coal are changed, the residual coal fatty hydrocarbon and naphthene groups significantly decreased, thermal weight loss rate reduced, the maximum loss weight temperature move to the high temperature period.

关 键 词：煤 小分子化合物 红外光谱 热重分析 

分 类 号：TQ530[化学工程—煤化学工程]