摘要
以2种不同性质的炼焦煤为基础煤,以长焰煤热解萃取产物为改质剂,分别考察了改质剂对2种基础煤的挥发分、黏结指数、奥亚膨胀度等指标的改善结果。萃取产物对瘦煤挥发分的影响大于气煤;随改质剂加入量的增加,气煤的黏结指数缓慢增加,瘦煤的黏结指数显著增加;当改质剂加入量增加到5%时,气煤、瘦煤的软化-固化温度区间分别增大14.4℃、39.2℃。
Taking two coking coals with different properties as basic coal,and the pyrolytic extracts of long flame coal as modifier,the influence of the modifier to the indexes such as volatile matter,caking index and Arnu-Audibert＇s dilatometer of the two basic coals is studied. The result shows that the influence of pyrolytic extracts to the volatile matter of lean coal is higher than that of gas coal; with the increase of modifier,the caking index of gas coal increases slowly,but the caking index of lean coal increases remarkably; and the softening-hardening temperature range of gas coal and lean coal increase by 14. 4℃ and 39. 2℃ respectively.
出处
《燃料与化工》
2016年第1期1-3,11,共4页
Fuel & Chemical Processes
基金
国家自然科学基金重点项目(U1361212)
辽宁省煤化工工程技术中心开放基金(2013-05)
关键词
热解萃取产物
煤的改质
煤的黏结性
Pyrolytic extracts
Modification of coal
Caking property of coal
