贫煤与煤沥青共炭化研究  

Study on co-carbonization of lean coal and coal tar pitch

作　　者：任先顺[1] 白永建[1] 杨双凤[1] 许德平[1] 王永刚[1] 

机构地区：[1]中国矿业大学,北京100083

出　　处：《燃料与化工》2010年第2期15-17,共3页Fuel & Chemical Processes

摘　　要：进行了不同配比的煤沥青和贫煤的共炭化研究,研究表明,煤沥青与贫煤共炭化时的相互作用是物理融合和化学相互作用的共同作用。其中物理融合表现在使焦炭界面结合状态改善,化学相互作用表现在煤沥青使贫煤的炭化性能发生变化。随煤沥青配比的增加,配煤黏结性有较大改善,焦炭OTI值增大,ISO值减小。煤沥青通过增大焦炭光学组织各向异性程度,使焦炭的反应性降低,反应后强度提高。The study on co-carbonization of coal tar pitch and lean coal with different blending ratios was conducted. The study showed that interaction of co-carbonization of coal tar pitch and lean coal was the coaction of physical bond and chemical interaction, in which the bond state of coke interface was improved by physical bond, and coal tar pitch varied the carbonization behavior of lean coal through chemical interaction with the increase of the blending ratio of coal tar pitch, the caking property of coal blend was greatly improved, OTI value of coke was increased, while ISO value was reduced. Coal tar pitch reduced coke reactivity and increased coke strength after reaction by means of increasing coke optical anisotropy.

关 键 词：煤沥青 光学显微结构 焦炭反应性 各向异性 

分 类 号：TQ531.9[化学工程—煤化学工程]