炭黑对煤沥青热解缩聚行为的影响  

Effect of carbon black on the pyrolysis condensation of coal-tar pitch

作　　者：许斌[1] 李超[1] 任玉明[1] 申改燕[1] 周燕[1] 魏贤勇[1] 

机构地区：[1]武汉科技大学化学工程与技术学院,湖北武汉430081

出　　处：《武汉科技大学学报》2009年第4期399-402,共4页Journal of Wuhan University of Science and Technology

基　　金：国家"863"计划资助项目(2007AA06Z113);湖北省自然科学基金资助项目(2007ABA251)

摘　　要：通过TG对煤沥青和煤沥青/炭黑复合物热失重过程的研究,分析了两类煤沥青物料的热解缩聚特征,并对煤沥青和煤沥青/炭黑复合物的热解缩聚行为进行了对比。结果表明,煤沥青/炭黑复合物中煤沥青热解挥发过程不同于煤沥青,炭黑的添加使煤沥青易发生缩聚反应,有利于煤沥青稠环芳烃分子缩聚成焦,从而有效地提高了煤沥青的成焦率。The processes of thermal weight loss of coal-tar pitch and pitch/carbon black composites are studied by means of TG. The characteristics of pyrolysis condensation of two kinds of pitch material are analyzed and compared. It is found that the pyrolysis condensation of pitch/carbon black composites is different from that of coal-tar pitch alone. Addition of carbon black is favourable to the condensation reaction of coal-tar pitches and polymerization of condensed aromatics molecules, which results in the enhancement of coking value of coal-tar pitch.

关 键 词：煤沥青 炭黑 TGA 热解缩聚 

分 类 号：TQ522.63[化学工程—煤化学工程]