摘要
通过改变试样量和升温速率,利用热解重量分析仪研究精制沥青的热解过程,为沥青的聚合和炭化过程的控制提供依据。研究发现,适当增加试样量,可以提高热分析的准确性;精制沥青进行聚合的温度要介于主要热解温度和次要热解温度之间;同时,为了有利于聚合反应的进行并提高收率,应当适当降低反应的升温速率。
By using TGA the pyrolysis process of refined pitch was studied with different sample weights and heating rates. The results establish foundations for controlling polymerization and carbonization process of refined coal：tar pitch. The proper quantity of pitch may enhance the accuracy of thermal analysis. The polymerization temperature of pitch is between the temperature of primary pyrolysis and that of secondary pyrolysis. Lower heating rate is helpful for polymerization reaction to improve yield.
出处
《煤化工》
CAS
2007年第3期36-37,40,共3页
Coal Chemical Industry
关键词
TG
煤沥青
热解过程
TG, coal-tar pitch, pyrolysis process
