煤液化残渣及其萃取物的热解特性研究

Northwest Coal(2015)

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Abstract
通过热重分析技术,考察了煤液化残渣及其萃取物的热解特性.结果表明,在相同条件下,煤液化沥青(即煤液化残渣萃取物)具有更大的失重率和失重速率.通过比较煤液化残渣、煤液化沥青及萃余物热失重曲线发现,残渣的热失重是由残渣中重质油和沥青质的热解,以及挥发造成的.随着升温速率的增大,煤液化沥青及残渣的初始分解温度、热解最终温度、最大失重速率温度均升高,峰值向高温区的方向移动.同时,为了有利于聚合反应的进行,应当适当降低反应的升温速率.
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