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在升温速率为2.22K/min～12.34K/min的范围内考察了抚顺页岩的热分解过程。按照一级反应动力学模型,分别采用积分法和微分法求算了不同升温速率下的热分解动力学参数,结果表明:在主要热解阶段,抚顺页岩的表观活化能波动于35.1kcal/mol(积分法)及38.7kcal/mol(微分法)上下,升温速率对动力学参数未见有明显的规律性影响,但升温速率的增加使得转化率曲线及热解产物挥发速率曲线出现显著的变化,本文扼要地讨论了引起转化率曲线及挥发速率曲线变化的原因。
The thermal decomposition of the Fushun shale was investigated at a heating rate of 2.22 K / min ~ 12.34 K / min. According to the first-order reaction kinetic model, the thermal decomposition kinetic parameters at different heating rates were calculated by integral method and differential method respectively. The results showed that the apparent activation energy of Fushun shale fluctuated at 35.1kcal / mol (integral method) and 38.7 kcal / mol (differential method), the heating rate has no obvious regularity on kinetic parameters, but the increase of heating rate makes the conversion rate curve and pyrolysis product volatilization rate curve appear significant This article briefly discusses the reasons that lead to the change of the conversion rate curve and the volatilization rate curve.