【摘要】 采用升温速率为6.8K/min的热重装置对茂名油页岩非等温热解过程进行了考察。试样粒度<0.075mm(-200目),样层厚度0.6毫米,惰性气—氮气流量100ml/min。获得了茂名页岩热重曲线(TG)、热解失重速率与温度的关系曲线以及转化率与温度的关系曲线。对热重数据的动力学处理表明:茂名油页岩的热分解过程在三个不同的温度区间内可以很好地采用三个一级反应动力学方程予以描述。求取了这三个温区内页岩试样的热解动力学参数,即表观活化能E、指数前因子A和相应的反应速率常数表达式,并对茂名油页岩的热分解机理进行了初步的探讨。更多还原

【Abstract】 The pyrolysis reactions of Maoming oil shale were investigated by thermo gravimetric analyzer with linear heating rate 6.8 K/min; particle size of samples 0.075mm( -200mesh); thickness ot sample layer 0.6mm; flow of inert stream (nit rogen) 100ml/min. The thermogravimetric curve, the relationship of rate of weight loss versus temperature as well as that of conversion versus temperature were obtained. The kinetics treatment of pyrolysis data showed that the pyrolysis reactions of Maoming oil shale can be well described by three kinetic equations of first order reaction in three different temperature regions. The pyrolysis kinetics parameters of oil shale, i. e. the apparent activation energy E, the pre-exponential factor A and the corresponding expressions of rate constants for pyrolysis reactions were found by least square curve fitting of pyrolysis data.更多还原