柳树河油页岩微波干燥及其对热解特性的影响

在对家用微波炉改造基础上搭建了微波干燥实验台，研究了柳树河油页岩微波干燥特性及对热解特性的影响。结果表明，微波干燥所需的时间为传统干燥所需时间的20%；微波干燥速率要明显大于传统干燥速率；Page模型适用于描写柳树河油页岩微波干燥过程。微波干燥的油页岩同热风干燥后及原样油页岩的热解活化能随转化率的变化曲线基本一致，整体呈先上升后下降的趋势，在转化率为0.7时达到最大值；热解活化能在80~200 kJ/mol变动；微波干燥油页岩热解反应有机质分解段的活化能增加。

Microwave drying of Liushuhe oil shale and its effect on pyrolysis characteristics

Drying pretreatment plays an important role in the use of oil shale. Microwave drying is a rapid, efficient and energy-saving method. A microwave drying experiment system was set up by remolding the household microwave oven, by which the microwave drying characters and the influence on the pyrolysis characteristic were investigated. The result shows that the time needed for microwave drying is about 20% of the one for traditional drying, and the rate of microwave drying is much higher than that of traditional drying. The Page model is suitable for describing the process of Liushuhe oil shale microwave drying. There is no difference in the changing curves of the pyrolysis activation energy with conversion for the microwave drying oil shale, hot-air drying oil shale and the original one. The trend of the curve first rises, then falls, and at x≈0.7 appears the maximum value. The activation energy changes between 80 kJ/mol and 200kJ/mol. At the same time, the activation energy of organic matter decomposition for the microwave drying oil shale pyrolysis is increased.