Abstract:

In this paper, the temperature rise characteristics of Huadian oil shale, its semi-coke and mixture were examined in the microwave field.The results showed that oil shale was a poor microwave absorbing material and can not be pyrolyzed while semi-coke produced can be used as microwave absorbent due to its high heat-up rate in the microwave field.The mixture of oil shale and semi-coke can be pyrolyzed by microwave radiation.The pyrolysis in the microwave field was performed and the effect of mixed ratio, microwave power and particle size were discussed.It was found that the more the semi-coke added, the more the oil yield produced.The higher the microwave power, the more the oil yield and gas loss, while the less the semi-coke yield in the same time.The influence of particle size was small on the pyrolysis except the particle size <0.2 mm due to its serious entrainment in the experiment.

Key words:

油页岩, 半焦, 微波, 干馏, 铝甑实验

摘要： 在自行设计的微波干馏装置上研究了桦甸油页岩、半焦及其混合物在微波场中的升温特性。发现油页岩本身是一种微波弱吸收物质，纯油页岩在微波场中升温能力较差；油页岩热解产物半焦在微波场中升温很快，可以作为油页岩微波干馏的微波吸收剂，将油页岩和半焦的混合物放入微波场中能达到良好的热解效果。实验研究了半焦和油页岩的混合比、微波功率、粒径等因素对微波干馏效果的影响，结果发现，随着半焦比例加大，产油率增加，半焦产率降低；在相同时间内，微波功率越大，产油率和气体损失产率越大，半焦产率降低；油页岩粒径对微波热解影响较小，但当粒径小于0.2mm时实验中出现了较严重的夹带现象。

关键词:

油页岩, 半焦, 微波, 干馏, 铝甑实验