Factors influencing the pyrolysis of Longkou oil shale, such as nitrogen flow rate, pyrolysis temperature and heating rate were investigated in order to reduce the secondary reactions during pyrolysis process of Longkou oil shale. Oil yield reached the maximum value at a heating rate 15 oC/min up to a final temperature of 550 oC under 0.6L/min nitrogen flow rate for 2-3mm particle size of oil shale. Compared to the shale oil obtained from ASTM D3904-90, the shale oil at optimized condition had a lower IBP and higher distilled mass percent when reaching to the same end temperature, 750 oC. And the pyrolysis gas had a lower organic gas/ inorganic gas ratio. The content of total alkanes and alkenes in the shale oil under optimized condition were 213.97mg/ml and 119.54 mg/ml, which are higher than those from the ASTM D3904-90, bur only the content of C8-C10 alkanes and C8-C11 alkenes are lower.

yrolysis cPharacteristics of Longkou oil shale under optimized condition

249th National Meeting (2015)

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