9Wang Z J, Deng S H, Gu Q, et al. Pyrolysis Kinetic Study of Huadian Oil Shale, Spent Oil Shale and Their Mixtures by Thermogravimetric Analysis [J]. Fuel Process. Technol., 2013, 110: 103-108.
10Williams P T, Ahmad N, Influence of Process Conditions on the Pyrolysis of Pakistani Oil Shales [J]. Fuel, 1999, 78(6): 653-662.