Petroleum Science >2012, Issue 4: 532-534 DOI: https://doi.org/10.1007/s12182-012-0239-0
Reaction mechanism and kinetics of pressurizedpyrolysis of Chinese oil shale in the presence of water Open Access
文章信息
作者：FANG Chaohe,LI Shuyuan,MA Guili,WANG Hongyan and HUANG Zhilong1
作者单位：
China University of Petroleum, Changping, Beijing 102249, China 2 Research Institute of Petroleum Exploration and Development-Langfang, Hebei 065007, China;1 China University of Petroleum, Changping, Beijing 102249, China;3 Shenhua Ningxia Coal Industry Group Coal-Chemical Company, Ningxia 951000, China;2 Research Institute of Petroleum Exploration and Development-Langfang, Hebei 065007, China;1 China University of Petroleum, Changping, Beijing 102249, China
投稿时间：2011-11-30
引用方式：Fang, C., Li, S., Ma, G. et al. Pet. Sci. (2012) 9: 532. https://doi.org/10.1007/s12182-012-0239-0
文章摘要
A study of reaction mechanisms and chemical kinetics of pressurized pyrolysis of Chinese
Liushuhe oil shale in the presence of water were conducted using an autoclave for simulating and
modeling in-situ underground thermal degradation. It was found that the oil shale was first pyrolyzed to
form pyrobitumen, shale oil, shale gas and residue, then the pyrobitumen was further pyrolyzed to form
more shale oil, shale gas, and residue. It means that there are two consecutive and parallel reactions.
With increasing temperature, the pyrobitumen yield, as intermediate, first reached a maximum, then
decreased to approximately zero. The kinetics results show that both these reactions are first order. The
activation energy of pyrobitumen formation from oil shale is lower than that of shale oil formation from
pyrobitumen.
Liushuhe oil shale in the presence of water were conducted using an autoclave for simulating and
modeling in-situ underground thermal degradation. It was found that the oil shale was first pyrolyzed to
form pyrobitumen, shale oil, shale gas and residue, then the pyrobitumen was further pyrolyzed to form
more shale oil, shale gas, and residue. It means that there are two consecutive and parallel reactions.
With increasing temperature, the pyrobitumen yield, as intermediate, first reached a maximum, then
decreased to approximately zero. The kinetics results show that both these reactions are first order. The
activation energy of pyrobitumen formation from oil shale is lower than that of shale oil formation from
pyrobitumen.
关键词
-
Oil shale, pyrobitumen, pressurized pyrolysis, in-situ underground retorting, reactionmechanism, chemical kinetics