Pyrolysis characteristics analysis of Chang-7 oil shale using thermal analysis and pyrolysis-gas chromatograph-mass spectrometry

doi:10.1177/0144598717744066

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 兰州油气中心

	Pyrolysis characteristics analysis of Chang-7 oil shale using thermal analysis and pyrolysis-gas chromatograph-mass spectrometry
	Ma, Yu 1,2; Zhou, Shixin 1; Li, Jing 1; Li, Yuanju 1,2; Chen, Kefei 1,2; Zhang, Yuhong 1,2; Fu, Deliang 3
刊名	ENERGY EXPLORATION & EXPLOITATION
	2018-09-01
卷号	36 期号:5 页码:1006-1021
关键词	Pyrolysis oil shale thermal analysis Ordos Basin nonisothermal kinetics
ISSN号	0144-5987
DOI	10.1177/0144598717744066
英文摘要	There are vast resources of oil shale in the Chang-7 section of the Upper Triasic Yanchang Formation, Ordos Basin, China. They would provide secure access to transportation fuels, if utilized in an effective, economic and environmental manner. A Chang-7 oil shale sample containing pyrite has been pyrolysed in a thermogravimetric analyzer at constant heating rates of 5, 10, 20 degrees C/min up to 1150 degrees C with nitrogen as purge gas. Meanwhile, the pyrolysis-gas chromatographmass spectrometry experiments were performed on parallel samples of Chang-7 oil shale sample at 20 degrees C/min in the four temperature sections, ranging from 100 to 700 degrees C to understand the decomposition mechanism. The initial decomposition temperature and the final decomposition temperature of hydrocarbonaceous material were about 367 degrees C and 521 degrees C (average values), respectively, which raised with the increase of heating rate. The decomposition of pyrite began to take place over 500 degrees C, and the pyrolysates involving sulfur compounds are harmful to the environment and corrode the equipment. Thus, we recommended that the final temperature of Chang-7 oil shale pyrolysis was best not to exceed 550 degrees C considering the heating rate to avoid environmental pollution and damage of the instruments. Chang-7 oil shale exhibited a single stage decomposition in the range of about 367-521 degrees C, representing the rearrangement of kerogen molecules in the temperature range of 100-350 degrees C. The activation energies of kerogen decomposition were calculated using Coats-Redfern method at different heating rate. We found that both activation energy and pre-exponential factor increased with an increasing heating rate. Finally, the DTA curves of Chang-7 oil shale verified the reliability of the calculated activation energies.
WOS关键词	KINETIC-MODELS ; HEATING RATE ; GENERATION ; COMBUSTION ; MS
WOS研究方向	Energy & Fuels
语种	英语
出版者	SAGE PUBLICATIONS INC
WOS记录号	WOS:000443306200002
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/88465]
专题	地质与地球物理研究所_兰州油气中心
通讯作者	Zhou, Shixin
作者单位	1.Inst Geol & Geophys, Key Lab Petr Resources Res, Key Lab Petr Resources, Lanzhou, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Minist Land & Resources, Key Lab Coal Resources Explorat & Comprehens Util, Xian, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Ma, Yu,Zhou, Shixin,Li, Jing,et al. Pyrolysis characteristics analysis of Chang-7 oil shale using thermal analysis and pyrolysis-gas chromatograph-mass spectrometry[J]. ENERGY EXPLORATION & EXPLOITATION,2018,36(5):1006-1021.
APA	Ma, Yu.,Zhou, Shixin.,Li, Jing.,Li, Yuanju.,Chen, Kefei.,...&Fu, Deliang.(2018).Pyrolysis characteristics analysis of Chang-7 oil shale using thermal analysis and pyrolysis-gas chromatograph-mass spectrometry.ENERGY EXPLORATION & EXPLOITATION,36(5),1006-1021.
MLA	Ma, Yu,et al."Pyrolysis characteristics analysis of Chang-7 oil shale using thermal analysis and pyrolysis-gas chromatograph-mass spectrometry".ENERGY EXPLORATION & EXPLOITATION 36.5(2018):1006-1021.