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The characteristics of free/bound biomarkers released from source rock shown by stepwise Py-GC-MS and thermogravimetric analysis (TGA/DTG)

文献类型：期刊论文

作者Zhang, Ting1,2,3; Wang, Zuodong1,2; Wang, Yongli4; Wei, Zhifu1,2; Li, Xiaobin1,2; Hou, Xiaohuan1,2,3; Sun, Zepeng1,2,3; Wang, Gen1,2; Qian, Yu5
刊名JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
出版日期2019-08-01
卷号179页码:526-538
ISSN号0920-4105
关键词Shales Stepwise Py-GC-MS TGA/DTG Free/bound biomarkers Light hydrocarbons
DOI10.1016/j.petrol.2019.04.060
英文摘要Three organic-rich shales with different types of kerogen (Type I and II1) were conducted to pyrolysis by step, which was performed in three temperature stages based on thermogravimetric analysis (TGA/DTG), to investigate the characteristics of both free and bound biomarkers. Additionally, the free biomarkers of the source rocks were also compared by GC-MS with the flash pyrolyzate in different steps. The pyrolyzate of the first stage (100-250 degrees C) includes n-alkanes, terpanes and steranes were same as the extractable lipids in distribution, suggesting that the free biomarkers can be obtained at the first stage. The pyrolyzate released at the second stage was dominated by n-alkane/n-alkene doublets (C-4-C-29) with a unimodal distribution. A full suite of long chain n-alkanes made its first appearance in the third stage, but the parameters of terpanes and steranes appeared to more immature than their corresponding free counterparts, indicating the bound biomarkers released in the third stage which preserved the information of kerogen at an early and immature stage. The study of light hydrocarbons (C-4-C-13) in three flash pyrolyzate confirmed that the biomarkers in the first stage had a free status, while in the second and third stage, the light hydrocarbons were greatly affected by maturity. The results showed that stepwise pyrolysis is capable of releasing both free and bound biomarkers that can be used in the geochemical characterisation of the source rocks. Importantly, the biomarker parameters at 100-250 degrees C of source rocks flash pyrolyzate can be used as extracts counterparts and avoided tedious pretreatments.
WOS关键词BOUND ALIPHATIC BIOMARKERS ; OIL-SHALE ; LIGHT-HYDROCARBONS ; FLASH PYROLYSIS ; KEROGEN ; CARBON ; HYDROPYROLYSIS ; ASPHALTENES ; PRISTANE ; ORIGIN
资助项目National Natural Science Foundation of China[41772133] ; National Natural Science Foundation of China[41572350] ; National Natural Science Foundation of China[41503049] ; Innovation Project of the Chinese Academy of Sciences[135CCJJ20160523] ; Key Laboratory Project of Gansu Province[135CCJJ20160523] ; Innovation Project of the Chinese Academy of Sciences and equipment function development[2019G106]
WOS研究方向Energy & Fuels ; Engineering
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000470109500043
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovation Project of the Chinese Academy of Sciences ; Innovation Project of the Chinese Academy of Sciences ; Key Laboratory Project of Gansu Province ; Key Laboratory Project of Gansu Province ; Innovation Project of the Chinese Academy of Sciences and equipment function development ; Innovation Project of the Chinese Academy of Sciences and equipment function development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovation Project of the Chinese Academy of Sciences ; Innovation Project of the Chinese Academy of Sciences ; Key Laboratory Project of Gansu Province ; Key Laboratory Project of Gansu Province ; Innovation Project of the Chinese Academy of Sciences and equipment function development ; Innovation Project of the Chinese Academy of Sciences and equipment function development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovation Project of the Chinese Academy of Sciences ; Innovation Project of the Chinese Academy of Sciences ; Key Laboratory Project of Gansu Province ; Key Laboratory Project of Gansu Province ; Innovation Project of the Chinese Academy of Sciences and equipment function development ; Innovation Project of the Chinese Academy of Sciences and equipment function development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovation Project of the Chinese Academy of Sciences ; Innovation Project of the Chinese Academy of Sciences ; Key Laboratory Project of Gansu Province ; Key Laboratory Project of Gansu Province ; Innovation Project of the Chinese Academy of Sciences and equipment function development ; Innovation Project of the Chinese Academy of Sciences and equipment function development
源URL[http://ir.iggcas.ac.cn/handle/132A11/92261]  
专题地质与地球物理研究所_兰州油气中心
通讯作者Wang, Zuodong
作者单位1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China
2.Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China
3.Univ Chinese Acad Sci, Beijing 10049, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
5.Sichuan Univ Sci & Engn, Zigong 643000, Sichuan, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Ting,Wang, Zuodong,Wang, Yongli,et al. The characteristics of free/bound biomarkers released from source rock shown by stepwise Py-GC-MS and thermogravimetric analysis (TGA/DTG)[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2019,179:526-538.
APA Zhang, Ting.,Wang, Zuodong.,Wang, Yongli.,Wei, Zhifu.,Li, Xiaobin.,...&Qian, Yu.(2019).The characteristics of free/bound biomarkers released from source rock shown by stepwise Py-GC-MS and thermogravimetric analysis (TGA/DTG).JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,179,526-538.
MLA Zhang, Ting,et al."The characteristics of free/bound biomarkers released from source rock shown by stepwise Py-GC-MS and thermogravimetric analysis (TGA/DTG)".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 179(2019):526-538.

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来源：地质与地球物理研究所

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