Characterisation of aromatic hydrocarbons formed from alkane pyrolysis

doi:10.2343/geochemj.2.0521

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

	Characterisation of aromatic hydrocarbons formed from alkane pyrolysis
	Tian, Chuntao 1; Chen, Yongxin 2; Xia, Yanqing 2; Song, Chunhui 1; Ma, Suping 2; Liu, Yanhong 2; Gao, Wenqiang 2
刊名	GEOCHEMICAL JOURNAL
	2018
卷号	52 期号:4 页码:335-345
关键词	Aromatic hydrocarbons alkanes pyrolysis maturity aromatization
ISSN号	0016-7002
DOI	10.2343/geochemj.2.0521
英文摘要	With the aim of improving understanding of aromatic hydrocarbon formation by transformation of alkanes during maturation, the C-23, C-28, C-29, C-31 and C-36 n-alkanes and pristane were separately heated at 350-5008 degrees C in a closed system for 72 h to determine the aromatic hydrocarbon species and their characteristics formed by pyrolysis. Analysis of the obtained pyrolysates using gas chromatography-mass spectrometry showed that pyrolysis of different alkanes formed similar aromatic hydrocarbons with increasing maturity, regardless of whether they were straight chain or isoprenoid. Monoaromatic compounds were preferentially formed first, followed by various dicyclic and polycyclic aromatics. Many common aromatic hydrocarbons were detected in the pyrolysates, and their distribution suggests that alkanes are an important aromatic hydrocarbon source in petroleum formed by high maturity. Some aromatic hydrocarbons that are known to originate from biological precursors could also be formed by pyrolysis, so more attention to sample maturity is required when such compounds are used as source indicators. With increasing temperature, the aromatic hydrocarbons mainly underwent polymerization and desubstitution reactions, resulting in an elevated amount of polyaromatics and fewer substituted aromatic compounds.
资助项目	China National Natural Science Foundation[41372157]
WOS关键词	ORGANIC-MATTER TYPE ; CRUDE OILS ; THERMAL MATURITY ; SOURCE ROCKS ; RECENT SEDIMENTS ; DEPOSITIONAL ENVIRONMENT ; GEOCHEMICAL SIGNIFICANCE ; HYDROUS PYROLYSIS ; HEXANE PYROLYSIS ; HIGH-PRESSURES
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	GEOCHEMICAL SOC JAPAN
WOS记录号	WOS:000441846300005
资助机构	China National Natural Science Foundation ; China National Natural Science Foundation ; China National Natural Science Foundation ; China National Natural Science Foundation
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/88095]
专题	地质与地球物理研究所_兰州油气中心
通讯作者	Xia, Yanqing
作者单位	1.Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Gansu Prov Key Lab Petr Resources Res, Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Tian, Chuntao,Chen, Yongxin,Xia, Yanqing,et al. Characterisation of aromatic hydrocarbons formed from alkane pyrolysis[J]. GEOCHEMICAL JOURNAL,2018,52(4):335-345.
APA	Tian, Chuntao.,Chen, Yongxin.,Xia, Yanqing.,Song, Chunhui.,Ma, Suping.,...&Gao, Wenqiang.(2018).Characterisation of aromatic hydrocarbons formed from alkane pyrolysis.GEOCHEMICAL JOURNAL,52(4),335-345.
MLA	Tian, Chuntao,et al."Characterisation of aromatic hydrocarbons formed from alkane pyrolysis".GEOCHEMICAL JOURNAL 52.4(2018):335-345.