Origins of thiadiamondoids and diamondoidthiols in petroleum

doi:10.1021/ef'7003333

	Origins of thiadiamondoids and diamondoidthiols in petroleum
	Wei, Zhibin ; Moldowan, J. Michael ; Fago, Fred ; Dahl, Jeremy E.; Cai, Chunfang ; Peters, Kenneth E.
刊名	ENERGY & FUELS
	2007-11-01
卷号	21 期号:6 页码:3431-3436
ISSN号	0887-0624
DOI	10.1021/ef'7003333
文献子类	Article
英文摘要	Thiadiamondoids and diamondoidthiols are orders of magnitude more abundant in oil altered by thermochemical sulfate reduction (TSR) than they are in nonaltered oil. This suggests that thiadiamondoids and diamondoidthiols form during TSR. In order to prove this hypothesis, we perform laboratory TSR experiments on diverse organic compounds using sodium sulfate as an oxidant in the presence of elemental sulfur and deionized water at 200 and 350 degrees C for 48 and 96 h under acidic conditions (pH = 4). Our results show that thiadiamondoids and diamondoidthiols can be created from non-sulfur-containing diamondoids by TSR. It seems likely that diamondoid species are organic precursors of thiadiamondoids and diamondoidthiols. In addition, thiocholesterol yields trace quantities of dimethyl-2-thiaadamantanes when heated with montmorillonite at 200 degrees C, suggesting that these diamondoid derivatives may partly originate by molecular rearrangement of polycyclic sulfides and thiols in the presence of acidic clay minerals since they also exist in crude oil that has not undergone TSR. The present study of these heteroatomic cage compounds improves understanding of TSR and can be used to reduce risk in petroleum exploration.
WOS关键词	THERMOCHEMICAL SULFATE REDUCTION ; SULFUR ; DIAGENESIS ; RESERVOIRS ; BASIN ; RATES
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000251164900056
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/68012]
专题	中国科学院地质与地球物理研究所
通讯作者	Wei, Zhibin
作者单位	1.Stanford Univ, Dept Geol & Environm Sci, Stanford, CA 94305 USA 2.Chinese Acad Prevent Med, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.US Geol Survey, Menlo Pk, CA 94025 USA
推荐引用方式 GB/T 7714	Wei, Zhibin,Moldowan, J. Michael,Fago, Fred,et al. Origins of thiadiamondoids and diamondoidthiols in petroleum[J]. ENERGY & FUELS,2007,21(6):3431-3436.
APA	Wei, Zhibin,Moldowan, J. Michael,Fago, Fred,Dahl, Jeremy E.,Cai, Chunfang,&Peters, Kenneth E..(2007).Origins of thiadiamondoids and diamondoidthiols in petroleum.ENERGY & FUELS,21(6),3431-3436.
MLA	Wei, Zhibin,et al."Origins of thiadiamondoids and diamondoidthiols in petroleum".ENERGY & FUELS 21.6(2007):3431-3436.