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
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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. |
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