The methylation of aromatic nuclei - I: Implications for the geochemical evolution of gas
文献类型：期刊论文
| 作者 | Liu, Yanhong1,2,3; Wu, Yingqin1,2; Xia, Yanqing1,2; Xing, Lantian1,2; Tian, Chuntao1,2; Lei, Tianzhu1,2 |
| 刊名 | INTERNATIONAL JOURNAL OF COAL GEOLOGY
 |
| 出版日期 | 2019-11-01 |
| 卷号 | 215页码:11 |
| 关键词 | Aromatic nuclei Methylation process Natural gas Ratio of isoparaffin to n-alkane delta C-13(methane) |
| ISSN号 | 0166-5162 |
| DOI | 10.1016/j.coal.2019.103302 |
| 英文摘要 | Aromatic hydrocarbons are an important component in crude oil and sediments. Furthermore, the structure of macromolecular organic matter (such as kerogen) is also based on aromatic nuclei. The earlier methylation and later demethylation of various aromatic nuclei would affect the chemical components and carbon isotopes of aromatics as well as saturated hydrocarbons and gaseous hydrocarbons. The scope of the present study was to investigate the role of aromatic nuclei in the formation and geochemical evolution of natural gas in complex geological systems. The use of model compounds could simplify the complex system, and n-tricosane (n-C-23), n-tetracosane (n-C-24), and naphthalene (N) were selected as model compounds for paraffins and aromatic hydrocarbons and subjected to pyrolysis experiments. The results showed that aromatic nuclei had a slight influence on the gas generation without using a catalyst. However, the gaseous components were substantially affected by aromatic nuclei under the catalysis of clay, when the temperature was lower than 400 degrees C. The ratios of isoparaffin to n-alkane of gaseous hydrocarbons were reduced by the aromatic nuclei. As carbon isotopically lighter methyls preferred to combine with the aromatic nuclei, the gas productions were reduced, and there was a C-13 depletion of methane with increasing temperature, which is contrary to the case of paraffin cracking alone. This trend can also be observed in the pyrolysis gases formed from the type II and III kerogens. The macromolecular aromatic nuclei played a similar role with the small aromatic hydrocarbons. These effects would mainly occur in the mature to highly mature stage of the organic matter (the paleo-geothermal temperature is <= 150 degrees C). The above explorative experiments suggested that a large number of aromatic nuclei and their methylation reactions could exert a significant influence on the distributions and the carbon isotopic compositions of gaseous hydrocarbons in the evolution of sedimentary organic matter. This research also provided a new explanation for the carbon isotopic abnormality (the C-13-depleted methane and the increasing delta C-13(2)-delta C-13(1) values) of deep natural gas of the Tarim Basin, in northwest China. |
| WOS关键词 | THERMAL-CRACKING ; ORGANIC-MATTER ; METHANE GENERATION ; NATURAL-GAS ; TARIM BASIN ; OIL ; PYROLYSIS ; MINERALS ; INSIGHTS ; SYSTEM |
| 资助项目 | National Science and Technology Major Project of China[2016ZX05007001-004] ; National Natural Science Foundation of China[41272147] ; National Natural Science Foundation of China[41772147] ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Foundation for Excellent Youth Scholars of NIEER, CAS |
| WOS研究方向 | Energy & Fuels ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000497256800002 |
| 出版者 | ELSEVIER |
| 资助机构 | National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Foundation for Excellent Youth Scholars of NIEER, CAS ; Foundation for Excellent Youth Scholars of NIEER, CAS ; Foundation for Excellent Youth Scholars of NIEER, CAS ; Foundation for Excellent Youth Scholars of NIEER, CAS ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Foundation for Excellent Youth Scholars of NIEER, CAS ; Foundation for Excellent Youth Scholars of NIEER, CAS ; Foundation for Excellent Youth Scholars of NIEER, CAS ; Foundation for Excellent Youth Scholars of NIEER, CAS ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Foundation for Excellent Youth Scholars of NIEER, CAS ; Foundation for Excellent Youth Scholars of NIEER, CAS ; Foundation for Excellent Youth Scholars of NIEER, CAS ; Foundation for Excellent Youth Scholars of NIEER, CAS ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Science and Technology Major Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Opening Fund of the Key Laboratory for Salt Lake Geology and Environment, Qinghai Institute of Salt Lakes ; Foundation for Excellent Youth Scholars of NIEER, CAS ; Foundation for Excellent Youth Scholars of NIEER, CAS ; Foundation for Excellent Youth Scholars of NIEER, CAS ; Foundation for Excellent Youth Scholars of NIEER, CAS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95818]  |
| 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.Chinese Acad Sci, Inst Geol & Geophys, Gansu Prov Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Lanzhou 730000, Gansu, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yanhong,Wu, Yingqin,Xia, Yanqing,et al. The methylation of aromatic nuclei - I: Implications for the geochemical evolution of gas[J]. INTERNATIONAL JOURNAL OF COAL GEOLOGY,2019,215:11. |
| APA | Liu, Yanhong,Wu, Yingqin,Xia, Yanqing,Xing, Lantian,Tian, Chuntao,&Lei, Tianzhu.(2019).The methylation of aromatic nuclei - I: Implications for the geochemical evolution of gas.INTERNATIONAL JOURNAL OF COAL GEOLOGY,215,11. |
| MLA | Liu, Yanhong,et al."The methylation of aromatic nuclei - I: Implications for the geochemical evolution of gas".INTERNATIONAL JOURNAL OF COAL GEOLOGY 215(2019):11. |
入库方式： OAI收割
来源：地质与地球物理研究所
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