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Thermal decomposition of Huadian oil shale. Part 1. Critical organic intermediates

机译:花店油页岩的热分解。第1部分。重要的有机中间体

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摘要

To obtain a deep understanding of the pyrolysis mechanism of oil shale kerogen, critical organic intermediates were firstly prepared by heating Huadian oil shale up to the critical temperature point (~350 ℃), and then analyzed using Gas Chromatograph-Mass Spectrometer (GC-MS), Fourier Transform Infrared Spectrometer (FT-IR), Nuclear Magnetic Resonance Spectrometer (NMR) and X-ray Photoelectron Spectroscopy (XPS), etc. According to the results, there are about 84.3 aliphatic carbons per 100 carbons in the critical organic intermediates, less than that in the kerogen matrix studied previously, showing that the aliphatic carbons will decrease during thermal decomposition from kerogen to the critical organic intermediates. This might be mainly attributed to the breakup of aliphatic carbon chains and the resulting hydrocarbon gas emissions. Meanwhile, aromatic carbon structures are well retained in the critical organic intermediates, resulting in an increase in the aromaticity. In addition, the distributions of some heteroatoms (0, N and S) present in the critical organic intermediates were discussed as well. These results will be important for both the exploration of pyrolysis mechanism of kerogen and the improvement of quality and yield of shale oil.
机译:为了深入了解油页岩干酪根的热解机理,首先通过将华电油页岩加热到临界温度(〜350℃)来制备关键有机中间体,然后使用气相色谱-质谱仪(GC-MS)进行分析。 ),傅立叶变换红外光谱仪(FT-IR),核磁共振谱仪(NMR)和X射线光电子能谱仪(XPS)等。根据结果,关键有机中间体中每100个碳中约有84.3个脂肪族碳,比以前研究的干酪根基质中的少,表明脂族碳在从干酪根热分解为关键有机中间体的过程中会减少。这可能主要归因于脂肪族碳链的断裂以及由此产生的碳氢化合物气体排放。同时,芳族碳结构很好地保留在关键有机中间体中,导致芳族性的增加。此外,还讨论了关键有机中间体中存在的一些杂原子(0,N和S)的分布。这些结果对探索干酪根的热解机理以及提高页岩油的质量和产量均具有重要意义。

著录项

  • 来源
    《Fuel》 |2014年第4期|109-116|共8页
  • 作者单位

    Institute of Thermal Energy Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China;

    Institute of Thermal Energy Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China;

    Institute of Thermal Energy Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China;

    Institute of Thermal Energy Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Oil shale; Kerogen; Critical intermediates; Thermal decomposition;

    机译:油页岩;干酪根;关键中间体热分解;

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