カザフスタン，カリンカラ産オイルシェールの組成分析

Kairbekov, Zhaksyntai K.; Masuda, Naoto; Ohshima, Masaaki; Мылтыкбаева, Ж. К.; Kairbayeva, Nazarke; Yemilyanova, Valentina S.; Kurokawa, Hideki; Miura, Hiroshi

doi:10.1627/jpi.57.192

Cited by 2 publications

(1 citation statement)

References 23 publications

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“…Oil shale, a fine-grained sedimentary rock containing significant amounts of kerogen which can be converted into shale oil and combustible gas through retorting, is regarded as a valuable supplement and alternative to conventional oil, as a source of energy [1]. Up to the present time, oil shale has been used for retorting to yield shale oil [2][3][4][5] and for burning directly as a fuel to generate electricity or heat for many years [6][7][8]. China's oil shale resource has been estimated at about 978 billion tons, which can be converted to about 61 billion tons of shale oil [9].…”

Section: Introductionmentioning

confidence: 99%

The effect of pyrolysis conditions on the composition of Chinese Jimsar shale oil using FT-IR, 1H-NMR and 13C-NMR techniques

Dai¹,

Guo²,

Huang³

et al. 2022

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Fourier transform infrared spectroscopy (FT-IR) and nuclear magnetic resonance (NMR) were used to characterize the functional groups and structural parameters of shale oil obtained from the pyrolysis of Chinese Jimsar oil shale under different process conditions: pyrolysis temperature 480, 500, 520, 550 °C, residence time 10, 20, 30, 40 min and heating rate 2, 5, 8, 10 °C/min. The results show that the main substances in shale oil are aliphatic components, mainly -CH 2 with antisymmetric stretching vibrations. The longest aliphatic chain of shale oil is at the pyrolysis temperature of 520 °C, the residence time of 20 min and the heating rate of 5 °C/min. The relative content of aromatics in shale oil is less than 20%. Di-substitution is the main substitution mode of the benzene ring, accounting for more than 45%. The results also indicate that the relative content of oxygen-containing functional groups (C-O and C=O) is much smaller than that of -CH 2 and -CH 3 , while the relative content of C-O is higher than that of C=O functional groups. The increase of temperature, heating rate and residence time contributes to the formation of aromatic compounds.

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Section: Introductionmentioning

confidence: 99%

The effect of pyrolysis conditions on the composition of Chinese Jimsar shale oil using FT-IR, 1H-NMR and 13C-NMR techniques

Dai¹,

Guo²,

Huang³

et al. 2022

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Experimental Investigation of the Characteristics and Transformation Mechanism of Jimsar Oil Shale and Derived Shale Oil

et al. 2023

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An experimental investigation of the characteristics and transformation mechanism of Jimsar oil shale and derived shale oil was conducted using a solid-state nuclear magnetic resonance spectrometer (13C NMR), Fourier transform infrared spectroscopy (FT-IR), liquid 1H NMR, and gas chromatography-mass spectrometry (GC-MS) techniques. The carbon skeleton structure of Jimsar oil shale is mainly composed of aliphatic carbons (70.5%), mostly containing straight-chain methylene (CH2), and aromatic carbon (29.31%). Derived shale oil is primarily made of aliphatic compounds that are dominated by n-alkanes and alkenes (comprising more than 70%). The nature of the conversion of oil shale to shale oil is the decomposition of aliphatic groups dominated by methylene structures in organic matter. Additionally, as the heating rate is increased, the secondary cracking reactions in shale oil could increase the contents of short-chain alkanes and alkenes, which could then enhance the secondary polymerization reactions that increase the generation of cycloalkanes and aromatic compounds. Shale oil demonstrates a maximum yield value of 6.32%, the largest carbon, hydrogen, and nitrogen contents, and a minimum oxygen content at the pyrolysis heating rate of 5 °C/min.

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カザフスタン，カリンカラ産オイルシェールの組成分析

Cited by 2 publications

References 23 publications

The effect of pyrolysis conditions on the composition of Chinese Jimsar shale oil using FT-IR, 1H-NMR and 13C-NMR techniques

The effect of pyrolysis conditions on the composition of Chinese Jimsar shale oil using FT-IR, 1H-NMR and 13C-NMR techniques

Experimental Investigation of the Characteristics and Transformation Mechanism of Jimsar Oil Shale and Derived Shale Oil

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