| 光谱学与光谱分析 |
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| Study on Components in Shengli Viscous Crude Oil by FTIR and UV-Vis Spectroscopy |
| GUAN Run-ling,ZHU Hong* |
| Institute of Chemistry, School of Science, Beijing Jiaotong University, Beijing 100044, China |
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Abstract The asphaltenes and resins in the Shengli viscous crude oil were studied by FTIR, UV-Vis spectrophotometry and synchronous fluorescence spectrometry in order to find out the polarity and the distribution of the number of the aromatic ring in the asphaltenes and resins. The results of FTIR spectrum showed that the molecules of the asphaltene and resin include hydroxy, amido, carboxyl and carbonyl, all of which can make up hydrogen bonds. This accounts for that there is the strong hydrongen bond interaction between the molecules of asphaltenes and those of resins. The structures of resins and asphaltenes were studied by synthetic analysis of the UV absorption spectrum and synchronous fluorescence spectrometry of asphaltenes and resins and by comparison with the model compounds. The results show that the aromatic sheet is the basic unit of the asphaltene and resin. The structures of resins and asphaltenes have similarity. The conjugated aromatic rings in the unit sheet are generally three rings and four rings, whose connection is linear order, namely cata-condenesed. The difference between asphaltenes and resins is that resins have generally less than five aromatic rings in conjugated aromatic unit, while asphaltenes have more than five aromatic rings. The asphaltenes have more conjugated aromatic units than the resins and their aromatic rings are plane order, namely peri -condensed approximate structure model for resins and asphaltenes was obtained by experiment.
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Received: 2006-08-02
Accepted: 2006-11-06
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Corresponding Authors:
ZHU Hong
E-mail: zhuho128@263-net
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| Cite this article: |
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GUAN Run-ling,ZHU Hong. Study on Components in Shengli Viscous Crude Oil by FTIR and UV-Vis Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(11): 2270-2274.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2007/V27/I11/2270 |
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