Distribution of high-molecular-weight n-alkanes in paraffinic crude oils and asphaltene-resin-paraffin deposits

被引：0
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作者：
Yu. M. Ganeeva
T. R. Foss
T. N. Yusupova
A. G. Romanov
机构：
[1] Russian Academy of Sciences,Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center
来源：
Petroleum Chemistry | 2010年 / 50卷
关键词：
Differential Scanning Calorimetry; Alkane; Devonian; Differential Scanning Calorimetry Curve; Molecular Weight Distribution;
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学科分类号：
摘要：
Paraffinic and high-paraffin oils and asphaltene-resin-paraffin (ARP) deposits of Samara oblast have been investigated by differential scanning calorimetry (DSC) and GLC techniques. High-paraffin oils have been found to contain n-alkanes with the number of carbon atoms of C15-C60 and higher forming a crystalline phase with the mp ∼30–40°C. The ARP deposits from high-paraffin oils almost do not contain highmolecular-weight n-alkanes with the number of carbon atoms >55. This is due to the peculiarities of the crystallization and cocrystallization processes of high polydispersity n-alkanes in crude oils.
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页码：17 / 22
页数：5
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