Waxes in asphaltenes of crude oils and wax deposits

Composition and molecular mass distribution of n-alkanes in asphaltenes of crude oils of different ages and in wax deposits formed in the borehole equipment were studied. In asphaltenes, n-alkanes from C12 to C60 were detected. The high molecular weight paraffins in asphaltenes would form a crystall...

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Bibliographic Details
Published in:Petroleum science 2016-11, Vol.13 (4), p.737-745
Main Authors: Ganeeva, Yulia M., Yusupova, Tatiana N., Romanov, Gennady V.
Format: Article
Language:English
Subjects:
Alkanes
Asphaltenes
Boreholes
Buckminsterfullerene
C60
Composition
Crude oil
Deposits
Earth and Environmental Science
Earth Sciences
Economics and Management
Energy Policy
Fullerenes
Hydrocarbon composition
Hydrocarbons
Industrial and Production Engineering
Industrial Chemistry/Chemical Engineering
Melting point
Mineral Resources
Molecular weight
Original Paper
Paraffins
Wax deposit
Waxes
Weight
分子质量分布
分配特征
原油沥青质
正构烷烃
蜡沉积
钻孔设备
高分子量
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Summary:Composition and molecular mass distribution of n-alkanes in asphaltenes of crude oils of different ages and in wax deposits formed in the borehole equipment were studied. In asphaltenes, n-alkanes from C12 to C60 were detected. The high molecular weight paraffins in asphaltenes would form a crystalline phase with a melting point of 80–90 ℃. The peculiarities of the redistribution of high molecular paraffin hydrocarbons between oil and the corresponding wax deposit were detected. In the oils, the high molecular weight paraffinic hydrocarbons C50–C60were found, which were not practically detected in the corresponding wax deposits.
ISSN:1672-5107
1995-8226
DOI:10.1007/s12182-016-0111-8