Structural Characterization of Unfractionated Asphalts by 1H NMR and 13C NMR

被引：23
|
作者：
Betancourt Cardozo, Ferney [1 ]
Avella Moreno, Eliseo [2 ]
Alexander Trujillo, Carlos [2 ]
机构：
[1] Univ Nacl Colombia, Dept Ingn Civil & Agr, Carrera 45 26-85,Codigo Postal 111321, Bogota, Colombia
[2] Univ Nacl Colombia, Dept Quim, Carrera 45 26-85,Codigo Postal 111321, Bogota, Colombia
来源：
ENERGY & FUELS | 2016年 / 30卷 / 04期
关键词：
NUCLEAR-MAGNETIC-RESONANCE; CRUDE-OIL FRACTIONS; PETROLEUM FRACTIONS; HYDROCARBON MIXTURES; CHEMICAL-CHANGES; 1H NMR; SPECTROSCOPY; PARAMETERS; COAL; SPECTROMETRY;
D O I：
10.1021/acs.energyfuels.5b02941
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
An improved methodology for the structural characterization of heavy fractions of petroleum by hydrogen-1 and carbon-13 nuclear magnetic resonance was applied to three fresh and unfractionated asphalts in solution. The results were compared with those generated by two other known characterization methods applied to the same NMR spectra. The comparison revealed inconsistencies in the traditional methods for the structural characterization of this type of materials. The improved methodology can be applied to unfractionated samples, and it provides a more detailed structural characterization of the asphalts than previously obtained. The new method provides a better correlation between physicochemical properties and the chemical structure of the complex mixtures of hydrocarbons.
引用
收藏
页码：2729 / 2740
页数：12
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