Comparative analysis of composition and solubility of asphaltes from heavy oils of different oil fields

被引：4
作者：
Milordov, Dmitry, V [1 ]
Abilova, Guzalia R. [1 ]
Yakubova, Svetlana G. [1 ]
Tazeeva, Elvira G. [1 ]
Manaure, Daniel A. [2 ,3 ]
机构：
[1] Arbuzov Inst Organ & Phys Chem, Kazan, Russia
[2] Ufa State Aviat Tech Univ, Lab Oil Field Chem, Ufa, The Republic Of, Russia
[3] Venezuelan Inst Sci Res, San Antonio De Los Altos, Venezuela
来源：
PETROLEUM SCIENCE AND TECHNOLOGY | 2020年 / 38卷 / 04期
基金：
俄罗斯科学基金会;
关键词：
asphaltene stability; asphaltene solubility; heavy oil; vanadium; vanadyl porphyrins; CRUDE-OIL; PETROLEUM; STABILITY; VANADIUM; RESINS;
D O I：
10.1080/10916466.2019.1702684
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：
Composition and solubility of asphaltenes from various oil fields have been compared. The structural group abundance in the asphaltenes have been determined according to Fourier transform infrared spectra, while the contents of sulfur, vanadium, nickel, vanadyl complexes, and free stable radicals has been evaluated using various methods. The solubility of asphaltenes in the n-heptane-toluene system has been evaluated by spectrophotometric kinetic analysis. It has been determined that the relative content of condensed aromatic structures and carbonyl groups, as well as sulfur-containing structures and vanadyl complexes affect to various extents the solubility of asphaltenes. Effect of the composition of asphaltenes on their solubility is different in the case of conventional and heavy oils.
引用
收藏
页码：405 / 410
页数：6
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