Role of Vanadylporphyrins in the Flocculation and Sedimentation of Asphaltenes of Heavy Oils with High Vanadium Content

被引：22
|
作者：
Borisova, Yulia Yurevna [1 ]
Tazeeva, Elvira Gabidullovna [1 ]
Mironov, Nikolay Alexandrovich [1 ]
Borisov, Dmitry Nikolaevich [1 ]
Yakubova, Svetlana Gabidullinovna [1 ]
Abilova, Guzalia Rashidovna [1 ]
Sinyashin, Kirill Olegovich [1 ]
Yakubov, Makhmut Renatovich [1 ]
机构：
[1] Russian Acad Sci, AE Arbuzov Inst Organ & Phys Chem, Kazan Sci Ctr, Arbuzov St 8, Kazan 420088, Russia
来源：
ENERGY & FUELS | 2017年 / 31卷 / 12期
基金：
俄罗斯科学基金会;
关键词：
CRUDE-OIL; PRECIPITATION; PORPHYRINS; NICKEL; SEPARATION; RESINS; ONSET; PETROPORPHYRINS; IDENTIFICATION; SPECTROSCOPY;
D O I：
10.1021/acs.energyfuels.7b02544
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：
Extraction by N,N-dimethylformamide with further column chromatography allowed obtaining concentrate of vanadylporphyrins from asphaltenes of heavy sulfurous oils with high vanadium content. The prevailing types of vanadylporphyrins, their ratio, and molecular mass distribution were determined. The influence of obtained vanadylporphyrin concentrates on the stability of asphaltenes in the system "solvent/precipitator" was investigated. Kinetic studies using UV-vis spectroscopy have revealed that an increase in the content of vanadylporphyrins in asphaltenes leads to acceleration of their deposition from solution and destabilization of colloidal systems.
引用
收藏
页码：13382 / 13391
页数：10
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