Effect of ultrasound on the viscosity-temperature properties of crude oils of various compositions

被引：33
|
作者：
Mullakaev, M. S. [1 ]
Volkova, G. I. [2 ]
Gradov, O. M. [1 ]
机构：
[1] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia
[2] Russian Acad Sci, Inst Petr Chem, Siberian Branch, Tomsk 634021, Russia
来源：
THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING | 2015年 / 49卷 / 03期
关键词：
ultrasound; ultrasonication; ultrasonic treatment; crude oil; petroleum disperse system; asphaltenes; paraffins; shear stress; shear rate; dynamic viscosity; effective viscosity; pour point; associates;
D O I：
10.1134/S0040579515030094
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The effect of ultrasonic treatment on the viscosity-temperature properties of crude oils of various component compositions has been studied. The efficiency of ultrasonication depends on the group composition of oil and treatment time. The ultrasonic treatment of low-paraffinic oils with a high tar and asphaltene content leads to a substantial decrease in viscosity and the pour point, and the efficiency of ultrasonication increases with an increase in the treatment time. For crude oils with a high n-alkane content, ultrasonic treatment is not effective, which is due to the intensification of crystallization of high-molecular n-alkanes. Calculations that evaluate the effect of ultrasonic treatment on variations in the viscosity of oils are performed based on the fatigue mechanism, which have shown that experimental data are in agreement with the calculated values.
引用
收藏
页码：287 / 296
页数：10
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