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

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• 作者：M. S. Mullakaev ; G. I. Volkova ; O. M. Gradov
• 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
• 刊名：Theoretical Foundations of Chemical Engineering
• 出版年：2015
• 出版时间：May 2015
• 年：2015
• 卷：49
• 期：3
• 页码：287-296
• 全文大小：685 KB
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• 作者单位：M. S. Mullakaev (1)
  G. I. Volkova (2)
  O. M. Gradov (1)
  
  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia
  2. Institute of Petroleum Chemistry, Siberian Branch, Russian Academy of Sciences, Akademicheskii pr. 3, Tomsk, 634021, Russia
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Industrial Chemistry and Chemical Engineering
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1608-3431

文摘

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.