Aggregation of asphaltenes in the presence of dispersant S5A

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• 作者：E. V. Maltseva ; A. M. Gorshkov ; N. V. Yudina ; Yu. V. Loskutova…
• 关键词：high ; viscosity oil ; aggregation ; asphaltenes ; toluene ; dispersant ; dispersion ; photon correlation spectroscopy
• 刊名：Petroleum Chemistry
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：57
• 期：1
• 页码：48-53
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Industrial Chemistry/Chemical Engineering;
• 出版者：Pleiades Publishing
• ISSN：1555-6239
• 卷排序：57

文摘

Aggregation of asphaltenes over time in the presence of dispersant S5A has been studied using photon correlation spectroscopy. The addition of the dispersant to toluene solutions of asphaltenes decreases the size of the aggregates, stabilizes their growth, and reduces the rate of aggregation for a considerably long time. The growth stabilization is achieved at the asphaltenes to dispersant ratio of 0.2–4.