An Experimental Study of the Asphaltene Precipitation Inhibition Using Vitamin E and A Palmitate

Articles in Press

Document Type : Original Article

Authors

1 faculty of chemical engineering, urmia university of technology, urmia

2 faculty of chemical engineering, urmia university of tecgnology, urmia

3 faculty of chemistry, urmia university of technology, urmia

10.22034/ijche.2024.419344.1356

Abstract

In this study, for the first time, the effect of vitamin E and vitamin A palmitate on the asphaltene precipitation inhibition was investigated. These compounds can be used as an option in the asphaltene stabilization due to their amphiphilic structure with a polar head and a long alkyl chain. After the addition of vitamin A palmitate and vitamin E in different concentrations to the asphaltene in toluene solution, precipitation tests were performed using normal heptane. According to the results, the phenolic structure and OH functional groups of vitamin E form π-π and hydrogen bonds with polar parts and polyaromatic core of the asphaltene which results in the inhibition of asphaltene. While vitamin A palmitate was recognized as an asphaltene precipitation agent due to its non-polar structure. The inhibition effect of the additive depends on the type of asphaltene.The results indicate that an increase in the asphaltene aromaticity increases the π-π interaction between vitamin E and asphaltene which increases the asphaltene stability.

Keywords

Main Subjects

Iranian Chemical Engineering Journal

Articles in Press, Accepted Manuscript
Available Online from 24 February 2024

Files

Share

How to cite

Statistics