INFLUENCE OF SOLVENT AROMATICITY ON ASPHALTENE STABILITY

Petroleum Processing and Petrochemicals ›› 2019, Vol. 50 ›› Issue (12): 51-55.

INFLUENCE OF SOLVENT AROMATICITY ON ASPHALTENE STABILITY

Received:2019-03-26 Revised:2019-05-29 Online:2019-12-12 Published:2019-12-24
Contact: Yang SHI E-mail:shiyang2011june@126.com
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Abstract

Abstract: The relationship of solvent aromaticity and asphaltene stability of Saudi light AR in RICP technology was studied by Flory-Huggins model and the aromaticity of the solvent was correlated with the solubility parameter. The results proved the availability of Flory-Huggins model for measuring asphaltene stability in residue. The aspaltene stability increased with the increase of solvent/AR ratio. The aromaticity could be evaluated by solubility parameter. The solvent with higher density and lower molar ratio of H/C possessed higher solubility parameter and is beneficial to asphaltene stability.

Key words: solubility parameter, aromaticity, Flory-Huggins model, asphaltene stability.

CLC Number:

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