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Emulsion inhibiting components in crude oils
Journal article   Peer reviewed

Emulsion inhibiting components in crude oils

B.F. Graham, E.F. May and R.D. Trengove
Energy & Fuels, Vol.22(2), pp.1093-1099
2008
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Abstract

We fractionated a series of West African and West Australian crude oils into the four standard solubility classes: saturates, aromatics, resins, and asphaltenes (SARA). The asphaltene fraction was then separated further into classes we have called binding resins (BR) and residual asphaltenes (RA) using a solvent of near-boiling heptane. The ratio ≡ BR/RA correlates strongly with the tightness of water-in-oil emulsions that these oils formed either in the field or the laboratory. Crucially, only the oil with > 1 did not form a stable emulsion and, for the oils which did, the smaller the value of , the tighter the observed emulsion in terms of its longevity and separation characteristics. Two-dimensional GC-MS was used to analyze the resin and binding resin fractions, which lead to the preliminary identification of the main components.

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Collaboration types
Domestic collaboration
Citation topics
8 Earth Sciences
8.140 Water Resources
8.140.1260 Asphaltenes
Web Of Science research areas
Energy & Fuels
Engineering, Chemical
ESI research areas
Engineering
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