An Investigation into the Precipitation of Asphaltene from Maltenes Using Binary Mixtures of N-Paraffin

doi:10.20431/2454-7980.0301006

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2024

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“…The result obtained for the resin content from the filtrate of both single as shown in figure 2 and binary mixtures at varying ratios as shown in table 1 and figure 3 showed high yield of the precipitates (liquid phase) compared to that obtained from the solid precipitated as reported [2,7].…”

Section: Resultsmentioning

confidence: 52%

Reprecipitation of Resin From Crude Oil Maltene Using Single Lower N-Alkane Solvent and Its Binary Mixture

Utin,

Ogali,

Achugasim

2024

JCSN

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This study investigates the reprecipitation of crude oil maltene using lower carbon number solvents and reduced solvent volume. Single and binary n-alkane mixtures were used to induce composition changes in the crude oil. The resulting precipitates are fractionated and analyzed using UV-visible spectroscopy. The resin absorbance content increases with higher carbon numbers; heptane(C7) > hexane (C6) > pentane (C5) in single phased precipitation. In binary mixtures, the total relative absorbance follows the order C6:C7 > C5:C7 > C5:C6. Higher volumes of higher carbon number solvents yielded higher resin content. The lower solvent (C5), binary mixture of the lower solvent (C5:C6) and the highest ratios of the lower solvent mixture are better solvent to precipitate the resin content. Moreso, equal volume binary mixtures are favourable solvent for resin content.

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Section: Resultsmentioning

confidence: 52%