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Stability of Hassi-messaoud Asphaltenes in Media of Different Polarities

Kradra Brahma, K. / Bendedouch, D. / Bouhadda, Y. / Bouanani, F. / Bounaceur, B. / Sardi, A.

Abctract The aim of this work is to explore the floculation behavior of asphaltenes (extracted from a deposit recovered from a Hassi-Messaoud oil well) in solution in toluene according to the polarity of the flocculating medium. The flocculation thresholds related to the addition of two flocculating agents of different polarities (n-heptane and acetone) for three asphaltenic concentrations are obtained by means of near infra-red absorption spectrophotometry. The Hildebrand solubility parameters of the flocculated asphaltenic fractions are deduced using the Donnagio method based on the Flory−Huggins theory. The results obtained indicate that the interactions between the flocculated asphaltenic molecules within the toluene/acetone mixture are weaker than those in the toluene/n-heptane mixture.

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Stability of Hassi-messaoud Asphaltenes in Media of Different Polarities

Kradra Brahma, K. / Bendedouch, D. / Bouhadda, Y. / Bouanani, F. / Bounaceur, B. / Sardi, A.

Abctract The aim of this work is to explore the floculation behavior of asphaltenes (extracted from a deposit recovered from a Hassi-Messaoud oil well) in solution in toluene according to the polarity of the flocculating medium. The flocculation thresholds related to the addition of two flocculating agents of different polarities (n-heptane and acetone) for three asphaltenic concentrations are obtained by means of near infra-red absorption spectrophotometry. The Hildebrand solubility parameters of the flocculated asphaltenic fractions are deduced using the Donnagio method based on the Flory−Huggins theory. The results obtained indicate that the interactions between the flocculated asphaltenic molecules within the toluene/acetone mixture are weaker than those in the toluene/n-heptane mixture.

Stability of Hassi-messaoud Asphaltenes in Media of Different Polarities

Kradra Brahma, K. / Bendedouch, D. / Bouhadda, Y. / Bouanani, F. / Bounaceur, B. / Sardi, A.

Abctract The aim of this work is to explore the floculation behavior of asphaltenes (extracted from a deposit recovered from a Hassi-Messaoud oil well) in solution in toluene according to the polarity of the flocculating medium. The flocculation thresholds related to the addition of two flocculating agents of different polarities (n-heptane and acetone) for three asphaltenic concentrations are obtained by means of near infra-red absorption spectrophotometry. The Hildebrand solubility parameters of the flocculated asphaltenic fractions are deduced using the Donnagio method based on the Flory−Huggins theory. The results obtained indicate that the interactions between the flocculated asphaltenic molecules within the toluene/acetone mixture are weaker than those in the toluene/n-heptane mixture.

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Title:

Stability of Hassi-messaoud Asphaltenes in Media of Different Polarities

Contributors:

Kradra Brahma, K. (author) / Bendedouch, D. (author) / Bouhadda, Y. (author) / Bouanani, F. (author) / Bounaceur, B. (author) / Sardi, A. (author)

Published in:

Petroleum Chemistry ; 59 ; 1190-1194

Publication date:

2019-11-01

Size:

5 pages

ISSN:

1555-6239 , 0965-5441

DOI:

https://doi.org/10.1134/S0965544119110094

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

asphaltenes , Hassi-Messaoud , flocculation , close IR spectrophotometry , solubility parameter Chemistry , Industrial Chemistry/Chemical Engineering

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