Aggregation of asphaltenes in the presence of dispersant S5A

E. V. Maltseva, A. M. Gorshkov, N. V. Yudina, Yu V. Loskutova, L. V. Chekantseva, L. V. Shishmina

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Aggregation of asphaltenes over time in the presence of dispersant S5A has been studied using photon correlation spectroscopy. The addition of the dispersant to toluene solutions of asphaltenes decreases the size of the aggregates, stabilizes their growth, and reduces the rate of aggregation for a considerably long time. The growth stabilization is achieved at the asphaltenes to dispersant ratio of 0.2–4.

Original languageEnglish
Pages (from-to)48-53
Number of pages6
JournalPetroleum Chemistry
Issue number1
Publication statusPublished - 1 Jan 2017


  • aggregation
  • asphaltenes
  • dispersant
  • dispersion
  • high-viscosity oil
  • photon correlation spectroscopy
  • toluene

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Geochemistry and Petrology

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