Composition of Heavy Oil Resins and Their Effect on the Stability of Asphaltenes

Aspects of the content and distribution of heteroatomic components in resins were studied for the case of heavy oils of the Tatarstan and Samara regions, and aspects of the group-structure composition of the fractions isolated from the resins are indicated. By fractionation of the resin it was possible to estimate the degree to which the content of the heterorganic component affects the flocculation of asphaltenes. Kinetic studies by UV spectroscopy showed that the fraction of high-molecular organonitrogen bases is most efficient in inhibiting the deposition of asphaltenes and surpasses the initial petroleum resins.

Automated summary

The study investigated the content and distribution of heteroatomic components in resins from heavy oils in Tatarstan and Samara regions. The group-structure composition of the isolated fractions from the resins was identified. Fractionation of the resin allowed for estimating the impact of heterorganic component on the flocculation of asphaltenes. Kinetic studies using UV spectroscopy revealed that the fraction of high-molecular organonitrogen bases efficiently inhibited the deposition of asphaltenes.