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Effect of Dicumyl Peroxide on Changes in the Molecular Structure of Asphaltenes in the Course of Cracking of High-Sulfur Tars

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Abstract

The results of a study of asphaltenes isolated from liquid cracking products (at a temperature of 500°C) of high-sulfur tars with an additive of dicumyl peroxide are presented. Characteristic changes in the composition of cracking products depending on the amount of the additive were found. Changes in the structural-group parameters of tar asphaltenes in the course of cracking were determined using 1H NMR-spectroscopic data, elemental composition, and molecular weight measurements. Asphaltene molecules became more condensed, and they were characterized by an increased concentration of aromatic fragments and a decrease in the number of naphthenic units and the length of aliphatic structures.

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Funding

This study was funded by the Ministry of Science and Higher Education of the Russian Federation and carried out within the framework of a state contract at the Institute of Petroleum Chemistry, Siberian Branch, Russian Academy of Sciences.

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Authors and Affiliations

  1. Institute of Petroleum Chemistry, Siberian Branch, Russian Academy of Sciences, 634055, Tomsk, Russia

    A. V. Goncharov & E. B. Krivtsov

  2. National Research Tomsk State University, 634050, Tomsk, Russia

    S. S. Yurlov

Authors
  1. A. V. Goncharov
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  2. E. B. Krivtsov
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  3. S. S. Yurlov
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Corresponding authors

Correspondence to A. V. Goncharov, E. B. Krivtsov or S. S. Yurlov.

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The authors declare that they have no conflicts of interest.

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Translated by V. Makhlyarchuk

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Goncharov, A.V., Krivtsov, E.B. & Yurlov, S.S. Effect of Dicumyl Peroxide on Changes in the Molecular Structure of Asphaltenes in the Course of Cracking of High-Sulfur Tars. Solid Fuel Chem. 56, 138–144 (2022). https://doi.org/10.3103/S0361521922020021

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  • DOI: https://doi.org/10.3103/S0361521922020021

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