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Structural Transformations of Heavy Oil Resins and Asphaltenes upon Thermal Cracking

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Abstract

Structural changes in resins and asphaltenes in the course of their separate and combined cracking were studied. Cracking was carried out in a batch reactor at 450°C for 2 h. Data on the mass balance of the cracking process and the composition of liquid products were obtained, and the structural-group analysis of resins and asphaltenes was carried out. It was found that condensation reactions dominated on the cracking of both resins and asphaltenes and their mixture; this was reflected in a high yield of solid condensation products. It was established that the direction of thermal transformations changed in the combined cracking of resins and asphaltenes, as evidenced by a lower yield of solid products and structural changes in the molecules of newly formed resins and asphaltenes.

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Funding

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

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Correspondence to N. G. Voronetskaya or G. S. Pevneva.

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Translated by V. Makhlyarchuk

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Voronetskaya, N.G., Pevneva, G.S. Structural Transformations of Heavy Oil Resins and Asphaltenes upon Thermal Cracking. Solid Fuel Chem. 55, 165–170 (2021). https://doi.org/10.3103/S0361521921030113

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  • DOI: https://doi.org/10.3103/S0361521921030113

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