TY - GEN
T1 - Structural parameters of resins and asphaltenes of natural asphaltite and products of its conversion in supercritical water
AU - Antipenko, Vladimir R.
AU - Fedyaeva, Oxana N.
AU - Grinko, Andrey A.
AU - Vostrikov, Anatoly A.
N1 - Funding Information:
This work was performed as part of a state task for the Institute of Petroleum Chemistry, Siberian Branch, Russian Academy of Sciences (project V.46.2.2, reg. no. of the research, development, and engineering works AAAA-A17-117030310199-1) and Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences (project III.18.2.1, reg. no. of the research, development, and engineering works AAAA-A17-117030910025-7) as well as part of the Tomsk Polytechnic University Competitiveness Enhancement Program grant, Project Number #CEP-SESE-299\2019 supported by the Ministry of Science and Higher Education.
Publisher Copyright:
© 2020 American Institute of Physics Inc.. All rights reserved.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/12/14
Y1 - 2020/12/14
N2 - The structural group characteristics of resins and asphaltenes, isolated from high-sulfur natural asphaltite of the Ivanovskoe oilfield in Orenburg oblast and the liquid products of its conversion in a flow of supercritical water (SCW) at 400°C and 30 MPa with and without admixture of zinc or aluminum, have been investigated. It has been shown that as a result of SCW treatment, the molecular weight of the resins and asphaltenes decreases two- to fivefold in comparison with the components of the initial asphaltite. This is determined by a decrease in the number of structural blocks in the molecules which become more compact due to the decrease both in the number of rings, predominantly naphthenic ones, in the blocks and in the number of carbon atoms in the aliphatic substituents. The fraction of aromatic carbon atoms substantially increases, and the degree of substitution of the aromatic nucleus decreases in the resins and asphaltenes isolated from the conversion products. The differences in the structural chemical characteristics of the resins and asphaltenes manifest themselves to a greater extent in the case the metal admixtures.
AB - The structural group characteristics of resins and asphaltenes, isolated from high-sulfur natural asphaltite of the Ivanovskoe oilfield in Orenburg oblast and the liquid products of its conversion in a flow of supercritical water (SCW) at 400°C and 30 MPa with and without admixture of zinc or aluminum, have been investigated. It has been shown that as a result of SCW treatment, the molecular weight of the resins and asphaltenes decreases two- to fivefold in comparison with the components of the initial asphaltite. This is determined by a decrease in the number of structural blocks in the molecules which become more compact due to the decrease both in the number of rings, predominantly naphthenic ones, in the blocks and in the number of carbon atoms in the aliphatic substituents. The fraction of aromatic carbon atoms substantially increases, and the degree of substitution of the aromatic nucleus decreases in the resins and asphaltenes isolated from the conversion products. The differences in the structural chemical characteristics of the resins and asphaltenes manifest themselves to a greater extent in the case the metal admixtures.
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U2 - 10.1063/5.0034692
DO - 10.1063/5.0034692
M3 - Conference contribution
AN - SCOPUS:85098010705
T3 - AIP Conference Proceedings
BT - Proceedings of the International Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology
A2 - Panin, Victor E.
A2 - Fomin, Vasily M.
PB - American Institute of Physics Inc.
T2 - International Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology 2020
Y2 - 5 October 2020 through 9 October 2020
ER -