Concentration of paramagnetic centres at low-temperature thermal destruction of asphaltenes of heavy petroleum distillates
Abstract
Changes of paramagnetic centers (PC) concentration in dispersed petroleum systems were studied in the process of low-temperature thermolysis. The kinetic model of PC concentration dynamics based on the processes of unpaired electrons formation during singlet-triplet transitions, weak chemical bonds dissociation and recombination of free radicals is proposed.
Keywords
petroleum disperse system,
asphalt,
asphaltene,
paramagnetic centers,
temperature dependence,
EPR,
ESR
Supporting agencies: The work was funded by the subsidy of the Russian Government to support the Program of competitive Growth of Kazan Federal University among World’s Leading Academic Centers and by the Project Part of the state support of Ministry of Education of Russian Federation.
About the Authors
M. U. Dolomatov
Bashkir State University; Ufa State Petroleum Technological University
Russian Federation
Russian Federation
Validy 32, Ufa 450076; Kosmonavtov 1, Ufa 450000
A. A. Rodionov
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
M. R. Gafurov
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
A. V. Petrov
Russian Federation
T. B. Biktagirov
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
R. Z. Bakhtizin
Bashkir State University
Russian Federation
Russian Federation
Validy 32, Ufa 450076
S. O. Makarchikov
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
I. Z. Khairudinov
Institute of Petroleum Refining and Petrochemistry
Russian Federation
Russian Federation
Iniciativnaya 12, Ufa 450065
S. B. Orlinskii
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
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Review
For citations:
Dolomatov M.U., Rodionov A.A., Gafurov M.R., Petrov A.V., Biktagirov T.B., Bakhtizin R.Z., Makarchikov S.O., Khairudinov I.Z., Orlinskii S.B. Concentration of paramagnetic centres at low-temperature thermal destruction of asphaltenes of heavy petroleum distillates. Magnetic Resonance in Solids. 2016;18(1):16101 (7 pp.).
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