Change in the Hydrocarbon and Component Compositions of Heavy Crude Ashalchinsk Oil Upon Catalytic Aquathermolysis
- Authors: Foss L.E.1,2, Kayukova G.P.1,2, Tumanyan B.P.3, Petrukhina N.N.4, Nikolaev V.F.1, Romanov G.V.1
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Affiliations:
- A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan’ Science Center, Russian Academy of Sciences
- Kazan Federal University
- I. M. Gubkin Russian State University of Petroleum and Natural Gas
- A. V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
- Issue: Vol 53, No 2 (2017)
- Pages: 173-180
- Section: Research
- URL: https://journals.rcsi.science/0009-3092/article/view/234898
- DOI: https://doi.org/10.1007/s10553-017-0793-7
- ID: 234898
Cite item
Abstract
A physical model has been developed for the aquathermolysis of heavy crude oil from the Ashalchinsk oil field at 250°, 300°, and 350°C. Nickel and cobalt carboxylates were used as oil-soluble catalyst precursors. In the presence of a hydrogen proton donor at 300°C, the oil content was found to rise considerably and the resin content was found to decrease by a factor of 1.8, which leads to a decrease in crude oil viscosity by 91% and a decrease in density from 960 to 933 kg/m3. The hydrocarbon composition of the liquid aquathermolysis products was studied by chromate-mass spectrometry. The average molecular weight of the asphaltenes was determined by matrix-assisted laser desorption/ionization (MALDI) spectrometry. The maximum disproportionation of the hydrocarbons into n-alkanes, alkylcyclohexanes, and alkylbenzenes occurs at 300° and 350°C. The composition of the hydrogen proton donor (tetralin) conversion products at these aquathermolysis temperatures was determined.
About the authors
L. E. Foss
A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan’ Science Center, Russian Academy of Sciences; Kazan Federal University
Author for correspondence.
Email: iacw212@gmail.com
Russian Federation, Kazan’; Kazan’
G. P. Kayukova
A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan’ Science Center, Russian Academy of Sciences; Kazan Federal University
Email: iacw212@gmail.com
Russian Federation, Kazan’; Kazan’
B. P. Tumanyan
I. M. Gubkin Russian State University of Petroleum and Natural Gas
Email: iacw212@gmail.com
Russian Federation, Moscow
N. N. Petrukhina
A. V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
Email: iacw212@gmail.com
Russian Federation, Moscow
V. F. Nikolaev
A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan’ Science Center, Russian Academy of Sciences
Email: iacw212@gmail.com
Russian Federation, Kazan’
G. V. Romanov
A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan’ Science Center, Russian Academy of Sciences
Email: iacw212@gmail.com
Russian Federation, Kazan’