https://orcid.org/0000-0002-3755-7764
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ABSTRACT
Changes in the composition and properties of heavy oil during thermolysis in the temperature range of 250–410°С in the presence of molten sodium without hydrogen has been studied. Addition of sodium results in the decrease in the sulfur content in the products of thermolysis by the factor of 1.5 at 250°С and a more than two-fold decrease at 350°С and higher. A decrease in the sulfur content without sodium is recorded only during thermolysis at 350°С and is less than 10%. Viscosity and density of the products of thermolysis with and without sodium almost do not differ and correspond to nearly 90 mm2/s at 20°С and API gravity is higher than 26, respectively. Effect of sodium on the quantitative distribution of components (hydrocarbons, resins, and asphaltenes) in the products of thermolysis and distillate fractions i.b.p.−350°С is insignificant. The amount of vanadium and nickel weakly depends on the presence of sodium in the process of thermolysis of heavy oil. Addition of sodium results in the growth of insoluble particles in the products of thermolysis.
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Notes on contributors
Igor P. Kosachev
Igor P. Kosachev, PhD, Senior Researcher, Laboratory of oil and natural bitumen processing, Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS. Scientific interests: processes of physicochemical conversion of the petroleum hydrocarbons.
Dmitry N. Borisov
Dmitry N. Borisov, PhD, Senior Researcher, Laboratory of oil and natural bitumen processing, Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS. Scientific interests: processes of physicochemical conversion of oil stock.
Dmitry V. Milordov
Dmitry V. Milordov, PhD, Junior Researcher Laboratory of oil and natural bitumen processing, Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS. Scientific interests: physicochemical transformations of high molecular hydrocarbons.
Nikolay A. Mironov
Nikolay A. Mironov, PhD, Junior Researcher, Laboratory of oil and natural bitumen processing, Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS. Scientific interests: physicochemical transformations of high molecular hydrocarbons.
Svetlana G. Yakubova
Svetlana G. Yakubova, PhD, Senior Researcher, Laboratory of oil and natural bitumen processing, Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS. Scientific interests: processes of physicochemical of high molecular compounds.
Makhmut R. Yakubov
Makhmut R. Yakubov, PhD, Deputy Head of Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific Center of RAS, Head of Laboratory of oil and natural bitumen processing. Scientific interests: processes of physicochemical conversion of oil stock.
Airat I. Shamsullin
Airat I. Shamsullin, Head of the hydrocarbon processing department of the Petroleum and Petroleum Products Sales Department of PJSC “TATNEFT”. Scientific interests: processing oil.
Tagir S. Aynullov
Tagir S. Aynullov, PhD, Deputy Head of Processing Department of the hydrocarbon processing department of the Petroleum and Petroleum Products Sales Department of PJSC “TATNEFT” Scientific interests: processing oil.
