English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

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 mm 2 /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.

Changes in the composition of heavy oil during thermolysis in the presence of molten sodium without hydrogen