METHOD OF OBTAINING HYDROCARBON DISTILLATES WITH LOW CONTENT OF SULFUR Russian patent published in 1999 - IPC

Abstract RU 2125586 C1

FIELD: petroleum processing. SUBSTANCE: sulfur constituents of liquid hydrocarbon stock are oxidized with 50-100% nitric acid into sulfoxides, sulfones, and sulfonic acids, after which hydrocarbon stock is distilled. Nitric acid is added in quantity from 0.4 to 2.0 mole per 1 mole of total sulfur. High-boiling oxidation products remain in vat residue of distillation process, and distillates are obtained with low level of sulfur. EFFECT: reduced consumption of nitric acid and simplified procedure. 2 tbl, 13 ex

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RU 2 125 586 C1

Authors

Shakirov F.G.

Mazgarov A.M.

Vil'Danov A.F.

Khrushcheva I.K.

Sappaeva A.M.

Dates

1999-01-27—Published

1997-01-16—Filed